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2003 Ford F-150 Lariat 5.4L Poor Idle Quality, Surge, bad spark knock
Posted to Ford Driveability on 5/18/2012 16 Replies

Help! This truck has a bad ping / spark knock while driving and it is up to full temperature. Doesn't seem to do it when cold. Has had induction cleaning performed. Cats seem to be ok and operating normal. Truck still has pretty good power , no noticeable loss...

16 Replies Received (View Replies)

  Related Documents & Media  2003 Ford F-150 Lariat

 
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car Vehicle Data

2003 Ford F-150 Lariat

VIN 1FTRX18L93
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Surge, Bad Spark Knock
OccursHot
Message Closed w/FIX

car Vehicle Data

2003 Ford F-150 Lariat

VIN 1FTRX18L93
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Surge, Bad Spark Knock
OccursHot