2001 dodge dakota auto transmission wont go into 4th gear also get a P303 code.
Ok, a P303 means.... Random misfire detected, cylinder #3. As for the transmission problem, I know for a fact that if the PCM feels the engine working too hard, it will deny you overdrive. My recommendation? Change the plugs and wires. BE CAREFUL with the wires, though. If it's a 5.2 or 5.9, the pattern of how the wires are laid out is VERY important. Not just that they're in order, but how they physically set in the compartment. There was a service recall from Chrysler on this, so it should have been taken care of. If so, just replace the wires exactly how they came off. If it's a 4.7, I don't think the layout was such a problem, but on the old Mopar engines, failure to follow the guidelines could result in not just pre-ignition (ping), but detonation (blowing a hole in your piston.) Once you've done all this, completely disconnect the battery (both cables OFF), touch and hold the cables together for at least 10 seconds (MAKE SURE THE CABLES ARE BOTH OFF THE BATTERY!!!!!) to "kill" the ECM's memory, reconnect the battery, reset your clock and radio then give her a drive. Also, get the good wires. The cheap ones are just that - cheap. You'll be replacing them again in about a month. As for the plugs, Champion is OEM, so don't let the register jockey talk you into plugs that cost $5 a piece. Look at the emission decal under the hood - they even put the Champion plug part numbers on there, for us! Too easy :).
Hope this helps!
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