oil filter housing leak

[sonic daddy]

We changed the tranny fluid and the engine oil today now we have leak from the plastic oil filter cap new oring new oil filter any idea what could be wrong?

 

[RMinNJ]

Oring moved or cap cracked? Possible it went on crooked?

 

[sonic daddy]

Oring moved or cap cracked? Possible it went on crooked?

O ring looked good cap went on straight possible its cracked not sure I will replace with new cap tomorrow don't Know what else to do.

 

[sonic daddy]

Figured out what was leaking the nut on top of housing leaks where it's mounted to housing.

 

[gokaipyro]

OP did you get the new oil filter housing and also did you take off the heat shield to see the oil filter housing


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[Smartdave]

I am curious about this too as I am about to replace mine in the coming days

 

[Smartdave]

OIL contamination in coolant reservoir cause and fix

Ok oil cooler changed



It's pretty simple. It's right behind the exhaust manifold.



Steps:



First remove heat shield. (Pita).







The loosen all exhaust manifold nuts (10mm)



Unplug O2 sensor



Remove 3 1/2 nuts holding exhaust pipe to cat. (Cat is part of exhaust manifold)



Remove two 3/8 head bolts holding cat to engine, underneath by flange.



Remove dipstick tube, it's an o ring that holds it in. Drain oil first before removing dip stick



Remove exhaust manifold. I also removed both engine hoist points (12mm head)



Once manifold is removed you can see the oil cooler. Remove 4 t-30 screws from the tubes, one at waterpump and one at thermostat housing.



Remove 5 3/8 bolts from cooler and slide off last tube leaving it in place.







You do not need to buy new tubes but... get all new seals from the dealer. Like $10 in total



Make sure rubber seals come off with cooler



Then clean everything



Then replace cooler







Re attach tube to water pump and thermostat housing



Install manifold.



Bolt up flange.



Re attach o2



Add coolant and oil





While everything was apart I cleaned all threads with a tap and die



Everything was put back together with anti seize



All in all I had zero frozen nuts or bolts and took about 2.5 hours to change everything over



Hope this helps





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[LizzyTheLez]

One day while driving I could smell the oil burning when i was stopped at a red light then i noticed that there was a little bit of smoke coming from under my hood, so i pulled over and looked at everything thinking that when I had an oil change before maybe they did not put the oil filter cap back on the correct way. took the oil filter cap off cleaned it up took the O ring off cleaned it off and put it back on wiped off as much oil as i could and kept going. car was doing good and then all of a sudden im at a light again the smell comes back and smoking under the hood. yet again i pull off to check the problem only to find the oil is only leaking from below what the oil filter sits. take it to the shop they put my car on the rack and can see the oil that is caked on so they clean it up fill the oil and tell me to come back in a few hours. go back for them to see the fresh oil that has leaked check the oil cooler housing and it is not cracked.
normally I do all my work my self but this time I'm having a shop do it for me. mechanic told me that it would be okay to just change all my gaskets that my housing is not cracked. going to spend $150 on labor (discounted due to wife working with oreillys) and $80 on gaskets all but the exhaust manifold was bought through dealership thats also with a discount.
crossing my fingers for this to be the fix!
original gasket price from dealer was $116 exhaust manifold gasket was $10
thank god for having a wife working at Oreillys

 

[muniorbust]

One day while driving I could smell the oil burning...
crossing my fingers for this to be the fix!

I realize it's been 7+ years. Any memory on what the problem actually was and the fix?

 

[RainingSonics]

I realize it's been 7+ years. Any memory on what the problem actually was and the fix?

Not that person but out of experience I can tell you:

Anything that leaks can cause smell/smoke as the engine runs hot.

Gaskets like engine cover gasket. They can also leak and go from too much oil or just leak when putting the vehicle up by jack and too much tilt and just leak down a bit. A not tight enough filter could also leak. Etc.

Hoses like coolant hoses. Check if any are mushy and bloated. If bloated and really mushy there then its near failure. Generally, hoses are quite tough but GM uses some soft-ish hoses that tend to go especially with the high heat running. If you smell a sweet-ish smell then you may have a coolant hose leak.

I found too that the fresh air intake also leaks over time. Its badly designed where the material they use to keep it from leaking deteriorates and weather then goes through into the engine area. This too could possibly cause smoke from water burning when engine gets really hot. Also, it slowly rusts and destroys everything in the engine area. I lifted it up and used higher quality outdoor caulk, put a thick bead of that along the whole thing, pushed it down into it and put it all back together and put the hood down to let it dry and let it sit that way for a day+. All good to go. I don't know if this was fixed or not on later models. It exists on 2012.

But, leaks are leaks. If something is leaking, find it. Do what you do from there. Can't do it for you. Something like engine cover, if you go to replace the gasket and don't torque wrench correctly and don't read service manual for torque values, etc, it can destroy the cover or engine depending on what you do, or even have air leak. Its not that it can't be done but the risk is yours.