Question about 1987 Ford Econoline

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No power to fuel pump and no spark jump power to

No power to fuel pump and no spark jump power to fuel pumps but no spark using a push button start switch jumping the seloind

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Spark comes to the plugs, via through the ignition switch ( in the on position) to the primary side of coil. Possibilities ignition switch, distributor cap , rotor, plug wires, coil, control module. If you remove the coil, control module these can be tested at Autozone for free.

Posted on Jul 13, 2009

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2004 olds alero. new fuel filter and plugs. still wont start.


Did you check for spark at any ot the spark plug wires/ coils? If there is, check for fuel pressure at the fuel rail. Take the port cap off and connect a fuel pressure gauge. If one is not available, with a pocket screw driver deppress valve at port and observe if fuel pours out. If no fuel comes out at all, check your fuel pump circuit. Check for good ground and power at fuel pump connector. If power/ground are ok, replace fuel pump. If spark and good fuel pressure is present, there is the possibility of engine mechanical issues(jumped) timing chain). Also, a plugged catalitic wont let engine start but its very unlikely thats your problem. Start with your basics: spark, fuel, engine mechanical and catalitic.

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Why would my 96' 328i turn over but not fire up? I think that the fuel is not getting through.


No fuel or No sparks...
Can you hear the electric fuel pump run when you start over?
If not, check if the pump recieves power or if filter/hoses are clogged.
Jump power directly to the fuel pump to test the circuit and pump...

Jun 15, 2014 | 2003 BMW 330

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Crown vic 2005 no start replaced fuel pump


check your crankshaft position sensor. fuel+spark+compression+timing=ignition.

Mar 13, 2014 | Cars & Trucks

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Why 92 ford f150 wont start


does it crank over and not fire if so check for spark if tou have spark check the fuel rail for a tire valve looking device if cap is still on remove and press shrader valve while someone cranks engine if you have no fuel spraying out of this in great volume check fuses for fuel pump try swaping fuel pump relay with horn relay if these things do not work look under or just above carpet line on passengerside floorboard in center area near heater box for the inertia switch if red button can not be pushed unplug and jump plug with small wire and crank over if it starts this is your problem if you do not hear fuel pump at this point fuel pump is bad

Apr 01, 2012 | 1993 Ford Ranger SuperCab

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It has no fuel but spark is fine. but if you just jump it it will start


Sounds like a battery issue. Dead battery = no power to fuel pump. You then jump start and it gets power to fuel pump. Replace your battery

Mar 28, 2011 | Buick LeSabre Cars & Trucks

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Replaced fuel pump and fuel filter and relays and the 03 lincoln navigator is still not starting? i have reset the reset button but still not getting power to the fuel pump, please help


Your pump is controlled by the PCM. Recommend you interrogate the relay socket to see if the PCM is trying to turn it on. You could also jump the relay there to see if the truck will start. If you want to jump the relay socket, be careful not to put 12 volts into the PCM. You want to jump the hot terminal to the load terminal, which should have a much lower resistance than the PCM. Please see my tip at http://www.fixya.com/cars/r6022358-relay_check . These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me.

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Sep 27, 2010 | 2003 Lincoln Navigator

1 Answer

1987 RX7 Turbo cranks but does not starts. Was not getting fuel to system so, I jumped pump and works ok but, still not starting. Power in coils, ignition and pump OK. ?????? Need the car ASAP! Any HELP...


I use to run my own switch for the fuel pump. Leave the power off to the pump for about 10 mins. Then power it up then start engine. If this doesn't work use a little starting fluid. If that doesn't start the engine check to make sure you are getting spark to the plug. If you are check the compression.

May 25, 2010 | 1988 Mazda RX-7

2 Answers

I have no power to the fuel pump unless I jump at the diagnosis under hood. I have 12 volts to the circuit opening relay and with the key turned forward I also have 12 volts to and the leg on the co relay....


fuel pump only runs for 3 seconds or when the engine is running. Cycle key with meter hooked up or ear on gastank.. Listen and watch. for a quick 3 seconds.. The spark your experiencing is most likely your touching a ground connection. If you have 3 seconds of power then you prabably need a fuel pump.

Aug 15, 2009 | Toyota Pickup Cars & Trucks

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Starting probems on a 1998 kia sportage no power to fuel pump


Easy to test pump. Takes two people. Disconnect fuel line at carburator and hold end in a catch can. Turn over engine. Does fuel come out. Yes, problem is not fuel pump. No, proplem may be pump or might be clogged fuel line or a fuse. rule out fuses first (cheapest) fuse will be labeled fuel pump. Don't jump your fuel pump while it's in the car. OK to jump it on a test bench but in the car full of fuel is a bad combination with sparks....

May 08, 2009 | 2002 Chevrolet Blazer

1 Answer

Fuel pump will not run


THERE IS A FUEL PUMP SHUT OFF SWITCH(INERTIA) ON THE PASSENGER SIDE KICK PANEL.INSIDE CAB UNDER DASH.IT INTERUPTS POWER TO THE PUMP IF U ARE IN A COLLISION.PUSH THE RED BUTTON ON TOP OF IT.IF THAT DOES NOT WORK CHECK FOR POWER IN AND POWER OUT.NO POWER OUT BAD SWITCH.NO POWER IN OTHER PROBLEM

May 05, 2009 | 1987 Ford Ranger

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