SOURCE: how do you get the oil cooler line loose at the
there should be 1 nut and stud holding the lines to the housing. I would suggest replacing the upper o-ring for the oil filter adapter at the same time. The oil cooler hoses are also prone to leak, if so, you want to replace evreything while you are there.
SOURCE: where is the oil filter located on a 1991 gmc
look under the hood in the left fender behind the head light if its not there it will be on driver side under the truck by left exhaust manifold.
SOURCE: I have a oil leak around my oil filter adapter on my 87 gmc v3500
sounds like the adaptor gasket fell out of place when reinstalling. also make sure the adaptor is not cracked.
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