The Diesel Page Forums

2020 - TDP's 24th Anniversary
What's New | Feature Articles | Product Reviews | Member's Area | Free Forum Registration
Duramax 6600 Diesel Page | Advertiser's Section | Classified Ads | The Diesel Page - Publications

Go Back Forums > 2001 - Current Chevrolet & GMC 2500HD/3500 Light Trucks > 2500HD/3500 HD Trucks & Drivetrain

2500HD/3500 HD Trucks & Drivetrain Discussion Forum for the 2001 & newer 2500HD/3500 Trucks, Transmissions & Drivetrain

Thread Tools Display Modes
Old 10-31-2007, 07:05 AM
Mark Rinker's Avatar
Mark Rinker Mark Rinker is offline
Join Date: Jun 2003
Posts: 5,812
Default 'Jerky' oil pressure gauge

High mile 2002 has good oil pressure, but gauge no longer operates in smooth, sweeping motion - rather, it jumps in 30-40# increments in either direction when climbing or dropping.

Replace OPS, or gauge? If the gauge, can the cluster be pulled from a wreck and maintain correct mileage - or would you replace only that gauge?
2011 Chevrolet Tahoe 5.3L daily driver
  • Previous owner of two 1994 6.5L K3500s, '01, '02, and '05 6.6L K2500s, '04 C4500, '06 K3500 dually, '06 K3500 SRW, '09 K3500HD SRW, '05 Denali
  • Total GM diesel miles to date : ~950K
Reply With Quote
Old 10-31-2007, 08:43 AM
DmaxMaverick's Avatar
DmaxMaverick DmaxMaverick is offline
Join Date: Apr 2001
Location: CA
Posts: 12,633

Put an ohm meter on the OPS output and monitor it. If it is bad, the meter should show the wild swings. If it has a smooth transition, replace the cluster. If you happen upon a used cluster, you can replace just the gage, but you aren't supposed to be able to. It will take some creative skill. You can send the cluster to a repair place (Robyn, I think, mentioned one that does this) and have the cluster repaired. Also, it may be a resistor on the gage causing the problem like older models, but I haven't looked into it, so it may not. If so, it would be a simple fix, just replace the resistor.
1985 Blazer 6.2
2001 GMC 2500HD D/A
2014 Chevy Cruze Diesel - Fabulous car, no problems at all, but sold Nov. 2016 @ 55K miles.
Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -7. The time now is 03:46 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Copyright 1996-2020 by - All Rights Reserved