My experience has been that the check engine light is usually coming on due to an emissions issue. I would take it back to Auto Zone and have them check the codes again, and ask them what code they are getting. Then research that code at your local library to find out what it means-most libraries have a suprising amount of make/model specific manuals. It could be something as simple as a clogged air line.
probably a problem with your exhaust system sensor known as the O2 sensor. Many dodge products will turn on the check eng light at a certain mileage then you replace it and have the code reset. Or your car is just running poorly but not poorly enough to notice so the light comes on the tell you to get your engine checked. So go get your engine checked and your codes read at a parts store or garage.
Axle bearings are in the drive axle, other-wise the hub, pull off the wheel, either replace the axle or the hub
OK DAVE LET ME SCHOOL YOU , first let me say that you did a stupid thing , by replacing parts BEFORE YOU EVEN CHECKED THE COMPUTER FOR CODES !!!!!!!!!! you also have a 1994 plymouth , this is a obd1 system , the person who said turn the key on and off 3 times is correct , on and off 3 times and stop at the on position on the 3rd time , count the flashes of the check engine light , will be long flash ( tens ) short flashes (ones ) i .e. 2 long flashes followed by 3 short flashes is code 23 , and so forth , and STOP TAKING ADVICE FROM PARTS PEOPLE AT AUTOZONE , THERE IS NO CODE FOR FUEL FILTER , PLUS ASK ANY OF THOSE GUYS AT AUTOZONE WHAT KIND OF AUTOMOVTIVE DIAGNOSTIC TRAINING THEY HAVE . HERE ILL ANSWER THAT ( NONE ) DAMN YOU PEOPLE PISS ME OFF , YOU HAVE A WARNING LIGHT ON , AND THEN YOU ASK WHAT CAN THE PROBLEM BE , AFTER YOUVE SPENT NEEDLESS MONEY , AND GO TO PARTS PEOPLE FOR AUTO REPAIR ADVICE KEEP SPENDING MORE MONEY , AND WHEN YOU HAVE THE CODE # OR INFO , THEN RIGHT IT DOWN HERE SO PEOPLE CAN HELP YOU , OR DO YOU EXPECT US TO TELEPATHICLY COMMUNICATE WITH YOUR P.O.S.
