why am i getting spark in only a few plug wires

25

Asked by Oct 07, 2014 at 04:06 PM about the 1994 Dodge Ram 1500 2 Dr Laramie SLT Standard Cab LB

Question type: Maintenance & Repair

I am getting spark to only a few plug wires?coil pack puts out spark,i replaced the rotor bud and pick up coil and still the same.replaced egr valve/transducer.throttle position sensor and still very rogh idle and lots of back firing.help please I'm so stumped.my truck is a 1994 dodge ram 1500 5.9 liter

20 Answers

58,445

Have you checked the cam sensor in the distributor.

25

I replaced it today.

1 out of 1 people think this is helpful.
58,445

May i ask how and when this started,may help me diagnose the problem?

25

just noticed the wires had no spark except for maybe 3 or 4 yesterday when I had my wife try starting the truck as I went from wire to wire . I thought the rotor bud or cam sensor so I replaced them.

25

didn't replace the cap because it looked fine.

58,445

Ok,have you replaced the plug wire,s?

25

no,because when I hook them to the coil pack and turn the truck on they spark.

1 out of 1 people think this is helpful.
58,445

Good to know,,give me a few minute,s to check something,

58,445

Have you checked this,

25

also when it does start it has a sucking air sound where the ias is.

58,445

It is probably drawing air because of misfire.

25

my crankshaft position sensor?no

58,445

This will cause random misfire if bad.

58,445

Is engine light on,and i can only assume it is,have it scanned,it will show if it is bad.

25

I can I tell if it's bad when I pull it?

58,445

You can ohm it,if you have ohm meter,if not take it to local auto part,s store and may be they will check it.

25

I've gone to autozone to have it scanned and they say vthey can't

25

my engine light doesn't come on that I know of but will look.

58,445

But if truck can be drove to part,s store ,it can be scanned to check it without removing it.

58,445

This would be the only other thing that would cause your problem,that you haven,t checked.The only other thing would be is the head has problem,s,and to check this do a pressure check on the cylinder,s to see if you have damage in the motor causing this.

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