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Recent content by mirving171

  1. M

    Engine Vibration Question

    I have a 2001 pontiac grand prix gt with a 3.8L N/A motor w/ 120,xxx miles. A FWI, glass pack res, 180* T-stat, flowmaster mufflers. I recently changed the PCV valve, spark plugs and wires(factor AC Delcos), changed the oil, ran seafoam and Chevron fuel system cleaner. Changed the fuel filter...
  2. M

    Rec 90 Fuel

    Does anyone use Rec-90 or recreational fuel aka ethanol free gas in their GP? If so do you notice any difference in performance in comparison to 10% ethanol gas?
  3. M

    Car vibration when stopped

    I have a 2001 pontiac grand prix gt NA 3.8 w/ a WAI and flowmaster mufflers the car has 115,000+ miles on it and I have been feeling a strong vibration when the car is stopped at a light, I have changed the fuel filter, air filter(w/ a WAI), spark plugs, spark plug wire, sea foamed it, used...
  4. M

    Fans come on as soon as the car starts

    I have a 2001 pontiac grand prix 3.8 n/a only mod is a WAI i got off ebay, the one day out of the blue starting running very cold about 160-175 consistently before I would be running at around 195-210, I did out some hyper lube in it but I dont think this would cause the fans to always run as...
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