Chevy Silverado and GMC Sierra Forum banner

Oil Pressue Gauge Not Working

25K views 7 replies 4 participants last post by  DFWclusterRepair 
#1 ·
Hello all,

New here and hope to find some info about my 2006 GMC Sierra. I noticed this morning that my oil gauge is all the way to the right, showing 80lbs pressure. It was working a couple of days ago, but now it will only go over to the far right. Any suggestions on how to test the sensor? Also, where is it located on the engine? I can't seem to find it any where. I know it is not like the old model vehicles, since it probably goes through the computer system. Any chance there may be something up with the computer? I have received no engine light or codes. Thanks in advance for any and all suggestions/advise.

JD
 
#2 ·
My guess would be a bad oil pressure sensor. I believe it is on the top rear of the engine near the drivers side cylinder head. I think you can do like the old ones and ground the lead or pull it off the sensor to see if the gauge changes, but you may want to get a factory service manual to find out for sure how to check it.
 
#3 ·
The oil pressure gauge in my 2003 did the same thing about 6 months ago. I just figured it was the sensor since everything else worked on my cluster. It is infact where ASTE25 says it is. Not real fun to get to. I scraped up my wrist on the fuel line clamps trying to get back to it. Also it takes a special socket; I think I got it from NAPA. Once the new sensor was installed it's worked perfectly ever since.
 
#4 ·
Hey, thanks for the update. As bad as it sounds, regarding position, I really hope it is the sensor and not the stepper motor. I know the stepper motor sounds easy to do, but I have real bad luck with electronics. Going to get a new sensor today and try it out. Thanks again for the info.

JD
 
#6 ·
It was definately the oil pressure sensor. I replaced it this weekend and it was not that bad. AFter a little prep work, it was simply a unscrew the old and screw in the new. As I mentioned on another topic, you definately need to remove the small plastic piece sticking out near the fuel line. That made the already small opening a little more accessable. The special socket is a plus and autozone has it for $10. Overall cost was $49.24

JD
 
#8 ·
Oil sensor issues are common on 03-07 GMT8XX
if maxed out or at 0 when running its normally the sensor, to verify do a cluster sweep test with a good scanner and if it passes replace sensor, also sometimes the issue is the signal wire and not the sensor.
 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top