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1998 v70 No start, no pressure at fuel rail, wiring at fuel pump Topic is solved

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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loosenut
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Re: 1998 v70 No start, no pressure at fuel rail, wiring at fuel pump

Post by loosenut » Wed Jul 25, 2018 8:44 pm

Here is one for everyone...cranks no start...runs with starter fluid...turn key...hear fuel pump...yet no pressure in rail...if I remove pump relay and feed pump 12 volts I then will get fuel to rail...switched relays no change....then again sounds like this thread doesn't it?... Only I just installed my pump two years ago....crank sensor?....key not sending signal?
Help?

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Re: 1998 v70 No start, no pressure at fuel rail, wiring at fuel pump

Post by abscate » Wed Jul 25, 2018 8:59 pm

When you get fuel to the rail does it then start?
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loosenut
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Re: 1998 v70 No start, no pressure at fuel rail, wiring at fuel pump

Post by loosenut » Thu Jul 26, 2018 8:36 am

no it still will not start. although after i manually get fuel to the rail since i am by my self i have to stop pumping the fuel start the car.
tonight ill have the little woman to help.

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loosenut
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Re: 1998 v70 No start, no pressure at fuel rail, wiring at fuel pump

Post by loosenut » Sun Jul 29, 2018 2:29 pm

Hello all. Turns out to be a weak fuel pump.
When I turn the key you can hear it come on strong..you can even energize it with 12 volts...fuel will come to the rail.....SLOWLY....not enough to do anything though...replaced the pump with known good one and it runs...
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