No oil pressure at idle
09-28-10, 08:13 PM
#1
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No oil pressure at idle
I took the FD out for a spin and noticed about 10 min after I started drivin that the oil pressure gauge was close to 0 when I pulled up to a stop sign. When I put the car into gear the pressure rises a little bit. And when I get into boost the oil pressure seems like it is fine... Am I going crazy or is there a problem?
09-28-10, 08:33 PM
#2
Common issue. Either a bad oil pressure sender...or more likely just a dirty contact at the sender. It's location just under the oil filter pedestal usually results in the contact being fouled. When your at idle, the voltage is weakest. It's a single wire spade connector. Remove it, clean it well, maybe even a little sandpaper and see what you get.
The other factor is thin oil. If it's been a while since the last change, you could have some fuel dilution and/or too thin of viscosity. Thicker oil, more pressure at idle. More pressure, more voltage. More voltage, better reading at idle.
If none of the above, it's probably time for a sender.
The other factor is thin oil. If it's been a while since the last change, you could have some fuel dilution and/or too thin of viscosity. Thicker oil, more pressure at idle. More pressure, more voltage. More voltage, better reading at idle.
If none of the above, it's probably time for a sender.
09-28-10, 08:37 PM
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Thanks for the quick response!!! I am asuming it is just a bad connection or faulty sender unit... Because I just took the car for a 400 mile trip yesterday and there was no problems
09-29-10, 03:56 AM
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Mine is doing the same thing as well. I read up on it a little bit. Seems like a fairly common problem. I have considered a mechanical gauge as well just for my own piece of mind. I have lost a motor due to oil pressure dropping. If I can spend 200$ and know that the window of opportunity for that to happen jsut got drastically decreased I will do it.
09-29-10, 10:48 AM
#7
Well you can go ahead and spend ~$125 for a new OEM sender or probably a similar amount on an aftermarket sender and gauge...or clean the contact first and see if that helps.
FWIW, I had the same issue. I now keep a little spray contact cleaner handy and hit that connection every so often...typically when I change oil. It's never come back.
And again, oil viscosity influences this at idle. As does the OEM wax pellet if you still have it. Our oil pumps are pretty reliable.
FWIW, I had the same issue. I now keep a little spray contact cleaner handy and hit that connection every so often...typically when I change oil. It's never come back.
And again, oil viscosity influences this at idle. As does the OEM wax pellet if you still have it. Our oil pumps are pretty reliable.
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