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Checking Fuel Process In The XC

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive P2 platform cars sold as model years 2001-2007 (North American market year designations).

2001 - 2007 V70
2001 - 2004 V70 XC (Cross Country)
2004 - 2007 XC70 (Cross Country)
2001 - 2009 S60
2003 - 2007 S60 R
2004 - 2007 V70 R

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Oka
Posts: 364
Joined: 05 Mar 2013, 07:35
Year and Model: XC70, 2001
Location: Anchorage, Alaska
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Checking Fuel Process In The XC

Post by Oka »

About five months ago, I replaced the fuel filter. I used to have hesitation until I replaced the fuel filter. All went well until about two months later, the hesitation started when applying gas as to overtake a car on the highway. It got worse with time. Now, the car won't start.

Any write-up on checking everything 'fuel'?
That is, from the Filter, Injectors, Regulator, Valve, Pump and any other fuel related write-up one might have.
What if the tank is dirty?

Thank you.
2001 Volvo XC70/AWD/Auto/Turbo/146kMiles (Brown)
2001 Volvo V70XC/AWD/Auto/Turbo/144kMiles (Maroon)
2005 Volvo XC90/AWD/V8/Auto 111 Miles (Black)
2006 Toyota Sienna LE/AWD 93K (Green)
--------------------------------------------------------------------------------------
1985 BMW (E23) 735i(US)/AUTO/209K Miles (Parked since 2011)
1997 Mazda MPV/AUTO/4WD/173K Miles (Parked since 2008)
2002 Subaru Outback L.L. Bean/3.0/131K/AWD (Parked since 2017)

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volvolugnut
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Joined: 19 Jan 2014, 09:51
Year and Model: 2001 V70
Location: Midsouth USA
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Post by volvolugnut »

Can you find a way to monitor fuel pressure while driving? Then you could see if fuel pressure drops during these periods of hesitation. This sounds a bit like a dirty and restricted fuel filter, but could be other things. Does it occur at all fuel tank levels or more when fuel level is low? This would indicate the fuel pump has difficulty sucking in fuel and can't maintain enough flow to maintain full pressure. If you have dirty fuel or water in fuel then the filter will suffer. It least with a plastic tank you do not have a problem with rust forming inside the tank, but it could get rust from the storage tanks that you buy from.
I see now you can't start the car, so you will not be checking fuel pressure on the road. I remember now you have other posts about your no start problem. Will it start on ether/ starting fluid? Be careful and don't use too much.
2001 V70 T5, 1986 244DL, 1983 245DL, 1975 245DL, 1959 PV544, multiple parts cars.

Oka
Posts: 364
Joined: 05 Mar 2013, 07:35
Year and Model: XC70, 2001
Location: Anchorage, Alaska
Has thanked: 9 times
Been thanked: 2 times

Post by Oka »

volvolugnut wrote: 27 Sep 2019, 18:04 Can you find a way to monitor fuel pressure while driving? Then you could see if fuel pressure drops during these periods of hesitation. This sounds a bit like a dirty and restricted fuel filter, but could be other things. Does it occur at all fuel tank levels or more when fuel level is low? This would indicate the fuel pump has difficulty sucking in fuel and can't maintain enough flow to maintain full pressure. If you have dirty fuel or water in fuel then the filter will suffer. It least with a plastic tank you do not have a problem with rust forming inside the tank, but it could get rust from the storage tanks that you buy from.
I see now you can't start the car, so you will not be checking fuel pressure on the road. I remember now you have other posts about your no start problem. Will it start on ether/ starting fluid? Be careful and don't use too much.
Though the filter is few about six months old, it could not be that, not if there is dirt in the tank.
I need to start from there to see if it is clogged by any chance. Will do that in a few minutes and will report back.
2001 Volvo XC70/AWD/Auto/Turbo/146kMiles (Brown)
2001 Volvo V70XC/AWD/Auto/Turbo/144kMiles (Maroon)
2005 Volvo XC90/AWD/V8/Auto 111 Miles (Black)
2006 Toyota Sienna LE/AWD 93K (Green)
--------------------------------------------------------------------------------------
1985 BMW (E23) 735i(US)/AUTO/209K Miles (Parked since 2011)
1997 Mazda MPV/AUTO/4WD/173K Miles (Parked since 2008)
2002 Subaru Outback L.L. Bean/3.0/131K/AWD (Parked since 2017)

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