oil leak still after rear main seal replacement
#1
oil leak still after rear main seal replacement
late last year I had a stall converter swapped out done by my mechanic and he had told me that the rear main seal was leaking and I had him replace it. fast forward a few weeks and while pulling out of my garage I noticed fresh oil spots on the ground (layed the area with cardboard to prevent staining the concrete floor). I tried looking for where the leak was coming from but wiping down the oil pan and trans pan from the grime and oil splatter makes it difficult to narrow down after driving it a few more times and putting it on jackstands again.
IF the rear main seal is fixed, and I had already replaced my oil pressure sending unit, is there any other place(s) that would cause a slow oil leak?
IF the rear main seal is fixed, and I had already replaced my oil pressure sending unit, is there any other place(s) that would cause a slow oil leak?
#2
late last year I had a stall converter swapped out done by my mechanic and he had told me that the rear main seal was leaking and I had him replace it. fast forward a few weeks and while pulling out of my garage I noticed fresh oil spots on the ground (layed the area with cardboard to prevent staining the concrete floor). I tried looking for where the leak was coming from but wiping down the oil pan and trans pan from the grime and oil splatter makes it difficult to narrow down after driving it a few more times and putting it on jackstands again.
IF the rear main seal is fixed, and I had already replaced my oil pressure sending unit, is there any other place(s) that would cause a slow oil leak?
IF the rear main seal is fixed, and I had already replaced my oil pressure sending unit, is there any other place(s) that would cause a slow oil leak?
Last edited by matt02ws.6; 01-17-2019 at 08:21 AM.
#6
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iTrader: (6)
My car is currently leaking as well near the oil filter so have been researching. It could also be the oil bypass adapter near the filter or the oil pan leaking. I am replacing my entire rear main cover which includes the rear main seal and gasket for the cover as well as my oil pan gasket. Thinking about changing out to an LS6 valley cover now since I have an 02 and won't have to clearance the block along with a new seal there too.
#7
gotcha. when I replaced my OPSU I checked around the valley cover lid and didn't see any leaks around there as well as around the OPSU. it was dry.
I would assume if the rear cover gasket was leaking my mechanic would of suggested changing that gasket instead of the rear main seal itself.
I had came across some older posts about the oil bypass adapter leaking but I haven't done an in-depth search on what's all involved.
I would assume if the rear cover gasket was leaking my mechanic would of suggested changing that gasket instead of the rear main seal itself.
I had came across some older posts about the oil bypass adapter leaking but I haven't done an in-depth search on what's all involved.
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#9
TECH Resident
gotcha. when I replaced my OPSU I checked around the valley cover lid and didn't see any leaks around there as well as around the OPSU. it was dry.
I would assume if the rear cover gasket was leaking my mechanic would of suggested changing that gasket instead of the rear main seal itself.
I had came across some older posts about the oil bypass adapter leaking but I haven't done an in-depth search on what's all involved.
I would assume if the rear cover gasket was leaking my mechanic would of suggested changing that gasket instead of the rear main seal itself.
I had came across some older posts about the oil bypass adapter leaking but I haven't done an in-depth search on what's all involved.
#11
TECH Resident
#12
TECH Addict
iTrader: (17)
When I replaced my rear main seal I bought the entire setup, he did the oil pan gasket at the same time, no more issues.
https://www.ebay.com/itm/Chevy-GMC-B...!-1:rk:15:pf:0
https://www.ebay.com/itm/Chevy-GMC-B...!-1:rk:15:pf:0
#13
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iTrader: (6)
When I replaced my rear main seal I bought the entire setup, he did the oil pan gasket at the same time, no more issues.
https://www.ebay.com/itm/Chevy-GMC-B...!-1:rk:15:pf:0
https://www.ebay.com/itm/Chevy-GMC-B...!-1:rk:15:pf:0