Engine Shuts Down, Avalanche 2500

ShawnRedman

I have a 2002 Avalanche 2500. I can be going down the freeway and it shuts down...I also can be mostly between 100-2000 rpms in traffic same thing, or when I let off gas in slow traffic , rolling to a stop, and sitting at a light it justs chokes out...I have had fuel system worked on..crank sensor...eveything...I am wondering if it's the throttle body...It is very dangerous driving...Does this sound familiar..I've hac\d it to three dealers looking at electrical and two GM machanics...Running out of ideas and patience...It started more than 2 years ago and has progressively gotten worse.Help...

Mr_Shiftright

Sometimes the only way to solve intermittent problems like this is to have the test equipment hooked up at the moment of failure--that way the technician can "freeze" the data, as well as stream it, and see what's going on with data from the various modules and sensors.

ShawnRedman

He's caught it in that mode. I believe we have now replaced all the sensors. Everytime it is able to be read it reads something else at fault. thank you, i appreciate your response