What's normal RPM's for idling?

[91RS]

What year is your truck? If you have a 99-03 there is a PCM calibration update for low idle that needs to be put in along with cleaning the throttle body. If you have an 04-06 you need to clean your throttle body.

 

[YukonJ]

What year is your truck? If you have a 99-03 there is a PCM calibration update for low idle that needs to be put in along with cleaning the throttle body. If you have an 04-06 you need to clean your throttle body.

I have an 01...is the PCM calibration something the dealer needs to do?

Thanks

 

[91RS]

I have an 01...is the PCM calibration something the dealer needs to do?

Thanks

Yes. Depending on the dealer and how prices are in your area should be between $50 and $100. Make sure to clean the throttle body VERY well right before you have the calibration installed.

 

[PUGLIA]

Just clean your TB and do the Seafoam trreatment through the PCV valve. It will clean your top end and solve your problem. If you need instructions PM me your e-mail and I will send a PDF.