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Robert gribbin Posted on Sep 01, 2015
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Fuel not getting to engine. Is fuel pump shot? Fuel sprays when input line released. Engine just stopped while running slow. Cranks good but does not fire.

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Dan Hooper

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  • Cars & Trucks Master 4,523 Answers
  • Posted on Sep 01, 2015
Dan Hooper
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Well, you have made several statements that contradict each other. You say that fuel is not getting to the engine, but it sprays when line is removed....so is fuel actually getting to the engine or not? And you say that it cranks but does not fire....does that mean that the engine does not have spark? If not, I would think that is why it isn't running. You need to determine what your engine does not have that it needs to run. You need to make sure that you not only have fuel at the fuel rail, you need enough pressure for the engine to run, usually 40+ PSI, then you need to make sure there is spark at the plugs, then you need compression. These things also have to happen at the right time and in the right amounts. If you have fuel and spark and compression you need to check your timing.

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My car cranks but will not start RVR GDI mitsubishi

Check all fuses first, then with an assistant, check for spark with a spark tester. if there is spark at 2 plugs, check for fuel pressure at the fuel rail with a gauge. Engines need three things to run, fuel, spark, and compression. If there is spark and fuel, do a compression test, if the timing belt jumped/broke, you won't have any
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A couple of ways to check if you don't have access to a fuel pressure gauge. You should hear a brief hum or buzz from the gas tank area just by turning the key to on, not start. The fuel pump is supposed to turn on for 2 seconds to put pressure in the fuel line and at the injectors. If you hear nothing, the fuel pump may have failed, but check the fuel pump fuse to know it is not blown . To check further, spray a shot of starting fluid into the air intake housing-take off the big air boot from the air filter housing to the engine, and spray inside there into the engine. Now try to start the car. If the engine coughs to life and tries to run for a few seconds, then you know it wasn't getting gas, and that usually is a bad fuel pump or a totally clogged fuel filter. To check the filter, take it off and blow into the outlet side first and see if what comes out looks clean. Then blow from the inlet side and make sure the filter passes air, that it isn't blocked. If the filter was clean, it must be the pump. It is supposed to turn on briefly with key turned to on, and then it runs constantly when the engine is cranking or running. So it has had a good long life since 1993. The definitive test of a bad pump would be to find live power at the fuel pump wire at the gas tank connector while the engine was cranking over. If power there, but no pump working, definitely time for a new pump.
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It have a 1994 crown victoria it ran out of gas I put 5 gallons of gas in it, when I turned the motor over it started right up, it ran for about a minute and a half then quit. I changed the filter, checked...

Air in the fuel line. Take one small wire off the starter relay and turn and hold the key in the start position for a while. Listen for the fuel pump. It will run fast for a second then slow down. When it does, put the wire back on the starter relay and crank the engine.
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First establish fuel pressure at injectors.

After cranking the engine, break open the fuel line at the stainless steel manifold compression joint over the injectors with two wrenches(17mm? ).

Using a shop cloth to stop spray covering everything... you should get fuel comming out under pressure ...allow to stop weeping fuel and clean up any wet fuel.

Close fuel line and crank engine again.

Repeat...if fuel does not spray out pump is not pumping.
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Started cutting out. then quit running. wont start now. fuel filter is good. would it be something besides fuel pump?

Get a spray can of either (starting fluid) While someone cranks the engine spray SMALL amounts of the fluid into the air intake. I stress small amounts a little at a time so you don't blow the engine. If the engine does start I would check to see if you have water in the fuel system first and if not I would check the fuel pump pressure.
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It almost sound like a bad coolant temperature sensor, but that is just a shot in the dark. I did have a 1995 LeBaron that had the same problem, and it had a bad coolant sensor. Is the check engine light on? Are you getting spark when it cranks but won't run? The fuel pressure itself, may have something to do with it, and with fuel pumps, they have a PSI specification, but there is also a volume of fuel amount, such as 1 pint in 15 seconds, I'm not sure what that amount is for you vehicle, but that maybe something to consider. I'd check for any vacuum leaks too.
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Thank you for using Fixya and good luck
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your on the right track,you need three things to run an engine spark fuel and air,you can test your pump another way its primitive take 2+2 carb cleaner get access to your throttle body have someone try starting the engine while another sprays the carburetor cleaner into the throttle body if it runs while you spray and then stops when you dont your fuel pump is the problem.Chrysler is know for this fuel pump problem.
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