Question about 2008 Volvo S40

1 Answer

Hard to start

When my 2002 volvo v40 sits over night it hard to start is act like it the gas drains back into the tank and i have to pump the peddle to get it to crank. Do you thank it a fuel pump problem and where is the fuel pump?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Volvo Master
  • 60,769 Answers

U are right about the gas draining back to the tank, the electric fuel pump in the fuel tank has a check valve built into it to prevent drain back, the system should always have pressure, to check this u will need to hook up a fuel press test guage at the test valve on the top of the eng near the injectors, run the engine and shut it down, the pressure should not drop more than 5 PSI overnight.

Posted on Jan 17, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Car has been sitting Need to run.


The old gas will cause hard starting for sure as it is 15 years old but if you don't have very much in the tank you can mix in some new gas.

Oct 23, 2015 | 2000 Chrysler LHS

1 Answer

2002 dodge ram won't start if you step on gas peddle before starting it. What causes this? If you wait a couple of hours it will then start


Fuel injected engines don't need to be pumped before starting, if you do flooding can occur. Make a conscious effort NOT to touch the pedal until after you turn the key to the start position and the engine actually starts.

Apr 04, 2014 | 2002 Dodge Ram Maxi

1 Answer

Wont start after sitting over night when starting have to give gas than it starts 1997 nissan maxima


This problem is often caused by a defective fuel pump pressure check valve, this allows the fuel in the lines and the filter to drain back into the tank, this causes hard starting. The pressure check valve is part of the fuel pump so you must replace the fuel pump to correct the problem, the fuel p[ump is located inside the fuel tank.

Jan 13, 2012 | 1997 Nissan Maxima

1 Answer

1993 Volvo 850 fuel issues


it is the fuel pump for sure. If you can hit the tank and get it to run it is the pump. this drain back (hard start after sitting) is a fuel pump issue as well

Nov 24, 2008 | 1994 Volvo 850

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

390 people viewed this question

Ask a Question

Usually answered in minutes!

Top Volvo Experts

yadayada
yadayada

Level 3 Expert

60769 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Mark Jones

Level 2 Expert

76 Answers

Are you a Volvo Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...