
Ask A Question - Help - Register - Login

high oil pressure, rough idle, engine shut off

Sent to Car Experts September 08, 2006 11:55 p.m.

my oil pressure was at 80psi (normal is 35-60) and it was idleing very hard and getting shaky in first and second gear. then when i would reach 3000 rpms the engine would shut off until i dipped back to around 2000 rpms. i drive a 2002 jeep wrangler, 4.0L 6cyl 5-speed

Optional Information:
2002 Jeep wrangler 4.0L 6cyl

Customer (name blocked for privacy)

Status: Closed Value: $15

Answer
September 09, 2006 11:35 p.m. (23 hours and 40 minutes later)

REPLIED

High oil pressure would be caused by a bad oil pressure relief valve, allowing oil to build up, this is most likely contributing to your other concerns.You are looking at doing some engine work and replacing the engine oil pump and relief valve.

__________________
Thank you for using Just Answer! Please ask for more detailed information.Please leave some positive feedback!
Accepts & bonuses are appreciated!

Gene -- Auto Service Technician -- 99% Positive Feedback on 499 Car Accepts
ASE Master w/L1 Advanced Engine Performance, Ford Trans Tech/SMT, Toyota, Mitsubishi,Hyundai Tech.

Reply to Gene
Sent September 10, 2006 10:56 a.m. (11 hours and 20 minutes later)

but once i shut it off and let it rest for 5 minutes i drove some more and the oil was fine but the symptoms were all still there

Customer (name blocked for privacy)

Answer
September 10, 2006 1:28 p.m. (2 hours and 32 minutes later)

ACCEPTED

The oil pickup tube/screen may be partially clogged and debris may be making its way past the filter screen and causing the oil pressure to go up nad blocking the relief valve.The other drvability symptoms may be directly related,but you should have a diagnostic check for trouble codes done to see if any other subsystem of the vehicle is indicating a fault.It is shutting the engine down and running rough, so the are a number of possibilites,you need to start with basic diagostic checks including an engine oil pressure test with a gauge to verify the oil pressure is actually going that high and not a problem with the gauge or sender itself.

__________________
Thank you for using Just Answer! Please ask for more detailed information.Please leave some positive feedback!
Accepts & bonuses are appreciated!

Gene -- Auto Service Technician -- 99% Positive Feedback on 499 Car Accepts
ASE Master w/L1 Advanced Engine Performance, Ford Trans Tech/SMT, Toyota, Mitsubishi,Hyundai Tech.

Think you can answer this question?
Login or Become an Expert

Related Answers:

	DISCLAIMER: You acknowledge that any information you may obtain from individuals you contact through use of the Just Answer service comes from those individuals, not from Just Answer!, and that Just Answer is not in any way responsible for any of the information these third parties may supply. The site and services are provided "as is" with no warranty and no representations are made regarding the qualification of an Expert. Responses and comments on Just Answer! are for general information and are not intended to substitute for informed professional advice (such as medical, legal, investment or accounting) and do not establish a professional-client relationship. Just Answer! is not intended or designed to address EMERGENCY QUESTIONS which should be directed immediately by telephone or in-person to qualified professionals. Please carefully read the Terms of Service.

Just Answer! > Car Repair > For Questions