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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15181
Experience:  GM Grand Master Technician 2007. 14 years experience.
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Got a 94 Chevy truck v 6 vortec engine. Mechanic of 50 years

Customer Question

got a 94 Chevy truck v 6 vortec engine. Mechanic of 50 years cant figure out what problem is. Dead spot at part throttle, a backfire, gutless . Full throttle has full power and runs great.Have replaced fuel pump, filter,injectors,sensors,ox sensor,computer,fuel pump relay,distributor, etc. any ideas?
Submitted: 1 year ago.
Category: Chevy
Customer: replied 1 year ago.
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Expert:  Tool Hut replied 1 year ago.

Hi, My Name is***** have over 20 years experience repairing vehicles. I am a ASE Certified Master Auto Technician. I am confident we can resolve your problem together.Please remember I don't know your skill level. I can't see, smell, hear, or touch the vehicle. It may take a few back and forth replies to get to a satisfactory resoloution.I also try to give all of the information you may need expecting a positive rating. If there is any reason I cannot get a positive rating please let me know.

Do you have a vacuum gauge? Fuel pressure gauge?

Have you placed fuel pressure gauge and attempted pinching return line and verify regulator is working?