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Just bought GTA, runs and drives fine, but no power and low shifting

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Old May 10, 2009 | 06:31 PM
  #51  
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Re: Just bought GTA, runs and drives fine, but no power and low shifting

Got brand new wires and put in the injectors too. Not much fun to do, but it was easy. But the only problem remaining is the ANNOYING early shifting. I've adjusted the TV cable 100 times it seems, so i know that is not it anymore. I'm going to buy a new accelerator cable tomorrow and put it in. If not, I'll look for a new TB as the spring on it is loose. If thats not it......well, I'll be getting a different car. I'm super bored with not being able to have any fun with my new car.
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Old May 10, 2009 | 06:53 PM
  #52  
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Car: '89 Trans AM/'88 GTA
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Re: Just bought GTA, runs and drives fine, but no power and low shifting

Unreal Kev, I wonder what the heck is going on!?

Your trans felt good when it did shift, so I doubt the
problem lies there. If it is the throttle cable or the TB,
there has got to be a way to at least test those parts.

but, I have no idea how, haha!
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Old May 10, 2009 | 09:54 PM
  #53  
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From: San Diego
Car: 1994 Trans Am
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Re: Just bought GTA, runs and drives fine, but no power and low shifting

LOL!!! I might need your help this time with a TB swap. I want to check out a cable at Autozone and see how much play/slack a brand new cable has. You and Brian saw how much slack this bastard has. I can have it attached to the TB and wear it like a belt all while I'm driving the car. LOL!!! It sucks bro.
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Old May 10, 2009 | 10:06 PM
  #54  
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From: Norwich, CT
Car: '89 Trans AM/'88 GTA
Engine: (2) Tuned Port L98's
Re: Just bought GTA, runs and drives fine, but no power and low shifting

Your gunna get new/used TB? either way, whether its the cable or
a TB swap.. I can help out, Id love to meet up with Brian, considering
I didnt get the chance earlier on.
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Old May 10, 2009 | 11:03 PM
  #55  
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From: San Diego
Car: 1994 Trans Am
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Axle/Gears: 3.23
Re: Just bought GTA, runs and drives fine, but no power and low shifting

Actually I was thinking more along the lines of swapping out yours for a test. I'm going to meet up with Brian this coming Saturday morning. I'll pick you up on the way.
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Old May 11, 2009 | 12:39 AM
  #56  
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From: Norwich, CT
Car: '89 Trans AM/'88 GTA
Engine: (2) Tuned Port L98's
Re: Just bought GTA, runs and drives fine, but no power and low shifting

Yea, I dont know if I wanna tear the beast down that far, but if
it honestly comes to that.. a six pack of beer might be in order!

As for the weekend, that sounds good.. Ill plan for it.
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Old May 11, 2009 | 07:28 AM
  #57  
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From: Pigeon Forge ,TN
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Engine: 2.8 v/6
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Axle/Gears: open/3.42
Re: Just bought GTA, runs and drives fine, but no power and low shifting

I'm glad to hear you got the running down now if you three can get the shiftting right you can have some real fun ahead .
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Old May 11, 2009 | 08:57 AM
  #58  
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Re: Just bought GTA, runs and drives fine, but no power and low shifting

Originally Posted by BigWhiteGTP
Got brand new wires and put in the injectors too. Not much fun to do, but it was easy. But the only problem remaining is the ANNOYING early shifting. I've adjusted the TV cable 100 times it seems, so i know that is not it anymore. I'm going to buy a new accelerator cable tomorrow and put it in. If not, I'll look for a new TB as the spring on it is loose. If thats not it......well, I'll be getting a different car. I'm super bored with not being able to have any fun with my new car.
I wonder if the actual throttle valve in the trans itself is sticking. The TV cable was damaged for a long time before you got the car it may have damaged the actual valve in the tranny. I believe the Trans Go shift kit comes with a new one. And I don't think they are that hard to put in.

Any tranny experts out there? The car is shifting about 4800 rpm instead of the 5500 rpm it is supposed to shift at.

Kevin can you manually shift the car from 1st to 2nd at 5500 rpm?
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Old May 11, 2009 | 03:19 PM
  #59  
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Car: 1991 GTA
Engine: 350 tPI
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Re: Just bought GTA, runs and drives fine, but no power and low shifting

I dunno why, but when stock the GTA used to shift at 3000 rpm. Do you have an aftermarket shift kit and I missed the post?

I used to shift mine manually at the track, although it wouldn't really make much power over 4000.

I know if I had to drive a stock 350 tpi today, it would make me cry.
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Old May 11, 2009 | 03:49 PM
  #60  
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Car: 1988 Trans Am
Engine: L98 355
Transmission: 700R4
Axle/Gears: 3.70
Re: Just bought GTA, runs and drives fine, but no power and low shifting

When my car was supercharged, the valves in the transmission were changed so that it would shift around 6000rpm. Without the blower, my 1-2 occurs at about 4500 rpm. Rest of the shiftpoints are fine. I just manually shift 1-2 when playing around or at the track...doesn't bother me too much.
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Old May 14, 2009 | 08:40 AM
  #61  
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Transmission: t/5
Axle/Gears: open/3.42
Re: Just bought GTA, runs and drives fine, but no power and low shifting

Have you got it fixed yet ?
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Old May 14, 2009 | 02:15 PM
  #62  
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From: San Diego
Car: 1994 Trans Am
Engine: LT1
Transmission: Auto
Axle/Gears: 3.23
Re: Just bought GTA, runs and drives fine, but no power and low shifting

Originally Posted by 89-bird
Have you got it fixed yet ?

HAHA!!! No. It's good enough for now tho, so I'm not going to worry about it. There is an annoying humming sound and code 44 that is taking my attention right now.
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Old May 15, 2009 | 08:03 AM
  #63  
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From: Pigeon Forge ,TN
Car: Firebird
Engine: 2.8 v/6
Transmission: t/5
Axle/Gears: open/3.42
Re: Just bought GTA, runs and drives fine, but no power and low shifting

I would take the belt off the front of the engine and start it and see if the humming goes away and if it does I would try and find the accessory that is causeing the humming .
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Old May 18, 2009 | 07:57 AM
  #64  
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From: Pigeon Forge ,TN
Car: Firebird
Engine: 2.8 v/6
Transmission: t/5
Axle/Gears: open/3.42
Re: Just bought GTA, runs and drives fine, but no power and low shifting

Did you get the humming figured out and code 44 .
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Old May 18, 2009 | 01:12 PM
  #65  
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From: San Diego
Car: 1994 Trans Am
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Transmission: Auto
Axle/Gears: 3.23
Re: Just bought GTA, runs and drives fine, but no power and low shifting

The humming is from the compressor. I made a post on it but have yet to get a response. I can live with it now that I know what it is. I figured it out because when I drive with the windows down late at night after work, the annoying humming isn't there. So I put 2 and 2 together and luckily came up with 4. LOL!!!
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Old May 18, 2009 | 06:01 PM
  #66  
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From: Norwich, CT
Car: '89 Trans AM/'88 GTA
Engine: (2) Tuned Port L98's
Re: Just bought GTA, runs and drives fine, but no power and low shifting

So, are you satisfied with the output of the car when us three finally got
the code 33, 34, & 44 to clear and stay gone? I thought the performance
was night and day on the drive back home.

Either way, I had a blast on Saturday with you & Burnout!
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Old May 18, 2009 | 06:17 PM
  #67  
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From: San Diego
Car: 1994 Trans Am
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Transmission: Auto
Axle/Gears: 3.23
Re: Just bought GTA, runs and drives fine, but no power and low shifting

Oh hell yeah. But at the same time, I won't be completely satisfied until the car is running that good all the time, everytime I drive it. I put the new relays in and haven't drove it yet for fear that problem will be back. I'll drive it to work here real soon with my fingers crossed.

It was fun. We all need to roll up to the Pavs one sat night and chillax. Let me know if you want my help with your fender. I would love to help get that bastard straight.
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Old May 18, 2009 | 06:20 PM
  #68  
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From: Norwich, CT
Car: '89 Trans AM/'88 GTA
Engine: (2) Tuned Port L98's
Re: Just bought GTA, runs and drives fine, but no power and low shifting

Originally Posted by BigWhiteGTP
It was fun. We all need to roll up to the Pavs one sat night and chillax. Let me know if you want my help with your fender.
I would love to help get that bastard straight.
For sure! Id love to roll with that sexy GTA and Brian's insane IROC!
I need to motivate myself on that fender work, autobody stuff doesnt
interest me like EFI engines do!

Well, the only way to know if the 33 or 44 is intermittent is to drive it
around and pray. At least If it does happen again, we know where to
look!
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Old May 19, 2009 | 11:21 AM
  #69  
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From: Pigeon Forge ,TN
Car: Firebird
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Transmission: t/5
Axle/Gears: open/3.42
Re: Just bought GTA, runs and drives fine, but no power and low shifting

Glad to hear you guys got it now for the compressor it could be low of oil or the clutch coil may be going bad or the bearing for the pulley making noise under load .
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Old Jun 3, 2009 | 08:23 AM
  #70  
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From: Pigeon Forge ,TN
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Transmission: t/5
Axle/Gears: open/3.42
Re: Just bought GTA, runs and drives fine, but no power and low shifting

Have you given the all clear yet ?
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Old Jul 9, 2009 | 05:11 AM
  #71  
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Car: 1982 pont t/a
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Transmission: TH700r4
Axle/Gears: 3.73
Re: Just bought GTA, runs and drives fine, but no power and low shifting

1

Last edited by gtomark2; Jul 9, 2009 at 05:59 AM. Reason: have 2 post of the same
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Old Jul 9, 2009 | 05:46 AM
  #72  
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From: portland,oregon
Car: 1982 pont t/a
Engine: will be 5.7 l98 tpi
Transmission: TH700r4
Axle/Gears: 3.73
Re: Just bought GTA, runs and drives fine, but no power and low shifting

2

Last edited by gtomark2; Jul 9, 2009 at 06:01 AM. Reason: to many post new to the this sit
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Old Jul 9, 2009 | 05:56 AM
  #73  
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From: portland,oregon
Car: 1982 pont t/a
Engine: will be 5.7 l98 tpi
Transmission: TH700r4
Axle/Gears: 3.73
Re: Just bought GTA, runs and drives fine, but no power and low shifting

Originally Posted by 89-bird
Did you get the new stuff on or have you not flowed the injectors yet ?

I have a 1989 gta 5.7 l98 I got mine ceap $ 150.00. but when I got mine it ran like crap no power bad shif pont's and when I turn the heater motor on I got were's and it turn out to be a bad ground at the back of the motor on the right siad of the motor mine run's fine now with lt1 inj in it but the body is junk but I have a 1982 pont t/a and is is all going in it should be fun to see and hear 1982 gta and I payed $50.00 for it you all need to see what a 1982 $ 200.00 gta looks like Ha Ha sleeper but very fast and when I get it to gether I will set it up to burn E85 gas and for better gas mile eg may try brown gas IE ( hidrgen gas ) and good luck can never have to many ground's check them make new one's
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