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1999 Cadillac DeVille 4.6L MIL Lamp on
Posted to GM Driveability on 3/29/2010 9 Replies

Vehicle has Code P1646 Control Vent Solenoid Circuit Problem. When Vehicle first came in we did smoke test and found fuel cap cracked. Replaced and customer drove for several weeks and about 200 miles before light came on again. Smoke test again and ran test o...

9 Replies Received (View Replies)

  Related Documents & Media  1999 Cadillac DeVille

 
Message Closed w/FIX

car Vehicle Data

1999 Cadillac DeVille

VIN 1G6KE54Y1X
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P1646Hydraulic Cooling Fan Control Circuit Low
Message Closed w/FIX

car Vehicle Data

1999 Cadillac DeVille

VIN 1G6KE54Y1X
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P1646Hydraulic Cooling Fan Control Circuit Low