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1981 Ford F-150 Custom 4.9L Poor Idle Quality
Posted to Ford Driveability on 10/26/2010 3 Replies

On this vehicle I need a good vaccum diagram for the engine vacuum for everything to include the air cleaner, engine ported vac switch,emmission canisters, etc. The air cleaner was lying in the back of the truck and all of the vacuum line were disconnected and...

3 Replies Received (View Replies)

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car Vehicle Data

1981 Ford F-150 Custom

VIN 1FTDF15E1B
Engine4.9 L / 6 cyl / GAS
Trans3-speed Automatic
DeliveryCarburetion / 1 BBL
EmissionsUS FED
SymptomsPoor Idle Quality
OccursIdle
Message Closed

car Vehicle Data

1981 Ford F-150 Custom

VIN 1FTDF15E1B
Engine4.9 L / 6 cyl / GAS
Trans3-speed Automatic
DeliveryCarburetion / 1 BBL
EmissionsUS FED
SymptomsPoor Idle Quality
OccursIdle