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Sedans Chrysler LHS Chrysler LHS
1361 messages, Last post on Dec 03, 2009 at 8:56 PM
You are in the Chrysler LHS Forum. Your Hosts are pat & karens
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Replying to: lhsdude (Jan 25, 2009 2:46 pm) Have you found any solutions to fix your 96 LHS yet? I have a 94 LHS with 44,000 miles that has the exact same problems as your 96 (running rough and chugging during acceleration), except mine also runs rough at idle, but smooths out at constant RPMs while driving on level roads (no hills). My gas mileage has also decreased from 22 to 15. It began doing this all of a sudden a couple of months ago. Changing plugs, wires, air filter hasn't done anything to fix it.
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Replying to: amgp (Feb 23, 2009 7:51 am) Squirt carb cleaner under the plenum by the thermostat housing, and see if the idle straightens out. If it does you have your answer. If you have a bad gasket it won't be long before you are leaking coolant into a cylinder or two, and doing some serious damage. May be you already are.
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Replying to: amgp (Feb 23, 2009 7:51 am) |
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Replying to: tuscanskipper (Feb 23, 2009 9:28 am) I sprayed carb cleaner under the thermostat housing, and everywhere else I could see where the plenum attaches to the engine. Unfortunately, it didn't have any effect on the rough idle. Although I'd recently replaced the plugs and wires, out of frustration, I thought I'd try pulling each wire off of each plug one at a time with the engine idling to see if I was getting spark through the wires. Each wire checked out fine (spark was present), but when I pulled the wires from two different plugs, there was no change in the idle (it didn't get worse). So much for Autolite Platinums (that's all that was available locally at the time). I've ordered new Champion Double Platinums, and after they arrive, I'll report back with the results.
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Replying to: amgp (Feb 24, 2009 10:00 am) |
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I wanted to take a min and thank Tuscanskipper for his help with my LHS. I have a 94 model and was having the same problem. It took me several hours with one buddy helping but we were just having fun working on the car. The new manifold gasket made the car run alot better. Up till then, i had replaced the Brake booster. (it was taking vacuum from the manifold) then I replaced the throttle position switch the Idle control valve and the map sensor. they were all about 60-80 dollars a piece at the auto parts store. those 4 things along with the manifold gasket made my LHS run like a dream now.i have a freeze plug leaking anti freeze slowly but still leaking. thanks Tuskanskipper for your help. Any guidance on the freeze plug? Thanks tim
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Replying to: tsurnick (Mar 03, 2009 4:54 pm) I recommend you drain the coolant. Then knock out the leaking frost plug and tap in a new one. Replace the coolant. Do this ASAP, if you don't want to walk!
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Replying to: tuscanskipper (Mar 03, 2009 5:04 pm)
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Replying to: tsurnick (Mar 03, 2009 5:55 pm) The new one has to be tapped home and well seated. It must not be crooked. |
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