Question about 2003 Dodge Dakota Club Cab
Last week when I turned the key, nothing for about 2 seconds, then the truck would turn over. Yesterday, I turned the key and the truck would just turn over but not start (no delay). I can hear fuel pump (and smell gas in carburetor), battery is 100%... I'm guessing it's not getting a spark, plug/wires only 2 years old. Any suggestions?
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Posted on Jan 02, 2017
First of all let's explain how the spark gets to the plugs. There is a crankshaft position sensor and a cam sensor. They are what determines when to fire the coils and injectors. The crank sensor is located on the passenger side on top of the bellhousing, the cam sensor is the pickup plate in the distributor. As the engin turns the send refernece pulses to the computer which grounds and ungrounds the ignition coil causing it to discharge and send voltager from the secondary coil wire to the center tower in the distributor cap. The rotor button recieves the voltage and distributes it to the 6 towers (1 for each cylinder) If you say you're getting spark from the rotor that tells me the primary side of the ignition system is working, and the secondary side is working into the distributor cap. I'd check for spark out of the plug wires at the plugs. Pull a wire and insert a #2 phillips screwdriver into it, hol the shaft of the screwdriver aprox 1/8"(no more) from the exaust manifold and observe the spark as someone turns over the engine. You should see a nice blue spark. If theres spark, spray a little gum cutter in the throttle body an crank it, if it fires you have a fuel problem. Install a fuel pressure gauge on the schrader valve on the fuel rail and observe it as you crank it. If theres no fuel pressure maks sure there's fuel in the tank, if so climb underneath and beat on the bottom of the tank with a rubber hammer, the pump may be going bad, sometimes you can jar them and make them run.
Posted on Aug 24, 2009
HEY! I JUST changed my camshaft sensor and crankshaft sensor yesterday and I had the EXACT same problem. Now it starts right up for me perfectly, BUT I now have ANOTHER issue. The Engine seems to have lost all power, it will hardly move when it is put in gear, I'm lucky if I can go above 5MPH!
But yea, if your check engine light is on, turn your key(don't try to start it) back and forth 3 times, once you have turned the key the third time, you SHOULD get a code you can look up in the repair manual. The code will either be a readable code: ei P01684, which is the code for battery disconnection, or your check engine light will flash a series of times, stop, then flash again. Depends on your dashboard. If you have the electronic mileage meter, you will get the readable code. If you are unsure of how to perform this very simple home diagnostics test, you can also RENT the actual plug in tester from AutoZone or Advanced Auto Parts. I hope this helps you, I figured my problem out the hard way ei MECHANIC= EXPENSIVE!
Posted on Sep 09, 2009
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