99 S-10 Fuel problem?

Discussion in 'Chevy S10 Forum (GMC Sonoma)' started by 84K20, Dec 5, 2013.

  1. 84K20

    84K20 New Member

    Hi. I have a 99 S-10 with the anemic 2.2 and 5-spd. It's a 2WD with 160k miles. A month ago I changed the fuel filter just because it was due. As soon as the temp drops into the teens or colder, the darned thing bucks and sputters going down the road. Doesn't do it when it is relatively warm. It acts just like it is running out of fuel. The gas gauge wasn't working when I bought it so I changed the fuel pump hoping that would solve it. Gas gauge works now but still having issues. No check engine light. At idle and 50%-WOT or so it runs fine, but at light load it runs like crap. I dumped a can of Sea-Foam in the last time I gassed up with no results. Plug for the injector is okay. Any thought? Thanks!
  2. 84K20

    84K20 New Member

    Update: I changed the plugs and wires and the fuel pressure regulator; no luck. Runs like new when it's warm. When it's cold it bucks and misses so bad that the ZCD player skips. Any ideas?? I suppose I should get injectors next but I'm getting tired of throwing parts at this thing.
  3. Gramps43

    Gramps43 Member 1 Year

    Get your codes read, it's an OBD II system, and go from there.
  4. 84K20

    84K20 New Member

    Will it pick up a code with no check engine‚Äč light?
  5. Gramps43

    Gramps43 Member 1 Year

    Got me there I'm not at all familiar with that sys, hell I'm barely familiar with my sys. 8~)))))}.
  6. chrisclaar63

    chrisclaar63 New Member

    it will read codes as Pending. try cleaning the TB with carb cleaner. if problem persists then definitely injectors.

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