How do you fix engine misfire in 2001 dodge ram 1500?

Answer 1

Best to start off with hooking it to a scan tool. Verify which/how many cylinders to prevent you from wasting your money on "possible causes". Also there might be other codes that can guide you to the cause( I.E. sensor malfunction). You can perform a tune up, to rule out wires/cap, etc., it Might be time for it anyway. Also check if the plenum gasket is blown. Next would be to check the fuel pressure for a faulty pump/regulator, clogged fuel filter. these would be a good place to start. From there I would start checking compression/leak down. Using these I've found a broken exhaust vavle spring as the cause of a misfire on a sohc v6 explorer. Good luck

Answer 2

First you must find out why it has a misfire. Can be a bad spark plug, plug wire. Can be a bad coil on an engine with coil over plug. Can also be a fuel injector that is not working properly. You can also have a burnt valve, blown head gasket, busted piston, or broken piston ring. Once you find out why it is missing you will know how to repair it. On a 13 year old vehicle I would start by replacing the spark plugs and wires if that has not been done in the last 75,000 miles.