Thread: Oil leak on my Chevy Venture with 3.4

My wife's Venture has an oil leak and was wondering if you guys could help me tracking it down. I will try to comment the pictures the best I can.


This obviously is the top of the motor. The pass side dog bone is not straight as you can see. i don't know if this will casue problems.


This pic shows oil and road grime on my rad and fans.


This pics shows the pully side of the motor where i think the leak is coming from.


This pic shows where the oli is being flung against the hood.


This pics is under the pass side of van. I'm not sure what this is, but you can see the oil covered in road grime.


This pic is a better angle of the picture above this one.


Here you can see the oil coating the underneath.


This pic is taken from the pass side wheel well. It's hard to see, but most everything is covered in oil and grime.

Let me know what you think. I don't think it is leaking alot of oil, but I would like to know where it is coming from. My GP is also leaking on this side and I am guessing it is the same place.

Will the crooked dog bone hurt anything? The engine is a reman that was replaced before I bought the van. i bought the van because it has the 3 series engine and I know that there is a lot of knowledge around this forum.

Originally Posted by BillBoost37

I think the best way to find that leak since everything on the passenger side is soaked, will be to clean it down and keep an eye on it.

I have never power washed an engine bay before. Other than alternator, battery and fuse block what will I have to cover so that it won't get wet? What cleaner do you recommend?

We had a motor mount replaced a week after we bought it becasue the van had a terrible vibration. I knew it was the mount. I seen the mount after the mechanic changed it and it was pretty bad. He said the oil really cause the mount to wear fast. I am affraid this will keep happening.

I may power wash it this week. What cleaner works best? and do i need to cover so no electric parts get damaged?

Thanks Bill. I will post some pics of the clean bay once it is clean.

I was thinking that too, but I am not going to tear apart a van with 200,000 miles on it. I will clean and keep and eye on how bad it is leaking. if it is leaking a lot, maybe I will have my mechanic tear it apart. There is not much space under the hood to work. My GP is leaking in a similar location. I am hoping to pick up a cheap 04 GTP this weekend and sell the 03 or clean up the GTP and sell it for profit. In any case, I will clean it and snap a few pics of it.

It was not now that I think about it. I changed it the day I took the pics (Sunday)

What on the belt side could be leaking?

i don't know the shop that put the motor in, but I did call them and it sounded like a poor place. I'm guessing the original owner went the cheap route. I probably won't have time for a few days, but I will check it out. Thanks.