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Chrysler Repair/1999 Chrysler Cirrus: engine cuts-out momentarily


cindydial23 wrote at 2014-03-31 04:19:20
Many answers found on the Internet for this problem description recommend replacing various sensors, including speed, cam etc. Maybe so. But before doing that, I recommend you replace the IGNITION SWITCH. For the 1994 LHS the ignition switch is Autozone part number LS700 and costs $31.00. What is happening is there are several contacts inside the switch and one of more contacts has become worn and pitted. Voltage passes through these contacts to the LHS transmission computer (and elsewhere.) The pitted contacts are occasionally (or what you might call "randomly") starving the computer of voltage and causing the computer to momentary, without warning shutdown. The computer thinks you have turned the ignition OFF!

At highway speeds your symptoms are:

* Car seems to turn off for about 1 second.

* Car makes loud "bang" sound that makes you think you've thrown a rod or something. You wonder how engine can survive whatever is happening.

* Car slows dramatically and suddenly and you jolt forward against your seat belt.

* Dash console shuts down for the duration of the episode -- speedometer, tach, everything goes to zero.

* The event scares the living crap out of you. Drivers on road behind you think you're some sort of nut.

* Car then "restarts" and dash console comes alive -- speedometer, tach and everything else shoots up to correct readings.

* Car then continues as normal until next episode.  

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Roland Finston


Get a Free Fast answer to your repair question about a Chrysler/Dodge/Plymouth car, minivan, SUV, or truck. Problems with electronically controlled engines and transmissions as well as body wiring problems are my specialty. This free troubleshoot advice forum helps you diagnose faults, minimize repair costs or do-it-yourself.

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