The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

4x4toy · 11-03-2010, 04:06 PM

If the gauge pegs with "ignition on and engine off" either the sending unit is bad or you have an open wire to the sending unit. Hard to see on some engines, behind the distributor. If it pegs while engine is running, check the oil pressure with a hand held gauge. If oil pressure is normal most likely the sending unit bad. Hope this helps.

11-03-2010, 04:06 PM	#5
4x4toy Registered User Join Date: Jan 2009 Location: Southern Md Posts: 228	Re: oil gauge pegging out If the gauge pegs with "ignition on and engine off" either the sending unit is bad or you have an open wire to the sending unit. Hard to see on some engines, behind the distributor. If it pegs while engine is running, check the oil pressure with a hand held gauge. If oil pressure is normal most likely the sending unit bad. Hope this helps. __________________ 04 Yukon XL 2500 w/ Quadrasteer 61 Chevy C60, 261 inline six 86 Chevy C20 2wd, Banks 6.2 05 GMC Sierra 2500hd Duramax