Car won't accelerate!!!
05-31-2012, 07:27 PM
#1
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Car: 89' Firebird
Engine: 3.4L V-6
Transmission: 700-R4
Axle/Gears: Whatever came stock!
Car won't accelerate!!!
Hey guys heres a tricky one..
Randomly my car will have no response to pressing the gas from stand still. Its like it basically doesnt want to accelerate.....almost like its getting no gas. Itll sputter and bog and then stall. If you just let it idle though itll run perfectly fine!! This seems to happen after linger trips.
Recently changed the ignition coil, ignition control module, TPS and cap. Like i said itll do this randomly so one minute itll be running fine next its bogging hesitating and stalling.
I checked the fuel pressure and it seems to be within specs. A few things that come to mind may be an intermittent low fuel pressure or a bad pickup coil. Any other thoughts? Its an 87 5.0 TPI. Thanks guys!
Randomly my car will have no response to pressing the gas from stand still. Its like it basically doesnt want to accelerate.....almost like its getting no gas. Itll sputter and bog and then stall. If you just let it idle though itll run perfectly fine!! This seems to happen after linger trips.
Recently changed the ignition coil, ignition control module, TPS and cap. Like i said itll do this randomly so one minute itll be running fine next its bogging hesitating and stalling.
I checked the fuel pressure and it seems to be within specs. A few things that come to mind may be an intermittent low fuel pressure or a bad pickup coil. Any other thoughts? Its an 87 5.0 TPI. Thanks guys!
05-31-2012, 07:50 PM
#2
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Car: 92 Fierbird/77 K2500/01 serria
Engine: 350/ 3.1 / 5.3L
Transmission: 700R4/th400/4l60e
Axle/Gears: 2.33 REAR GEAR 9 bolt disc
Re: Car won't accelerate!!!
Sounds like what happened o me fuel pressure might read fine bu u have to do a volume test on the file pump witch involves hooking up the fuel pressure gauge and obtaining a empty 2o oz bottle insert the bleed off hoe into the bottle and fire it up and let it idle if the 20 oz bottle does not get gafe full in 15-30 seconds you need a fuel pump see my post cutting out at 2500 ish
05-31-2012, 07:59 PM
#3
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Car: 89' Firebird
Engine: 3.4L V-6
Transmission: 700-R4
Axle/Gears: Whatever came stock!
Re: Car won't accelerate!!!
Sounds like what happened o me fuel pressure might read fine bu u have to do a volume test on the file pump witch involves hooking up the fuel pressure gauge and obtaining a empty 2o oz bottle insert the bleed off hoe into the bottle and fire it up and let it idle if the 20 oz bottle does not get gafe full in 15-30 seconds you need a fuel pump see my post cutting out at 2500 ish
Thanks! I shall try this!
05-31-2012, 08:04 PM
#4
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Car: 89' Firebird
Engine: 3.4L V-6
Transmission: 700-R4
Axle/Gears: Whatever came stock!
Re: Car won't accelerate!!!
Also if anyone has anymore ideas i am totally open to suggestions!
05-31-2012, 10:43 PM
#5
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Car: 1988 IROC-Z Camaro, 1981 Trans Am
Engine: 350 TPI, 301 N/A
Transmission: 700r4, 350thm
Re: Car won't accelerate!!!
Not a bad idea. Also, because its so easy to check, ohm out your injectors. 
They can work ok at idle because its less load, but once there is load they will fail.
Dont forget to check themwhen cold AND warm too
They can work ok at idle because its less load, but once there is load they will fail.Dont forget to check themwhen cold AND warm too
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