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Hello, this can be a multitude of problems but I will try to give you a list to check and i'm sure you will find the problem. I would check your battery connections and make sure that they are tight and not corroded. Next, I would get your coil packs tested and see if they are working. Autozone offers free diagnostics and this will pinpoint an electrical problem for you. I would also check things like your spark plugs and wires to see if your plugs are fouled or if you if have a bad spark plug wire. You may also need to a tune up and replace your oil and air filters. Bad gas is a possibility and so can be dirty fuel injectors. I would run some injector cleaner through your system and see if that helps. This problem can range from all of the above to a bad fuel pump, I would suggest getting a professional diagnostic done on your car so the problem can be pinpointed and if you find one and do not know how to replace it yourself but you want to save some money I can guide you through the replacement of a part and if anything refer you to a Haynes or Chilton Auto Repair Manaul. I hope this information helps you in your endeavor and I wish the best of luck with this because I am sure you can fix it.
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Put a Fuel Gauge on the Fuel System, see what is happening if the Pressure is dropping below 40 PSI, there is your answer. If it stays, then you have an Electrical issue.
First you must determine if the fuel is stopping or the spark is stopping..If the fuel is stopping this could be a computer problem.. If the spark is stopping then it could be the IGN Module in the distributer. or any nomber of sensors. Squirt a little fuel directly into the Throttle body on the intake manifold.. If the truck runs longer its probably loss of fuel.. Do this several times to make sure, be careful and only use a small amounty of fuel.. you do not want a fire.. RE: Spark: Take a plug wire and an old plug..put the wire on the plug.. hold the plug against a good ground .. have someone crank the engine .. does the plug stop firing? The engine dies.. and will not restart for a minuet or so.. during this "no start" time do the plug test. If the plug will not fire during this time take the module out and take it to Orillys Auto parts.. They can test it.. really expensive part. Don't replace until you know it is BAD..
well you narrowed it down to a fuel problem. not sure about your model, but most cars have a fuel pressure regulator on the fuel rail to reduce un needed pressures. that could possibly be bad. its cylinder in shape and has a vacuum hose connected to it. check the hose and that unit.
Alright, i have a 1987 Toyota 4x4. it has a 22RE full injected motor..it was able to run, but it was running rich, and idling pretty eratic..and then now..it only starts up..and dies. after like 5seconds.
Try the pick-up coil that is under the distributer cap.Remove the cap and rotor button then remove the plate that is under the rotor button.Next you need to take off the relucter wheel that is in the way so you can take out the bolts and remove the pick-up coil.
The fuel pressure should be 60 to 65psi in your system with the engine not running and fuel line primed, (ignition key's to the run position). Once engine is running the fuel pressure should drop by 5psi, change the fuel filter and recheck the fuel pressure at the shredder valve. it's known for the fuel pump to fail when the gas tank runs low or out of gas, the pump will end up burning it self out since the gas is what keeps the electric fuel pump cooled. The other thing to is putting gas through the top of the throttle body to start the engine on the SEFI is a NO NO, well a BIG NO NO. it's been know for the gas in the intake to catch fire and burn up the poppet valve in the injection system causing the replacement of the fuel injection system. Keep me posted and good luck, be gald to help you get your truck running again for the july 4th. OH and it was not mentioned but did the fuel filter get replaced???
i can tell you its not the fuel pump.if you smell fuel then the pump is working right,you may have a weak crankshaft sensor though which would keep it from starting and running. but its definately not the fuel pump maybe you have water in your gas
Won't idle or won't run at all? Can you get it to drive down the road at all?
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