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02' F350 7.3L turbo is getting hot even without a load.

(2002 Ford F-350 Super Duty)
in Maryville, TN on August 07, 2013
02' F350 7.3L turbo is getting hot even without a load. Ihad a superchip programmer on it but returned it to stock and it is still getting up to almost 1200 degrees. I have had a load behind it and it got hot enough for check engine light to come on but go off after a few mins. Help!!!!!!
Displaying 1 answers & 5 comments
Popular Answer
of Greg's Orange Auto on August 07, 2013
i assume you meah exh temp. do you have any eng codes?
on August 07, 2013
DID NOT HAVE ANY CODES WHEN I REMOVED THE PROGRAMMER AND YES THE EXHAUST TEMP.
of Greg's Orange Auto on August 07, 2013
poss restricted exh system, like plugged catt. what is the cooling system temp?
on August 07, 2013
Engine temp is normal. It has 4" exhaust from the turbo out, seems to be flowing fine. How could i check that? The turbo doesn't make any abnormal noises and seems to run and pull fine, boost gauge shows about normal as always. Recently cleaned my k&n air filter changed fuel filter and engine oil after this started and no change
of Greg's Orange Auto on August 07, 2013
poss waste gate actuator. remove frt o2 sensors and adapt a pressure gauge to those whole and read exh back pressure. should be close to zero.
on August 07, 2013
ok thanks i will have that checked and see if thats it. let everyone know in a few days what i find out
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