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2000 Mercury Cougar 2.5L Surge, Repetitious
Posted to Ford Driveability on 12/18/2007 7 Replies

Unusual surging condition that only occures under moderate load with increasing RPM. The pulses of the surge occures at a rate of twice per second. Scan data shows nothing. Scoped o2 sensors and found going rich/lean in time with surge. Scoped FRP sensor and f...

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car Vehicle Data

2000 Mercury Cougar

VIN 1ZWFT61L0Y
Engine2.5 L / 6 cyl / GAS
Trans5-speed Standard
DeliveryFI / Elec Returnless Fuel
EmissionsOBD-II Compliant
SymptomsSurge, Repetitious
OccursAlways, Cold, Hot, on Accel, 50% Throttle, Steady Increase of RPM
Misc.Xs8ape
Message Closed w/FIX

car Vehicle Data

2000 Mercury Cougar

VIN 1ZWFT61L0Y
Engine2.5 L / 6 cyl / GAS
Trans5-speed Standard
DeliveryFI / Elec Returnless Fuel
EmissionsOBD-II Compliant
SymptomsSurge, Repetitious
OccursAlways, Cold, Hot, on Accel, 50% Throttle, Steady Increase of RPM
Misc.Xs8ape