My problem is this: I started my Jeep the other day and it started running real rough. I changed the TPS but no joy. Took it to a repair shop and they told me that 2 of my cylinders were not firing at all. They were going to charge $250.00 to do a tune up. I changed plugs, wires, rotor and cap but no joy. Any help would be appricated.
Crash
Crash