Slight oil smell from engine area,after parking H3...But I see No oil leaks anywhere?

[ski.dive]

Slight oil smell from engine area...But I see No oil leaks?

 

[Traxx]

Thanks for the public service announcement.

 

[08H3]

Thanks for the public service announcement.

Ha!

If you do indeed smell oil, there is a leak somewhere. All I can say is look harder.

 

[JPaul]

This just in: water is wet, the sky is blue, and 10+ year old truck has oil smell in engine bay.

Yeah, the seals are getting old and oil is going to weep out of them, plus vapors from the heated oil are going to come out. You'd have to completely redo the seals on the engine (so, a rebuild), and on top of that pressure wash the heck out of the engine bay before putting the new motor back in to not have it smell of oil when it's been heated up after driving it.

If you don't have any drips or can see wet oil anywhere on the engine, it's probably fine.

 

[08H3]

I was too busy being a smart alec to actually remember to post something useful. I actually did have a similar situation once. Did not see any oil leaks, but did have a strong oil smell. It eneded up being the dipstick tube had broken where the upper mounting tab is (welded??) on. The tab had broken off completely from the tube and allowed the smell from the crankcase to escape, and you are correct, there was no evidence. The thing is a pain to replace, but it can be done. Hope this helps.

 

[alrock]

I don't have any oil smells with 183,000 miles and 13 years. If you've been driving it and never noticed it before, it's likely a new symptom.


Is it oil or antifreeze that you're smelling? You should get a flashlight and look for any wet spots under the hood and from the underside of the truck. Look carefully at both sides of the radiator.

Sent from my SM-N976V using Tapatalk

 

[Happy Hummer]

Check the hose under the resonator near back of engine. It could be dry rotted or fell off. Check the valve cover gasket area and the oil pan gasket area for damp splotches or discoloration. Check to make certain your axle seals (the front inner most) nearest the engine are not leaking and spraying on to bottom of engine.

 

[rascole]

Check the hose under the resonator near back of engine. It could be dry rotted or fell off. Check the valve cover gasket area and the oil pan gasket area for damp splotches or discoloration. Check to make certain your axle seals (the front inner most) nearest the engine are not leaking and spraying on to bottom of engine.

What the Happy one said. My vent hose was so bad it fell apart when I pulled it off to replace it.