Attempted theft chevy avalanche 2005 now not starting

SOURCE: 2005 chevy avalanche

the timing is factory set no need to adjust

SOURCE: anti-theft/security light on dash doesn't flash on 2005 avalanche

Several GM products, including the Chevrolet Impala and Malibu, the Oldsmobile Alero, the Pontiac Grand Prix, and Saturn Ion, have issues with the Security light coming on. This is many times an indication of a failing Body Control Module (BCM). Initially, the Security light will come on then go off, progressing to a constant on light, before the car will refuse to start. Other symptoms may include erratic action of electronics, a clicking sound coming from the glove box, and the air conditioning failing to blow cold air. I recommend a shop that specializes in the electronic systems of vehicles to diagnosis and make the necessary repairs. They should keep the car until they replicate the symptoms described. A new BCM from GM should cost about $230; plan on another $200 for them to diagnose the problem, replace the unit, and program the new unit. The dealers quote between $700 and $1,100 for the same repair. My experience and the experiences I have read on the internet, indicate the new BCM should last only about a year.

SOURCE: will stock running boards model number 12490924

The best place for that info is to call a GM dealerships parts department they can tell you in a matter of seconds.

SOURCE: 2005 chevy avalanche turns over

friend had same issue with his truck ended up being fuel regulator had a pin hole in it bleeding down pressure. sorry about this crapy photo but only one i can find. part is just down from #5 (round midway on rail)

Thomas Perkins

• 15088 Answers
• Posted on Dec 02, 2012

SOURCE: 2005 chevy avalanche turn the key on and the temp guage cycles but doesn't register temp while truck is running.

Could be your coolant temperature sensor is faulty,here's a link on how to replace.