Oil Pressure Guage reads "0"

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bobgto65
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Oil Pressure Guage reads "0"

Post by bobgto65 »

My 04 GXP has a reading of "0" on the oil pressure gauge. Would this more likely be a bad sending unit or stepper motor in the gauge cluster? Vehicle runs fine and only has 63,000 miles.
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harofreak00
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Re: Oil Pressure Guage reads "0"

Post by harofreak00 »

Does the gauge do its sweep on startup? If it does, then its the sending unit.
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CMNTMXR57
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Re: Oil Pressure Guage reads "0"

Post by CMNTMXR57 »

If it were the oil pressure sending unit OR anything in that circuit and it was shorted out or faulty, it would read maximum/infinite resistance, which in turn would peg your oil pressure gauge to maximum NOT 0.

So I'm gonna say it's NOT the sending unit...
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bobgto65
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Re: Oil Pressure Guage reads "0"

Post by bobgto65 »

The gauge sweeps normally at start and then goes to zero and stays there. So I'm gonna say its not the gauge?
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2004 Bonneville GXP 62,000 miles purchased 04/13
2009 G8 GXP PBM, M6 9580 miles, no mods, sold 08/15
2009 G8 GT SBM 36,000 miles, modded 430 whp
2002 Bonneville SSEi 203,200 miles (sold 3/2014)
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nos4blood70
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Re: Oil Pressure Guage reads "0"

Post by nos4blood70 »

Sending unit for sure.
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bobc997615
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Re: Oil Pressure Guage reads "0"

Post by bobc997615 »

I think that it is a "fun" replacement. When changing out the front motor/tranny mount, the oil pressure sensor is easily accessible with the subframe dropped and the mount & bracket removed.
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Bvill_GXP
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Re: Oil Pressure Guage reads "0"

Post by Bvill_GXP »

mine did the exact same.. dealership replaced the whole cluster as they said it was bad... ijs
2005 Bonneville GXP Fully Loaded
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