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International Automotive Technicians Network
1987 Mercury Grand Marquis GS 5.0L Surge
Posted to Ford Driveability on 6/22/2001 5 Replies

Dear Techs: Customer complains that the idle at a stop will rev up and eventually come back down to normal idle speed. The car has not done this during my driving and testing. I am sure there is a common cause for this but I also wanted to know if the code 34 ...

5 Replies Received (View Replies)

  Related Documents & Media  1987 Mercury Grand Marquis GS

 
Message Closed w/FIX

car Vehicle Data

1987 Mercury Grand Marquis GS

VIN 2MEBM74F8H
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI
SymptomsSurge
OccursIntermittently

Trouble Codes

34EGR Circuit
Message Closed w/FIX

car Vehicle Data

1987 Mercury Grand Marquis GS

VIN 2MEBM74F8H
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI
SymptomsSurge
OccursIntermittently

Trouble Codes

34EGR Circuit