My truck is firing, the fuel pump is working and the filter has been changed. the truck is turning over but not getting fuel. what can be the problem?
If the engine does have good compression and fuel pressure, and it does have spark out to the spark plugs (spark plugs are not carbon fouled), and the engine will crank over but it will not start, then the engine most likely does not have an injector pulse and the fuel injectors are not letting fuel into the engine.
The most common reasons for that to happen are a loose or dis-connected computer ground wire, a blown ECM fuse, a faulty distributor, because that is where the signal is generated that the ECM (Engine Control Module) uses to time the fuel injector pulses, the ECM itself is faulty, or there is a wiring problem between the ignition module inside of the distributor and the ECM, or a wiring problem between the fuel injector assembly and the ECM. Also, a problem with the MAF (Mass Air Flow) sensor could prevent the fuel injectors from letting enough fuel into the engine. If you can spray carburetor or brake cleaner (highly flammable only will work) into the intake manifold through a dis-connected vacuum line, and then start the engine, then the problem is definitely a fuel delivery problem.
I do believe that the answer to your problem will be found in the information that I have given you, or at least it will point you in the right direction. I hope that this information will help you to figure out exactly what the problem is, and let me know if I can be of any further assistance.
CHECK FUEL INJECTORS FUSES IF FUSES GOOD PROBLEM COULD BE IN THE PCM SINCE IT CONTROLS THE INJECTORS.
SOURCE: 1993 chevy truck with 350 engine will turn over
Check the crank and cam sensor. If the magnetic pickup in any of these sensors are bad it will not send a signal to the computer for the correct spark in timing sequence. If they are very old and never been replaced I would replace these also for they do get weak from age and the heat from the engine. Magnets do lose their power from heat generating through them you know
Testimonial: "I will definitely give it a shot....that is something that I haven't tried yet. Thank you very much!!"
SOURCE: the truck died,it will fire
CAN THE FUEL INJECTORS FROM A 8 CYLINDER 1990 FORD F150 TO A 6 CYLINDER 1990 F 150
SOURCE: 1999 dodge ram 3500 cummings turbo diesel will not start.
Diesel engines fire on compression alone (usually 400psi).The Truck may have air trapped in the fuel system.When you perform any fuel system repair on a diesel it is going to take alot of cranking to get the air out. You can take the breather loose and shoot a VERY small amount of starter fluid in the intake and it should start. Do not use starting fluid much as it can damage the engine. Good Luck.
SOURCE: 2000 Jimmy running one second and just won't start
Need to check the fuel pressure at the shredder valve, there should be 60 to 65psi to have the fuel injectors to work. The shredder valve is at the back of the throttle body on the drivers side at the fuel line, and you can get the fuel pressure gauge as a loner at Auto Zone where you can also get the step by step instructions to replacing the fuel pump. Note. Do not try to start the engine with gas down the throttle body, it's been know to catch fire in the manifold causing the injector valves to melt which = big $$$$ to replace. Good luck and hope this helps, and check all the fuse also. You never know, it could be as simple as the ECM fuse going bad. Keep me posted be glad to help you get your jimmy running 100% again
SOURCE: fuel pump fuse out?
I also own a GMC Sierra and have personally replaced the fuel pump three times so far. A fuel pump can go without notice and I would say that yours at 160,000 miles is very likely the problem. It couldn't hurt though to spend about $15.00 to put in a new Fuel Pump Relay first...you could get lucky and have it solve your problem. Hope I helped.
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