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please help with my 87 Chrysler Lebaron
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Kitn
New User
Jan 24, 2009, 3:37 PM
Post #1 of 5
(3370 views)
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please help with my 87 Chrysler Lebaron
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One day while driving down the interstate, the car decided to drop its speed, sputter and refused to go more than 30 mph. I stopped, turned it off, restarted it and it was fine. The next morning it refused to start. I kept trying to get it started and eventually it did.
It does this intermittently with no apparent reason. Some days it starts and some days it can take a half an hour for it to start. The heat or cold doesn't seem to have anything to do with it. The battery is fine. Some days it will be completely fine and some days it will go really slow, jerk around a lot and make a lot of noise. Sometimes when I'm backing up and I stop to put it in drive it cuts off.
The computer codes only show that the battery has been disconnected recently.
Everything that seemed logical has been changed. We checked all the hoses and replaced the cracked ones, changed the fuel filter and the fuel pump, and put a new MAP sensor on it.
ANY information would be helpful.
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Loren Champlain Sr
Veteran
/ Moderator
Jan 24, 2009, 3:58 PM
Post #2 of 5
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Re: please help with my 87 Chrysler Lebaron
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Have you had the charging system checked? The loss of battery voltage code bothers me. If that happens, you'll lose any codes stored. What engine is in this? The severe loss of power could be restricted exhaust. When it doesn't want to start, you'll need to check to see if you are lacking fuel or spark. Although, rarely, will a plugged exhaust cause starting issues, I've seen catalytic converters 'break up' and intermittently block off the exhaust.
With the rest of the symptoms, I doubt that this is the extended crank symptom, but could be the loss of power problem. If a chunk of the catalyst breaks off and plugs the exit, it will effect manifold vacuum and could cause a flooding condition.
Loren
SW Washington
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Guest
Anonymous Poster
Jan 24, 2009, 4:28 PM
Post #3 of 5
(3367 views)
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Re: please help with my 87 Chrysler Lebaron
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Its a 2.5fi engine. How would I check for a plugged exhaust?
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Loren Champlain Sr
Veteran
/ Moderator
Jan 24, 2009, 4:33 PM
Post #4 of 5
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Re: please help with my 87 Chrysler Lebaron
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The easiest and most accurate is to remove the Oxygen sensor and install a pressure guage. Anything over 2psi is bad. You can also connect a vacuum guage to a port on the intake manifold. Take a reading at idle, then at 2500 rpm. The vacuum reading at 2500 should be as great or greater than the reading at idle. If safe to do so, you can try driving it with the Oxygen sensor out of the pipe, but still connected electrically. By doing this, you are relieving any backpressure, but it'll be noisy . And, you want to make sure there's no chance of the exhaust catching anything on fire.
Loren
SW Washington
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jan 25, 2009, 1:24 AM
Post #5 of 5
(3351 views)
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Re: please help with my 87 Chrysler Lebaron
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Just to add thoughts for that vintage Chrysler:
If rusted at all and a wet passenger's side floor - check behind the kick panel for the "puter" box in there. Some get so soaked and corroded - wiring and all they have to be redone. These cars also don't like voltage changes, drops, disconnects more than others,
T
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