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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), GMC Mechanic
Category: GM
Satisfied Customers: 5783
Experience:  GM Grand Master Technician 2007. 14 years experience.
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Just changed throttle body because of rough idle. New one

Customer Question

Just changed throttle body because of rough idle. New one installed and it stills almost dies at low speeds and stops
JA: Tell me a bit more about what's going on so he can help you best.
Customer: Car stalls or almost stalls at stop lights or low speed.
JA: Are you hoping to fix this yourself?
Customer: I thought that I had it fixed by changing the throttle body
JA: Is there anything else the GM Mechanic should be aware of about your GM?
Customer: No
JA: Our top GM Mechanic is ready to take your case. Just pay the $5 fully refundable deposit and I'll fill the GM Mechanic in on everything we've discussed. You can go back and forth with the GM Mechanic until you're 100% satisfied. We guarantee it.
Submitted: 8 months ago.
Category: GM
Expert:  Jerry Newton replied 8 months ago.

What year, make, and model is your GM?

A throttle body doesn't really have the ability to cause a "rough idle." What diagnostic steps led you to replacing the throttle body?