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How do I make engine run, 4.7L Ram 1500 that has security block on ign.

Engine cranks and has new fuel pump, with good pressure, but no gas going into cylinders, gas going down the throttle body will fire the engine just not going through injectors hasn't ran in two years

Posted by Dennis Andrews on


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David Gust

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  • 181 Answers

Just a hunch - remove the injectors and clean them to insure there is a path for the fuel to get into the intake manifold.

Posted on Feb 18, 2019

Testimonial: "Have ordered new injectors, so if injectors are getting ground from computer they should pulse and engine should run, I'am thinking fuel setting in injectors for two years could cause them to stop up and cut gas flow."


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  • 104 Answers

SOURCE: '88 chevy truck, no spray from injectors

Not sure on that model what controls the injector pulse, but most vehicles either use the signal from the crankshaft position sensor or a cam position sensor. You should use a LED testlight, (NOT A BULB TESTLIGHT!!) and backprobe the injector terminals (with the other lead of the testlight to ground) while cranking the engine over. If the light flashes on one of the terminals, then you are getting injector pulse, and the fault lies elsewhere. If not, then you will need to replace whatver sensor is used to provide engine position signal on that model. Also, check the wiring to that sensor. Some vehicles have problems with the crankshaft pulley harmonic balancer failing and damaging either the body of the crank position sensor or its wiring.

Posted on Nov 02, 2008



  • 1 Answer

SOURCE: 2000 chevy blazer, truck cranks

Does your battery go dead?

Posted on Dec 18, 2008


  • 112 Answers

SOURCE: good fuel pump, engine turns over but wont crank.

if u pour fuel in the throttle body n cranks then goes dead u may want to check your fuel injectors see if they're actually working , u say your fuel pump is good maybe not the injectors

Posted on May 27, 2009


Jeffery Lewis

  • 329 Answers

SOURCE: throttle body injectors not fiering but there is fuel pressure

the injectors are fired thru the engine cotrol module but it gets its signal to fire from the pick-up located inside the distributor if you are loosing injector pulse only the ignition module is bad if you are also loosing spark when you loose injector pulse your pick up is causing the problem if you replace the pick-up i recomend you change the ignition module when doing so because they work together and you have to remove the distributor to change the pick-up

Posted on May 31, 2009


Philip Long

  • 1486 Answers

SOURCE: 1987 chevy S10 engine idle problem

relace the throtle air idle valve.The temp switch will allso cause this problem.

Posted on Jul 19, 2009

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