What does service engine soon mean on a c4 Corvette?
After all, the light is yellow rather than red, which typically means “proceed with caution” unless the engine performance is so compromised your Corvette can’t proceed. If the Check Engine or SES warning light comes on, glance at the gauges.
What it mean when it says service engine soon?
The service engine soon light means just what it says – that you should have your engine serviced soon. Since the sensors that turn on the service engine soon light are often triggered by a malfunction in the emission control system, the problem could be as simple as a missing or ill-fitting gas cap.
Is there a difference between Check Engine and service engine soon?
The “Check Engine” light is a notification that something is wrong, the range can be anything from a loose gas cap to a faulty ignition coil. The “Service Engine Soon” light indicates that your vehicle is due for its next service maintenance.
What is a SYS light on my 1994 Corvette?
SYS flashing every 15 seconds means a fault code in the CCM (NOT the ECM nor the PCM). Usually it signals a weak battery.
Why is the SES light on on my 1997 corvette?
It took major problems for the 1981 Corvette Check Engine light to illuminate, while the 1997 would illuminate if the fuel cap was loose. Knowing the glitches that affect certain model year Corvettes helps diagnose the cause of the SES light illumination. After many years of repairing C4 Corvettes, a distinct pattern emerges.
What does the yellow light mean on a corvette?
After all, the light is yellow rather than red, which typically means “proceed with caution” unless the engine performance is so compromised your Corvette can’t proceed. If the Check Engine or SES warning light comes on, glance at the gauges.
What does code 32 mean on a C4 Corvette?
After many years of repairing C4 Corvettes, a distinct pattern emerges. If you investigate and ask the right questions, diagnosis becomes easier. 1984 Corvettes have coolant temperature sensor failures (code 14) 1985-1989s have Exhaust Gas Recirculation (code 32) and Mass Air Flow codes 33-34 quite often. 1990-91 Corvettes had the dreaded code 32.
When to seek help for a service engine?
If the system voltage and coolant temperature appear normal, you should be able to make it home and schedule a service appointment. Seek help as quickly as possible if the engine is running poorly or you hear spark knock under acceleration. Spark knock is a death sentence to your engine.