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Thread: oil pressure gauge acting up
01-13-2013, 12:15 PM #1
oil pressure gauge acting up
hey guys.. in my 2006 gmc seirra my oil pressure gauge just pegged to 80 one day last week. the truck runs fine,no check engine lights or any other warnings... just today it started sweeping from 0 to 80 randomly. like i said before, no warnings, lights or performance issues.. i know its just an electrical issue, but my question is where?? the stepper motor? the pressure switch?? wiring between the two?? ANY input is appreciated!!
thanks!!2006 gmc sierra 1500 z71
flowmaster 40 series cat-back system
S&B cold air intake
1970 chevy c10 350/290 crate engine
dual flowmasters to dual outlet in front of the rear tires
HAD a 99 Harley Sporster 1200
after market paint job
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01-13-2013, 01:26 PM #2
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Most likely the stepper motor. Usually a bad sender just gives weird readings, not make it bounce around.
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01-13-2013, 09:06 PM #3
Thats kinda what i was thinkin... the motor is soldered on right??
01-13-2013, 09:11 PM #4
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On the NBS and NNBS I think so, but not sure because I've never taken apart one of those clusters...
01-14-2013, 08:04 AM #5
Yes, they are soldered in. They can be bought for around $12 online. There are plenty of videos on youtube showing how to do it.
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01-14-2013, 11:00 AM #6
just to make sure, check your oil level."i dont think you got the picture. i got a beautiful picture. this baby happens to have an extra turn of speed, which is the only thing i care about. you dont understnad what happens do you? they make cars. they make 'em exactly the same way. one or two of 'em turn out to be something special. nobody knows why. i know why. i may be kiddin' myself, but i think i can make somethin' out of that sad little bucket of bolts." ~ Tennessee Steinmetz
01-14-2013, 01:27 PM #7
A new sending unit for the oil gauge is usually cheap but just cause I have delt with these gauges so much I would say its the stepper as well, but also if one is going the rest aren't far behind99 K1500 Suburban LT "THE BEAST"
Hypertech III, K&N, true dual
01-14-2013, 06:39 PM #8
thanks for all your help so farguys!! so upon driving home from work tonight, the oil pressure needle was goin all over the place.. the scary (at least for me) thing is the "low oil pressure" message came across the info center.. is there any chance that the gauge going to zero is causing that mesage to come across, or are they seperate systems??
ps.. oil level was 1/2 in the hash marks, which should be fine, but i added 1/2 qt just to be safe, no knocking,overheating due to lack of lubrication.. nothing phiscally wrong just wacky indications...
Last edited by black98noma; 01-14-2013 at 07:02 PM.
01-16-2013, 12:22 PM #9
so bc i dont have time to mess around with this ne more, its off to the stealership...
01-18-2013, 07:26 PM #10
so it turned out to be the oil pressure sensor. thanks for all your help guys!!!
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