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1992 Mercury Grand Marquis LS 4.6L MIL Lamp on
Posted to Ford Driveability on 9/13/2008 13 Replies

8/28/08

Vehicle runs great. Intermittently sets a check engine light. It seems to always set lean codes. I have seen codes, 172,176,157. Customer says check engine light comes on and goes off at cruise. No sags or stumbles, pings sometimes. I have not duplica...

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car Vehicle Data

1992 Mercury Grand Marquis LS

VIN 2MELM75W5N
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI
EmissionsUS Fed emissions
SymptomsMIL Lamp On
OccursCruise, Intermittently
Misc.Check Engine Light

Trouble Codes

176ego not switching lean exhaust
Message Closed

car Vehicle Data

1992 Mercury Grand Marquis LS

VIN 2MELM75W5N
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI
EmissionsUS Fed emissions
SymptomsMIL Lamp On
OccursCruise, Intermittently
Misc.Check Engine Light

Trouble Codes

176ego not switching lean exhaust