Last post on Oct 03, 2013 at 5:48 PM
You are in the Chevrolet Silverado & GMC Sierra
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Chevrolet Silverado 2500, GMC Sierra 2500, Chevrolet Silverado 3500, GMC Sierra 3500, Engine, Diesel, Truck
#330 of 365 Silverado 6.6 diesel oil problems?
Aug 16, 2011 (6:16 am)
#331 of 365 Silverado 6.6 diesel oil problems?
Aug 16, 2011 (6:16 am)
Warning light says check oil level; gauge is buried clear to right past 80; oil level is fine, and truck runs perfect. Changed the oil pressure sending unit with no change. What next?
#332 of 365 trans limp mode or gear slip
Aug 29, 2011 (4:32 pm)
There have been reports of the trans slipping in the allisons between 4th and 5th gears while towing. I'm told it is clutch pressures. Do you have any info on this? Is there something in GM's computer system that can be reflashed or programmed to increase the clutch pressures? ATI, Bullydog, PPE, all make either parts to install in the trans or an electronic device to increase these pressures. Please let us all know.
#333 of 365 2007 Classic Diesel won't start
Sep 21, 2011 (9:19 am)
I have a 2007 Silverado 2500HD with 117k on it. About 2 weeks ago it threw a P0403 code indicating the EGR valve is having problems. I ordered a new EGR and this morning I started the truck put it in reverse and it died. It cranks, but won't start.
Would the EGR valve cause the truck to not start at all?
#334 of 365 Re: 2007 Classic Diesel won't start [taz_59]
Sep 21, 2011 (9:44 am)
Did you try to put the old EGR valve back in?
#335 of 365 Re: 2007 Classic Diesel won't start [folb]
Sep 21, 2011 (10:07 am)
Haven't gotten the new one yet...just wondering if it will stop it from starting.
#336 of 365 Re: 2007 Classic Diesel won't start [taz_59]
Sep 21, 2011 (2:59 pm)
Check your electric fuel pump relay under the hood. It or one of the other relays could be bad causing the electric fuel pump not to run.
#337 of 365 classic diesel wont start
Sep 21, 2011 (5:01 pm)
not sure what the fuse box looks like on the 07' classic, but my 05' has multiple fuse boxes and you'd be amazed at what is fused, at least I was. good luck. let us know what happens
#338 of 365 Re: 2007 Classic Diesel won't start [pearce369]
Sep 22, 2011 (11:12 am)
Didn't have time to work on the truck so I towed it to a friends shop...so far there is NO fuel flow...could be the relay or the pump if I had to make a guess...It has been slow in starting lately, so the pump may be the problem.
#339 of 365 Re: 2007 Classic Diesel won't start [taz_59]
Sep 22, 2011 (4:28 pm)
Good luck! Sounds like your on the right track.