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1990 Ford Bronco XLT 5.0L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, TACHOMETER GOES CRAZ
Posted to Ford Driveability on 3/5/2010 19 Replies

suspect we have an electrical problem, but unable to find anything. will run good for a while, then tach will begin to gyrate, engine will miss, pre ignition sometimes occurs. it generally runs like a piece of dirt. more common when warmed up, but happens cold...

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Message Closed w/Summary

car Vehicle Data

1990 Ford Bronco XLT

VIN 1FMZV72X4Y
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI
EmissionsOBD 1
SymptomsPoor Idle Quality, Hesitation, Surge, Cuts Out, Stall, Tachometer Goes Craz
OccursCold, Hot, Cruise, Idle
Message Closed w/Summary

car Vehicle Data

1990 Ford Bronco XLT

VIN 1FMZV72X4Y
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI
EmissionsOBD 1
SymptomsPoor Idle Quality, Hesitation, Surge, Cuts Out, Stall, Tachometer Goes Craz
OccursCold, Hot, Cruise, Idle