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2007 GMC Envoy SLE 4.2L MIL Lamp on
Posted to GM Driveability on 10/18/2011 9 Replies

This vehicle is my wifes. It sets a code P1400 and mitchell has nothing to speak of on the code. I saw a TSB for this code and another code in cold weather start up, but it comes on in the summer heat so dismissed that. Car runs fine but lite is on. Any input ...

9 Replies Received (View Replies)

  Related Documents & Media  2007 GMC Envoy SLE

 
Message Closed w/FIX

car Vehicle Data

2007 GMC Envoy SLE

VIN 1GKDT13S87
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P1400Manifold Differential Pressure Sensor Circuit Malfunction
Message Closed w/FIX

car Vehicle Data

2007 GMC Envoy SLE

VIN 1GKDT13S87
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P1400Manifold Differential Pressure Sensor Circuit Malfunction