jcasey007
Well-Known Member
- Joined
- March 17, 2009
- Messages
- 523
- Reaction score
- 0
- City, State
- Stratford Upon Avon, Warwickshire
- Year, Model & Trim Level
- Jeep Commander 5.7L HEMI
The first start of the day or following a stop of over 5 hours, on startup I have started getting a delay in getting oil pressure of about 3 seconds, I know it doesn't sound long but it's not right!
Any other time the oil pressure shoots up instantly on cranking.(hot or cold)
Oil pressure generally is very good, it doesn't waver from a rock steady normal from idle through to 5000 rpm. Engine sounds sweet when running. She only uses 1/2 litre every 6000 miles (every oil change)
I've changed oil and filter (in previous cars the filter had a one way valve in it to stop oil draining from the galleries) this has made no difference. New filter was a FRAM
Any idea where the non return valve is located (if it has one) or any other causes.
cheers
Jim
Any other time the oil pressure shoots up instantly on cranking.(hot or cold)
Oil pressure generally is very good, it doesn't waver from a rock steady normal from idle through to 5000 rpm. Engine sounds sweet when running. She only uses 1/2 litre every 6000 miles (every oil change)
I've changed oil and filter (in previous cars the filter had a one way valve in it to stop oil draining from the galleries) this has made no difference. New filter was a FRAM
Any idea where the non return valve is located (if it has one) or any other causes.
cheers
Jim