2001 GMC Sierra Stalling at Idle

2001 GMC SIERRA
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GREGGESTEY
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My 2001 GMC Sierra (about 130k miles) is intermittently (becoming more frequent) stalling at idle. Generally if it starts ok at first I will not have any problem on that trip but if it starts and stalls then I will have to ride the gas pedal to keep the rpms up. I'm thinking fuel pump but would like a second opinion before I start shotgunning the problem. Thanks!

Gregg
Nov 28, 2006 at 5:01 AM
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THIS IS MIKE
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Hi Greg,
Some things to check first would be fuel pressure regultor or vacuum leaks. Inspect the air intake boot for cracks. One more thing to look at is your isc (Idle Speed Control) motor. If those all check out ok, it does sound like the fuel pump could be on the way out.
Mike
Nov 28, 2006 at 10:45 AM
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GREGGESTEY
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Thank you very much Mike!
Nov 28, 2006 at 10:40 PM
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THIS IS MIKE
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you're welcome, I hope it helps. Have a great day
Mike
Dec 1, 2006 at 4:28 AM
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GREGGESTEY
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A follow-up. I took it in as I also had a window issue and wanted a couple recalls taken care of. Bottom line - Lose battery cable. They tightend the cable and spent all day trying to get it to do the stall/threatend stall thing and couldn't make it happen. I've had it back about a week now with many starts and I haven't had even a hint of the problem yet.
Dec 11, 2006 at 8:14 AM
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THIS IS MIKE
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Battery cables definetly need to be tight. :) I am glad to hear that it is working again.
Dec 17, 2006 at 5:39 AM
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Suggested Repair

Tighten the loose battery cable. If stalling returns, check the fuel pressure regulator, vacuum leaks, air intake boot cracks, and the idle speed control motor before replacing the fuel pump.

Conversation Summary

A 2001 GMC Sierra was intermittently stalling at idle and sometimes needed the accelerator to stay running. The expert suggested checking the fuel pressure regulator, vacuum leaks, intake boot, idle speed control motor, and possibly the fuel pump. A shop later found a loose battery cable; after it was tightened, the stalling did not return.

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