Spark but no start

Tiny
BLUE
  • MEMBER
  • 1993 DODGE
  • V8
  • 2WD
  • 150,000 MILES
I have a 1993 Dodge b250 5.2l 318, It cranks but not starts, I have replaced fuel pump and relay what else could I check?
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Tuesday, December 14th, 2010 AT 6:23 PM

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Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Do below

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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Tuesday, December 14th, 2010 AT 6:47 PM

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