Question about 2003 Jeep Liberty

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Leaking fluid out a port hole above the speed sensor when under load.

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Not breathing building pressure

Posted on Nov 01, 2013

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Need to replace a wheel speed sensor in my 2000 ford focus on the back passenger side


There's a single set screw holding the sensor on the side.
Disconnect the electrical plug first.
Caution: With the sensor out, transmission fluid will leak out. Either drain the transmission fluid before or use a preselected hole plug.
Remove the set screw. Gently pull out the sensor from the transmission.

Apr 12, 2014 | 2000 Ford Focus

1 Answer

Whenever I turned on the air condition in my Ford Explorer 2006, after few second the radiator Fan start running very frequently on high speed making noise. When the fan starts on high the rpm of the...


The cooling fan is supposed to come on when the /ac compressor clutch cycles on, and off when it cycles off.
The idle speed kicks up to compensate for the additional a/c compressor load and the additional alternator load. usually, just the low speed comes on until it hits a much higher temperature.

the system should cycle 4 to 7 times/minute at 79 degrees F.

Here are some things to consider:(The PCM (engine computer) is NEVER defective, don't replace it). I don't think it is the ECT (engine coolant temp sensor) or the Cylinder Head Temp Sensor. Or the VSS or the MAF sensors.


The electronically controlled fan clutch is controlled by the powertrain control module (PCM) based upon requests for airflow to cool the engine, transmission and A/C condenser. If no cooling is required, the electronics permit the fan to spin at a slower speed yielding improved fuel economy.
-------------------------------------------------------------------------------------------------------------------------------
Inoperative or damaged:
  • Electronically actuated fan clutch
  • Electronically actuated fan clutch controller
  • Wiring, connectors, relays or modules
  • Engine Coolant Temperature (ECT) sensor (4.0L SOHC)
  • Cylinder Head Temperature (CHT) sensor (4.6L [3V])
  • Mass Air Flow (MAF) sensor
  • Vehicle Speed Sensor (VSS)
  • ----------------------------------------------------------------------------
If the cause is not visually evident, connect the scan tool to the Data Link Connector (DLC).
Retrieve any DTC Codes (Diagnostic Test Code). Autozone will do for free.

--------------------------------------------------------------

The cooling fan clutch actuator valve controls the fluid flow from the reservoir into the working chamber. Once viscous fluid is in the working chamber, shearing of the fluid results in fan rotation.

The cooling fan clutch actuator valve is activated with a pulse width modulated (PWM) output signal from the powertrain control module (PCM). By opening and closing the fluid port valve, the PCM can control the cooling fan clutch speed. The cooling fan clutch speed is measured by a Hall-effect sensor and is monitored by the PCM during closed loop operation.

The PCM optimizes fan speed based on engine coolant temperature (ECT), engine oil temperature (EOT), transmission fluid temperature (TFT), intake air temperature (IAT), or air conditioning requirements. When an increased demand for fan speed is requested for vehicle cooling, the PCM monitors the fan speed through the Hall-effect sensor. If a fan speed increase is required, the PCM outputs the PWM signal to the fluid port, providing the required fan speed increase.

-----------------------------------------------------------------------------------


May 20, 2011 | 2006 Ford Explorer

1 Answer

I have a leak coming from the under the right side of my car and i am constantly putting power steering fluid and the low brake fliud light came on 2006 ford taurus


you have a power steering leak either the pump itself or one of the power steering hoses has a hole in it.the low brake fluid light is probably the fluid sensor in the master cylinder providing the fluid level is not low.the sensors tend to stick and need to be tapped or pushed with your finger until it frees itself.

Mar 30, 2011 | 1997 Ford Taurus

1 Answer

Leaky transmission fluid. possible reasons?


TRANSMISSION LEAKS COME FROM TRANSMISSION OIL PAN GASKET LEAKING.OIL COOLERS LINES LEAKING.LEAKING AT TORQUE CONVERTER FRONT SEAL.TRANSMISSION SPEED SENSOR SEAL LEAKING.FRONT AXLE SEALS LEAKING AND LEAKING AT TRANSMISSION COOLING LINES TO RADIATOR.CHECK ALL YOU WILL FIND LEAK.IF YOU HAVE FAST LEAK OR PRESSURE LEAK.WITH CAR RUNNING IN PARK EMERGENCY BRAKE APPLIED LOOK UNDER CAR IF YOU SEE FLUID LEAKING OUT IN LARGE QUANITIES.COOLER LINES LEAKING OR TORQUE CONVERTER FRONT SEAL LEAKING.IF YOU HAVE SLOW LEAK THE LEAKS HAS TO BE AXLES SEALS OR PAN GASKET LEAKING OR VSS SENSOR SEAL LEAKING.

Aug 03, 2010 | 1998 Pontiac Bonneville

2 Answers

Small leak of Transmission fluid, changed the o-ring on Tranny speed sensor, still leaking, has 114,000


whats leaking the speed sensor? if so sometimes the plastic portion of the sensor cracks invisible to the eye it must be replaced to fix the leak.

Jan 13, 2010 | Toyota Camry Cars & Trucks

1 Answer

Transmission fluid is leaking from the front of the transaxel above the pan. I know the pan is not leaking. I reached as far as I can and could not feel any fluid from the hose connection. It only leaks...


3 Speed or 4-Speed?
The Transmission Solenoid has a Gasket, which is where it may be coming from. The Solenoid is easy to remove and the Gasket is a one piece, easily to install.
Depending on the type of Transmission:
The Input, Output Speed Sensors; the Neutral Start/Back-up (Safety) Switch; or the PRNDL Switch; are all screwed in. Each may have a rubber o-ring that may be defective causing the leak.
1. Wipe down as much expended fluid as possible.
2. Use a Mechanic Mirror and Flashlight with the engine running to check the culprit!
OR
3. Rollup/Bind-up Paper Towels and wrap it around each individual switch, sensor or at the base of the Solenoid.. Run the engine for a while and pull each towel out individually to check for the fluid. The wet(s) are the culprit(s)
Good Luck and let me know if this was helpful!

Nov 19, 2009 | 1997 Dodge Caravan

2 Answers

Sensor under front of master cylinder is leaking. what is sensor for


The sensor is for the Cruise Control (Speed Control). When you press the brake pedal, the sensor under the master cylinder deactivates the Cruise Control. There is a recall on those sensors for many years of Windstars and other Fords. The sensor leaks, flows down the wires to the connector, brake fluid gets in the wiring harness and causes a fire.

Oct 24, 2009 | 1998 Ford Windstar

1 Answer

I have a leak just above the ac pump on the block of 2000 hyndai sonata it is a manufacturesd hole need assistance on how to fix


It depends on what is leaking. Oil? Coolant? Refrigerant? Air? Gasoline? Brake fluid? Washer fluid? Vodka?

If it's oil or coolant, does it drip to the floor? How much?

If not, or only a little, check the levels of these fluids. If they stay normal or only need occasional additions, forget about it. All cars leak stuff somewhat.

But if a pool of the stuff forms under the car, you got to figure it out and fix it. Start with the above questions.

Jul 15, 2009 | 1992 Audi S4

3 Answers

1965 Ford Mustang 289 overheats at highway speed


your raidator fins my be clogged and also you shouldnt have a clutch fan on it it should be a locked fan!!!! for more air flow!!!

Apr 16, 2009 | 1965 Ford Mustang

1 Answer

Honda Misses.


Pin point the dead hole and check that injector.

Dec 23, 2008 | 1995 Honda Accord

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