Question about 1996 Honda Civic

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96 civic fuel presure lost

Fuel pump primes then stay on while trying to start, fuel pressure drops as soon as fuel pump turns off. have new fuel pressure regulater, ckecked injectors not leaking

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  • Anonymous Mar 19, 2014

    one of my fuel injectors is leaking, what do i do?

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The fuel pump is designed to run only when the motor is turning, On this model vehicle it is controlled electronically, either through the distributor or the ignition system on the vehicle. I would check the fuel filter for sure, but as far as what is causing the problem a few more questions need be answered from my end.

Posted on Aug 05, 2008

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Posted on Jan 02, 2017

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I turn ignition to ready position. The fuel pump engages and prime's the line. I then start the engine. Engine starts and runs for a max of 15 seconds. As soon as the engine cuts out the fuel pump...


The crank sensor is a good candidate. Pretty common failure on jeeps.
To clarify, the fuel pump is on all time during engine cranking, and during engine running. When the engine cuts off, the pump will also be stopped. But, you will not lose pressure in the fuel lines and fuel rail immediately. The check valve in the pump is supposed to hold fuel pressure in the system for a good time-about 20 minutes. The pressure should bleed off very slowly.

Your fuel pump and fuel system is probably good, but if you really lose prime (or pressure) that quickly, then there is a problem. Best way to check is with a fuel pressure gauge after the engine cuts out. Or, if you have the test port schraeder valve on the fuel rail (looks like a tire valve), you can use a screwdriver to press the center of the valve. If gas squirts out, you do have fuel pressure, prime is not lost, fuel system is good, and you can assume problem is in the ignition circuit, not a fuel problem. Probably the crank position sensor.
Good luck, Casey.

Oct 24, 2013 | 1989 Jeep Comanche

1 Answer

2000 ford explore, wont start. if I prime it, it starts right up and stays running fine. shut it off and it wont start again.


I'd go through, and first check the fuses that go back to the fuel pump, and make sure it is making contact before you have to go chasing ghosts. If that doesn't work, then you might try checking your fuel pressure: prime it, run the engine for a few minutes, then kill it: watch to see if the pressure drops off pretty quick after the fuel pump is off. I'm betting on a ground at the fuel pump, though: the simple act of the vibrating running engine usually provides a decent connection.

Dec 22, 2011 | 2000 Ford Explorer

1 Answer

I dropped the fuel tank to drain old gas.I put new gas in and turned engine to start it didnt start. Should I be able to hear fuel pump if it is working?This is for a 1990 ford e-150 van.Also where the is...


Turn the key to the ON position without starting the engine. You should hear the fuel pump running for 5 seconds if working. This primes the gas to the injectors when doing this. If not heard running check the oil pressure switch for the 12 volts needed to run the fuel pump starts there on that harness. When the engine starts and the oil pressure reaches the normal pressure the computer shuts off that circuit and turns on the fuel pump relay to run the pump. The relay stays on till you shut the engine off

May 08, 2010 | 1990 Ford Econoline

2 Answers

Cranks normal wont start


bad spyder it sonds like

Apr 01, 2010 | 2000 Chevrolet Blazer

1 Answer

99 Honda Civic - Stalls


replace the relay and fuel filter first

fuel pump location and access panel
under the back seat swab

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Apr 16, 2017 | 1999 Honda Civic

1 Answer

Have replaced about all relays and sensors plugs and wires fuel pumps egr valve and solenoid eec relay tps sensor air charge sensor o2 sensor coolant sensor have in my hand knock sensor havent put in yet...


i think i would check the fuel presure regulator and the fuel presure if fuel presure low look at fuel filter if rail not holding presure then look at fuel presure reg and vac conection on it

Jan 23, 2010 | 1986 Ford Ranger 2WD

2 Answers

Gasoline presure


Fuel pressure at the shredder valve should be 62 to 65 PSI with fuel pump primed (engine not running) and will drop about 5 psi when the engine running. Good luck, any other readings the engine will not start.

Nov 13, 2009 | 1997 GMC Yukon

1 Answer

The car wont start after it has been driven for about half an hour or more.. i have to help it some times like give it gas and keep pressing it till it starts


sounds like the fuel pump has an issue,
seen this before with a stuck check vavle in the pump. the fuel pressure relief valve retains pressure.
once the fuel pump primes the line is over presurizes to line and hydro locks the fuel injectors....
the test i use.
drive car around for 10 miles, ending back at your place to work on it.
shut car off and try to restart. it should fail.
Carefully lossen the test screw on the fuel rail.
allow the fuel pressure to lower.
try to restart. if it starts after releasing the pressure then you know the vavle in the fuel pump is not allowing the pressure to release from the fuel line.

Sep 27, 2009 | 1999 Honda Civic

1 Answer

Fuel presure @ idle is 70, reg connected with new regulator


fuel pressure is too high. Should be 40 to 45.
You intermittant no start may be a bad crank sensor or hall effect sensor.

Mar 23, 2009 | 1986 Volvo 740

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