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Gm Tech (Cam)
Gm Tech (Cam), GMC Mechanic
Category: GMC
Satisfied Customers: 1667
Experience:  GM Grand Master Technician 2007. 14 year experience.
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2000 suburban 1500. 5.3 when I put it drive or reverse and

Customer Question

2000 suburban 1500. 5.3 when I put it drive or reverse and touch the gas pedal it dies,but runs great in park or neut. replaced fuel pump,fuel pres. reg. transmission,torque converter
ign. switch,harness. no change. is it a anti-theft issue? out of cash and throwing money at it. Greg
Submitted: 5 months ago.
Category: GMC
Expert:  cloe0626 replied 5 months ago.

have you checked for vacuum leaks

Customer: replied 5 months ago.
1st thing we did
Expert:  cloe0626 replied 5 months ago.

have you checked the mass air flow sensor

Customer: replied 5 months ago.
not sure about that as I am not the one doing the repair work.would that cause this to happen? maybe list for me the things that would cause it to die when in gear and run perfect in park and neutral and I can check for myself,thanks
Expert:  cloe0626 replied 5 months ago.

the tps throttle positioning sensor or the mass air flow sensor would cause the problems other then that vacuum lines and torque converter but you have already replaced that so i would check the to sensors