Po171-Po174
#21
I had these codes thrown the other day, but i put gas in my truck while running(dumb i know)but it was really cold and the wife would have froze. and the CEL came on right after, but the truck runs fine, just the CEL light came on. could this be the culprit?
#22
Completely agree with jbrew on the motocraft pcv valve, ive tried so many other brands and never got anywhere close to the results i have with the motocraft. My local stores never carried the motocraft though had to order from rockauto which actually is reasonably priced. Plus that elbow on it probably isn't helping any i would change it to the correct one.
Last edited by TheUnforgiven71; 02-11-2016 at 04:06 PM.
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Jbrew (02-11-2016)
#23
Senior Member
Yea coolant runs thru that line, it taps your heater core hard-line that runs from the water pump through the block valley to the heater core.. It's called a cold climate system. Yup, your special.
It may be a Motorcraft valve. If you look on RA, they usually have a pic or it. Great set up! With your idle your engine has, it's most likley working as it should.
#24
Senior Member
That might just be a fluke. Reset the KAM, disconnect the battery for 15. There's a good chance it won't come back.
#27
Senior Member
#28
Senior Member
#30
Senior Member