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  1. C

    01 Denali won't stay running, no codes

    I had a friend scan it, he said it didn't return a code. I'll try to clean the MAF and TB to see if anything changes.
  2. C

    01 Denali won't stay running, no codes

    Hello all, I have an '01 Denali with 240k that was used as a daily driver/commuter. It recently took a dive and is hard to start, when it does it will not stay running without holding the gas. I have no codes when scanned, just the "service engine" light that has been on a while. I'm wondering...
  3. C

    2001 Denali erratic idle

    I'm thinking it may be the fuel pump on mine too. I haven't done anything because my truck was sitting as I was away on business. I notice that my truck bogged in the same area on my route. I was pulling a hill and I thought it was going to cut off. Seems like it couldn't get enough fuel. Looks...
  4. C

    2001 Denali erratic idle

    Had Autozone check, no codes. The guy that worked there seems to think it may be the TPS?
  5. C

    2001 Denali erratic idle

    Service engine light did not come on. There is and auto parts store within a safe distance that might be able to tell me if there is anything showing though.
  6. C

    2001 Denali erratic idle

    Hi guys I have a 2001 Denali with approx 220k on th odometer. Today while driving the idle would fluctuate between 1500-3000rpm while I was driving on the expressway. When stope at a light the car would idle at 500-700rpm. The trans also had and issue upshifting until around 3000rpm. Trans was...

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