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Dan
Dan, Technician
Category: Chevy
Satisfied Customers: 23762
Experience:  Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
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I have a 05 Chevy Colorado inline 5 and wen I turn or am on

Customer Question

Hi I have a 05 Chevy Colorado inline 5 and wen I turn or am on the brake the idle drops really let a
Me sometimes kills the engine I cleaned the throttle body and it worked for alil and the problem is back wat can I do
Submitted: 10 months ago.
Category: Chevy
Expert:  Dan replied 10 months ago.

Hello, my name is***** your check engine light on? Did you remove throttle body to clean it? thanks.

Customer: replied 10 months ago.
it on and I did remove the throttle body to clean it
Expert:  Dan replied 10 months ago.

Do you know what diagnostic code you are getting? Thanks.

Customer: replied 10 months ago.
If I remember right it was p0506
Expert:  Dan replied 10 months ago.

This code doesn't mean much, just that idle is too low. I'd start by replacing spark plugs too because any performance issue can cause low idle. Then I'd check for vacuum leaks even though I doubt there are any vacuum leaks because you would set lean codes. If no vacuum leaks are found and replacing spark plugs don't help I'd bring to dealer so they can update software in computer, there is a update for this problem. Let me know if you have more questions or if there is anything else I can do to help. Thanks.

Customer: replied 10 months ago.
Ok thanks I was thinking that
Expert:  Dan replied 10 months ago.

I also wanted to mention looking at the brake booster if it stalls when hitting brakes. So if you are in park and vehicle is idling ok but then stalls when hitting brakes make sure to check out brake booster for leaks. Let me know how it goes, thanks.

Customer: replied 10 months ago.
How much does it cost for the program upgrade if it takes that
Expert:  Dan replied 10 months ago.

That would cost around $80 at the dealership.

Customer: replied 10 months ago.
Ok thanks will check that out and get back to u
Expert:  Dan replied 10 months ago.

Sounds good, I'll talk to you then. Thanks again and have a great day!

Customer: replied 10 months ago.
In the brake boaster am I jus looking for leaking brake fluid
Expert:  Dan replied 10 months ago.

No, it would be a vacuum leak. You would want to listen while someone else pumps brakes to see if you hear any noise. You can also connect a vacuum pump to see if it holds pressure.

Customer: replied 10 months ago.
Ok
Expert:  Dan replied 10 months ago.

Let me know how it goes, thanks.