I'm thinking TPS (throttle positioning sensor) or crank shaft sensor. Only happens in cold weather while driving down the road. 4.7L 190,000 miles. never had a problem other than water pump and wheel bearing. Been well kept.
Q&A
Ask Your Question2003 Dodge Ram 1500
Question: whys my truck idol up in cold weather while driving, and when started sometimes.
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Answer #1
your.mechanic November 22, 2012, 00:39Reply
MasterYour truck has an Idol?
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Answer #2
ziptie12 November 22, 2012, 07:34ReplyMasterWhen cold it SHOULD go to a 'fast' idle(1500-2000RPM) for maybe a minute or two. Have Idle Air Control valve checked for proper signal and function.
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