1999 Cadillac DeVille 4.6L Excessive Emissions,
Came in with P0440 and failed emissions, HC. Found stuck closed purge valve and cracked gas cap seal. New gas cap and purge valve, ran Service Bay Test, passed. Found worn plugs and wires. Customer has Autolite Platinum AP104 plugs installed, unknown wires. Fo...
Summary posted 6/5/2012
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Vehicle Data1999 Cadillac DeVille
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Message Closed w/Summary
Vehicle Data
1999 Cadillac DeVille
VIN | 1G6KD54Y0X |
Engine | 4.6 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / SFI |
Emissions | OBD-II Compliant |
Symptoms | Excessive Emissions, |
Occurs | Always |