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Changed the plugs, still skipping.

This is a discussion on Changed the plugs, still skipping. within the LT1 forums, part of the Vehicle Specific category; Expensive!...

  1. #21
    Giant Dicks Car Club Zapper2003's Avatar
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    2005 Ram
    1978 Firebird

    Expensive!

  2. #22
    LS1 chosen son lemons12's Avatar
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    Quote Originally Posted by Zapper2003 View Post
    Expensive!
    you could do that for less than 80ish bucks.. and less than 10 minutes work...

    would be well worth it.. you got all 4 or what?

  3. #23
    12.36@109 Red on Red WS6's Avatar
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    If you replace O2's just replace the front 2. They are the 4 wire flat connector. Look on www.oxygengeek.com or GMpartsdirect.com

  4. #24
    LS1 chosen son lemons12's Avatar
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    Quote Originally Posted by Red on Red WS6 View Post
    If you replace O2's just replace the front 2. They are the 4 wire flat connector. Look on www.oxygengeek.com or GMpartsdirect.com
    why would you just do two....... makes no sense.. would you just change your front right brake? or one side of spark plugs...?

  5. #25
    12.36@109 Red on Red WS6's Avatar
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    Quote Originally Posted by lemons12 View Post
    why would you just do two....... makes no sense.. would you just change your front right brake? or one side of spark plugs...?
    Because the back only test the efficiency of the Catalytic converters and have nothing to due with fueling of the engine. No point in spending the money on them unless the SES light is on for the rears. Even then the money you would spend on them would be better suited for a PCM tune with no rear O2's and a performance tune.
    just my .02

  6. #26
    King 0f n00bz shady milkman's Avatar
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    blacker than wesleysnipes
    98' trans am

    ok my friend is having the same issue with his lt1 impala....you might have a burnt valve ...try seafoaming your car first..get some of that carbon out...then do a compression test on the cylinders..i bet you'll find your problem is with the valve train..in a valve replacement..if everything is fine on the compression...look into replacing your opti..or even take a look at your timing chain and make sure its tight and set up properly...oh and test your injectors also.

  7. #27
    Giant Dicks Car Club Zapper2003's Avatar
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    I do have lifter tap on the drivers side that i had never noticed before. Its not knocking very hard, just a very light tapping that becomes inaudible as i rev (due to the frequency of the tap i would imagine). I also thought injectors as well because the car had been sitting for a few months untouched, and I've not run any cleaner through the fuel system, only some dry gas to hopefully get rid of any condensation (which i will run some more of in time). The car is running quite rich though.


    A compression test is out of the effing question. It took me 4 (yes, FOUR) nights to change just the plugs, 2 of which I didnt even change, the neighbor did, and you can bet your ass i'm not gonna get in there again unless its dire straits.

    How do you test injectors? They're on top and fairly easy to get to, i know that much. Also, if i happen to pull them out and they're visibly dirty (ie: varnished like dried up gas looks) how do i go about cleaning them?

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