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HDGENE, Ford Senior Master/Diesel/Trans
Category: Ford
Satisfied Customers: 5637
Experience:  25 years Auto experience, Ford ,GM, Chrysler, Asian & European
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Ford f250 superduty: i have a 2005 ford f250 superduty pickup

Customer Question

i have a 2005 ford f250 superduty pickup with 6.0 diesel engine. when the engine heats up to operating temperature, a red wrench light comes on in the instrument panel. when this happens, power goes flat with no power. have had turbo checked and cleaned, no help.also tubro exhaust valve cleaned. what is the problem my mechanic can't find?
Submitted: 2 years ago.
Category: Ford
Expert:  HDGENE replied 2 years ago.
Hello no codes are stored? Does the truck have a trans temperature gauge and is the trans overheating?
Customer: replied 2 years ago.
yes it does, but gauge reads nornal
Expert:  HDGENE replied 2 years ago.
And no codes?
Customer: replied 2 years ago.
don't know about codes,i am not mechanic, but my mechanic has engine anaalisis reader
Expert:  HDGENE replied 2 years ago.
Well if a warning light is coming on a code should be stored either in the engine control computer or in the instrument cluster. Typically a wrench light means a transmission fault and not all scanners can retrieve all transmission fault codes.
Expert:  HDGENE replied 2 years ago.
On a diesel application it can be a variety of things based on what code(s) are stored such as an egr cooler issue,oil cooler, egr valve or clogged turbo vanes which that part you have done
Customer: replied 2 years ago.
if transmission is at fault,why does engine loose power? I can stop ,turn engine off, restart and wrench light won't come back on until about a mile further done the road? egr valve bypassed ,turbo has been cleaned twice.
Expert:  HDGENE replied 2 years ago.
All I can tell you is without knowing what code(s) are stored when the wrench light comes on (sorry I confused a red lamp for a yellow trans lamp) t will be hard to isolate the concern. It could also be a problem with a shorted exhaust back pressure sensor, list of issues depending on the code(s) stored