erratic or surging at idle, please help!

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erratic or surging at idle, please help!

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Chevrolet Forum >> Chevy Trucks, Vans & SUV's >> Silverado >> erratic or surging at idle, please help!

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erratic or surging at idle, please help! - 4/15/2008 10:00:31 AM

barrypyoung

Posts: 1
Joined: 4/15/2008
Status: offline

I have an 03 2500 with the 6.0 engine. most times it will idle ok, but other times it will surge while idling. Sometimes it will stall when it is surging if i am moving slowly and take my foot off the gas pedal. I've heard the problem was with the MAS or ICV. If anyone knows what it is please let me know, i don't have money to start replacing everything on the throttle body and it seems to be getting worse and more frequent. Thanks in advance

Barry

Post #: 1

RE: erratic or surging at idle, please help! - 4/15/2008 10:46:29 AM

northey87

Posts: 874
Joined: 10/17/2007
Status: offline

Welcome to the forum!!! Someone here should be able to help, just hang in there.

_____________________________

''''95 1500 Silverado, 350, flowmaster Force II exhuast, S&B CAI.

(in reply to barrypyoung)

Post #: 2

RE: erratic or surging at idle, please help! - 4/16/2008 4:46:32 AM

jmack91z28

Posts: 164
Joined: 2/27/2008
Status: offline

I would say it is the Idle Air Control Valve too, to be sure you can check the resistance across the valve, take it out and see if it is bad dirty and needs to be cleaned. It could hopefully be something simple like that. Go to the auto parts store and find one of those books that has your year model truck in it and look up the sensors. It will tell you what the correct resistance in ohms should be of every sensor so you can compare it.

_____________________________

1994 K2500 454 4L80E 14bolt 10.5" w/ 4.10's

(in reply to northey87)

Post #: 3