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Ask A. Penland Your Own Question
A. Penland
A. Penland, Ford Senior Master Technician, ASE
Category: Lincoln
Satisfied Customers: 6667
Experience:  ASE Master Certified. ASE Gasoline Engine Performance Certified,Ford Senior Master Technician
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My emissions light came on. Emission control system.

Customer Question

Hi! My emissions light came on
JA: Just to clarify, what are the exact lights you're talking about?
Customer: Emission control system
JA: What is the model/year of your Lincoln?
Customer: Aviator/2005
JA: Are you fixing your vehicle yourself? What have you tried so far?
Customer: No, just trying to figure out why the light came on, I'll be taking it to a repair shop.
JA: Anything else you want the mechanic to know before I connect you?
Customer: No
Submitted: 2 months ago.
Category: Lincoln
Expert:  A. Penland replied 2 months ago.

The yellow check engine light is informing the driver that the PCM (Engine Computer) has detected a problem with the vehicles emission controls and that the trouble codes will have to be retrieved from the PCM with either a code reader or scan tool to diagnose the problem.