Unplug the posative terminal in your trunk by your spare tire, then push the gas about 3-5 time and plug the battery back in. voila!
It requires a scanner to properly diagnosis a check engine light.
With a scan tool.
Bill Greene
The check engine light on a Chevrolet Colorado can be rest by connecting an OBD II code reader to the vehicle's computer . Each of the codes can then be reset which will turn the associated light off.
There are many sensors that can trip the check engine light to come on.
Fix the cause of the light coming on and the light will reset itself within a few drive cycles.
After repair, you reset with a scan tool.
Have vehicle scanned to determine the problem
gage of temperature go to hot position but is not hot the engine check gages light come on
The 2005 Chevrolet Cobalt is equipped with a timing chain, which is designed to last the lifetime of the engine under normal conditions. Unlike timing belts, timing chains typically do not require regular replacement. However, if you notice symptoms such as unusual noises from the engine or a check engine light, it may indicate that the timing chain is worn or has issues, and a professional inspection is recommended. Regular maintenance and oil changes can help ensure the timing chain functions properly for the life of the vehicle.
There are pages and pages and items that can cause a check engine light. You need to have it checked for codes with a scan tool. After repair light can be shut off with scan tool.
The computer has detected a problem with the emissions system.