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SUVs GMC Yukon 2005 GMC Yukon - Oil Pressure Drops to Zero
2005 GMC Yukon - Oil Pressure Drops to Zero
4 messages,
Last post on Mar 20, 2009 at 10:18 AM
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GMC Yukon, GMC Yukon Denali, Engine, Oil, SUV
- #1 of 4
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2005 GMC Yukon - Oil Pressure Drops to Zero
by quickdraw03
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Sep 22, 2008 (2:58 pm)
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I have a 2005 Yukon Denali with about 78k miles. I've had my gauge cluster replaced. My oil pressure gauge drops to zero and then comes back up.
Specifically, I have to drive about 70 mph (I don't regularly do that) and let of the gas. After I've been driving for some time, the oil pressure will go down until I hit the gas again. It happened first about a year ago during the summer on a long trip. It happened again about two months ago at the beach. This past week it happened a lot.
Am I looking at a bad oil pump? Could it just be the sensor?
Thanks.
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- #2 of 4
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Re: 2005 GMC Yukon - Oil Pressure Drops to Zero [quickdraw03]
by cudaguy
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Oct 04, 2008 (5:29 am)
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Replying to: quickdraw03 (Sep 22, 2008 2:58 pm)
Hey Don't know much about the yukon but.. you can check these things. Oil Level if its low it will drop do to lack of volume to make the pressure during deceleration. If the Oil filter is dirty or oil has not been recently changes. the filter could be blocked especially cheap filters. The oil pressure sending unit and wiring make sure the wire is attached tight and its not rubbing anything anywhere. Other than that it get alot more expensive and complicated
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- #3 of 4
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Re: 2005 GMC Yukon - Oil Pressure Drops to Zero [quickdraw03]
by meskoms
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Mar 20, 2009 (9:27 am)
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Replying to: quickdraw03 (Sep 22, 2008 2:58 pm)
Just wondering what you found out on this. I have a 2000 Denali w/ 125,000 and driving into work this AM i saw the check gauges light as it was turning off when I was getting on the highway. I noticed it again accelerating after getting off the highway. The second time I saw the oil pressure drop from a "normal" range down to 0 and immediately go back to a normal range. I'm due for an oil change but levels look OK. I guess I'll try and get it checked out tomorrow but thought I would ask how your situation turned out.
thanks
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- #4 of 4
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Re: 2005 GMC Yukon - Oil Pressure Drops to Zero [meskoms]
by quickdraw03
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Mar 20, 2009 (10:18 am)
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Replying to: meskoms (Mar 20, 2009 9:27 am)
It was a bad sensor. It cost about $200 to $300 to fix. Mostly testing and labor. If the oil pressure was really 0, the engine would have been toast.
Best of luck.
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