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1984 trans am stock carb sticking

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Old 07-19-2012, 07:04 PM
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Car: 1984 Trans Am
Engine: 305 cui
1984 trans am stock carb sticking

so i have a 1984 trans am with a stock carb that recently was set to idle to high after lowering the screw on the throttle and fixing the idle, a new prob came up, now the throttle gets stuck when ever the throttle is pushed in, when i turn the car off for a few minutes and come back it goes away until i push the gas in, i tried putting WD-40 on the throttle arm with no diffrence and its really weird and make the car really hard to drive (It does not slow down/hard to stop). so i wanted to know if anyone has had this problem before or knows how to fix it

-Thanks
Old 07-19-2012, 07:10 PM
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Re: 1984 trans am stock carb sticking

IMO I would be looking at a better throttle spring.
Old 07-19-2012, 09:23 PM
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Re: 1984 trans am stock carb sticking

Originally Posted by Edwardgp
IMO I would be looking at a better throttle spring.
but it only does it when the car is on, believe me its a real head scratcher
Old 07-20-2012, 12:32 PM
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Re: 1984 trans am stock carb sticking

i made a YouTube video to show exactly what the prob is

heres the link

Old 07-20-2012, 05:56 PM
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Re: 1984 trans am stock carb sticking

Bypass, it looks to me like something bad is going on with the accelerator pump. What is all that material around the shaft? Do you have an electric choke and if you do, do you have 12 volts to it?
Old 07-20-2012, 06:25 PM
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Re: 1984 trans am stock carb sticking

Originally Posted by Edwardgp
Bypass, it looks to me like something bad is going on with the accelerator pump. What is all that material around the shaft? Do you have an electric choke and if you do, do you have 12 volts to it?
yes i do belive its an electric choke, and that material is a mix if dirt (possibly the fiberglass from the hood) and carb cleaner.

on a side note i have been hearing the carb clicking (can kinda hear it in video), but havent payed much mind since the car started and drove, any ideas on that too?
Old 07-20-2012, 06:59 PM
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Re: 1984 trans am stock carb sticking

Your throttle shaft is worn and manifold vacuum makes it hang up.

Clicking is the MCS working normally.
Old 07-20-2012, 07:37 PM
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Re: 1984 trans am stock carb sticking

Originally Posted by Apeiron
Your throttle shaft is worn and manifold vacuum makes it hang up.

Clicking is the MCS working normally.
Should I get a rebuild kit? Or is there an easy fix to it?
Old 07-21-2012, 03:07 PM
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Re: 1984 trans am stock carb sticking

Originally Posted by bypass-21
Should I get a rebuild kit? Or is there an easy fix to it?
Rebuilding the E4ME is easy to do; all it takes is time and patience.

With the condition the outside of the carb looks it might be a good idea to rebuild it.

There are many sources here on TGO and elsewhere that will show you exactly what to do.
Old 07-21-2012, 04:02 PM
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Re: 1984 trans am stock carb sticking

Rebuild kits won't address that at all. If that's actually the problem, you'd need to disassemble the base and bush the throttle shafts.
Old 07-21-2012, 04:09 PM
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Re: 1984 trans am stock carb sticking

You can tell they're worn by checking for play back and forth on the primary shaft (with the throttle open otherwise the butterflys keep it tight). If it wiggles a bit (and I'm sure it will) you'll need to install bushings in the base. You can get the bushings from places like carbs unlimited. Rebuild it while it's apart, why not.
Old 07-21-2012, 10:43 PM
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Re: 1984 trans am stock carb sticking

Exactly. Tear it apart to find the problem and rebuild it while you are at it.
Old 07-22-2012, 06:52 AM
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Re: 1984 trans am stock carb sticking

Some info on rebuilding the ccc-qjet:

https://www.thirdgen.org/forums/carb...-ccc-qjet.html
Old 08-01-2012, 08:56 PM
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Re: 1984 trans am stock carb sticking

thanks! i will look into it and get to work
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