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

All this happened just after a rain storm Getting No Codes Hesitating when taking off New IAC installed

by in El Paso, TX on September 12, 2013
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1 answer 4 comments
ANSWER by , September 12, 2013
Most likely a throttle position sensor/circuit problem. Scanner can check this rather quickly!!
COMMENT by , September 12, 2013
Thanks for reply .... will be checking that
COMMENT by , 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!!!
COMMENT by , September 13, 2013
Thanks for the HELP, it was the TPS You guys are GREAT!!!!
COMMENT by , September 13, 2013
Glad to help! Thanks for the reply.