engine starts fine . abs light stays on. truck stalls when foot is put to brake to shift into gear. this problem started with the abs light randomly coming on while driving indicateing to me it was about to stall. sometimes light would go off and all was well.
Year : 2003
Make : Chevrolet
Model : express
Engine : 6.0 l
i have taken it in three times to repair facilities including dealer. no one found a problem.they have fixed random items ignition switch,wire harness(service generated poss. problem.)laying at some cross member? fuel filter,fuel pressure test,seafoam additive to gasoline
This is a tough one from where I'm sitting.But I know where I would start. What ABS code(s) do you have?
none no engine codes
The ABS light has to be associated with something..... when the scan tool is attached, is there no ABS codes, or is there no ABS communication?
no abs codes. when this started happening I thought it was fuel pump because it always happened when tank was less than 1/4 then happened when was less than1/2 and so on I kept increasing fuel level we let truck fall to. now at full it does it .I just had fuel pressure checked at dealer last week. Now I can't even put truck in gear because when I push brake pedal it stalls. also cannot start in neutral with foot on brake it just cranks/then shift to park no foot on brake abs light still on vehicle starts, idles fine but sputters when I give it gas and sometimes sputters and backfires from intake carb area i believe. Note I am giving all info. I can remember some may not be pertinent.
My first instinct, Dan, is that you have a bad engine ground. I would be looking this over for all of the engine grounds. There is one in particular at the RR of the engine, on the back of the RS cylinder head. You'll have to remove the doghouse to check it, obviously.Let me list all of the grounds, because that's certainly where I would start.G102 is fuel pump relay, ignition system, park/neutral switch. G103 is PCM ground. G102 and G103 are both located at the back of the engine, as shown here:G300 is ABS system ground. It's locatedG104, 105, 106 are battery grounds, located as shown here:Also, G106 is located right next to the battery. And check the battery cable as well, take it off and make sure it's not full of battery acid. Both cables, for that matter, check them both. I have also seen loose positive cable connections at the starter and at the junction box, so follow those cables and make sure they're securely attached.I think this is a generic power/ground fault, or at least, that's where I'd start looking.
I am going to log out for the night, but by all means, hit me up tomorrow if you have any more questions or need clarification.-Jerry
really a bad ground? I know your not with the vehicle but this truck only has 70k miles on it. sounds like checking grounds would certainly take enough time for me to forget about the fee. this problem has been around for some time 1 1/2 years getting worse I would have assumed being inthree times to different service places that this was ruled out. correct me if i'm wrong but a bad ground would not be as intermittant and allow me to drive the vehicle up until now without getting stuck broken down at some point. what about a sensor that controls abs and ignition??? or some other hardware, A GROUND???
Relist: Answer quality.THE ANSWER WAS TO CHECK ALL THE GROUNDS. ARE YOU SERIOUS THIS APPEARS TO BE AN ESCAPE ANSWER.. I AM VERY DISAPPOINTED. WHEN YOU DO NOT KNOW THE ANSWER JUST SAY SO DO NOT USE A BROAD TRANSPARENT STATEMENT LIKE THIS TO GET PAID.
Hello, I'm Cam. Please include all the details about your issue so I can accurately advise you. I cannot see your vehicle so please be detailed.Does it matter if you shift to drive or reverse? Is it the action of putting your foot on the brake or the action of moving the shfiter?
I'm sorry you're disappointed, Dan. You're not following my logic, though.This is where we START. We start there because it's foolish to assume that someone else would have already checked that. If I had a nickel for every time another mechanic skipped over the simple, obvious things........And, as it happens, broken engine grounds are common on this application. In my mind, I'm not done with your vehicle, but if you're done working with me, just say so and I'll opt out.