Misfire condition. The check engine light is blinking to tell you it detects multiple misfires. Go to your favorite local auto parts store and ask them to scan your auto for check engine codes. If nothing is seriously wrong, you may get away with just changing the oil, oil filter, air filter, fuel filter, spark plugs and adding some injector cleaner to the fuel tank. If you have other problems, the engine computer will have codes stored (besides misfire code) that will lead you in the right direction to diagnose them.
Get your codes first ,all you need is a cheap code reader.
It may be your emissions system, probably the EGR valve. You need to take it to a mechanic shop for a diagnostic unless you are familiar with it or have the tool to extract the codes en are familiar with the language for this particular system.
SOURCE: 2003 Nissan Altima 2.5S, Check Engine Light Problem.
this problem could be caused by the mass air flow censor, i had the same problem with my car. it is really pricey at the dealer so you might want to check elsewhere for this part. I found one at a scrap yard for 85% less that the dealer and i also got life time warranty, the dealer does not offer any warranty on this part.
SOURCE: 1998 ford expedition blinking overdrive light
This blinking light indicates a problem. You will have to have it scanned for trouble codes to find out
what it is.
SOURCE: Car Shakes When Driving
I had the shaking problem too, had the #5 coil replaced and the shaking instantly stopped.
SOURCE: 2001 ford expedition
the same thing happen to mine twice,and both times it was the coils ,You have 8 total ,one over each spark plug.I replaced them and no more problems.Check with the auto parts so they can tell you which one is bad,hope this helps...
SOURCE: P2104
The p2104 code was set because the PCM had to set the idle speed, the p2112 was set to indicate that your throttle body was stuck closed. You can try to remove the throttle body and clean it, check to ensure that it opens smoothly, check the TPS connector to ensure that it is plugged in correctly, reset the light and if the problem returns, you will probably have to install a new throttle body assembly. Hope this helps, let me know
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