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P80 Fuel tank drop in 30 minutes V70 FWD NA 1998

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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abscate
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Volvo Repair Database P80 Fuel tank drop in 30 minutes V70 FWD NA 1998

Post by abscate »

Pictures to be added, from the 1998 parts car, Clarke

I jacked the car up on left side and got about 1 foot clearance under rear, wheels on

I had previously drained tank to about 1 liter of fuel left.

Removed 5 M6 screws and removed Al plate over pump
Disconnect all electrical connectors going through plate and feed through

Levered off two slide fittings, then pop off two fuel lines.

(Note - if you are sensitive to fuel smell, do this last.)

Open fuel hatch - dig out the large (150mm radius) snap ring in the rubber grommet and free the grommet from the fill neck

Position jack under tank (not needed if empty)

Remove two M8 (14mm hex_ bolts from rear of each strap, tank drops

Release clip 'organizer holding fuel and vapor lines

Remove clamp of vapor line heading forward and remove line (pliers work here, VW style clamp)

Pull tank and fill pipe back as unit.

Elapsed time 30 minutes not including draining. I drained by applying 12 Volts to the pump (red/black wires) T2 connector and running front fuel line into a gas can
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Re: P80 Fuel tank drop in 30 minutes

Post by ZionXIX »

How fast is the fuel pump?
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Re: P80 Fuel tank drop in 30 minutes

Post by markone »

Wow. Maybe you should get on a pit crew? Thanks for sharing.

Would this work on a 98 XC AWD? If so, would this be a good start in a way to replace the fuel sending unit, as opposed to cutting a hole in the floor for access to same??
1997 850 Sedan NA, manual trans, 268k miles
1998 V70XC AWD, turbo/auto 165k miles
1998 V70, NA/manual trans, 351k miles
2005 BMW X3 3.0i, auto, 135k miles
2010 Toyota Highlander AWD, 91k miles
2007 Malibu Response LXi, Ebony/white, 340 hp, 330 hours
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Re: P80 Fuel tank drop in 30 minutes

Post by abscate »

markone wrote: Wed Nov 27, 2019 1:10 pm Wow. Maybe you should get on a pit crew? Thanks for sharing.

Would this work on a 98 XC AWD? If so, would this be a good start in a way to replace the fuel sending unit, as opposed to cutting a hole in the floor for access to same??
No, sorry. This is a major McGilla Gorilla project on an XC due to theRWD and shaft

The above is for a FWD Base V70
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Re: P80 Fuel tank drop in 30 minutes V70 FWD NA 1998

Post by ecbsykes »

*cries in AWD*
2000 V70XC - 300,000 miles as of 11 Aug 2020
Hilton Tune, 16T Turbo, Mototec 3" downpipe, Blue injectors, IPD Short Ram Filter, Snabb Intake Piping & RIP kit, do88 Intercooler, TME Dual Exhaust, HID Projectors, R Panels, do88 Silicone Hoses
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Re: P80 Fuel tank drop in 30 minutes

Post by abscate »

ZionXIX wrote: Wed Nov 27, 2019 12:03 pm How fast is the fuel pump?
I was using a battery charger to deliver about 6 amps to the pump, and I filled a 5 gallon gas can in about 10 minutes, or 2 liters per minute flow
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Re: P80 Fuel tank drop in 30 minutes

Post by wizechatmgr »

abscate wrote: Wed Nov 27, 2019 7:29 pm
ZionXIX wrote: Wed Nov 27, 2019 12:03 pm How fast is the fuel pump?
I was using a battery charger to deliver about 6 amps to the pump, and I filled a 5 gallon gas can in about 10 minutes, or 2 liters per minute flow
Sounds about as quick as an XC can go through gas if one stomps on the gas pedal =P
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Re: P80 Fuel tank drop in 30 minutes V70 FWD NA 1998

Post by abscate »

I’m not sure new fuel tanks are available but replacement fuel tanks have a issue with a new style rollover, or June Valve, that need to be understood

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Re: P80 Fuel tank drop in 30 minutes V70 FWD NA 1998

Post by erikv11 »

Junkyard seems a better source if you ever by chance came across a fuel tank that needs replacing.
'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 145k
'98 S70 NA, 220k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 293k
'06 S60 R, 167k
'99 Camry V6 :shock: 130k
gone: '96 NA 850 210k, '98 NA V70 182k
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Re: P80 Fuel tank drop in 30 minutes V70 FWD NA 1998

Post by abscate »

erikv11 wrote: Fri Nov 29, 2019 9:21 am Junkyard seems a better source if you ever by chance came across a fuel tank that needs replacing.
Even better if buy mine, delivered anywhere in the Northeast except CT. Iowa too.

:D

Only problem with the junkyard route is I hate going under cars on unknown turf.
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