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1993 Ford Explorer XL 4.0L Poor Idle Quality, Surge
Posted to Ford Driveability on 9/27/2010 17 Replies

Hi Group; This explorer is making me crazy with an idle problem. It sounds to me like it is backfiring into the intake very randomly. I have shorted out each plug wire in an attempt to narrow it down to a single cylinder but no luck. I disconnected the "spout"...

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  Related Documents & Media  1993 Ford Explorer XL

 
Message Closed w/FIX

car Vehicle Data

1993 Ford Explorer XL

VIN 1FMDU32X2P
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFuel Injection / EFI
EmissionsCa emissions
SymptomsPoor Idle Quality, Surge
OccursAlways

Trouble Codes

556fuel pump primary circuit malfuntion
Message Closed w/FIX

car Vehicle Data

1993 Ford Explorer XL

VIN 1FMDU32X2P
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFuel Injection / EFI
EmissionsCa emissions
SymptomsPoor Idle Quality, Surge
OccursAlways

Trouble Codes

556fuel pump primary circuit malfuntion