Question about 1995 Volvo 940

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I have a 1995 volvo 940 non turbo, my issue is the radiator cooling fan will not go on. I replaced the radiator, the thermostat,the ect sensor, the relay and still nothing. We did a bypass on the relay and the fan came on. The car will overheat after warming up awhile. I also noticed the air conditioner is not staying cold now. Is their another sensor for the air conditioner I may need to replace? Im getting really frustrated. Thanks..Dan

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1 Answer

Bill Boyd

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  • Volvo Master
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Check the 2 fuses that are in the circuit
one for the ECT and one for the fan relay

Posted on Jun 30, 2017

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5 Related Answers

roy7777

Roy McShane

  • 109 Answers

SOURCE: 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

Posted on Apr 11, 2009

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motor1258

Mike Butler

  • 6674 Answers

SOURCE: spark plug order mixed up, Do you know correct order?

firing order is 1,3,4,2. Clockwise. #1 on distributor cap is closest to front vehicle. 4 is straight behind it. 3 is to left , 2 is to right.
Standing in front of vehicle.

Posted on Apr 25, 2009

mx5turbo92

mx5turbo92

  • 545 Answers

SOURCE: I need to replace the fuel pump in my 940 Volvo.

Disconnect battery ground strap before beginning to work on the fuel/electrical system. Do not smoke or have anything in the area which can ignite or cause sparks

  1. Drain enough fuel from tank to prevent spilling, no more than 4 gallons (16 liters) of fuel should remain. Use suitable pumping equipment.
  2. Remove floor mat and panel from trunk.
  1. Disconnect wiring harness connector to sending unit. Remove wires from connector.
  2. Disconnect ground wire to sender. Push wires through grommet.
  3. Remove cover for access to tank sending unit.
  1. All models: Disconnect from the fuel tank sending unit:
    1. Breather hose C
    2. Return hose A
    3. Supply hose B
    4. Filler hose D
    5. Wiring harness from clip E
  1. Clean area and unscrew fuel tank sender/pump cap or equivalent. Remove tank sender/pump and seal.
  2. Remove pump from sender/pump assembly.
INSTALLATION
  1. Inspect the pump for damage, feed pump hose and wiring for wear. Replace as needed.
  2. Install new pump to sender/pump assembly.
  3. Install rubber seal in neck of tank. Lubricate inside of seal.
  1. Install fuel tank sender/pump unit. Align it with the moulded joint (arrows) on tank.
  2. Apply rustproofing compound to exposed metal portions of tank sender.
CAUTION : With tape or rubber caps, protect fuel sender openings from overspray.
  1. Torque fuel tank sender/pump lock ring to: 22 ft-lb (30 Nm)
  2. Reassemble components in reverse order. Use tie straps to secure all hoses and wiring.

Posted on Jun 04, 2009

Anonymous

  • 216 Answers

SOURCE: 1994 940 volvo wagon non-turbo. How do I replace the fuel pump?

Under you car,just in front of the main fuel filter,why are you replacing it?

Posted on Jun 21, 2009

Anonymous

  • 1 Answer

SOURCE: Volvo Cooling sensor / fan arent working

My air conditioner or fan turns on when the car gets too hot. It doesn't happen every time but often enough to drain the battery. It is a 2001 Volvo S60 turbo. I don't know where to start.

Posted on Jul 14, 2009

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I have a 1995 Volvo 940. I was about to pull on my yard and it shut off. I tried to crank it and it started and I drove in my yard. The next morn I tryed to crank and it did nothing but spin. I...


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CEL on with PO128 code. Recently replaced radiator and thermostat. No engine cooling issues, had a leaking rad. Checked coolant flow; hot and cold, normal. Was going to replace ECT sensor, but want to...


A code P0128 may mean that one or more of the following has happened:
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  • Leaking or stuck open thermostat
  • Faulty cooling fan (running too much)
  • Faulty ECT Sensor
  • Faulty intake air temperature (IAT) sensor
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  • Verify proper cooling fan operation (check if it's running more than it should). Replace if necessary.
  • Verify proper engine coolant temperature (ECT) sensor operation, replace if necessary.
  • Verify proper intake air temperature (IAT) sensor operation, replace if necessary.
  • If the above items check out good, replace the thermostat

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95 940 non turbo-will crank and fire but will not continue running. I have checked fuel pressure, replaced spark plugs,wires,injectors,fuel filter,fuelpressure regulator. After each component change the...


May have a faulty air/fuel ratio sensor or o2 sensor, throttle body may need adjusting or have a stretched spring or there may be grime restricting air flow so it's flooding it.

Mar 14, 2011 | 1995 Volvo 940

1 Answer

My 1996 Volvo 850 2.4 I5 non-turbo appears to be overheating. I replaced the Thermostat but it still appears to be overheating. How do I troubleshoot to see if it is the radiator or maybe the cooling fans?


first you need to check your cooling fan working you can do so by turning your a/c on if your a/c is working properly/if so turn off a/c and let car sit till overheat and see if fan kicks in.if not possible your fan circuit electrical or sensor related/and also check for air in your system bleed system good check for circulation open radiator cap.

Jan 13, 2010 | 1996 Volvo 850

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How do i cheak for codes


if you take your car to Autozone they can check for codes at no charge.

Dec 28, 2009 | 1995 Volvo 940

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My break light switch is defective


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Oct 04, 2009 | 1995 Volvo 940

1 Answer

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

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1 Answer

Check engine codes


1-2-3* Signal missing to/from coolant temp. sensor Wiring fault to or in ECT sensor;grounds corroded on intake manifold or engine Difficult to start engine when cold Same Same

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2 Answers

95 volvo 940 running rough


Have you checked compression on non firing cylinders? Likely has blown head gasket between these two cylinders if located side by side.

Jun 24, 2008 | 1995 Volvo 940

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