Coolant Leaking From Timing Belt


My car started leaking a sizable amount of coolant recently and I suspected the water pump to be the problem. We caught it when the car was cool and parked, so no biggy. No puddles on garage floor as of yet. If that’s where you discover the coolant leak. Just over a month ago I took it to the dealer for oil change and coolant flush. Anyone have part numbers for the timing belt tools for the 98? Specifically the cam gear holder and the crank pulley holders? I am not sure what the price on them is, but the timing belt only seems to be about $50, so even if it is $200 total that is a lot less then taking it to the dealership. Timing Chain Instead of a Timing Belt Coolant leak. With links to all the necessary parts, special service tools (SSTs), and detailed instructions, this is your best resource. Depending on engine design, a timing belt may also spin other pulley wheels that drive a coolant pump, oil pump, or fuel pump. You shouldn't run straight coolant. 1A Auto shows you a common problem and fix that can cure low coolant even though it appears you are not leaking coolant on to the ground. Cooling System Stop Leak ok? Coolant types and mixing. Which timing belt/water pump kit to get? Coolant Leak Passanger Side, Near heater? There is a lot of coolant leaking out of a spot on the passenger side, at. check for drips under the car after sitting all night. If you use an improper coolant mixture, your engine could overheat and be badly damaged. Oil Leak from under the timing belt cover So I decided to finally replace my timing belt and fix an oil leak that's been coming from between the timing cover and the block. like cam/crank seals. Now that I know what the vehicle is, it is probably the valve cover gasket faulty letting oil leak down onto the front of timing chain cover. The first day after a 20-minute drive I parked and the car spilled out over a quart of coolant. CARspec has been asked how to time the 1MZ 3. You're starting to see lots of customers complain about problems and symptoms stemming from a low coolant situation. was looking at schematics online and was wondering if its possible that coolant is leaking from the cylinder front cover gasket/cylinder front cover. This is what I removed in stages, including unspooling belt yarn off half the width of the crank sprocket. The coolant leak was created by a small crack in the neck of the radiator where the hose attaches. Parts are about $30. I first noticed the problem when my heat stopped working. Belt is dry, there is a small puddle that I found inside the timing cover, but I think it migrated there. I am not positive it is the water pump given where the drips are, so had to just do water pump and still have a leak. Replace the hose(s) if you notice coolant coming out of them. 3 V6 (2000) e. This is a timing belt change + a half hour to undo the 7 or 8 bolts that hold the pump on (as well as drain the cooling system). I tried prestone stop leak pallets but that only cut the leak by 50%. if you left any of the old gasket on the pump or timing cover that would let it leak. Do you own a 2006 to 2009 Honda Civic with a coolant leak? You could be in luck. So it's easy to see what an important role a timing belt plays. I've used it as my daily driver, but I don't have a long commute - it's only up to 135K now. Water pumps are driven by the timing belt, or an accessory drive belt that spins a pulley outside of the pump which turns the internal impeller. Tucked away at the front of your engine, the timing cover is often buried under fans, belts, pulleys and other components that make it difficult to inspect, which means you might not automatically connect it to the puddle you’ve found under your vehicle. Leaking coolant will ruin the belt. If the water pump on your vehicle is visible, you can check your pump by looking around it for leaks or signs of rust or corrosion around the seals. The repair slip says "replace timing belt, water pump, seals, & drive belts". can Timing cover gasket failure leak coolant into chain compartment / oil I have taken some time to search through both the newbie forum as well as one of the other tech forums. cambelt), coolant, water pump just everything was a nice car and not too bad to do. CARspec has been asked how to time the 1MZ 3. Blauparts Vw water pump replacement 'Service Bulletin' pdf. Never compromise on water pump quality!. A broken gasket is not the only reason why oil might be leaking from the timing cover. A leaking water pump is a more difficult replacement, particularly on vehicles that use the timing belt to drive the water pump. I've finally determined that the coolant leak is coming from the timing cover gasket- it's a fairly slow leak, but enough to leave a 6" diameter wet spot on the concrete after sitting overnight. 4 liter V8 (M62) engine, and you have a coolant leak from a small weep hole in the front timing cover, be very careful it is not misdiagnosed as a water pump or valley cover problem. It's a slow leak auout two months. 158 Responses to “Defect Alert – Chevrolet Cruze Coolant Leak” #1 dan dault says:. Specifics will vary depending your application. Picked this old girl up for 900 bucks. Coolant leaking from the area around the water pump. timing belt; many use timing gears or a timing chain instead. Coolant BASF Glysantin. This belt replacement should not be attempted by novice mechanics. Timing chains and belts can wear out or break, requiring replacement. Some mechanics place a sticker on the engine when a timing belt is replaced. They quoted me $1700 which included head gaskets, valve cover gaskets, timing belt and water pump. Hi all I have coolant coming out of the timing belt cover is there a tell tale hole on the water pump where this may be coming from or is it likely to be. On the other hand, a worn out timing belt may break and damage your new water pump. Cooling System Stop Leak ok? Coolant types and mixing. A leaking coolant pump can leak onto the timing belt and cause it to tear. Took top timing belt cover off and look at top of water pump for leak, it was dry. It was wrongly assumed that it was a manufacturer defect. However after that I noticed the car would overheat after about half an hour's drive, and start leaking coolant. Got everything good and hot. A broken gasket is not the only reason why oil might be leaking from the timing cover. I looked underneath and I have a coolant dripping out of my timing belt cover. Coolant can leak from the reservoir or from the hoses, in 2005 Equinoxs with the 3. I encountered a slight and intermittent coolant leak between the timing chain cover and the left side of the engine block. Never open, service or drain the radiator or cooling system when hot; serious burns can occur from the steam and hot coolant. Posted January 17th, 2014 by Central Avenue Automotive & filed under Cooling System, Engine, Parts. If your car ran fine and then the motor stopped suddenly with a clunk and won't restart, it is likely your timing belt. Coolant Leak at Timing Chain Cover?. Then remove all of the little bolts holding the timing belt covers on and remove the timing belt as described in the previous article. The presence of coolant can be detected by shining a black light on what appears to be an oil leak; the appearance of coolant will show up under the black light. The video above shows you where the coolant reservoir, hoses and connections on your 2005 Equinox LS are located and the steps needed to fix minor leaks. You can try snugging/tightening up the cover bolts to see if that helps/stops the oil leak as a first step. As of now using stop leak appears to have stopped leak for now. if you left any of the old gasket on the pump or timing cover that would let it leak. He replaced the compressor and the drier. The solution was to replace both caps and obviously the timing belt. The post claims they warranty their products for life. Care should be taken not to damage the seal housing as that could cause a further leak. The engine in these cars is mounted sideways, so if the pump is leaking, you may find a puddle of coolant on the ground under the passenger side of the engine just behind the front-right wheel. It is right next to the crankshaft pulley. when i started it up it ran fine, when it warmed up it started leaking coolant off the bottom of the passenger side timing cover. It’s best not to gamble in a situation like that and just get the water pump replacement done at the same time as the timing belt. However after that I noticed the car would overheat after about half an hour's drive, and start leaking coolant. Like serpentine and V-belts, timing belts can and do fail. Does anyone have any idea why I would be leaking coolant after I had my timing belt and water pump replaced? I see coolant dripping down to the ground with the engine running and the heater on hot. Had mechanic look at leak he says timing cover gasket. Hi started my 84 gw and green antifreeze dripped from the timing Belt covers. Well, the timing belt should be replaced about every 80,000 miles or so and they might have to remove the valve covers to gain access to the timing belt. It is a vauxhall corsa c 52 reg. Openbay is an online source that connects you with multiple auto service professionals nearby who will compete for your auto repair and maintenance business. oil leaking from the timing. I did not know that the chain drive had antifreeze in it. Remove the serp belt so you can isolate the noise as well. Remove serp. especially if your intent is to get it repaired properly (which frankly, is unlikely given the value of the car and potential costs of repair). Because of the difficulty in replacing such a pump, it is wise to replace it when the timing belt is replaced. Rent a tool for the crank serp pulley/bolt. Coolant leak above thermostat against block behind water pump not on the head gasket seam. 8L engine have a timing belt. Discussion Forum: Coolant leaking around timing belt cover • GL1100 Information & Questions • The premier web site for Goldwing technical information, DIY tutorials and community discussion. 0 L engine (Chrysler): replace water pump and timing belt and oil seals The pump or the pump gasket will leak. Now, less than 3k miles later my car is leaking oil, and i'm pretty sure it's using coolant as well. com happening on Monday. 5l '05 300 Touring Not sure I have I diagnosed this correct. looked under expecting to see leaking hose but NO. 2006 Chevy Monte Carlo 3. and if getting "in there" to the pump then exposes timing belt, change it too. No notation on if the water pump and timing belt had been changed. Felpro head gasket set Head bolts Water pump Water pump gasket Timing belt Timing belt tensioner Thermostat Upper radiator hose Lower radiator hose MotorCraft Platinum plugs Spark wires Oil + filter Coolant Coolant temperature sensor 60+ fluid ounces of carb cleaner Red RTV gasket maker (high temp made for water pumps!) _____ ~$355. I could see roughly where it was coming from but not source, this is a pretty decent photo. If you ran it out to a fan belt, it would be in the way of the timing belt while doing it, or it would be a really awkward mess trying to work around it. Timing Chain Instead of a Timing Belt Coolant leak. Never compromise on water pump quality!. It comes in a 3. The Great MKIII Jetta Golf 2. Having a shop replace the timing belt for you is going to cost you some decent coins. Slow coolant leak on Fiesta 3. Thus, the standard recommendation is to replace the water pump at the same time as replacing the timing belt. This Assembled By ECS B5 s4 Build Your Own Timing Belt Kit (2000-2002) (Mfg#078109119JKT9) fits Audi B5 S4. Said it was 8 hour job. Set the timing to TDC (Top Dead Center). 8 hrs depending on if you have PAS or an EGR fitted + add an additional 0. We caught it when the car was cool and parked, so no biggy. Any oil coming out of that shaft will ride along the belt and splash everywhere making it difficult to find the leak! Good luck bro. Car started to run hot (not in red) and could not find leak. OP: That leak around the thermostat housing is something to be concerned about. Leaks are the most common sign of water pump failure, but what type of seepage are you seeing and what does it mean? A coolant leak coming from the weep hole is a sign of water pump bearing or seal failure. Makes me think it is a steady drip from somewhere, but I can't find it. Sometimes, an engine develops oil leaks around the belt area, which causes the belt to get soaked in oil, see the photo. One is an electric "coolant transfer pump", #2 is an electric coolant pump for the interior heater, #3 is an electric inverter coolant pump, and #4 is the engine coolant pump, belt driven from the crankshaft. Your engine will run better, your car will hold coolant, and you can expect more reliable car operations. Water pump and timing belt done at Lexus dealership by original owner at 98,000 miles. In turn the pump housing was trashed as well and I had to replace the oil pump. Thus, the standard recommendation is to replace the water pump at the same time as replacing the timing belt. Check the turbo water line connections. I knew this day was going to come eventually, so here I am. If you notice that oil is leaking from the center of the motor, near the front, it may be due to a faulty timing cover or timing cover gasket. Coolant leak around timing belt area? Lexus Es300. Replaced the coolant as a matter of course. then theres the coolant elbows, they like to leak. Fixing a coolant leak as soon as possible is crucial. I can see a T-shaped hose at the back of the alternator/ water pump, but it appears to be coming from above there. And to emphasize, it is a strictly mechanical problem - coolant leak. So from what I've read the most likely cause is the crank seal. Discussion Forum: Coolant leaking around timing belt cover • GL1100 Information & Questions • The premier web site for Goldwing technical information, DIY tutorials and community discussion. So I just picked up my second 4th gen Camry. A coolant contaminated timing belt will have a reduced service life. We apologize for the inconvenience. Sometimes, an engine develops oil leaks around the belt area, which causes the belt to get soaked in oil, see the photo. My 2004 Taurus has been very reliable and well maintained. However, if a timing belt breaks or slips on its pulleys, the engine may not run and. We were looking at the fluids and my husband seemed to think the coolant looked a little low, but to be honest, it was still between the min-max marks so I didn't think too much of it. It still leaks. once it got to to full operating temp, it was leaking on to the bottom side of the head at the exhaust and dripping on to the exhaust. I have tightened the timing belt to tight before and trashed the seal for the oil pump. Had mechanic look at leak he says timing cover gasket. So they are going to dig into the water pump today. Just over a month ago I took it to the dealer for oil change and coolant flush. Want to hold off if possible, but don't want to cause damage that will cost $$. Be sure to have the coolant drain container under the area where you are working because the hoses tend to leak quite a bit. can't tell if its gasket or the actual coverAnyone else have the bypass hose blow or is it just me?. You do that by attaching a cooling system pressure testor, which is basically a pump that attached where the radiator cap goes. Because the VG30DE(TT) is an interference engine, maintaining the timing belt system is essential. I then checked the coolant levels after it cooled and was. They tend to start showing strange grooves on the tensioner. heres a link its number 6 and 7. We were looking at the fluids and my husband seemed to think the coolant looked a little low, but to be honest, it was still between the min-max marks so I didn't think too much of it. No play in the shaft at all. It's more likely leaking coolant from the water pump, which is not driven by the timing chain. You have a leak somewhere. Coolant leak under timing cover 1 Answer. Tucked away at the front of your engine, the timing cover is often buried under fans, belts, pulleys and other components that make it difficult to inspect, which means you might not automatically connect it to the puddle you’ve found under your vehicle. When driving your Volvo, it is always important to be observant and familiarize yourself with the car’s typical operation. The only way to correctly replace the timing chain cover gasket is to drop the oil pan too. So they built a passage to dump the coolant out behind the AC compressor. Coolant shoots up off the belt. Your engine will run better, your car will hold coolant, and you can expect more reliable car operations. Having a mechanic or repair shop replace the timing belt (and possibly the serpentine belt and accessory belt at the same time) can cost $150-$1,000 or more, depending on the make, model and type of vehicle. Timing belts rarely break on their own for no reason. I have just topped up, its been about 3/4 weeks (I know bit long in between checks) but have discovered the coolant was just below the minimum line, no warning lights came on though. Of course Gates pumps have a bad rap (I’m a big fan of their belts and hoses and newer OE timing kits with genuine bearings, but I don’t use their pumps which they decided to get into). Then add the appropriate stop leak pellets to the coolant as specified by the manufacturer to correct micro porosity in the gaskets. O'Reilly sells a 13x835 for this application, which seemed obvious, so I bought it. The leak is coming from somewhere above the drain pan and I can't seem to find where it's leaking out of. its only a few drops a night. A timing cover that is marginal on the sealing surface will likely leak again. The only exception: we had a leak into the timing belt area from the cylinder head. Care should be taken not to damage the seal housing as that could cause a further leak. Skip navigation 92 Sunbird H2O pump water pump coolant leak 2 liter timing belt marks on a. the timing cover is sealed to the engine block, so you should NOT have coolant leaking from it, if you do, as "ScarO" says you could have big problems. What happens when this component gives up the ghost, and how hard is it to fix by yourself? A timing belt is the. Image 2) Water pump removed from a Vw 2. not trusting quick fit to do the job, i had the water pump, timing belt and alternator belt replaced at rovetec (an MG specialist). I've dealt with it as much as possible, but now it is leaking quite badly. So last weekend I changed the timing belt, water pump, hoses and belts. I discovered after getting a pressure test done on my 1999 3. Car Belt & Hose Replacement. Check around the area for any orange/yellow looking staining on the engine near the water pump etc as coolant leaves stains where it is dripping. 2009 MAZDA6 CX-9. A leaking head gasket can be classified as either external or internal. Had mechanic look at leak he says timing cover gasket. Comments Off on Discovery 3/4 Range Rover Sport TDV6 Timing Belt It’s quite interesting to note some of the features of the TDV6 engine when stripped – particularly the location of the timing belt, the high pressure fuel pump, the fuel cooler, oil filter and the top coolant neck. It’s pretty easy to spot. I have tightened the timing belt to tight before and trashed the seal for the oil pump. Discussion Forum: Coolant leaking around timing belt cover • GL1100 Information & Questions • The premier web site for Goldwing technical information, DIY tutorials and community discussion. Because the VG30DE(TT) is an interference engine, maintaining the timing belt system is essential. It was a real bugger to fix. Noticed coolant was a bit low, looking under the truck I saw a bit of pink fluff on the trans bell housing. Maintenance time for this end of the engine= seals and timing belt, the timing belt has to come off to change the pump anyway. Coolant leak under timing cover 1 Answer. I would pm blackworks the Toyota techI seem to recall him mentioning water pump leaking and timing belt threats from the leak. That went well and is well sealed. Car started to run hot (not in red) and could not find leak. once it got to to full operating temp, it was leaking on to the bottom side of the head at the exhaust and dripping on to the exhaust. Timing Belt. It’s best not to gamble in a situation like that and just get the water pump replacement done at the same time as the timing belt. Of course, a coolant leak doesn’t always mean the water pump shaft seal has reached the end of the road. When it died there was steam/water coming out of the timing belt cover, coolant leaking out of the cover under the car, and a sort of a burnt rubber/clutch smell, which I'm guess was the belt burning over the water pump when it seized. Picutes of some common areas of coolant leaks on the GM 3. Once it is low, there will not be enough coolant to keep your engine at the normal operating temperature and the engine will overheat. The timing belt connects those two big gears so that the movements of camshaft and crankshaft, and everything they're internally connected to, are precisely coordinated. 3 V6 (2000) e. Coolant leaking under Engine, 99% sure its Waterpump. Your engine will run better, your car will hold coolant, and you can expect more reliable car operations. 0 AEG! Pics Inside! unfortunetlly they won't open on my computer and i contact Vasilalov and he don't have them anymore, could somebody send me this post with all the pictures ? i really apreciate that, thanks a lot ! Tony,. Your timing cover gasket might be hiding a secret — and that secret is that it’s leaking. Third if you count the es300 I flipped last month. First I thought I had forgotten to tighten the drain p. From what I read water normally have a small leak right before timing belt change is needed. Care should be taken not to damage the seal housing as that could cause a further leak. It's a slow leak auout two months. Chevy Monte Carlo Questions. As of now using stop leak appears to have stopped leak for now. if the coolant is leaking out a crack, out. If your car is leaking coolant, it will run normally until the coolant level gets too low. hey Anders, yeh mine was the waterpump. Hi guys I just went to get an oil change for my mom's car (2009 toyota corolla) and the technician told me the water pump was leaking coolant. In between the V of timing chain cover is water pump. Leave those to a professional. Dealer told you $1,500 Sounds good, I have shops where you can get everything done for $1,100. But today I found the coolant in the reserver was gone! What could be the most likely point that cause the leaking? During the water pump change yesterday, I only drained the coolant in radiator but couldn't find the drain screw for the pump. Otherwise keep reading for some quick and easy Subaru timing belt tips and tricks. Car started to run hot (not in red) and could not find leak. One is an electric "coolant transfer pump", #2 is an electric coolant pump for the interior heater, #3 is an electric inverter coolant pump, and #4 is the engine coolant pump, belt driven from the crankshaft. Then, line the bright links on the timing chain up with the marks on your camshaft and crankshaft gears to get your engine to top dead center. Replacing a timing belt requires the removal of many parts from the front of the engine. I was able to remove the old seals by carefully poking them with a screw driver and pulling them out. Toyota Tundra: How to Replace Timing Belt and Water Pump. But for that price im not expecting it to fail anytime soon. Yes coolant can leak out the pump when it is bad. I knew this day was going to come eventually, so here I am. No, the timing belt will not directly cause a coolant leak. I've replaced the hose and the radiator. The motor includes a main timing belt and a smaller balance shaft belt. Its primary function is to operate the engine's valves via the camshaft. Gasket leak - sometimes the water pump to engine gaskets will age, become brittle and leak. not trusting quick fit to do the job, i had the water pump, timing belt and alternator belt replaced at rovetec (an MG specialist). Subject: Coolant Leak- Timing Chain Cover IP: Logged Message: My 2000 Dakota has a leak that is running down the right side of the timing chain cover to block gasket. I then checked the coolant levels after it cooled and was. or maybe the thermostat houseing has a leak, and its spraying onto the timing cover. My girlfriend's '96 Miata also has a coolant leak. Example costs of timing belt for the subject of car timing belt, drive belt and coolant flush + labour charge for a BMW 530d e39 Timing kit was needed @ £100. So they are going to dig into the water pump today. The Timing Belt Service (often called the 120k or 60k service) is perhaps the most vital and significant maintenance job for the Z32. But on most cars with a timing belt, the water pump is driven by this same belt. *There's always a mechanical reason the dash needle went into the red zone. Any idea's?? i'm thinking the new pump has a leak. From what I read water normally have a small leak right before timing belt change is needed. Just over a month ago I took it to the dealer for oil change and coolant flush. That was corrected by a recall. Your engine will run better, your car will hold coolant, and you can expect more reliable car operations. The idea is that since you're already doing 90% of the labor to replace the belt, the extra work to do the pump isn't too much. Failure of the pump after belt replacement usually means re-doing the timing belt and can cause the belt to break. My engine coolant light came on for a 92 Mitsubishi. Actually, due to that, I came to it. If your timing belt runs the water pump, check for any pools of coolant that may collect beneath the car when it is stationary. 16 new valves, 4 pistons, a head and a rental car for 2 weeks, all at his expense, he learned his lesson. I have a 2010 Cruze that has coolant issues. i told them i just had it done. By Paul Brand. It was wrongly assumed that it was a manufacturer defect. The changing of the valve cover gasket looks to be a fairly big job for the inexperienced. When I bought it Carfax said it had been replace, but I have 130k miles on it and no sticker under hood showing timing belt service. Our technicians recommend replacing the coolant pump and timing belt every 60,000 miles to help avoid this problem. Of course they asked if I wanted to replace the timing belt as well as the thermostat while they are in that deep into the engine. Coolant leak above thermostat against block behind water pump not on the head gasket seam. the timing cover is sealed to the engine block, so you should NOT have coolant leaking from it, if you do, as "ScarO" says you could have big problems. Sooner or later the oil cooler o-rings and plastic connecting pipe will harden and go bad resulting in an oil leak or coolant leak at the right front of the block. $1300 sounds only a hair high to me, if they're talking about a thorough job. There was no symptoms before, no signs no warnings. My girlfriend's '96 Miata also has a coolant leak. I doubt it is linked. I am wondering if its the head gasket. Most are held on by clips that can be removed with a pair of pliers. In my case, I have replaced the timing cover gasket for a leak originating from the top right area of the cover. And a check engine light. The problem is intermittent, however today was particularly bad as it was bleeding out of that hole and pooling on the pavement underneath the car. If so-likely the issue of the noise. There are really only three common causes for coolant leaks, although each type of leak has several possibilities, varying in severity. So from what I've read the most likely cause is the crank seal. if a water pump is driven by a timing belt , the _____ and the _____ usually have to be removed to gain access to the pump lubrication system, combustion chamber a cracked cylinder head, cracked engine block, defective head gasket, could cause coolant to leak into an engines. Within that thread, on page 5 is an email for the (I believe) manufacturer of the radiator. Coolant also does NOT contaminate the timing belt. Started car, and it ran for 20 minutes with AC on and nothing. I've had cars leaking for a month and then had the pump seize and start to burn the timing belt and I've seen others last for several months. Coolant Leak at Timing Chain Cover?. 4l dohc and was driving down the road and a big cloud of smoke came from under the hood then car wasnt able to keep going highway speed and came to a stop and wouldnt start again. I've replaced the hose and the radiator. My sons 2003 GT was leaking coolant in two places. After further inspection it seems my bypass hose to the waterpump blew and then it seems to be leaking out of the timing cover. Engine heat, vibration and moisture can cause these parts to wear down and break. It had absolutely no leaks. Looks like it's from bottom bolt of water pump. Timing belt/water pump replacement by yourmechanic. and if getting "in there" to the pump then exposes timing belt, change it too. I don't see any hoses leaking that I can get to. Timing belt water pump and t stat just done coming from housing need some insight into how the gaskets go - Answered by a verified Audi Mechanic. It only costs about $10-$15 to replace a vehicles thermostat and is one of the easiest repairs you can do yourself. I failed to mention that the water pump was replaced about 5K miles ago (as was the timing belt, tensioner, pulley, seals). Any help with coolant bypass tube leaking. These engines have a small metal heater tube that runs from the front of the engine under the intake manifold. I'm now wondering if its the reservoir. Do I have to pull the rear timing cover & replace the 2 small round inlet/outlet seals and large round middle seal that mate cover to front of engine?. belt, thermostat, a few gaskets and new camshaft seals to address the oil leak. 2013 Edge SEL with 3. Cheapskate and SuckersWalk - The new radiator was installed 7 months ago when I had the timing belt done. So they are going to dig into the water pump today. Check the belt during routine maintenance and always ensure that the belt is changed at the manufacturer's recommended change intervals. I have tightened the timing belt to tight before and trashed the seal for the oil pump. You do that by attaching a cooling system pressure testor, which is basically a pump that attached where the radiator cap goes. A main shaft seal is used to prevent coolant from leaking from the pump housing. I looked underneath and I have a coolant dripping out of my timing belt cover. 1A Auto shows you a common problem and fix that can cure low coolant even though it appears you are not leaking coolant on to the ground.