0
Why would check engine light turn on after replacing spark plugs and wires and air and fuel filters?
Wiki User
∙ 16y ago
IF THE CHECK ENGINE LIGHT PROMPTED YOU TO CHNGE THESE ITEMS THEN YOU SHOULD GET AN ENGINE ANYLIZER FOR YOUR VEHICLE AND CHECK THE CODE FOR THE REASON THE LIGHT IS ON. THE CODE READER CAN BE PURCHASED AT Walmart FOR ABOUT $30 TO $60 DEPENDING ON CAR MAKE AND TYPE OF TESTER. MY GUESS IS THAT IT COULD BE ONE OF THE ELECTRONICS WITHIN THE SYSTEM THAT HAS GONE BAD THAT HAS THE LIGHT COMING ON. YOU WILL NOT KNOW FOR SURE UNTIL IT HAS BEEN TESTED FOR THE CODE. IN ADDITION YOU CAN TAKE IT TO AN AUTO REPAIR SHOP AND HAVE THEM RUN A DIAGNOSTIC CHECK TO FIND OUT WHAT THE PPROBLEM IS FOR YOU AND YOU CAN THEN USE THE INFO TO DO THE WORK YOURSELF. THE COST OF THIS DIAGNOTIC FROM THE AUTO SHOP WILL RANGE FROM $80 TO $120 DEPENDING ON THE SHOP. NO REPAIRS INCLUDED.
Wiki User
∙ 16y ago
Add your answer:
Earn +20 pts
Would replacing the battery trigger the check engine light to come on a 99 Sienna?
My check engine light came on because the terminals were not connected tightly. no. quite the contrary. if you have a "check engine" light on, disconnecting, or in this case replacing the battery will turn it off. you have a different problem.
Does the check engine light come on if the catalytic converter needs replacing?
A failed catalytic converter is one of hundreds of parts that can cause the check engine light to be on.
What do you do if the check engine light comes back on after replacing the speed sensor?
I had all sensors replaced in my 03 Trailblazer and the check engine light stiil comes on. Why?
Why would your check engine light come on after replacing the water pump on my 96' Chevy Lumina?
Replacing the water pump will not cause the check engine light to come on. Either it is a coincidence or you have accidentally disconnected a wire or damaged a sensor somehow.
Would replacing an exhaust cause the check engine light to come on?
Maybe, the check engine light comes on when the computer detects a malfunction and sets a code.Maybe, the check engine light comes on when the computer detects a malfunction and sets a code.
What does it mean if my check engine light does not work in my 1996 caravan?
Basically it means that the bulb needs replacing.
How do you fix evap problem?
If you have a check engine light on, have the codes read. It may be as simple as replacing the fuel cap.
Check engine light wont go on at all on your 1989 Mercedes 190 e 2.6?
This car is 23 years old and it may very well be the check engine light bulb is blown and needs replacing.
Why is the check engine light constantly on in 2000 Chevy suburban?
it could be a short or anti-pollution devices filters etc. check the vacuum on the charcoal cannister. 65;
If engine is damaged will check engine come on?
Check engine light will come on for various reasons. The o2 sensors could be one of them. If your belt breaks the light will come on and the engine will over heat. I mentioned the o2 sensor because when it comes on for this reason some people have had that light on for years without replacing the sensor.
Why replace the fuel tank pressure sensor?
If it is bad, replacing it will help with the vehicles emissions and put out the check engine light.
Will check engine light go off after I drive awhile since it came on after the battery was changed?
Replacing the battery should not have triggered the check engine light. The check engine light comes on when there is a problem with the emission system. Saying that, I would drive it for a while to see if the light does go out. If the light does not go out have the ECU scanned to retrieve the trouble code. Then use this code to diagnose the problem.
