Can anyone tell me proper fuel pressure specs for 2008 5.4L V8 Expedition?
As a bonus, how low should fuel pressure drop with snap throttle test before you’d think there’s an issue?
Suspecting a fuel pump issue with my expedition but trying to confirm with fuel pressure check
Both codes came AFTER all this…
Random loss of acceleration/stall/sputter original problem
Found 300 misfires on cylinder 1, so replaced coil.
Replaced all plugs.
Replaced fuel filter.
Can’t find vacuum leak at first glance but might be hard…I don’t understand if this is related to my...
Update: took to a shop today after driving it for 5 hours without issues, he plugged a scan tool in it and all cylinders were misfiring a good bit. Going to try to replace the spark plugs and see if this resolves it. Optimistic
Thank you for this….I did completely remove the throttle body and cleaned it. I think the part you’re referring to is the idle control value, however I can’t find that on this car and I’m wondering if these models do this electronically or something because I can’t find it to clean or replace
Bought this 08 Expy with 162k on it. Owners were honest in letting me know it had once sputtered after accel at a stop light.
Owned for a month and it did it to me. It lost power for about 10 seconds and fired back up. No engine code.
Mechanic had no solution due to no code they “felt”
it was...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.