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1994 Mercury Grand Marquis LS 4.6L Poor Idle Quality, Surge, MIL Lamp on
Posted to Ford Driveability on 5/23/2013 12 Replies

Hi fellow IATN I have this 1994 Mercury Grand Marquis 4.6L that have been in the shop for a few days now..Surging at idle and DTC 172 & 176.

+First the customer complaint that the car will not go over 25MPH..So find out it was a bad MAF sensor, I replaced wit...

12 Replies Received (View Replies)

  Related Documents & Media  1994 Mercury Grand Marquis LS

 
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car Vehicle Data

1994 Mercury Grand Marquis LS

VIN [No VIN Available]
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / EFI
EmissionsCa Emissions
SymptomsPoor Idle Quality, Surge, MIL Lamp On
OccursIdle, After a Hot Soak

Trouble Codes

172Exhaust lean B1
176Exhaust lean B2
Message Closed w/FIX

car Vehicle Data

1994 Mercury Grand Marquis LS

VIN [No VIN Available]
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / EFI
EmissionsCa Emissions
SymptomsPoor Idle Quality, Surge, MIL Lamp On
OccursIdle, After a Hot Soak

Trouble Codes

172Exhaust lean B1
176Exhaust lean B2