2004 GMC Envoy XL 5.3, 4wd
I just picked this Envoy up, runs perfect, clean, 170k miles. Looks to have been leaking a very long time.
I am having a heck of a time chasing down this leak and at the end of my rope. Thought I would throw it out to you all, see if there may be something that I am overlooking.
I am getting a good bit of oil each night, or anywhere I park for a few hours time. It is a sizable puddle, well more than just a couple drops here or there. The entire oil pan all the way to the bellhousing is covered in oil. I have degreased the pan and surrounding area as best as possible in order to isolate the leak. The best I can tell it is the oil pan. The oil pressure sending unit has been replaced, I was hoping that would cure the leak. Nope. I also did valve cover gaskets and grommets.
After cleaning it up and letting it run I could see oil dribbling out from what appears to be the oil pan gasket (above the bolts in the picture). I was able to get a wrench on most of the oil pan bolts, all were snug on this side (driver side), but I could not reach the bolt that is located above the differential. I am wondering if that one is loose causing the leak.
On the passenger side, I did find one bolt that was literally FINGER TIGHT. I snugged it back down and so far, no oil from the passenger side.
Any ideas? I looked up how to pull the oil pan and damn!!! Looks to be a full day job. I really do not want to get into it that deep as it will likely cause more problems and from what I have heard, these oil pan gaskets are well made, riveted into the pan and rarely leak.
Thank you all in advance!
I just picked this Envoy up, runs perfect, clean, 170k miles. Looks to have been leaking a very long time.
I am having a heck of a time chasing down this leak and at the end of my rope. Thought I would throw it out to you all, see if there may be something that I am overlooking.
I am getting a good bit of oil each night, or anywhere I park for a few hours time. It is a sizable puddle, well more than just a couple drops here or there. The entire oil pan all the way to the bellhousing is covered in oil. I have degreased the pan and surrounding area as best as possible in order to isolate the leak. The best I can tell it is the oil pan. The oil pressure sending unit has been replaced, I was hoping that would cure the leak. Nope. I also did valve cover gaskets and grommets.
After cleaning it up and letting it run I could see oil dribbling out from what appears to be the oil pan gasket (above the bolts in the picture). I was able to get a wrench on most of the oil pan bolts, all were snug on this side (driver side), but I could not reach the bolt that is located above the differential. I am wondering if that one is loose causing the leak.
On the passenger side, I did find one bolt that was literally FINGER TIGHT. I snugged it back down and so far, no oil from the passenger side.
Any ideas? I looked up how to pull the oil pan and damn!!! Looks to be a full day job. I really do not want to get into it that deep as it will likely cause more problems and from what I have heard, these oil pan gaskets are well made, riveted into the pan and rarely leak.
Thank you all in advance!