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2000 Mercury Cougar 2.5L Misfire
Posted to Ford Driveability on 10/18/2004 8 Replies

When vehicle is cold runs fine no bucking. When reaches operating temp it starts to act up. All components checked out ok fuel pressure good [...] good. May be cats but i did a back pressure test and showed 0 on the guage.

8 Replies Received (View Replies)

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Message Closed w/FIX

car Vehicle Data

2000 Mercury Cougar

VIN 1ZWFT61L3Y
Engine2.5 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sefi
EmissionsNot OBD-II Compliant
SymptomsMisfire
OccursUnder Load
Message Closed w/FIX

car Vehicle Data

2000 Mercury Cougar

VIN 1ZWFT61L3Y
Engine2.5 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sefi
EmissionsNot OBD-II Compliant
SymptomsMisfire
OccursUnder Load