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please tell me in this tune up you had new spark plugs put in? if check engine light is on there are some stored codes those will give you the suspect cylinder(s) check to see if you have plug wires if not there will be a coil for each cyl. pass. side of motor starting in the front working to the back or firewall cyls are 1,2,3,4 driver side same front to back 5,6,7,8 codes will be PO301 cyl 1. PO302 cyl 2. etc. get the code find the correct cyl. unplug little connector u will need a 7mm socket to remove the bolt holding the coil in place then pull up on the coil and boot.... if u have plug wires get the code find correct cyl and follow plug wire to coil pack in front of engine there will be two one on each side in front of engine...
it sounds like you need to tune up your vehicle. whenever the service light blinks it usually means you have a miss fire. You can take it to auto Zone to retrieve the code. The code should tell you what cylinder is miss firing.Hope this helps. Please leave comment.
Depending on which part of the dash, if it's the odometer/speedometer back light or air temperature console ( center of the dash ) back light, you need to open and remove the covers and trims around these parts to gain access to small 12v light bulbs, you can easily pull 'em out of the socket and insert the new ones in place.
you can find car light bulbs in Auto Zone or any other car parts dealer shops.
5.4L or 4.6L engine?? Check your coils. Go to autozone or advance auto parts and have them scan the ECU for the check engine light!! Its recommended to replace all 8 COPs(ignition coil over plugs) upon replacing the sparkplugs. These typically go out, especially if the coil boots are cracked. Hopefully this helps
I HAD THIS HAPPEN TO ME A WHILE BACK. I TOOK THE CAR TO A CHECKER AUTO PARTS STORE, AND THEY HOOKED UP A HAND HELD DEVICE UNDER THE DASH THAT READ OUT THE PROBLEM,FROM THE ONBOARD CUMPUTER ( A CYLINDER NOT FIRING) , WHICH I HAD ALREADY FIXED ( I WAS MISSING ON 1 CYLINDER DUE TO WATER THAT GOT DOWN INSIDE UNDER THE SPARKPLUG BOOT .THEY ALSO CAN USE A CODE TO RESET THE LIGHT SO IT GOES OFF ONCE THE PROBLEM THAT THE ONBOARD COMPUTER HAS PICKED UP IS RESOLVED. CHECKER RESET THE COMPUTER AN THE LIGHT WENT OFF. THEY DID THIS FREE OF CHARGE!