How do you reset check engine light for the 2009 Chevy trail blazer?
Random cylinder misfire
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
The check engine light is triggered by the Engine Control Module (ECM). The ECM receives information from many sensors and determines when to illuminate the check engine light.
Bulb may be blown or has been removed.
It is important to know what the lights on the dashboard mean. To turn off the check engine light a person needs to repair the issues in the engine.
At key on it should come on for a couple second "bulb check".
You have a severe misfire. See related questions below.
The engine will develop a skip and the check engine light will illuminate. The code set in the ecm will direct you to which injector is bad.
To tell you to read the diagnostic codes.
The idle speed is NOT adjustable it is computer controled. Is the check engine light on ? if so then you MUST have the engine scanned with an engine scanner to see what is wrong.
Maybe you should service the engine soon. :P
95 s10 blazer has a miss and check engine light does not come on and exhaust smells gassy what could it be
time for an oil change
Since the check engine light comes on, start by having the code pulled from the computer that is causing the check engine light to come on. Most auto parts stores will do this for free and tell you what might be wrong.
The check engine light would come on and the code stored would refer to a bad cat.
You can if you want to but the vehicle won't pass emissions and the check engine light will remain on.
Use a diagnsotic code scanner to find out why the light is on, repair the problem and if the light doesn't go out after the problem is solved, it should after the engine has been started about 3 times.
YES, It sure can if that is the problem. FIRST you need to have the engine scanned with a OBDII engine scanner to see what CODES the computer has stored.
You can either bring it in to a Chevy dealer or use a programmer/tuner to reset the check engine light.
If the check engine light is blinking that means an engine cylinder misfire has been detected
unhook battery or scan tool will do it
The codes have to be pulled and cleared using an OBD II code reader. If you have an Auto Zone or an Advanced they might do this for free.
i would check to see if the o2 sensors have gone bad they will throw you a check engine light when they go out I have the same problem. It is the transmission. I have a 1999 Chevy Blazer and shortly after the Service Engine Soon light came on, my transmission started "slipping" between 1st and 2nd on an automatic. This only happens when the car gets warm on trips longer then about 15 miles.