Thread: Tune up questions 97 grand prix se 3.8

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  1. #1 Tune up questions 97 grand prix se 3.8 
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    I bought the lady a 97 se and today i replaced the plugs , wires, and air filter, also changed the oil. It still feels like it struggles alittle bit.
    im wondering if thier are any tune up experts here who can help me get it running as well as it can.
    please help with knowledge.
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  2. #2 Re: Tune up questions 97 grand prix se 3.8 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    You could try cleaning the MAF sensor and throttle body.

    I'd throw a can of seafoam in the gas tank aswell too, it can help clean the injectors.

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  3. #3 Re: Tune up questions 97 grand prix se 3.8 
    Killa Bee Scottydoggs's Avatar
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    what plugs did you use? im hoping iridium as thats what your supposed to use.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  4. #4 Re: Tune up questions 97 grand prix se 3.8 
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    yes , iridium plugs wer used
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  5. #5 Re: Tune up questions 97 grand prix se 3.8 
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    ok, so I pulled the plug wires one at a time while car was running. 1st for had spark. the last two were dead. took the coils off and removed the ignition module under them. took the ignition module to autozone to get tested. it failed. spent $150.00 on a new 1 and replaced. car now runs like a new one with all cylinders firing. I got lucky and didn't listen to the guys at pepboys.
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  6. #6 Re: Tune up questions 97 grand prix se 3.8 
    Killa Bee Scottydoggs's Avatar
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    good find.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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