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bad f****** problems with my TA

This is a discussion on bad f****** problems with my TA within the General Help forums, part of the LSx Technical Help Section category; well this problem started a while ago but i thought i fixed it. My engine is missing and hesitates extremely ...

  1. #1
    Junior Member
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    black
    1999 Trans Am

    bad f****** problems with my TA

    well this problem started a while ago but i thought i fixed it. My engine is missing and hesitates extremely bad during acceleration. At first it just started stumbling in the 4500 rmp range and after i drive it for a while it will get to the point i cant drive over 1000 rpms without the car dying. About a month back i changed the fuel filter because the original owners did not take care of the car and were using regular gas and it ran fine but now i cant even keep up an idle. Im just wondering if anyone has had this problem,l i know that its either faulty plugs or wires, bad fuel pump/regulator, damaged distributor, clogged converters , or sensor/computer problems but i dont know where to start. HELP PLEASE!!!

  2. #2
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    black
    1999 Trans Am

    Oh yeah when i scanned it, it read my air was running lean

  3. #3
    Life in the Fast lane sunsetorangess's Avatar
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    Met. Sunset Orange
    01 SS

    What codes are you putting out?
    J
    2001 SS, Its not the car its the Driver that matters....

  4. #4
    old timer blue02Z's Avatar
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    Navy Blue Metallic
    2002 Z28

    check all of your electrical connections, ie: maf, iat, etc... also check your sensors on your TB. you might want to clean out your TB and maybe check your ignition stuff like plugs and wires and coils. your car doesnt have a distributor so you can rule that out. how many miles do have? any mods?

  5. #5
    Veteran 0rion's Avatar
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    06 duramax

    I would look at plugs and wires first but it also sounds like it could be an O2 sensor. How does it idle? When cold? When hot? If it's throwing codes stop by an autoparts store and have them scan it ( most do it for free) and see what codes it's throwing. That'll be very helpful.

  6. #6
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    if it sets a while (so when its cold) it idles beautifully but when it heats up it gets really bad really fast, but i cheaked the plugs and there fried so thats where i'm starting

  7. #7
    Member Rich L's Avatar
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    Burgandy
    2002 Z28

    Quote Originally Posted by blackbird33 View Post
    if it sets a while (so when its cold) it idles beautifully but when it heats up it gets really bad really fast, but i cheaked the plugs and there fried so thats where i'm starting
    It might be the o2 sensors. Do you use octane boosters?

  8. #8
    Member SSpdDmon's Avatar
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    SOM
    '01 Camaro SS

    Here's a list of likely sources (in order) for your problem based on the symptoms you describe:

    Bad O2 sensors up front (B1S1 and B2S1)
    Dirty/faulty MAF sensor
    Faulty IAT, TPS, or ECT sensor
    Clogged injectors
    Faulty fuel pump
    Loose grounds or connectors
    Battery diing
    Faulty Alternator

  9. #9
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    Another vote for 02 sensors

  10. #10
    SSMOKIN_SS
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    Quote Originally Posted by SSpdDmon View Post
    Here's a list of likely sources (in order) for your problem based on the symptoms you describe:

    Bad O2 sensors up front (B1S1 and B2S1)
    Dirty/faulty MAF sensor
    Faulty IAT, TPS, or ECT sensor
    Clogged injectors
    Faulty fuel pump
    Loose grounds or connectors
    Battery diing
    Faulty Alternator
    More than likly it's an alternator. I had the same problem in my old car. It just wouldn't idle. When I pulled up to red lights I had to put it in neutral and keep reving it and throw it into Drive and take off.

  11. #11
    Senior Member ss~zoso~ss's Avatar
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    doesnt the computer have safe mode 02 parameters tho?

  12. #12
    My Neighbors Hate Me!!! lvbroham1's Avatar
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    Artic White
    2001 Chevy Camaro SS

    Had the same problem...

    Well, I had this same problem about a year ago. The car would be hard to start and experienced the same problems during acceleration. Turned out to be a bad fuel pump. It's not too bad to change it and even if it's not that it's not a bad idea if the pump hasn't been changed before or in a very long time. To me that sounds like what the problem is. Also it is a very, very bad idea to run your car on low octane gas or to run the gas low or almost empty. The stuff that accumulates in the tank finds it's way to the pump and can cause some serious problems! Also like said before in the previous posts make sure all your vacum lines are connected and all wires are connected properly too. Hope this helps.

  13. #13
    Senior Member SeVeReDiStOrTiOn's Avatar
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    05 Wrangler
    00 Z28 sold :-(

    I'd check your fuel pressure just for shits and giggles..you can rent a gauge at autozone or just buy one. The o2's would usually throw at least one of several codes...even though it does kinda sound like the front two by what you're describing. But running lean on both banks in usually the maf or fuel pump.

  14. #14
    Member Rich L's Avatar
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    Burgandy
    2002 Z28

    The reason I think it might be the o2 sensors is that he discribed a good cold idle and then a bad warm idle. (the o2 sensors arent used during the close loop phase of engine warm up) The engine warms up, then the loop opens... if the sensors are shot, then you get problems, like a rough idle and hessitation under accelleration.

    blackbird33- Change your plugs to see it if that helps, but since the previous owners used the wrong fuel, it might have ruined your 02 sensers as well.

  15. #15
    CAM mmmmmm... Toes's Avatar
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    WHITE
    2000 Z28 M6

    bad fuel pump x2

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