Question about 2000 Jeep Grand Cherokee
I have a 2000 Jeep grand Cherokee-My oil pressure gauge read low and the check engine light came on-I was over a few miles on my oil change so got it changed. Will this solve my problem or do I need to get the oil pump changed and the oil pan replaced and valves done like the person who changed my oil claimed? Since the oil change I have only driven the car about a mile so I do not know if my problem is solved and hate to drive the car if it is not.
Low oil pressure is generally caused by internal engine bearing wear, not a "bad" oil pump... Pumps become "bad" when debris from a failed component gets into it, causing damage. (exception being pressure regulator spring/plunger assembly becoming clogged with gunk in engines that do not get proper maintenance; likely not your case)
Were there any tapping noises coming from engine when pressure was low? If not, The most common problem is the pressure sending unit, sending bad info to the warning light. If passage going to it or internal passage is gunked up, this problem usually disappears when oil is changed. sometimes the sender just goes bad, in which case, change it.
To get a proper diagnosis on your problem, have someone put a mechanical oil pressure gauge on it. This will read the actual oil pressure and will tell you a lot about the condition of your engine!
I have never seen a valve job that corrected any oil pressure problem. I mistrust anyone who would even think that!!!
Mlinimum low pressure at idle is 15 psi Max is about 60psi running (higher can explode an oil filter) A reading of 15psi indicates the beginning of a problem. although considered "safe" it is not good.
Posted on Jan 03, 2009
a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Mar 02, 2012 | 1996 Jeep Grand Cherokee
Feb 04, 2011 | 2001 Jeep Grand Cherokee
Feb 04, 2011 | 2000 Jeep Grand Cherokee
Jan 29, 2011 | 2001 Jeep Grand Cherokee
Mar 22, 2010 | 1996 Jeep Grand Cherokee
Feb 16, 2010 | 2000 Jeep Grand Cherokee
Jan 04, 2010 | 2000 Jeep Grand Cherokee
Apr 17, 2009 | 2002 Jeep Grand Cherokee
Feb 25, 2009 | 2002 Jeep Grand Cherokee
500 people viewed this question
Usually answered in minutes!