2006 Crown Vic misfiring
Asked by Guru9P472M Jul 25, 2024 at 11:02 AM about the 2006 Ford Crown Victoria LX
Question type: Maintenance & Repair
I have a 2006 crown Victoria that runs
great but once it gets hot and say 30
minutes running time, it acts like it’s
backfiring and gets no fuel change the
spark plugs the coil fuel pump check
the fuel regulator still having the same
issue any help would be appreciated
3 Answers
beatupchevy answered 3 months ago
The plug wires may be bad , Is there a fuel line getting warm any where on the motor or near the exhaust manifold ? Any customizations ?"
Vacuum leak when it gets warm, injectors going out of specs when warmed up, sensors misreading. What does live data show?
These have plastic intake manifolds that tend to crack. There's also a good possibility that, if the spark plugs have been replaced one or more of the spark plug holes are now striped and need to be repaired using a Helicoil. But judging by your symptoms, I'd suspect a cracked intake manifold first. Jim
