Won't start

Tiny
JOHN SEEVERS
  • MEMBER
  • 1994 DODGE DAKOTA
  • V8
  • 4WD
  • AUTOMATIC
  • 193,000 MILES
I have a1994 dodge decoda, I will not start when it is cold, only in warm weather
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Saturday, December 11th, 2010 AT 2:28 AM

5 Replies

Tiny
RASMATAZ
  • MEMBER
Next time it refuses to start warm or cold don't wait for it to make up its mind-do below immediately to determine if its fuel or spark problem

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 away from ground-have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, Do you hear the fuel pump come On when you turn key on? If not check fuel pump fuse and fuel pump relay if so, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, cap and rotor, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it and keep testing
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Saturday, December 11th, 2010 AT 7:33 AM
Tiny
FIXITMR
  • MEMBER
Can you be more specific on what you mean by not start?
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Saturday, December 11th, 2010 AT 7:49 AM
Tiny
FIXITMR
  • MEMBER
And how cold does it have to get before this happens?
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Saturday, December 11th, 2010 AT 7:51 AM
Tiny
JOHN SEEVERS
  • MEMBER
Thanks I will try, I have replace dis. Cap & rotor, spark is good, fuel ok, won't start when temp drops below 50 F. = Acts like timing is off and turns over with a jerking action but when I start the heater in garage it turns over fine and starts. It helps sometime to leave the ignition on for a minute or two.
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Monday, December 13th, 2010 AT 2:30 PM
Tiny
FIXITMR
  • MEMBER
How long does it have to "be in the heated area" before it starts? It sounds like the timing is too far advanced when under 50? Or the amps to crank are not there?
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Tuesday, December 14th, 2010 AT 6:32 AM

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