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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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5 Related Answers

Anonymous

  • 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

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Anonymous

  • 1 Answer

SOURCE: 2000 chevy blazer, truck cranks

Does your battery go dead?

Posted on Dec 18, 2008

Anonymous

  • 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

jagjeffery

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

pippall

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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2002 dodge ram 1500 4x4 4.7l Turns over but won't start put gas in the throttle body an it will start but shut right off getting gas to fuel rail An power to the injectors


It doesnt sound like you have sufficient fuel pressure can you hear the pump run? if so might be a pressure issue, if not probably pump

Apr 11, 2015 | Dodge Ram 1500 Cars & Trucks

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I have a 1999 dodge ram was running but stalled and wont start back has started flooding the plugs with fuel and wont start unless i take the fuel relay out


What is liter size of engine? I don't know what relay you unplugged? Your fuel pressure sounds too high? If you have fuel return line, if it gets clogged, it could cause your fuel pressure to rise.
It is your fuel injector pulse width that controls fuel, If pressure is too high, it could cause a problem. Usually voltage to fuel injector, goes hot with engine cranking. The computer controls fuel injector ground.

Apr 05, 2017 | 1998 Dodge Ram 1500 4WD

1 Answer

98 chevy 1500 starts and then shuts right off have replaced fuel pump and filter ,crank sensor,cam sensor ,oil sen. coil,ign.mod and PCM


On some chevys the oil pressure sending unit closes the circuit to continue the fuel pump to run after start. In the event of a wreck ,the car stops running thus no oil pressure thus turns off power to the fuel pump .A safety to help prevent fires. When you first start the car, the computer turns on the fuel pump for about 20 seconds just enough time to start and allow the oil pressure sending unit to close the circuit to allow it to continue running. when the car car has NO oil pressure or the sending unit fails ,it will start then shut down..as many times as you try to start. replace the oil pressure sending unit and secure a good conection. Dan

Feb 13, 2011 | 1998 Chevrolet C1500

1 Answer

My 1500 series 360 turning over,but wont start. not getting fuel to the injecters. thinking fuel pump.


pour a little gas in to the intake and crank it if it trys to start next thing to check is the fuel pump... this can be done by having another person locate the fuel rail that runs over top of the fuel injectors you will find something that looks like a over sized valve steam for a tire... you can press the little pen in the center if there is pressure you will have gas spray out if not it gas will still come out but at the rate of a trickle while the truck is being turned over... also you can check the pump by listening to the pump in the tank shortly after cranking the engine or just after turning the key to the run position a few times....

Jun 12, 2010 | 1996 Dodge Ram 1500 Club Cab

1 Answer

2004 5.7 Auto 3.55 Quad 242K 1/4 Tank of fuel. After running 75 mph on Interstate for 330 miles pulled off freeway to get something to eat and no restart after 10 minutes. Cranks but will not start....


i am not sure about the 2004 models.[i left dodge in early 2004] but all the previous years had a problem with running out of gas with 1/4 tank reading on gauge. it may be when you parked truck is sitting at a different angle than it was on the road, causing what fuel was in there to drain away from the pump. easy check is to crank engine a coupl of seconds then locate the shrader valve on the fuel rail on intake and depress the valve core [like letting air out of a tire] if air or mostly comes out under a little pressure then you are out of gas also i dont know your tank capacity but if all of a sudden your getting better mileage than before then that would indicate out of gas. a new fuel level sender is needed if out of gas.

May 18, 2010 | 2004 Dodge Ram 1500

2 Answers

99 Ram 1500 4x4 wont start, it will crank and it wants to turn over but doesn't. Thought it might be the fuel line frozen, heated up water and poured on fuel line in engine compartment. When I turn the key...


Check your fuel line pressure-use the schroder valve(looks like a tire valve) on the main fuel rail just before the injectors. If it doesn't spurt out when you press it briefly, you have no fuel pressure. Bad fuel pump-clogged fuel filter? Do you smell gas anywhere like its leaking out somewhere or not getting fire when you crank the starter?
If you DO have fuel pressure, then I would check timing or spark circuits.

Hope this helps.

Jan 04, 2010 | 1999 Dodge Ram

6 Answers

90 chevy 350 with TBI starts but wont stay running changed fuel filter and fuel regulator dont know what next


I have a 90 chevy k1500 350 tbi with same problem! I have traced problem to... after turning on key fuel pump kicks on when u crank it over injectors shoot gas and truck starts! After few seconds injectors stop spraying and truck dies! This can happen many times over and over! Eventually sometimes truck stays running and all is great! I changed ignition module, oil pressure sending unit (which i was told controls gas after vehicle is running) fuel filter, computer, fuel pump relay, I am at a loss now! Hope this helps and hope someone can help me!

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2 Answers

2000 Jimmy running one second and just won't start the next. Will crank but no fire. Changed fuel filter and while doing so turned key and swa fuel pump working.


If no check engine light is on, I would check the ign-distributor cap and rotor, also check the crank and crank sensor. There is also a ign-mod located in the distributor assembly under the rotor. They will fail when hot.

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