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1987 Mercury Cougar LS 5.0L Poor Idle Quality, Hesitation, Misfire
Posted to Ford Driveability on 10/13/2003 6 Replies

Ford Tech's

Help needed! Bad engine miss acts like 3 or 4 S/plug Porcelins are cracked. Sure seems like ignition to [...] scope and reg. analog scope show no problem. Vehicle will cover the condition on cruise, will go 65/70 mph. but when accelerating ( bad m...

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  Related Documents & Media  1987 Mercury Cougar LS

 
Message Closed w/Summary

car Vehicle Data

1987 Mercury Cougar LS

VIN 1MEBM60F1H
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / SEFI
EmissionsU.S. Federal
SymptomsPoor Idle Quality, Hesitation, Misfire
OccursAlways, Under Load, on Accel, Idle
Misc.2 Dr. 5.0 Liter W/Dist & F/Injection
Message Closed w/Summary

car Vehicle Data

1987 Mercury Cougar LS

VIN 1MEBM60F1H
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / SEFI
EmissionsU.S. Federal
SymptomsPoor Idle Quality, Hesitation, Misfire
OccursAlways, Under Load, on Accel, Idle
Misc.2 Dr. 5.0 Liter W/Dist & F/Injection