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| 06-07.5 LBZ & LLY Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect |
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11-27-2012, 07:15 AM
| eBay Motors #1 (permalink) |
| DuramaxForum n00b Join Date: Oct 2012
Posts: 10
|  My oil pressure is way to high My oil pressure guage is at 90psi at idle and at 115psi while driving. This is well above what was normal yesterday. When i shut the truck off the guage goes back to 0 psi. I do not want to take a chance of blowing a seal or ruining the engine so can i get a few suggestions other than taking it to the dealership. Thanks. Ps. I changed the oil this morning and nothing changed.  |
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11-27-2012, 07:17 AM
| eBay Motors #2 (permalink) |
| Needs a S.A.S.   Join Date: Feb 2009 Location: Buckhannon,West Virginia
Posts: 4,682
| Use the search, alot of LB7's are known for this. Not heard of the newer ones doing it. What yr. is your truck?
__________________ Reger Black on Black 05' Silverado 2500 HD 4X4 CC/SB, LBY7, LT. 8580 lbs Built motor/Trans and tuned by Blackout Performance Engine- LB7 block, keyed crank and cam, LBZ rods, cut LB7 pistons, ATI damper, MA pushrods, MA motor mounts, LML man., new guts in heads, blocked, re-routed, Bills custom intake Trans- PPE stage V Suncoast 1057 converter Exhaust- 3" D.E. dp, 4" MBRP, 5" RBP tip Suspension- Leveling kit buried, 3 rear springs added, Moto Metal 956's, 35's Steering- Cognito braces, Cognito sway bar links, P/S cooler, straight centerlink, Rare parts tie rods Interior- Wilson cell amp, Galaxy 73V, Boomer 400 linear, scanner, bluetooth 2011 30' Puma KDBSS |
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11-27-2012, 07:39 AM
| eBay Motors #3 (permalink) |
| DuramaxForum n00b Join Date: Oct 2012
Posts: 10
| The truck is an 06 silverado 3500 with the LBZ. |
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11-27-2012, 01:22 PM
| eBay Motors #4 (permalink) |
| DuramaxForum n00b Join Date: Oct 2012
Posts: 10
| I found something on an oil pressure relief valve may be bad. Has anyone ever had to replace one? And how hard was it to replace any info on this would be greatly appreciated. |
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11-27-2012, 01:28 PM
| eBay Motors #5 (permalink) |
| DuramaxForum Veteran  Join Date: Nov 2012 Location: in the woods of michigan
Posts: 1,188
| my 03 lb7 did that, replaced gauge and oil press sending unit and cured all the problems. 115 lbs is alot i think, IMO it cant be reading right..
__________________ couldnt pass hazing to be a "pup bro"  03 lb7 ccsb 4x4-6" bds- 20"mkw's- p195/65/14 intercos- auto meter boost/pyro/trans gauges- traction bars- 5'' DE straight pipe- PPE BIV- AD II 200 lift pump- edge insight CTS- spectre CAI- 45% over injectors- LMM cp3 & FPR -EFI live dsp5 flashed by tony burkhard with danville tunes- thanks to Brent @ Lincoln Diesel |
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11-27-2012, 02:44 PM
| eBay Motors #6 (permalink) | |
| Needs a S.A.S. Join Date: Feb 2009 Location: Buckhannon,West Virginia
Posts: 4,682
| Quote:
__________________ Reger Black on Black 05' Silverado 2500 HD 4X4 CC/SB, LBY7, LT. 8580 lbs Built motor/Trans and tuned by Blackout Performance Engine- LB7 block, keyed crank and cam, LBZ rods, cut LB7 pistons, ATI damper, MA pushrods, MA motor mounts, LML man., new guts in heads, blocked, re-routed, Bills custom intake Trans- PPE stage V Suncoast 1057 converter Exhaust- 3" D.E. dp, 4" MBRP, 5" RBP tip Suspension- Leveling kit buried, 3 rear springs added, Moto Metal 956's, 35's Steering- Cognito braces, Cognito sway bar links, P/S cooler, straight centerlink, Rare parts tie rods Interior- Wilson cell amp, Galaxy 73V, Boomer 400 linear, scanner, bluetooth 2011 30' Puma KDBSS | |
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11-27-2012, 03:15 PM
| eBay Motors #7 (permalink) |
| Junior Member  Join Date: Feb 2011 Location: Mississippi Gulf Coast
Posts: 206
 | Hard for any motor to give 90 psi at Idle...suspect sending unit/gage malfunction
__________________ 2006 GMC 2500HD SLT CCSB 4WD, K&N, Autocal DSP5,RDS Toolbox/Transfer Tank, Nicktane Cat Filter, PCV Reroute, Toyo 285 AT II's, FASS 150 HD, ADP Sump, EGR Block, leveled. |
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11-28-2012, 04:54 AM
| eBay Motors #8 (permalink) |
| DuramaxForum n00b Join Date: Oct 2012
Posts: 10
| I am going to try the sending unit first. I may Even hook up a manual pressure gauge to see what It says. I just changed the oil 20 miles ago. That was the first thing I did. Thanks for all your help. I will report back when i find the problem. Thanks again. |
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11-28-2012, 09:22 AM
| eBay Motors #9 (permalink) |
| DuramaxForum Veteran Join Date: Nov 2012 Location: in the woods of michigan
Posts: 1,188
| ive had to change my sending unit 2 times, first time i lost oil press too, 2nd time because it spiked like yur describing..
__________________ couldnt pass hazing to be a "pup bro" 03 lb7 ccsb 4x4-6" bds- 20"mkw's- p195/65/14 intercos- auto meter boost/pyro/trans gauges- traction bars- 5'' DE straight pipe- PPE BIV- AD II 200 lift pump- edge insight CTS- spectre CAI- 45% over injectors- LMM cp3 & FPR -EFI live dsp5 flashed by tony burkhard with danville tunes- thanks to Brent @ Lincoln Diesel |
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11-28-2012, 11:16 AM
| eBay Motors #10 (permalink) |
| DuramaxForum n00b Join Date: Oct 2012
Posts: 10
| Hey boostnlb7 when yours spiked did the gauge Go back to 0 psi when u shut the truck off? |
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