Lately it seems like my C7 with nearly 200,000 on it has been running bad especially when pulling out from a stop. Its in a 04 Ford F-650. Today it was on high idle and hickuped twice then went back to normal. 30 miles later while driving in traffic I was pulling out from a stop sign and it would cough and sputter real bad as well as a internal "fuel knock" Almost sounded like someone was popping popcorn in the motor.
However, it would go away when you reved it up. I pulled over and shut it off with no help. Stoped at a parts store and bought additive. After the additive it ran fine the rest of the way home? But, I really didnt give the additive enought time to activate so Im not sure if it was just a coincidence. I got it back to the shop and put 2 new fuel filters on. It did it once more after a 45 minute drive and thats it.
Im thinking its a fuel pump going bad. Anyone else have a idea or know how to check them?
I would check your fuel hoses to make sure you aren't sucking air in with the fuel first. Just a little leak can give you problems. Another easy thing to check is your ECM connectors wiggle them while it's running and see if the engine stumbles.
“The good thing about science is that it's true whether or not you believe in it.” Neil deGrasse Tyson
I would check your fuel hoses to make sure you aren't sucking air in with the fuel first. Just a little leak can give you problems. Another easy thing to check is your ECM connectors wiggle them while it's running and see if the engine stumbles.
I was going to suggest the same thing on the fuel lines. You should see a wet spot on the fuel line if it is sucking air.
C7 with fuel issue?
Posted - 08/31/2010 : 11:21:15 PM
