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Old 08-10-2011, 11:29 AM   #6 (permalink)
Kodak
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Join Date: Feb 2011
Location: USA
Posts: 346

Canyon - '07 GMC Canyon 2wd regular cab
90 day: 24.95 mpg (US)
Thanks: 41
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Hey Hatch. It's definitely running more smoothly after the cleaning, although the hesitation is still there a bit. It's not much, and if I really baby the clutch it's even better. Maybe I've been lazy with the clutch and 1st (having a lot of torque) is where I felt it most.

But the cleaning made it feel better overall. You're right, the throttle body was pretty dirty despite the low mileage of less just under 40,000, probably due to the in town driving environment. Funny thing is that it looked really clean from the side I could see when it was mounted. However, after taking it off I discovered quite the little carbon build-up. I was bored, so I got pretty picky and gave it a very thorough cleaning.

Would you consider injector cleaning a hard job for a beginner? I'd probably give it a shot.

Oh, an no, the check engine light was not on. For that reason, I did not suspect a misfire or anything more serious. Thanks for your question.
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