F350 question ?
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Junior User
Joined: Dec 2003
Posts: 89
Likes: 1
F350 question ?
I just purchased(11-29) a new 03, SRW F350. The dealer told me that all 6.0s on his lot had been flashed . The truck now has about 600 miles on it and is averaging 17.8 mpg so far. I have noticed a very slight stumble on cold mornings on the 1st hit out of the driveway. It runs great after that , although it doesnt seem as strong as one I test drove back in May 03 . It could be that I have already got used the power. I have several questions maybe someone could help with?= VIN#1FTSW30P33EC85290
#1= Does OASIS show anything being done to this trk. ? flash, injectors, etc.
#2= Does this trk. have the failure prone injectors ?
#3= Does the Oct. flash reduce the HP or TQ from the factory advertised 325/560, or has this been verified ?
#4= Should I wait till next spring for the newest flash and not worry about the minor cold hesitation for now ?
#5= Will aftermarket programmers , exhaust kits , or air filter kits void the factory warranty ?
Thanks for any help.
#1= Does OASIS show anything being done to this trk. ? flash, injectors, etc.
#2= Does this trk. have the failure prone injectors ?
#3= Does the Oct. flash reduce the HP or TQ from the factory advertised 325/560, or has this been verified ?
#4= Should I wait till next spring for the newest flash and not worry about the minor cold hesitation for now ?
#5= Will aftermarket programmers , exhaust kits , or air filter kits void the factory warranty ?
Thanks for any help.
Senior User
Joined: Sep 2003
Posts: 178
Likes: 0
From: Santa Cruz Mts. CA
the engine build date sticker is on the drivers side valve cover up near the firewall [use a flashlight] [it's not the barcoded sticker hanging off the lower edge of the valve cover]
any MFG date post may 03 will have the good C95 injectors
Diesels need to warm up for a bit before they develop full power
cold idle just gets them lubed up [do this for a minute or so prior to driving] it will take a few miles of driving to reach full power.
when cold [low 40's or below] Diesels make all sorts of loud noises and they do shake a bit for the first minute. this is normal. you can try a 10-30 CI-4 oil to see if that helps smooth things out.
don't use synthetic until 10k miles for proper break in of the motor.
if it runs great and the only issue you have is the morning stumble do not get it flashed, you will not be happy with the result.
Chips etc may/will give you a headache when it come to any warranty work [depends on your dealer]
any MFG date post may 03 will have the good C95 injectors
Diesels need to warm up for a bit before they develop full power
cold idle just gets them lubed up [do this for a minute or so prior to driving] it will take a few miles of driving to reach full power.
when cold [low 40's or below] Diesels make all sorts of loud noises and they do shake a bit for the first minute. this is normal. you can try a 10-30 CI-4 oil to see if that helps smooth things out.
don't use synthetic until 10k miles for proper break in of the motor.
if it runs great and the only issue you have is the morning stumble do not get it flashed, you will not be happy with the result.
Chips etc may/will give you a headache when it come to any warranty work [depends on your dealer]
