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2007 Chevrolet Monte Carlo SS 5.3L MIL Lamp on
Posted to GM Driveability on 12/23/2013 4 Replies

Hello all. I have this chevy monte carlo 5.3l in my bay that is throwing code p3400 cylinder deactivation system. When driving down the road it will try to go into 4cyl mode and it will kick in and out of it a few times then will not try anymore. If you turn o...

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  Related Documents & Media  2007 Chevrolet Monte Carlo SS

 
Message Closed w/FIX

car Vehicle Data

2007 Chevrolet Monte Carlo SS

VIN 2G1WL16C87
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursGoing Into 4Cyl Mode

Trouble Codes

P3400MDS Rationality - Bank 1
Message Closed w/FIX

car Vehicle Data

2007 Chevrolet Monte Carlo SS

VIN 2G1WL16C87
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursGoing Into 4Cyl Mode

Trouble Codes

P3400MDS Rationality - Bank 1