Question about Cars & Trucks
The oil pressure switch leaks when engine RPM goes above 2500. Checked oil pressure with gauge and found that RPMs over 2500 oil pressure is at 80 psi. I think yhe oil pressure relief is sticking but not sure.
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Posted on Jan 02, 2017
Sounds to me like it could be a Mass Airflow Sensor issue. Or Air fuel mixture problem. Is the harness to the MAF and Trottle control sensors hooked up right? These are just simple solutions that may work. Check all of your fuses as well. One could be blown causeing you DLC not to operate. DLC =DATA LINK CONNECTOR. Find the fuse... read the code.... solve them problem! GOOD LUCK! hope this helps.
Posted on Dec 28, 2008
SOURCE: OIL PRESSURE RELIEF VALVE
If cleaning the engine does not work, replace the oil press. sending unit. These senders on Jeeps have had a history of problems where they will work one day and not the next day.
Posted on Jan 27, 2009
That is probably a defective oil pressure gauge or a broken oil pressure sender, it reads 80 psi just because that is the maximum value allowed.
Pressure can be verified by reading it with a gauge tool.
If you really have pressure over 70 psi when engine is running then start replacing the oil filter, and check that the oil lines from pump are not obstructed, if there is nothing in there then replace oil pump.
If instead the gauge reads 80 with engine off, that is a defective pressure gauge.
Posted on Feb 25, 2009
chances are your sending unit is not bad. These dashes have had alot of problems with stepper motors failing in the instrument cluster. does it go to zero when key is off? is it erratic? changes where it sits when running and when off? These are all problems within the cluster itself. It is not cheap to take this to the dealer. THey will want to replace the cluster. these clusters can be repaired for half the cost if you know where to go. Not sure yet what the rules are on here but i can repair these for about 325 verses over 600 from dealer and then reproggramming costs! One other note. Chevy has a recall on these! call you local dealer and ask what the criteria is for the recall. You may be able to get it repaired for free if you meet the time frame and mileage requirements.
Posted on Feb 01, 2010
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