Hello, 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.
Thanks
Testimonial: "Haven't tried the sensor switch yet. Will let you know if it works."
Fig. 3.0L Engine Firing order: 1-2-3-4-5-6 Distributorless ignition system
Fig. 3.5L Engine Firing order: 1-2-3-4-5-6 Distributorless ignition system
Fig. 3.0L Engines without DIS Firing order: 1-2-3-4-5-6 Distributor rotation: Counterclockwise
Fig. 3.0L Engines with DIS Firing order: 1-2-3-4-5-6 Distributorless ignition system
Fig. 3.5L Engine Firing order: 1-2-3-4-5-6 Distributorless ignition system
Fig. 3.0L Engine Firing order: 1-2-3-4-5-6 Distributorless ignition system
Fig. 3.5L and 3.8L Engines Firing order: 1-2-3-4-5-6 Distributorless ignition system
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3.8L engine Firing order: 1-2-3-4-5-6 Distributorless Ignition System
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