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Old 03-18-2007, 07:17 PM   #1
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Default High oil pressure reading/03 GMC Yukon XL

Noticed the last few days my oil pressure gauge has gone from a reading of 50-60 to maxed out at 80. Don't notice anything different in the way it runs/performs, the gauge just reads 80 which is as high as it goes. I am thinking electrical malfunction as the oil levels are fine and I don't hear anything unusual. Can't seem to locate a fuse for that individual gauge, so I am at a loss. Just wanted to see if any of you fellow GM guys have seen anything similar. Thanks.....M
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Old 03-18-2007, 07:20 PM   #2
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Default Re: High oil pressure reading/03 GMC Yukon XL

Oil sending unit perhaps. Last time I had one go was on my '95 Astro van. Only takes a few minutes to replace.
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Old 03-18-2007, 07:33 PM   #3
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Default Re: High oil pressure reading/03 GMC Yukon XL

It could be the first sign of a spun bearing- get it checked out!
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Old 03-18-2007, 09:40 PM   #4
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Default Re: High oil pressure reading/03 GMC Yukon XL

I had a GMC sending unit go bad also was doing the same thing as yours
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Old 03-19-2007, 01:17 PM   #5
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Default Re: High oil pressure reading/03 GMC Yukon XL

Yeah my '04 tahoe has the same problem, but will randomly work normal on a good day
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Old 03-19-2007, 01:39 PM   #6
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Default Re: High oil pressure reading/03 GMC Yukon XL

Sending unit. If it had a spun bearing you'd know it by now.
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Old 03-21-2007, 08:03 PM   #7
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Default Re: High oil pressure reading/03 GMC Yukon XL

agree sounds like the sending unit is grounding out
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Old 03-21-2007, 09:01 PM   #8
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Default Re: High oil pressure reading/03 GMC Yukon XL

Thanks Everyone..$56 bucks for a new oil pressure sensor and all is well...MO
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