2000 Ford F-150 ENGINE MISSING

Tiny
TRITON1
  • MEMBER
  • 2000 FORD F-150
Engine Performance problem
2000 Ford F150 V8 Four Wheel Drive Automatic

wHAT COULD BE THE PROBLEM MY MOTOR STILL HAS A SLIGHT MISS TO IT, I HAD IT TO THE DEALER WITH CHECK ENGINE LIGHT ON DID THE TEST AND #8 CYL NOT FIRING PUT NEW COIL ON LIGHT WENT OUT BUT TRUCK STILL HAD A MISS COULD THIS BE JUST A BUILD UP OF RAW FUEL IN THAT CYL?
ANY IDEA? ANYBODY? ALL NEW PLUGS HAVE BEEN PUT IN ALSO
2000
FORD 4X4
5.4 TRITON
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Thursday, November 27th, 2008 AT 6:55 AM

2 Replies

Tiny
F4I_GUY
  • EXPERT
No it's not leftover fuel. All the fuel is well out of the system.

Personally, I would just go back since they did not do the job properly, unless of course this is an un-related issue. With the vehicle mis-firing I would run a cylinder balance test to determine which cylinder is acting up, then go from there.

When does it mis-fire? Under load? Idle? Cruise?
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Thursday, November 27th, 2008 AT 5:07 PM
Tiny
TRITON1
  • MEMBER
The miss has left, and it came underload. But I think what I was blaming as a miss is somthing else
when I am driving down the road and come to a hill the motor lugs down and starts to jerk it isnt shifting out of overdrive as fast as it should if I use the button on the gear selector and manually take it out of overdrive the truck drops to drive the revs come up and the jerk stops.
Has me puzzled.
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Monday, December 1st, 2008 AT 1:37 PM

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