What is the condition of the maintenance? At over 100k miles, have your plugs and wires been changed? The way to differentiate original wires from replacements is cylinder #'s are on the original. Sometimes as the wires degrade, they can cause an intermittent stall, typically at low speed. It can only be described as thermal, or radio frequency interference affecting the ignition module. This is not the only potential cause, just a start. When it stalls, is it like the key has been turned off, by that I mean an immediate shutdown, not gradual. Does it start right back up, and seem normal. Does this occur typically after running at highway speeds, say coasting down an off ramp? As far as the idle increase, how severe is it? Could it be due to A/C compressor cycling?
Wednesday, March 17th, 2010 AT 11:23 PM