Posted by daveyk [173.245.56.73] on Sunday, April 17, 2016 at 22:06:34 :
In Reply to: Exhaust flo,,, Furd not PW posted by Bill in Pa. [108.162.219.139] on Sunday, April 17, 2016 at 21:02:04 :
Hello Bill,
Does the MIL come on or is it on?
There are several ways.
The easiest way is to drop the exhaust pipes at the manifolds and then drive it.
The next would be to check exhaust back pressure by removing the front O2 sensors and take an actual pressure reading.
another way is if you know somebody that has a scanner AND is good with it they can usually tell by the different readings on your F250 and what should be normal. Or if there are codes set/stored can give direction.
HTH
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