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Thread: oil pressure gauge acting funny
01-21-2011, 12:14 PM #1
oil pressure gauge acting funny
i looked down at my gauges yesterday while driving, oil pressure was at zero. as i was pulling over to shut her down, it jump back up to normal in an instant. so i kept driving, keeping close eye on the gauges. a couple mins later same thing again, down at zero, then jumped back up to normal. now im watching it almost closer than the road, on big bumps it would drop down, then come back up. seems like a bad connection somewhere. what you say? all sounds and seems normal while its happening. possibilties? gauge, connection, sending unit, is it possible for the pump to slip? let me know what you think, was planning to take it on the highway tommorow with my sled trailer, now im leary of doing that.
14 bolt posi rear, with 373s
33" wild countrys
tube steps, chrome kit, fenderflares,
chrome diff plate, window flares,
2-10"Alpine TypeE, Alpine 450watt V-Power.
01-21-2011, 02:42 PM #2
My '05 does that, on that unit it is a bad 'stepper motor' which drives the needle...I don't know if it affects your year truck...Still Loyal to GM after all these years...:shocked:
2006 Impala LT 3.5L
2005 Silverado WT small cab/longbed 4x4 4.3L V6
1999 Grand Am 3.4L in TX w/ our youngest
1993 GMC Jimmy 4.3L 4 door 4x4 'Ole Rusty' - 'SOLD'
1988 S-10 small cab/longbed HT3.4L Crate Engine
1970 Nova 250 I-6, factory 3 sp floor shifter.
1968 Chevelle 'Nomad' Wagon 250 I-6 w/ 3 on da' tree.
01-21-2011, 03:34 PM #3
my old 350 did that, replaced the oil sending unit, it kept doing it, and now it does that only when it gets low on pressure so check your dip stick!
2000 Chevy Silverado 2500 4x4
6.0L v8:great: 4L80E
2.5 in Daystar leveling keys
285/75/16s BFG ATs on HD wheels
Cab lights and tool box
01-21-2011, 04:56 PM #4
- Join Date
- Jan 2011
- Cincinnati, Ohio, United States
We just got a 97 Suburban with5.7 and the needle tends to bounce a lot, check the fluids and they are fine. was curious about that myself.Chuck
2000 K1500 Suburban w/5.3
1997 K1500 Suburban w/5.7
01-22-2011, 08:28 AM #5
check oil level first , then sender and gauge it self !!!!
1996 Suburban K3500 SLT DUALLY
1988 Camaro RS 383 stroker LT1
1992 32' Aero-tek Race Boat, 600 CI BBC
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01-25-2011, 03:12 PM #6
fixed it. 2.8L of oil.... thats embarrasing and scary. idk how i let it get that low. i guess i havent felt like checking it since it got cold out. im back to my old routine now of checking all fluids, and doing a quick visual under the hood whenever i fill up.
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