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Getting high idle when stopped and transmission taking long to shift

(1999 Ford Expedition)
in El Paso, TX on September 12, 2013
All this happened just after a rain storm
Getting No Codes
Hesitating when taking off
New IAC installed
Displaying 1 answer & 4 comments
Popular Answer
on September 12, 2013
Most likely a throttle position sensor/circuit problem. Scanner can check this rather quickly!!
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on September 12, 2013
Thanks for reply .... will be checking that
on September 12, 2013
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!!!
on September 13, 2013
Thanks for the HELP, it was the TPS
You guys are GREAT!!!!
on September 13, 2013
Glad to help!
Thanks for the reply.
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