Question about 2000 Volvo S40

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Locating and removing the fuel pressure regulator.

I have a Volvo 01 S40 turbo. There are a host of fuel pressure regulators that match the model data. How do I locate it so I can get an accurate match.

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My 2004 volov s40 is having starting problems

It sounds like the fuel pressure regulator diaphragm is broken, causing fuel to flood the engine when first started, then clear up and run fine.This is a common problem. let the vehicle sit for a few hours , then pulling off the vacuum hose to the regulator. Fuel may dribble out of the hose indicating bad regulator.You can also smell the end of the hose for a raw gas smell.

Mar 18, 2013 | 2004 Volvo S40

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My 1995 volvo 850 turbo is hard to start when hot.

Check fuel pressure regulator.
Pull out vacuum line from regulator and see if there any gasolin inside . If there is , it's your problem. Broken diaphragm inside fuel pressure regulator.
Replace fuel pressure regulator.
If not , further diagnostics has to be performed by workshop.

May 27, 2010 | 1995 Volvo 850

1 Answer

I have a 2004.5 S40 2.4i. It is currently

From your codes it sounds like your problem is in the fuel system.
P0171 is air-fuel ratio is lean, malfunction.
P0192 and P0194 is low pressure detected in fuel rail.
So you need to look for leak/s, fuel pressure, fuel regulator, and fuel filter. good luck.

Apr 26, 2010 | 2004 Volvo S40

1 Answer

How do you change a fuel pump regulator in a 2001 Volvo s40?

The fuel pressure regulator is located in the fuel rail, held in by a torx screw.

Release pressure from the system by cranking the car with the fuel pump fuse out, or byt depressing the relief valve on the end of the fuel rail.
Unbolt the regulator/housing assembly, unhook the vacuum hose, and remove the regulator/housing assembly.

Installation is reverse order.

If you need to replace the regulator that is located in the fuel pump, it is not serviceable. Luckily they rarely fail.

Sep 14, 2009 | 2001 Volvo S40

3 Answers

1994 Volvo 940 turbo wont start!!!!!! =[

I am a volvo tech and your problem is fuel pressure ralated and i had same problem in 1995 850 turbo and the fuel pump was the problem and a used one is around 35.00

Apr 11, 2009 | 1994 Volvo 940

1 Answer

Volvo 1.9 TDI 1998 losses power and slugish in performance.

ok, lets try to throw few suggestions

number 1 probably problem with air mass meter
number 2 fuel pressure regulator or electrical solenoid on the high pressure fuel for activating-deactivating third piston

can you please send more info when it looses power etc...

Apr 11, 2009 | 2000 Volvo S40

1 Answer

Volvo 1986 760 turbo fuel injection

At the end of the fuel rail, attached to the front of the engine, is the FUEL PRESSURE REGULATOR. check to make sure that the vacuum hose attached to it is TIGHT. If this regulator is not functioning---replace it.

You may have to do a fuel pressure test to ascertain the correct pump pressure and function of your high pressure undercarriage pump. At lower than OEM pressure, the injectors will not open, even with fuel flowing through the rail.

Mar 04, 2009 | 1986 Volvo 760

1 Answer

2003 VOLVO S40

check your mass meter and air filter

Aug 08, 2008 | 2003 Volvo S40

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