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Ron, ASE Certified Technician
Category: Ford
Satisfied Customers: 23001
Experience:  23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
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5.4 1999 3/4 ton 4x4 ... brothers truck ...runs great in

Customer Question

5.4 1999 3/4 ton 4x4 ... brothers truck ...runs great in startup and cool weather ...on a hot day 100 plus this thing will be running fine ..then idle will drop from 950 to 500 transmission wont pull engine wont rev or pull itself under dash relays under radio area starts going nuts clicking on and off ..this continues until key is turned on and off about 5 times finally clears takes off and runs fine for a few miles and does it again... been to several so called mechanics nothing ... theres no codes so they dont know.. fuel pump ..timing chain and gears several sensors only does it when it gets really hot.. anybody have any input.. he loves his truck ..but im clueless too ..ive gotta try and see if anyone else has had this thanks..
Submitted: 2 months ago.
Category: Ford
Expert:  James replied 2 months ago.

When the idle drops does the engine run rough or you just get all of these warning lights?

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