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International Automotive Technicians Network
1999 Mercury Cougar 2.5L Poor Idle Quality, Surge
Posted to Ford Driveability on 4/27/2004 5 Replies

Hello Ford Technicians: Have this 2.5L Mercury Cougar that will surge when the throttle is lightly touched. It does it whether it's in gear or not. Just touch the gas slightly after putting in Drive or reverse and the rpm's will jump up to 2300 rpm (have to ke...

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  Related Documents & Media  1999 Mercury Cougar

 
Message Closed w/FIX

car Vehicle Data

1999 Mercury Cougar

VIN 1ZWFT61L7X
Engine2.5 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Surge
OccursOn Accel, Idle

Trouble Codes

P0402Excessive EGR System Excessive Flow Detected
Message Closed w/FIX

car Vehicle Data

1999 Mercury Cougar

VIN 1ZWFT61L7X
Engine2.5 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Surge
OccursOn Accel, Idle

Trouble Codes

P0402Excessive EGR System Excessive Flow Detected