Cracked thermostat housing leaking

After finding yet another coolant leak on the sonic, the fourth in two years, it was found that this time the thermostat housing had cracked. It can withstand both heat and exposure to water and coolant better. With that said, while youre addressing the leak from the thermostat housing you should be aware of this common problem area. Thermostat housing replacement cost repairpal estimate. Reasons for thermostat leaks in minis louden motorcar. Replace the thermostat housing, stop that leak and see what happens next. Top 5 reasons why your car is overheating duration. Mercury grand marquis questions i have a 2000 grand. I started to have coolant leaks from the thermostat cover. Theres an additional area leaking coolant on the chevrolet cruze. If its leaking at the bottom as all the ones ive encountered do then the orings could be to blame or a cracked housing. So my lower radiator hose wont stop leaking where it meets the fitting toward the motor. This is a how to video on changing the thermostat housing in a 2003 mercury mountaineer 4.

The thermostat gasket is most likely what is causing the leak. These are notorious for separating at its bonded locations. Before we get to how to fix a coolant leak, lets talk about why it is important to fix your leak quickly. The 19972001 ford explorer v8 with a 100% plastic intake manifold is known for engine overheating, even with normal use, and a coolant leak from the front of the manifold. I have tried two different types of gaskets, two gaskets along with gasket sealer, and then i just went back to one factory gasket. Plastic intake manifold may crack causing coolant leak. Thermostat housing leaks coolant thermostats charger leak. This is essentially the tube formed by the thermostat housing. What can cause the thermostat housing to crack or leak oil. If it is leaking at the seam which connects the upper to the lower parts of the housing then the housing would be the culprit. Ive switched hoses, but regrettably had to use an aftermarket hose.

Thermostat housing wont stop leaking for a bodies only. If your car is leaking coolant, it will run normally until the coolant level gets too low. If you only have a teaspoons worth of coolant on the manifold, remember to clean it off as it wont evaporate as easily as water most coolant is antiboil as well as antifreeze, you could just be looking at the remainder of the leak. At first i thought it was the hose, but after getting it all dried off and getting some light on it, i discovered it is actually coming from the connection the hose goes on, about 14 from the hose. Thermostat housing leak 1990 to present legacy, impreza. You could put a light dab of sealant in the lower stepped portion if you like. Replace your old, cracked or leaking thermostat housing with a high quality austekk aluminum thermostat housing. I know it overheated but what would be the root cause. This will often trigger the check engine light and low engine coolant warning light the engine coolant leak is from a factory defect, which causes cracking on the front coolant passage of the intake.

I wrapped it around the thermostat like the old one was. So, i reopened the housing, replaced the new thermostat for the original thought it might be due to the nonbmw thermostat i used and replaced the oring on the cover. I cannot get my thermostat housing to stop leaking. How to fix repair leaking thermostat housing ford 460 big block duration. Is my thermostat housing cracked and i just cant see it. The part which is cracked on my gt is where the thermostat sits inside of. That leak might cause some to overtighten the bolts holding the. Use the teflon thread sealant on the thermostat housing bolts.

For more than a month, i have been noticing coolant leaking from the thermostat housing. The 2015 audi s3 has 1 problems reported for coolant leak at thermostat housing. Clean the housing inside and out with carburetor cleaner and a rag. Finally after trying this and that i bought some permatex 2 form a gasket sealant and put a nice coat on both sides of the gasket and mounted. Thermostat housing leak for a bodies only mopar forum. The thermostat housing can be made of metal or plastic. I have a chrome one as well and i had a devil of a time trying to get it not to leak.

Ive been looking online and i think the thermostat housing is actually the part that sits on top the thermostat itself. You might find antifreeze leaking from the recovery tank hose. Im working on a 79 mustang with a built up motor and its leaking coolant at the thermostat housing. The chevy cruze coolant leak is a problem on the rise. Upon close inspection, where i had to remove throttle body, i noticed a hairline crack in the area where the screw is. The housing and intake had been powder coated previously, but i stripped both down to bare metal. The thermostat housing is a square plastic block that is bolted to the cylinder head. After the first use of rtv i started getting coolant leaking out of the bolt holes, more rtv on them and that seemed to fix the problem but i still have the coolant coming past the clamp. There isnt a gasket, you just lay a bead of rtv in a groove thats in the thermostat housing and bolt it together. If you look at pic 1, i highlighted the oddly shaped o ring. Place the thermostat housing upside down in a bench vice. Hello, i replaced the thermostat and oring a few weeks ago and have done so about 2 other times, but still get leaking. Scrape all the old gasket material off with a gasket scraper. Learn how to fix a cars thermostat housing with expert automotive tips in this free online car maintenance and repair video series.

There is no said gasket just the rubber ring gasket that seats around the lip of the thermostat which in turn sits in a stepped depression and surrounded by the outer flat edge of the waterpump and housing assys. I need opinions on the fix for this leak at the thermostat housing. Thermostat housing cracked and is leaking on a 2001 ford fous. On the side where the block contracts the cylinder head, around the coolant hole, theres a groove machined into the plastic that contains an oring, that seals that surface. Ive read where the thermostat housing cracks but i. Tacomas 19952004 started by fujimori17, nov 24, 2015. Ford uses a twopiece hard plastic housing non metal and if you insert the oring before the thermostat then it will leak. Hello everyone, first let me say i am the newly proud owner of a 79 capri rs, 302 2bbl,3 speed od, body is straight and motor is strong, the probelem im having is that the gasket was leaking on the thermostat housing so i wanted to fix it. Either i did not install the thermostat gasket right or this housing is crap. On the side where the block contracts the cylinder head, around the coolant hole.

I also put sealeant inbetween the housing and intake. Youre starting to see lots of customers complain about problems and symptoms stemming from a low coolant situation. I have put in new thermostat and gasket and it is still slightly leaking around lower left side of housing. Zabteck performance austekk aluminum thermostat housings. The most common engine you find in these automobiles remains the 1. It could also be a crack in the plastic structure of the thermostat housing which is causing the leak. Where the water pipe goes into the thermostat housing, there is an oring around the pipe that may be leaking. Go to pick n pull, grab a new housing, throw it on with just rtv, leaking. I suspect that coolant is leaking from that oring and coming out right where you are seeing it. The gaskets overtime become hard and lose the ability to seal the coolant passing by the thermostat.

When i first noticed a leak i just decided to replace the thermostat while in there. Anyone else have had problems with their thermostat. The replacement of the thermostat and gasket is the most prevalent fix. Main reasons your minis thermostat housing leaks mike. If you have coolant on the top of the engine it could be a leaky thermostat housing or a leaking.

Some of the older models of minis are known to experience radiator and thermostat housing leaks, but the most common problem with a coolant leak in a mini cooper. After researching, i found that the thermostat housing likes to go out, in my case due to an oil leak from shitty valve cover gaskets letting the hot oil drip on the cheap plastic housing. What are the symptoms of a bad engine coolant thermostat housing. If you spot any of these symptoms in your mini cooper, it is a sign that your thermostat housing is. If a vehicle is overheating, a bad thermostat could be the problem, and a damaged thermostat housing is more likely to produce a coolant leak, either from a cracked or warped housing or a failed seal to the engine. How to fix a leaking thermostat gasket it still runs.

We provide more information about it at the end of the article. To me, it looks like a gasket issue but i know there is no gasket from the factory. Cant get coolant to stop leaking around thermostat housing. So when my car started overheating, i did my normal checkout, found out my fluid was leaking, i ruled out bhg just because the signs werent there. I had the same issue on 20 jk, coolant seepage around the bleeder screw on the thermostat housing. Drain the coolant from the radiator petcock, not fully, just enough to get the coolant level below the thermostat housing. How to fix repair leaking thermostat housing ford 460 big block.

Just wanted to follow up, you guys were right per usual and it was in fact the thermostat that was leaking. While mini coopers are known to be highquality vehicles, they have been known to experience coolant leaks. I got myself a new thermostat and gasket, put some copper rtv on the gasket, and threw it on. Of course, the housing comes as one unit, so you have to replace the whole thing. Reasons for thermostat leaks in minis posted on december 3, 2018 by wpcars. The cost of repairing the thermostat housing is very minuscule in comparison to some of the damage that can be done to your mini cooper over time if you do not rectify the situation in a timely manner. I used an aftermarket bs4 oring, not an original bmw part. Yeah the chrome steel housings are also next to impossible to stop from warping when you bolt them an alloy manifold, horrible idea. It is weeping quite a bit around the seam where it joins the intake.

What would cause the thermostat housing not only crack but, a chunk blew off and of course spewed antifreeze all over. Thermostat housing repair cost ford fiesta club ford. This was identified by the dealer and another mini specialist mechanic. Hi all, was wondering if i could have some input on the price i was just quoted on my fiesta mk6 1. Place a flat file over the thermostat mounting surface and gently file down the seat edges until bare metal shows. The problem stretches back to the 2010 chevy cruze models and weve seen them on the 2016 models as well. It doesnt look like the block itself is cracked as coolant only looks to be coming out the side of that piece.

601 318 650 1003 1192 1122 365 351 1271 288 957 763 224 1137 616 312 238 551 461 407 1219 895 492 1301 985 477 487 423 171 847 469 1422 1441 492