2004 GMC Sierra OIL PRESSURE

2004 GMC SIERRA
80,000 MILES • 6 CYL • 2WD • AUTOMATIC
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ZYNSTAR
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Oil gauge is flunctuating . When driving gauge shows 40-45 , but when slowed down or at a stop , the gauge is 20-25 & sometimes 15-20 . Then when speeding up gauge goes back to 40-55 . If let off gas , goes down to 30 & back to 45 when back on gas . Oil sender unit has been replaced , but stiil acting the same . No noises from engine , & no real changes in how the motor runs . Seems to run ok . Would appreciate any info that might help . Thanks *
Jun 5, 2010 at 1:31 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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