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anyone ever had this problem?

This is a discussion on anyone ever had this problem? within the Firebird / WS6 forums, part of the Vehicle Specific category; 98 TA 4L60E when i idle down the road the car bucks forward. When i hit the gas it dosnt ...

  1. #1
    Member damianj03's Avatar
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    slap your mama red
    1998 trans am

    anyone ever had this problem?

    98 TA 4L60E

    when i idle down the road the car bucks forward. When i hit the gas it dosnt have the power it normally does. Also when accelerating the cars dash and chassy will vibrate pretty bad. Once i get to cruising speed it stops shacking and when i let off of the throttle while cruising it backfires sometimes. I replaced the O2 sensors today and that did not fix the problem. Not sending any codes and the SES light is not on. So i am guessing that it has a bad plug/ plug wire/ coil pack. Any suggestions? I guess my next stop is at the stealership to get a diagnostic done to keep from throwing monies at it.

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    My geuss would be maybe fuel pump and or cam sensor. Hope you get it resolved.

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    None Shall Pass Knight's Avatar
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    Does the car still idle normally? Try cleaning the MAF. Check the fuel pressure at the rails. You should have around 58 psi.

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    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
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    Quote Originally Posted by Knight View Post
    Does the car still idle normally? Try cleaning the MAF. Check the fuel pressure at the rails. You should have around 58 psi.
    This...

  5. #5
    Member damianj03's Avatar
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    slap your mama red
    1998 trans am

    im going to drop it off at the local chevy stealership to have it diagnosed.

  6. #6
    Member damianj03's Avatar
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    slap your mama red
    1998 trans am

    got the car back it was one of the things that i was suspecting cylinder 4 wasnt firing due to a burned through plug wire. So my next question is what is the best plug wires to use when you have LT headers on since my wires were the factory OEM and got burned from my LT. Or is there a cover or heat sheild i can get for my wires? thanks.

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    None Shall Pass Knight's Avatar
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    I run MSD wires on mine, no issues. Plenty of clearance.

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    Junior Member tdevil55's Avatar
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    +1 on the MSD wires, I run LTs and MSD and never had a burned wire, just make sure they are not touching the header and you should be fine.
    02 Z28/LS1 NBM - TIN CAN RACING
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    Senior Member INMY01TA's Avatar
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    They sell insulated wire sleeves (I want a set myself) but they like $60-$80 I believe.

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    Junior Member ADICECCA21's Avatar
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    Make sure you do all 8 plugs too along with the wires. Sounds stupid but I see people all the time just do one plug.

  11. #11
    Former Mopar Man 2002ssslp's Avatar
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    I think it's the fuel pump.
    My ride is a 2002 Camaro SS SLP #3296 with 30k, LTH, 3" Y, CME, Frost tune, K&N, ported TB, Blackwing lid, Bellows, MSD, Denso Iridium, and 85mm MAF, Bilsteins, Eibach springs, SLP strut brace, Adj. Panhard, TA Girdle, UMI, Pro 5.0, Nitto NT555
    My wife has a 2004 GTO with the rare SAP, 18" wheels, K&N Cold Air System, MSD, Ported TB, Frost tune, Denso Iridium, Flowmaster cat-back, 3200 Yank, 75k

  12. #12
    Member damianj03's Avatar
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    slap your mama red
    1998 trans am

    well i replaced the plugs when i installed the headers about 3-4k miles ago so im hoping they are still good car runs like a top again. As for the msd wires what do they normally run for a set? And who is it that makes or sells the wire insulators?

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    2000 Grand Prix GTP
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    Summit Racing has the insulators...made by Taylor, I believe.

  14. #14
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    I run DEI plug wire sleeves on our car. Nice thing about the MSD wires is that you can bend the boots to gain additional clearance. Make sure that when you installed the wires that you heard or felt one "click" on each plug and two "clicks" on each coil pack.

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