shakes a idol on 1997 Chrysler Concorde

car shakes at idol when a stop lights ,but otherwise runs fine

by in Cornwall, NY on September 02, 2010
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1 answer
ANSWER by , September 07, 2010
I suggest you take your vehicle to a qualified technician. The are many things that can cause an engine to shake at idle. Let's start with the basics. Since your vehicle is 13 years old, a valve job may be in order. Check spark plugs and ignition wires. Perform a compression test. A cylinder with 10% or more differential in compression will idle rough, but at higher engine speeds appear to be ok. Also, injectors and vacuum leaks must be taken into consideration. Here is a link to repair shops in your area: