Question about Rover 75

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Heater problems heater not working properly only luke warm temp gauge normal

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In all modern cars there is a tiny DC electric motor driven gear drive that moves a plastic door that blends heated and cooled air from the AC and the heater core, this is called (interestedly enough) the air temperature control blend door actuator. The motor that moves this door fails because the door starts sticking from warping, most common complaint is no heat but it can be no AC as well. To replace these parts (blend door and blend door actuator) you must remove the entire dash from the car. Always have this problem confirmed by a dealer or qualified repair shop as it is a very expensive repair.

Posted on Nov 05, 2012

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Posted on Jan 02, 2017

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ghost45
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SOURCE: fluctuating engine temp a/c sends out cold air intermittently

Here's the thing. The ECU will shut down AC if the engine temperature is too hot. If the coolant temperature sensor is malfunctioning (lying to the ECU) telling it that the temperature is hotter than it actually is, the computer will turn the AC OFF.

Posted on Sep 12, 2009

motor1258
  • 6674 Answers

SOURCE: Heater is blowing luke warm heat

Double checking, does fun shut off when switched to heat instead of defrost?

Posted on Jan 24, 2009

emissionwiz
  • 76682 Answers

SOURCE: heater does not blow hot air on full heat setting

the problem is caused by the motor that operates the air temp blend door motor in the heating ducts, it blends air between AC and heater core tro give desired outlet temp.

Posted on Dec 12, 2008

  • 366 Answers

SOURCE: 2004 Tahoe Heater Problem

check coolant level ,must be low ,chck for coolant loss

Posted on Mar 05, 2009

SQUIRESXX
  • 486 Answers

SOURCE: 1996 saturn SL heater blows luke warm air,

IF ENGINE RUNS AT RIGHT TEMP SOUNDS LIKE YOU MAY HAVE AIR BLOCK, OR BLOCKED HEATER MATRIX, CHECK FIRST CHECK THE HEIGHT OF THE HEATER MATRIX IN THE CAB , IF ITS HIGHER THAN THE FILLER/EXPANSION TANK. THEN COULD BE AN AIR LOCK, LOOK FOR THE HIGHEST PIPE AND SEE IF THERE IS A BLEED VALVE, IF NOT TAKE BOTH PIPES OFF THE MATRIX FEEDS (TWO PIPES GOING FROM ENGINE BAY TO INSIDE OF CAR, AND FLUSH OUT WITH HOSE TO SEE IF IT IS BLOCKED, AND RECONNECT LOWEST PIPE FIRST AND FILL SYSTYM TILL WATER APPEAR FROM TOP AND RECONNECT RUN MOTOR, AND KEEP TOPIN UP, YOU CAN BUY A COOLENT FLUSH SOLUTION TO CLEAN THE SYSTYM OUT

Posted on Dec 26, 2009

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No heat 98 ford f150


verify heat is in normal range using dash gauge. if its normal then good. if it is below normal, you may have a sticking open thermostat not allowing heat to build up enough for "hot" heat. but usually luke warm heat will be this issue.

If everything is fine with gauge heat, check the hoses going to your heater core with your hands. they BOTH should be hot. If one is hot and another is warm then you have heater core issues. If both are HOT then you may want to check your temp controls. either temp control may not be working or the door that changes temp may be stuck in the cold position... there are many things, but checking the heater core hoses are most likely going to reveal bad heater core.

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2003 windstar blows luke warm air not hot


Temp gauge should read about 1/2 way if the vehicle engine is at proper operating temp. If it is lower it is why you have luke warm heat. If the temp is ok get the climate control system scanned for faults.

Dec 19, 2013 | 2003 Ford Windstar

1 Answer

Fluctuating engine temp a/c sends out cold air intermittently


Here's the thing. The ECU will shut down AC if the engine temperature is too hot. If the coolant temperature sensor is malfunctioning (lying to the ECU) telling it that the temperature is hotter than it actually is, the computer will turn the AC OFF.

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3 Answers

Heater


Likely it has more to do with the door that controlls the airflow. Which should be operated by vacum might check and make sure all thevacum lines are plugged in.

Does the gauge in the car show it warms up?

Feb 24, 2009 | 2001 Ford Windstar

1 Answer

Heater is blowing luke warm heat


Double checking, does fun shut off when switched to heat instead of defrost?

Jan 24, 2009 | 1993 Ford Ranger SuperCab

1 Answer

Heater does not blow hot air on full heat setting


the problem is caused by the motor that operates the air temp blend door motor in the heating ducts, it blends air between AC and heater core tro give desired outlet temp.

Dec 12, 2008 | 2000 Chevrolet Silverado 1500

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