Oil leak kicking my rear

[Blh1960]

getting a drip about every 10 seconds at idle. What I have done. Changed valve covers, oil pressure sender, timing cover, and crank seal. It is dripping off the starter. Can someone show me a pic of the bell housing inspection plate. I suspect the, oil pan and rear main. I have not done the intake manifold as well. Is the intake likely with lots of miles? Help please!

 

[M1Gunner]

getting a drip about every 10 seconds at idle. What I have done. Changed valve covers, oil pressure sender, timing cover, and crank seal. It is dripping off the starter. Can someone show me a pic of the bell housing inspection plate. I suspect the, oil pan and rear main. I have not done the intake manifold as well. Is the intake likely with lots of miles? Help please!

If you got that much oil coming from your intake manifold then you've got bigger fish to fry my friend.

The inspection plate is the bigger of the two discs. You can pop it out a flat head. Hopefully you see no oil.

You can always spray everything down real good with some brake cleaner, start the truck then use an inspection mirror and flashlight to try and locate the origin of your leak.

 

[Blh1960]

Thanks so much. I seen those plates but wanted to make sure. I know that I should clean it up and look for the source. Sometimes easier said then done. I just want to see the most likely oil leak issues with these vehicles. I am given the Yukon a rest today. The ball game is on.

 

[Bigbertha78]

Pull the starter and look above it at the crankshaft sensor, it could be leaking from there also.

 

[Blh1960]

I should pull the starter.

 

[MrBalll]

As far as the inspection plate; can it just as easily be put back in without being loose? I've read tons of posts saying it's not needed, but my OCD wouldn't allow that. Just curious if it pops right back in place.

@M1Gunner

 

[M1Gunner]

As far as the inspection plate; can it just as easily be put back in without being loose? I've read tons of posts saying it's not needed, but my OCD wouldn't allow that. Just curious if it pops right back in place.

@M1Gunner

Yes, it'll pop back in. There are three prongs that hold it in place. If it's a little loose after you reinstall it then pop it back off and bend the prongs out a little to take up any slack once it's back in.

The way I see it is it was put there for a reason. If it wasn't needed then GM would have saved a bunch of $$$ by not having one. It keeps debri out. I surely don't want dirt and rocks getting in there flung around especially when my starter engages.

 

[treehan77]

Watching to see if you find your leak, mine drips of the starter bolt also. No oil visible through inspection cover. Haven't pulled starter

 

[ivin74]

Its the rear main seal, it always is. Its a common leak on this suvs

 

[treehan77]

How common is the rest main seal leaking where you see zero oil wetness after removing the inspection plate

 

[Blh1960]

I have not touched it since Saturday. I changed the valve cover gaskets Saturday and the oil sending unit. It was acting flakey anyway. It seems my leak is worse. Makes me want to retrace my work. Is it possible that the oil pressure has increase a bit since I sealed part of the problem up causing the main leak to be worse? Also it only happens when it runs. If it was a rear main would it not leak just sitting?

 

[brasil]

just a idea...check your OILFILTER ! Last saturday I changed my oil...with filter of course. ANd while I wanted to unscrew the filter with a special chain.... ups !! the filter wasn´t tight and there was
some oil dripping .. When I think about that today.. Had a lot of luck !
Greetings Juergen

 

[Blh1960]

Looked at it this weekend. Went to the car wash and power washed. Pulled the inspection plate and it does not seem to be on the flex plate or coming from there. Dripping off my starter, and near the oil filter on the other side. It seems to be coming from the top of the motor. Tried to pull the starter and check the crankshaft seal but could not get the starter out. What is the secret? Lots of things in the way. The leak takes a while at idle but is still there. Intake manifold?

 

[treehan77]

Mine only leaks on the starter side. Supposedly there's a crankshaft (or is it camshaft?) position sensor right above starter, so it could be that. Yours Could be intake, Valve covers since you say it leaks both sides. Or cps and oil cooler/block off plate

 

[Blh1960]

It does not appear to leak out of the oil cooler/blockoff. I could not get my starter out of way enough to really check the crankshaft sensor, but I don't think it is that. I am leaning toward intake manifold or camshaft sensor since I already changed the oil pressure sensor. I tried the inspection mirror on the back side of the motor but it sits so far back it is a challenge to see with my old eyes. I read somewhere you can take off the right front wheel and the fender cover and see better. Ever hear of this?

 

[M1Gunner]

It does not appear to leak out of the oil cooler/blockoff. I could not get my starter out of way enough to really check the crankshaft sensor, but I don't think it is that. I am leaning toward intake manifold or camshaft sensor since I already changed the oil pressure sensor. I tried the inspection mirror on the back side of the motor but it sits so far back it is a challenge to see with my old eyes. I read somewhere you can take off the right front wheel and the fender cover and see better. Ever hear of this?

I'm gonna have to say it's not your intake manifold. Your cam sensor is back there though. Taking your RF tire off and removing the wheel well liner will gain you some pretty good clearance for sure to see back there.