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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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2004 Impala 3.8 code K engine starts up great but soon after

Customer Question

2004 Impala 3.8 code K engine starts up great but soon after starting there's a loud vacuum sound from inside throttle body car acts like it not getting gas press on pedal engine dies sounds like too much air & not enough gas, like the old carburetor engines. keep pressing pedal engine still tries to stall, sometimes does when loud vacuum sound from inside throttle body stops car runs great. Once car is turned off sits for awhile same thing starts over again
Submitted: 3 months ago.
Category: Chevy
Expert:  Tool Hut replied 3 months ago.

Hi, My Name is ***** ***** for posting your question to just answer. I am a independent contractor for just answer. ASE Certified Master Auto Technician with 20 years experience. 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 resolution.There will probably be some equipment needed for a proper diagnosis. If you are not comfortable with this or do not have any test equipment please let me know ASAP. I also give you all of the information you may need in good faith expecting a positive rating. I am not compensated for my time until you leave a positive rating. Your rating should be based on the service you received.

do you have the air tube off the throttle body?