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83 lg4 weird idle

Old 06-25-2018, 03:30 PM
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83 lg4 weird idle

After the motor is warm it will idle around 7/800 rpm. I can rev it a little and it settles back down. If I rev it to 4000 rpm it will come back down to 1100rpm and go up and down from 1100 to 1300. Any ideas? I have been battling this car for two years. All stock CCC quadrajet. I have a video, how do I upload?
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Old 07-04-2018, 01:48 PM
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Car: 1985 Trans Am
Engine: 5.0 305 High Output V8
Transmission: T5 Manual
Re: 83 lg4 weird idle

Hey, not sure if I can be of any help with the carb, but if you have a YouTube account, just upload the video there and post the link. Just make sure you don't set the video to private, or nobody will be able to see it. Hopefully that will at least help you to get the your video up to where the right set of eyes can watch it and maybe get you some answers.

Last edited by Venom_1138; 07-04-2018 at 01:49 PM. Reason: Ducking autocorrect! ;)
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Old 09-01-2018, 08:41 AM
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Re: 83 lg4 weird idle

Originally Posted by Venom_1138 View Post
Hey, not sure if I can be of any help with the carb, but if you have a YouTube account, just upload the video there and post the link. Just make sure you don't set the video to private, or nobody will be able to see it. Hopefully that will at least help you to get the your video up to where the right set of eyes can watch it and maybe get you some answers.


Last edited by Rich1374670x; 09-01-2018 at 08:42 AM. Reason: words
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Old 09-01-2018, 08:43 AM
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Re: 83 lg4 weird idle

after higher rpm idle does not settle back down
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