Q: Getting high idle when stopped and transmission taking long to shift on 1999 Ford Expedition

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
All this happened just after a rain storm
Getting No Codes
Hesitating when taking off
New IAC installed
(1) Answer
(4) Comments
Most likely a throttle position sensor/circuit problem. Scanner can check this rather quickly!!
You bet! Also, this problem may NOT set a code but a scanner can read the TPS to see what it is doing. Trans. shift and idle are VERY dependant on the TPS signal!!!
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