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89 gta only fires when Jumped

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Old Sep 28, 2016 | 02:39 PM
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Car: 1989 trans am gta /2001 Jeep wj
89 gta only fires when Jumped

Hello gents Title describes it brand new battery she only kicks over with jumper cables. Bad starter/starter wire?
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Old Sep 29, 2016 | 08:01 AM
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Re: 89 gta only fires when Jumped

More likely, bad batt cable(s).
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Old Sep 29, 2016 | 08:39 AM
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Car: 1989 Trans Am GTA
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Re: 89 gta only fires when Jumped

Where are you connecting the negative cable?

Starter should have an always hot cable directly from positive terminal on battery to starter terminal.

Negative cable usually grounds to engine block. Its been a while since I had a stock engine so don't remember the exact layout. My LT1 grounded to the accessory bracket, but I changed the grounding location so it was on the head instead.
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Old Sep 29, 2016 | 10:34 AM
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Car: 1989-92 FORMULA350 305 92 Hawkclone
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Re: 89 gta only fires when Jumped

Load test the new battery?
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Old Sep 29, 2016 | 11:40 AM
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Re: 89 gta only fires when Jumped

I've had similar issues with a bad solenoid.
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Old Oct 1, 2016 | 01:05 PM
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Re: 89 gta only fires when Jumped

Havent load tested the battery , brake light on dash comes on when trying too fire it . Ive only had it atart by itself twice No security light issue . Cablesat the battery look okay
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Old Oct 1, 2016 | 01:07 PM
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Re: 89 gta only fires when Jumped

Brettr81 I was looking into that last night its by the drivers kick panel right? I discoverd the car has a gm keyless entry system
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Old Oct 2, 2016 | 03:33 AM
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Re: 89 gta only fires when Jumped

No, it's the thing that the wires going to the starter connect to on the starter. It's like a $10-15 part. When it starts to fail, a lower voltage will not be enough to make it work. I can't remember the exact specifics, but if you look it up, it's pretty straight forward. It can be a PITA to replace though. It will be under the exhaust manifold on the passenger side. Make sure to disconnect the battery before messing with the wires to it.
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Old Oct 2, 2016 | 09:33 AM
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Car: 1989 trans am gta /2001 Jeep wj
Re: 89 gta only fires when Jumped

Starter solenoid? Thats easy enough lol
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Old Oct 2, 2016 | 11:46 PM
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Re: 89 gta only fires when Jumped

Well after Doing a full brake Job on my Jeep I was preparing too put the GTA back in the garage for giggles i tried firing it without having to Jump it she turned over sputterd died okay nbd hit the key a second time lose all power ... check the pos wire nada wiggle the ground wire? Bingo previous owner being a hack grounded it too the header bolt and left it loose. Well after cranking it a few times with her not starting i let off they key and ws met with quite the backfire I have had boats with straight exhaust on a 454 not be this loud lol.
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Old Oct 2, 2016 | 11:48 PM
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Re: 89 gta only fires when Jumped

Ill update in the am If it fires over or not ,but for the record I was indeed the battery cables
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Old Nov 2, 2016 | 01:37 PM
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Car: 1989 trans am gta /2001 Jeep wj
Re: 89 gta only fires when Jumped

Well im still chasing gremlins,45psi at the fuel rail new ignition starter switch it cranks and sputters but wont start-edit

My ignition starter switch was bad ,rebuilt my distributor and bypassed the vats module with an ebay bypass module 15$ well spent

Last edited by Hotrodp38; Sep 20, 2018 at 09:40 PM. Reason: Fixed the issue
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