1993 Chevrolet Suburban 1500 Q&A
1993 Chevrolet Suburban 1500 Question: Service engine soon light
Light comes on after 15 minutes of freeway speeds doesnt come in town under 45mph? - Visitor
If the Check Engine light/Service Engine Soon light illuminates while you are driving, the car's on board computer sees a fault in the engines management system that is causing an excess amount of pollutants to be emitted from your car. This could result in engine damage if left neglected. Some problems that can cause the Check Engine light to stay on may take two "drive cycles' to complete before illuminating the Check Engine Light. The computer sees a problem and looks for an identical set of circumstances to occur to confirm that it has indeed seen a problem before turning on the light. A Check Engine light that continually flashes while you are driving is serious and is a sign that the computer sees a problem that seriously risks damaging the catalytic converter which may result in an expensive repair or even may cause a fire! Diagnostic codes are stored in the vehicle's computer and can be retrieved using a scantool that communicates with the computer in your car. We have in our Repairpal website an encyclopedia with in depth articles about computer, and computer control systems, emission and driveability problems. http://repairpal.com/check-engine-light - patrick mannion
the engine service soon indicated on the lcd panel.
The message light has been on for a day or two. Will replacing the EGR valve fix it?
This happen now a couple times, and always I bring the car to a garage and they fix it. They change out the sensor then the change out a vaccum hose they do a oil change, but now again the light is...
ruff. Service engine soon light flashing. Ran computer scan, results show code #PO302 and PO157. Replaced plugs and wires. Lit...