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Comments
4 weeks ago at 20 MPH it simply shut down, not a cough, sputter, skip it just quit.
Prior to the shut down i did notice a slightly longer cranking time before it fired up. Typically 2 -3 seconds extended to maybe twice that before it fired up. It ran OK once started
Had a guy plug in a Snap on computer, OOPS no codes battery dead lost the RAM in the computer.
under the hood we go look for the big 3 fuel, spark and air. Got em all?
Three different spark testers say the plugs are getting juice.
Good visual spark on external plug test
Fuel test ga reports 62 PSI at the fuel rail test tap.
I am guessing air is a given??????
Noid light looks like Christmas on all 8 injector ports, signal confirmed
We tried new plugs, new cap, new rotor, ignition control module tested OK 2 times.
Throttle body sensor reports the proper voltage @ .88 VDC and rising voltage on acceleration of the throttle.
Tried starting fluid in the throttle body not even a cough.
Tried one half ounce of raw fuel down the hatch not a cough, sputter hop skip or jump?????
Completely confused anyone have a suggestion short of replacing the VCM.
thanks
copdaddy
One suggestion they made was to replace the crank shaft sensor. As soon as I put the new sensor in, it wouldn't start, so I know the new sensor didn't fix it. I put the old sensor back in and returned the new one because it was about $70. It still has the problem, when it happens the only thing I have found that helps it is to splash a little gas in down the throttle body and it fires right away.
I would really appreciate any thoughts?
Found out the hard way. $100. dollars later. You have to replace the fuel injectors, but they dont come separate they come as a assembly of 8 injectors hooked to a module. You have to remove the upper intake to get to them. But i would remove the upper and lower intake if you go this far. Because of a another gm problem. The lower intake gasket has plastic seals at the ends for the water passages. These will crack and fail in time. Replace the lower intake gasket with one that uses metal at the water passages. Trust me.
let me know how yours goes.
Thanks
Thanks,
Can you please email me your complete contact information including a good number to reach you, VIN, current mileage, and involved dealer? I would like to assist you with this.
Christina
GM Customer Service
Taking your vehicle to a dealer is always a good step when trying to diagnosis your vehicle. Please feel free to email me if you have any questions, comments, or concerns.
Christina
GM Customer Service
I am having the same problem with my 08 Silverado. It wont start. This has happened to me twice now and it is currently at the dealer, but they cant find anything wrong with it . There is a problem and I want it fixed. I have only had this truck two weeks. The dealer I bought it from is going to pay to have it fixed, but they have to be able to find the problem first. The first time it happened, the engine code said to Service the Theft Deterrent System. The second time it happened, no code would come up. I have also been told from others that they beleive it has something to do with the OnStar system. Can you help me !!! Please !!!
Tricia, GM Customer Service.
Thank you for replying. The Chevy dealer finally got the truck to not start and tracked it down to the starter. The starter armature has a bad spot in the comm, and everytime it would happen to stop in that exact spot it would not start. So, they replaced the starter and said that it is fixed. I hope it is. I dont want this happening again. For now I am good to go, but if it happens again, I will contact you with the info you need.
Again, Thanks
Bigred46
I have a 2008 Silverado I purchased new with a similar no start situation now 3 times.
Each time the truck is running fine and turned off only to find out I cannot restart the truck within the nect hour. The battery, lights, remote etc all work flawlessly and the voltage checks out fine before and during starting attempts. The 2nd time this happened I called the warrantee number and the truck was flatbedded to the Chevy dealer on a Saturday morning. After calling in all day Monday I finally just git a ride to the dealer at 5PM to learn they were just getting to it then. Since it started for them they returned it to me saying they had no error codes and it was fine and there was nothing else they could do.
I must say I am a bit concerned that this has happened 3 times and that there appears to be no correction for the problem - it is not fun to be stranded and not know when it will happen next. I called service a couple of times now asking what to do next but have no answers at this time. Since I will be reaching the end of my warrantee period in a few months it is even more concerning.
All of this and my contact information is traceable through the Vin ....
2GCEK13J681319168 - 2008 Chevy , Silverado , Crew, 5.3 , LTZ
Last call to the warantee center was on 3/27/2011 - please help.
Please email me with your complete contact information including a good number to reach you, VIN, current mileage, and involved dealer. I look forward to your response.
Christina
GM Customer Service
I apologize I do not see your contact information connected to your VIN in our system. Can you please email me this information, including your Edmunds user name? I would like to look into this further. Have a great weekend!
Christina
GM Customer Service
We ask that you avoid posting traceable information like VINs to prevent unauthorized or malicious use - vehicle identity theft is just as real as human identity theft.
kcram - Pickups/Wagons Host
I have a 98 Chevy 1500 that has had this problem for years now and i've never been correct it. I'm curious if the new starter has fixed your problem??
Thanks!
KCram - Thank you for your attention as well, I was not aware of that.
Ron
Please feel free to get a second opion from another dealership. Please keep me posted on any information you may find out, and we can go from there.
Thank you,
Caron, GM Customer Service
Yes, so far replacing the starter has worked. It has been two weeks since I had it fixed and no problems so far!!
Regards,
I would be happy to set up a case with GM Customer Assistance. To get the case set up I will need the VIN, current mileage, full name, address and best contact number for our records sent to me in an email.
Thank you,
Caron, GM Customer Service