Oil pressure and coolant guages pegged
07-17-2005, 01:16 AM
#1
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Car: 2009 Pontiac G8 GXP
Engine: LS3
Transmission: 6L80E
Axle/Gears: 3.27
Oil pressure and coolant guages pegged
As the topic states, these guages are constantly pegged.
I replaced the oil pressure sending unit and no change. There is no coolant temp sending unit on the head, just a plug...and the guage is still pegged.
Do I need to run a new wire for each of them? Are they pegged due to the sender wires being constantly grounded?
TIA.
I replaced the oil pressure sending unit and no change. There is no coolant temp sending unit on the head, just a plug...and the guage is still pegged.
Do I need to run a new wire for each of them? Are they pegged due to the sender wires being constantly grounded?
TIA.
07-17-2005, 09:56 AM
#2
There may be a problem with the wires to each guage being grounded. That should be easy enough to determine with a little measurement and diagnosis. It is also possible that the ignition switch has some contacts that are sticking in the BULB TEST position after cranking.
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