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Will not start, gas and battery gauge will not work, I am not hearing the hum from the fuel pump before it usually starts. Odometer works fine when I churn the key , but after 5-7 seconds it will go to ''no bus''
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filter is located above the fuel tank. it will have to be lowered enough to gain to it to change. not getting fuel could be poor fuel pressure, check with a gauge should be about 50 PSI. first make sure the pump is working you should hear a humming noise when you turn the key to start. you might have to have someone by the fuel tank with the gas cap off to hear. if you don`t hear it running you can try hitting the bottom of the tank, it may jar the pump enough to start to work. if this works replace the fuel pump.
Listen for the 2 second hum or buzz from the gas tank, when you turn the key to on, not start. The pump should run for about 2 seconds to put pressure in the lines and up to the fuel rail. If you don't hear it, first check the fuel pump fuse, usually in the under hood fuse/relay center. Or you could check for fuel pressure at the testing port-shrader valve- on the fuel rail. If you punch the center valve down with a small screwdriver, gas should try to spurt out. If no pressure, the pump is bad or the wiring to it needs to be investigated. Power flows from the battery to the fuse to the fuel pump relay and then to the gas tank. The relay is turned on by the pcm and allows the relay to pass power on to the pump.
Many parts stores rent or loan fuel pressure gauges to check your fuel pressure. The correct pressure is critical for the injectors to work right. If the car won't start, check fuel pressure and check for spark. Usually gas or spark is the problem.
Try pouring a little gas into the throttle body and starting. If it runs and dies, most likely a bad fuel pump. I already had to put two of them on my 1998 jimmy. Good luck!
If it has not been started in a year, you might want to either drain the old gas out (because gas can go bad) and put fresh gas in and try again, or go to an auto parts store and pick up some fuel treatment/restoration. The treatment will NOT be a permanent fix,but should allow the car to start. Now the bad news. It could be the fuel pump, whci is a hard thing to change. To know for certain if it is the fuel pump, here's what you do:
Get in like you are going to start the car, but leave the driver door open, there needs to be silence.
Turn the key to just before the engine would start (the radio comes on and the AC starts blowing, but the engine is off)
Listen carefully, if the fuel pump is working properly, you should hear a hum coming from the back end of the car by the fuel tank. If you hear this hum, that means that the pump was turned on and primed. If you do not hear the hum, chances are that the fuel pump is shot.
I would recommend changing the gas first before you try to start it again, because if the fuel pump is good and the gas is bad, that bad gas is being shot into your engine.
Hi, it sounds like you dont have any power to the fuel pump or the sending unit, turn the key to the "on" or run position and listen to see if you hear a humming noise. if you do not this means the fuel pump is not working, first check the fuses for the fuel pump. this should be under the hood in the fuse compartment. the battery guage doesnt work because the car is not running and charging the battery and will go up when the car starts. If the fuse is not blown you may have to replace the fuel pump.
Either you burned out the fuel pump relay or you killed the fuel pump or both.
When you put the key in the ignition and turn it to the on position do you hear the pump buzz? If not your right back to where you started except now you know that problem may be before the relay (no B+)
Check for B+ at Relay, then at Pump. If B+ is at Relay and at pump then bypass pump connectors (Fabricate jumper wires and run then from battery to pump)and see if pump buzzes. If it doesn't its the pump replace. it. I normally replace both if the person ran out of gas . Those relays get pretty hot.
Lastly if all of the above is good and car still doesn't start check for residual pressure with a pressure gauge. CAUTION This last procedure you should have a certified ASE Tech perform. Furthermore its a good idea to get the shop manual for this repair.
Your right to think about gas but the fuel pumps fail all kinds of crazy ways. The easy way to cheack to see if its the pump is to listen to the tank ( with your ear right against it ) and turn the key on to here the pump come on. If you don't hear anything and the hearing it'self is OK then with someone trying to start the car bang on the tank to shake it and see if the pump will come back on (sometimes they quit altogether and this won't work) The vehical may start right up. If it does the pump is still bad even thogh its running and may not restart as early as the next ry or even quit while running as it already did to you. Rember evven though the gauge says theres gas there may not be be as someone could have stole it and the gauge got bent during the theif. Do'nt look in with a lit match just cause you saw it on TV. Shake the car with a funnell in the fuel cap and listen for gas slushing around. Nothing or slight your out. Listen for the pump this way as it'll really hum in the funnell even full of gas
if you have engine light on scan with obd 2 scan to retrieve you fault of not starting! gue$$inglis not the way to go! however you fuel pump and a sending unit are on the same train! one piece unit that can be separated once removed from gas tank,however it may be fuel pump or fuel pump relay ect!!! when you turn key on all the way but DON"T crank it do you hear grrr sound for a moment then its gone?in the past couple of days have you had a gurgle hum sound from back seat area inside car while driving?
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