Question about Volvo S40

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2001 Volvo S40 transmission problem

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 54 Answers

SOURCE: belt routing diagram 2001 volvo s40 1.9l turbo

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Posted on May 26, 2009

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  • 2 Answers

SOURCE: Where is the ambient temp sensor located on a 2001

Go to Matthew's Volvo Site and search under "ambient temp sensor" I posted detailed instructions and pictures of how to fix this. Enjoy

Posted on Jul 04, 2009

Testimonial: "Good info, thanks"

  • 580 Answers

SOURCE: 2001 volvo s440 1.9t

Volvo Radiator, Thermostat and Sensors Your cooling system's temperature controls include all coolant temperature sensors, Volvo thermostat, Volvo radiator or expansion tank cap, cooling fan(s) and fan clutch (if equipped). These cooling system parts function primarily independent of the engine but control the engine either through cooling or by sending control signals to your Volvo's electronic systems.
The Volvo thermostat is a spring-loaded valve that opens and closes based on the temperature of the coolant flowing through it. A high temperature reading followed by a drop to normal temperature (or a continuously low temperature) is a common first sign of a sticking Volvo thermostat. However, many other conditions may cause these symptoms, so you need to know how to eliminate each possibility.
The Volvo radiator or expansion tank cap is also a spring-loaded valve reacting to system pressure. It serves to maintain proper system coolant level at predetermined pressures. It must always be replaced with an exact replacement cap with the same pressure setting. Never use other caps except for short-term emergencies!
A belt-driven fan blade for pulling air through the Volvo radiator is usually on the Volvo water pump pulley and should have a fan clutch to control it. The fan clutch allows the fan to turn with the belt at low engine speed and "free-wheel" at higher speeds. A bad fan clutch either doesn't allow the fan to spin at low speed (overheating in traffic) or doesn't allow it to free-wheel at high speed (potential overheating on highway or reduced gas mileage).
An electric fan can be either by itself (usually front-wheel drive) or auxiliary (used with a mechanical fan). Both types are controlled via a temperature sensor - in the Volvo radiator or upper Volvo radiator hose or on the Volvo thermostat or Volvo water pump housing. This sensor is usually an on/off type switch with a fixed temperature setting. (Some vehicles may have 2-3 settings for multi-speed fans.) This sensor is commonly called an "auxilliary fan switch".
Other common temperature sensors are: 1) gauge sender (variable output); 2) warning light sender (on/off type); 3) lambda and/or fuel injection sensor(s) (variable to control fuel injection settings); 4) thermo-time switch (cold start valve control). Your Volvo may have other sensors as well.
Temperature control is critical to both performance and emission control. Unfortunately, this system is the most difficult to troubleshoot without proper equipment and diagrams. It's even more difficult with computers that adjust timing, idle speed, vacuum and fuel delivery automatically to make up for potentially faulty temperature sensor signals.
Maintenance of your cooling system sensors is virtually impossible since there's nothing really to "maintain". Keeping them clean both internally (coolant replacement) and externally (engine cleaning) is the best way to ensure trouble-free driving. Checking and replacing all parts at the factory-recommended time or mileage limits helps as well

Posted on Jul 23, 2009

Murphybanton
  • 2004 Answers

SOURCE: Is the extended warranty a good value on a 2001 Volvo S40

No, not at all.

Posted on Sep 05, 2009

Testimonial: "Thanks for the quick response - one year on the warranty is $1990, so we will passs on it."

  • 333 Answers

SOURCE: how do you change a fuel pump regulator in a 2001

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.

Posted on Sep 14, 2009

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1 Answer

Volvo s40 engine mount


Which one? There is one at the front of the engine by the timing belt, one at either end of the cross member that runs from under the radiator to the base of the fire wall and one at the rear of the transmission. I have had to replace all of them on my 2000 S40

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Check for any fault codes in the engine and transmission. Very possible bad vehicle speed sensor-VSS.

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Remove the transmission pan,clean it & the magnet,
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No change there since the 1940's
To be specific & watch-- go to You Tube Video
I would go to a trans shop & avoid the mess of doing
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Click on the following free direct Link. It has the Timing: Belt and Mark Diagrams for your 2001 Volvo S40. Plus additional Instructional and Directional Diagrams.

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!

http://www.2carpros.com/car_repair_information/year/2001/make/volvo/model/s40/2001_volvo_s40_timing_belt_diagram_marks.htm

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take your v5 to the dealers and they will give you the code for free.

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there is a transitorized swith under passenger side dash right by the transmission hump there is a connector that goes into the duct work that is probable shorted out and supplies ground to one side of the blower motor. new part costs about $ 80

Nov 11, 2009 | 2003 Volvo S40

1 Answer

My Volvo is overheating and mixes the engine oil with the coolant, however,there's no sign of coolant and oil mixture in the engine, only in the radiator and coolant lines. The oil cooler is also clean....


the oil that you are seeing may be transmission fluid if its an automatic,the transmission lines go through the radiator for cooling.if the radiator fails in that section ,it could be leaking into the antifreze,or you have a blown head gasket

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