2003 Chevy Trailblazer Service Engine Soon Light Flashing

I have a 2003 trailblazer.

2003 chevy trailblazer service engine soon light flashing. If the light is not flashing check the gas cap. There will always be trouble codes associated with the check engine light blinking. Here are the most common issues that end up causing the check engine light to flash. If the service engine soon light is flashing it means the computer has detected an engine misfire with the potential of catalytic convertor failure.

Shelly lighting july 4 2018. The trouble codes don t even necessarily mean that there is an engine problem. Autozone coded it p0300 misfire. 2003 chevy trailblazer service engine soon light flashing chevrolet 2003 trailblazer question.

2003 chevy trailblazer ext started car this morning and it stalled. Various warning lights can illuminate on the instrument panel of your 2003 chevy trailblazer to let you know when the vehicle needs to be serviced or repaired. The check engine light started blinking and remains on when traveling 40 45 mph. When i put it in gear and accelerate the ses light flashes and seems like a vibration or misfire.

Oftentimes if the gas cap wasn t tightened enough the check engine light will display. My service engine soon light came on and this time it is staying on. Blinking check engine light diagnosis. If your service engine soon light is on you ll need to pull these trouble codes to see what is wrong with your trailblazer.

When i first start my 03 chevy trailblazer 4 2l there is ne service engine soon light but idles very rough. Once i am coasting or back to an idle the ses light stays solid. The instrument panel may display lights such as abs for the anti lock brake system check engine service engine and srs supplement restraint system. If the light is flashing take your vehicle in immediately to be diagnosed and inspected a flashing light indicates a serious problem with one of your vehicle s components.

She has had a good tune up new filters etc the light goes off briefly but usually back on within a few starts and stops. Take the vehicle to a mechanic or perform the necessary repairs. Don t just tune it up. I have done all of the cheap and easy fixes.

The engine or check engine light will illuminate on the control panel of your trailblazer when the vehicle needs routine maintenance if there is a problem with its emissions control system or if the computer detects a change in engine performance. Diagnostic of service engine soon for a 2000 gmc sierra 1500. A flashing service engine soon light is telling you that something needs immediate attention. These trouble codes will be able to tell you where to start hunting down the problem.

But follow the obdii codes.