1996 Dodge Caravan coils 1&4 no fire

Tiny
BOFU
  • MEMBER
  • 1996 DODGE CARAVAN
  • 191,510 MILES
Van died, would not start until I unhooked battery and hooked it back up, top speed on getting it home was 10 mph. Got it home and checked wires plugs and coils found that the coil that sends spark to 1&4 was not firing so I got a brand new coil pack and new plugs (upon checking the wires found no issue with them) so new coil pack and spark plugs installed and I have the same problem got it to autozone there code deal read p0351 so I checked wires from coil pack to the pcm and they all where good, map cam and crank sensors working. So im out of ideas what the issue is any help would be greatly appreciated thank you
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Monday, September 23rd, 2013 AT 7:41 PM

3 Replies

Tiny
CARADIODOC
  • EXPERT
When you have an engine running problem, please list the engine size. There's six possibilities and they use three different ignition systems. Did the engine stall while you were driving or did it fail to start after it had been stopped for a while? Now that you disconnected the battery, you will likely have to hold the accelerator pedal down 1/4" to get the engine to start and stay running. We can solve that later with a real easy fix.
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Tuesday, September 24th, 2013 AT 12:20 AM
Tiny
BOFU
  • MEMBER
Oh sorry its a 2.4 And it died while driving. Oh and no issue with gas pedal so far
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Tuesday, September 24th, 2013 AT 12:28 AM
Tiny
CARADIODOC
  • EXPERT
Sorry to ignore you for so long. E-mail system got changed by my provider, ... Again.

You may have misunderstood my comment about the gas pedal. If the engine died while you were driving, that is not the issue here but it could be in the future once the problem is fixed. Once the battery is disconnected the idle speed will be too low to get the engine started and / or to keep it running until the Engine Computer relearns minimum throttle. A lot of people don't recognize that for the simple problem it is. They think there's still something wrong.

It may take a while but if you crank the engine long enough the Engine Computer should set a diagnostic fault code. Any that were set got erased when you disconnected the battery. If you get a code related to "cam and crank sync", check for a sheared dowel pin between the camshaft and its sprocket. That will allow the sprocket to rotate a little on the camshaft. That retards valve timing. The computer will shut the engine down before the sprocket turns far enough that the open valves can be hit by the pistons. This applies to the single cam engine.
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Sunday, September 29th, 2013 AT 8:51 PM

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