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1999 Ford F-350 Super Duty XL 6.8L Poor Idle Quality
Posted to Ford Driveability on 10/22/2002 12 Replies

This Super Duty F350 with the 6.8 liter V10 has a rough idle (600 rpm P/N) which gets a little more pronounce when put into gear (600 rpm D) but if you rise the RPM up to ‘bout 800, it smooth out…Connected a scanner, NO DTC’s…TPS – 1.01 volt, CTS – 198 F, IAT ...

12 Replies Received (View Replies)

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Message Closed w/Summary

car Vehicle Data

1999 Ford F-350 Super Duty XL

VIN 1FDWX37S8X
Engine6.8 L / 10 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI, Coil on Plugs
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality
OccursAlways, Idle
Message Closed w/Summary

car Vehicle Data

1999 Ford F-350 Super Duty XL

VIN 1FDWX37S8X
Engine6.8 L / 10 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI, Coil on Plugs
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality
OccursAlways, Idle