STG
Oct 12, 2008, 08:38 AM
Hi-
I have a 2001 Jeep Cherokee Sport (4x2, 4.0 liter engine).
My oil pressure typically reads around 30 when on and idle and about 45 when under highway loads (the gauge goes from 0 to 80 with 40 as a midpoint). I took it out for a short drive this morning and it was idling at 40 and pushing up to around 60 when under a load... and hit as high as 65.
I took it home and shut it off in the driveway for a few minutes and then started it back up. The oil pressure gauge continued to read 40 when idle, but only hit 60 when I hit the gas and took the RPMs up to 3500.
The vehicle has been well-maintained, with oil changes every 3500 miles or so. It has 116,000 miles on it and has not seen harsh driving conditions (I live in San Antonio, Texas).
EDIT: Last oil change was approximately two weeks ago... done at one of those "Express Lube" type places... I've been going to this place for many years without issue.
Any ideas on what could be causing the oil pressure to spike?
I have a 2001 Jeep Cherokee Sport (4x2, 4.0 liter engine).
My oil pressure typically reads around 30 when on and idle and about 45 when under highway loads (the gauge goes from 0 to 80 with 40 as a midpoint). I took it out for a short drive this morning and it was idling at 40 and pushing up to around 60 when under a load... and hit as high as 65.
I took it home and shut it off in the driveway for a few minutes and then started it back up. The oil pressure gauge continued to read 40 when idle, but only hit 60 when I hit the gas and took the RPMs up to 3500.
The vehicle has been well-maintained, with oil changes every 3500 miles or so. It has 116,000 miles on it and has not seen harsh driving conditions (I live in San Antonio, Texas).
EDIT: Last oil change was approximately two weeks ago... done at one of those "Express Lube" type places... I've been going to this place for many years without issue.
Any ideas on what could be causing the oil pressure to spike?