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1993 Ford F-150 XL 4.9L Pings/Lean
Posted to Ford Driveability on 3/12/2001

Customer complains of "pinging" and check engine light coming on only at highway speeds(60-70).Drove the truck and confirmed spark knock at highway speeds ,A/C on or off ,steady crusie or accelerating. CEL illuminates when problem is happening, then goes out. ...

  Related Documents & Media  1993 Ford F-150 XL

 
Message Closed w/FIX

car Vehicle Data

1993 Ford F-150 XL

VIN IFTEF15Y2P
Engine4.9 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
SymptomsPings/Lean
OccursHot, Cruise

Trouble Codes

171rich exhaust bank 1
173Fuel system adaptive limits reached
179lean adaptive limits reached
Message Closed w/FIX

car Vehicle Data

1993 Ford F-150 XL

VIN IFTEF15Y2P
Engine4.9 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
SymptomsPings/Lean
OccursHot, Cruise

Trouble Codes

171rich exhaust bank 1
173Fuel system adaptive limits reached
179lean adaptive limits reached