You didn't say what year your Jimmy is, but my '89 has a drop-down door under the front bumper and that's where my oil filter is located. (took me a while to find it). Maybe that'll help.
Where is the oil filter on a 1999 gmc jimmy
How to remove a bad radiator from a 1992 GMC jimmy 4x44-door,v6 engine?....Thank you :)
There is an access in the cover below the radiator for the filter.
on the driver's side, behind the headlight.
PH3980 if I recall
Remove blower motor 97 GMC jimmy
Left side along the frame rail.
My 94 jimmy's filter is right beside air filter on driver's side fender well don't know if that's normal or not but i would check there
being that fuel pump is in the gas tank I would remove the fuel line at the filter then turn on ignition being that fuel pump is in the gas tank I would remove the fuel line at the filter then turn on ignition
Its on the inside drivers frame rail.
Look for an access panel beneath the rad.
The oil filter is a screw on type. It is mounted on the side of the engine close to the front.