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Old 08-14-2012, 02:31 PM   #1
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80 CJ 5 running real bad

Hello all
First, I'm no mechanic.......with that said I need some help. Driving my 4 speed yesterday. Got to 35-40 mph and started shaking and shuddering real bad. Back fired a few times throughout the process of getting it home. Engine dies several times on the route home. Thought I was out of gas at first, but same thing continued after adding fuel. Oil ok. Couldn't get it over 20 mph without knocking and shaking. Thoughts?

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Old 08-14-2012, 09:40 PM   #2
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Quote:
Originally Posted by Ballen4him
Hello all
First, I'm no mechanic.......with that said I need some help. Driving my 4 speed yesterday. Got to 35-40 mph and started shaking and shuddering real bad. Back fired a few times throughout the process of getting it home. Engine dies several times on the route home. Thought I was out of gas at first, but same thing continued after adding fuel. Oil ok. Couldn't get it over 20 mph without knocking and shaking. Thoughts?
I would check the timing first off or have a shop do it

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Old 08-15-2012, 07:54 AM   #3
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vacuum line problem perhaps..
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Old 08-15-2012, 12:32 PM   #4
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Originally Posted by 4Jeepn View Post
vacuum line problem perhaps..
check this first!
Also, possable crack in the intake manifold?
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Old 08-15-2012, 01:29 PM   #5
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Is distributor still tight (hold-down bolt tight)??
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Old 08-15-2012, 05:09 PM   #6
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I have had a similar problem with my '82 CJ7. I would check the vacuum lines as suggested above but also I would look at the ignition control module NAPA pn tp-40. I found on mine that the module needed replaced and noticed rust to where it mounted on the fenderwell. I cleaned up the surface rust and when I installed the new module I put a dab of dielyctic(?) grease where the bolts mount it to the fender. I always carry a spare one in my toolbox to ensure that if it fails on the trail I can get up and running in less than 10 minutes. Hope this helps.

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