Having problems with your 2002 Dodge Dakota Club Cab ?

I have a 2002 Dodge Dakota. 3.9 liter V6. I have been having backfire issues and hesistation problems for a while I have replaced the spark plugs and wires, fuel injectors and o2 sensors. I don't think I have the correct sequence with the plug wires, though. I put them on the way they came off but something doesn't look right and it still backfires. Any solutions?

Posted / edited by AnonymousUser on : 26-10-2020

Answers :

It sounds like timing issues or the spark plug sequence is incorrect. To check the timing, remove the number one spark plug. Place a long screwdriver into the spark plug hole. Rotate the engine by using a ratchet and socket on the crankshaft pully nut (clockwise) and watch the screwdriver. When the timing marks in the crankshaft pully are aligned with "O" or "TDC" (top dead center) the screwdriver should be all the way out of the hole, just inside about 1 or 2 inches. If you rotate the crankshaft just a bit the screwdriver will start to go down, back the pully up to the 0 or TDC mark and the screwdriver will go back up. The is the properly timed engine.
Sometimes the engine will skip a couple of teeth due to a worn timing belt. Replace the timing belt and re-time the engine. Good luck, Jim
I had just such a 3.9 backfire problem. Did the IAC, wires plugs etc.

Put the rear O2 sensor in. No help.

No codes shown.

Then, ONCE a front O2 sensor threw a code. Replaced that. Runs like a top

Not
Repair Help & Product Troubleshooting for 2002 Dodge Dakota Club Cab

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