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Thread: Oil pressure gauge stuck at 80
02-03-2014, 12:27 PM #1
Oil pressure gauge stuck at 80
My dash gauge is stuck at 80 with key in run position but engine not running. Also with engine running. Where is the sending unit located for this. 2006 5.3l. Is that the likely problem. About 110K2006 Silverado 1500 5.3L ecsb Z71,afe pro s dry air filter, color matched tailgate handle and bezel,color matched front bow tie, led interior illumination, 5000K HID lows, Black powder coated wheels, Blacked out body side moldings, Rough Country 2.5" level/lift kit, Magnaflow muffler
02-03-2014, 04:34 PM #2
The Oil Sending Unit is located at the back of the Engine, on the Driverside, behind the Intake Manifold. It is Best to use a Sending Unit Socket which can be purchased at Most Auto Parts Outlets/Stores.
Remove the plastic Vortec Intake Cover over the Top of the Engine to gain better access to the Oil Sending Unit.
View from Rear of Engine
5.3 l 3.73 l G80
BLACK BEAR CUSTOM TUNE
SNUGTOP l COLORMATCH l KATZKIN
RayVoy liked this post02-03-2014, 05:52 PM #3
02-03-2014, 06:05 PM #4In the Picture, the Stepper Motor's are Circled in Red, there's one Stepper Motor for each Gauge,
The link below is a Write-up with step by step Instructions and with Pictures, on Removing the Stepper Motor's and Installing New Ones, check the link out, and it will give you a clearer picture on Removing and Installing the Stepper Motor's, and where you can buy them etc....
02-03-2014, 06:20 PM #5
That's great info. Only thing I didn't see was whether or not battery should be disconnected prior to unplugging the cluster. I am not looking forward to that project. Is there anyway to diagnose if the sending unit or stepper is the cause. prior to dis-assembly.
02-03-2014, 06:33 PM #6
Last edited by 99'HEARTBEAT; 06-06-2014 at 11:45 AM.
02-03-2014, 06:58 PM #7
99'HEARTBEAT thanked for this post02-03-2014, 07:01 PM #8Ray
'09 Avalanche LTZ - Black
'05 Envoy XL (sold)
02-03-2014, 07:21 PM #9
02-04-2014, 06:48 PM #10
The more I type and think about my previous suggestion, removing the wire will probably remove the voltage just like turning off the key. You probably won't be any farther ahead trying my suggestion.
You probably need a scope, or a very good DVM to read the voltage changes from the sending unit.
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