Question about 1995 Dodge Ram 2500

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I have a 1995 dodge van which wont start due to no spark I have tested right at the coils sec. I do have injector pulse but no pulse at ign coils primary there is power at primary of coil at first we could get the van to run if we turned the engine over in quick burst from crank to run it wold start when switch was back in the run position ( like there was no spark in crank but there was in run i think you could have cranked all day and it wouldn't have started? ) when it started it started easy and ran great now it dont start at all and no spark can be seen in run or crank poss. help!!!

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A test light connected across the coil primary leads should flash on + off when engine cranks(coil sparks when 12v turned OFF due to collapse of magnetic field).If you get pulsed 12 volts,and no spark from the coil,the coil is bad.If you don't get the pulsed 12 volts,trace back to find out why(the PCM turns the coil ground on and off,12 volts comes from switched IGN source)

Posted on Jan 07, 2012

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Posted on Jan 02, 2017

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ZJLimited

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SOURCE: 2003 FORD TAURUS 3.0 VIN S LOST INJECTOR PULSE,

Are you check right fuel pressure to the check valve on the fuel rail, the spark is there, the timing is correct, it cranks over fine? You'll probably need to do some pinpoint checks to see if the drivers are working. Are you scanned the PCM to know exactly what fault code is stored?

Keep in mind that the EDIS ignition will not function without a valid PIP signal. However, when dealing with computer modules and circuitry, intermittent-type problems are not all that uncommon, so you can't rule out a component just because you know that it works properly some of the time.

Keep us updated.

Posted on Mar 28, 2011

alicantecoli

Colin Stickland

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SOURCE: 1995 f150 4.9 no fuel

look at the fuel rail and on the end is a vacumn operated shut off valve on older cars and i suspect that either the vac pipe is perished or the diaphragm inside the vale is perished

Posted on Jun 29, 2011

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