High RPM at start/ surges
Durango840
06-03-2004, 07:25 PM
My 2000 dodge durango recently started reving up to a little over 2000 rpm when first started or on cold starts. Occasionally it will surge up and down a bit. After it starts it idles back down to 600. Engine is 4.7 magnum 43,000 miles. Any suggestions.
BleedDodge
06-03-2004, 07:52 PM
Might be the throttle position sensor.
Durango840
06-19-2004, 02:04 PM
wouldn't the TPS cause problems all the time? Is there a cold start valve or switch on the 4.7? Perhaps it is causing the engine to run up so high on a cold start. No check engine light is set no driveability problems.
kendq
05-13-2005, 09:14 PM
mine also just started doing the same and it satrted just after my emissions test did you find what causes it
kendq
11-01-2005, 05:09 PM
replaced my TPS, problem solved
Saydee
11-02-2005, 10:27 AM
Had similar issue. Read this and tell me if it sounds familiar... http://www.automotiveforums.com/vbulletin/showthread.php?t=462916
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