Question about 2006 Cadillac SRX

1 Answer

No heat from heater now

Replaced engine and now the driver's side heat not working. Seems OK airflow, didn't touch the heating system so ??? Airlicked? Plugged now? Passenger side really hot.

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  • brian92861 Mar 27, 2014

    Unless ou have two heate cores, you do not, It is not going to be a bleeding issue. Sounds like a door mix problem, Cable or vacum controlled? Check the diverter door operation.

  • brian92861 Mar 27, 2014

    Because, you have heat on one side, HOT, and cold or none on other.

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  • Cadillac Master
  • 3,679 Answers

Sounds like it could have air lock in cooling system bleed air from system

Posted on Mar 26, 2014

6 Suggested Answers

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Posted on Jan 02, 2017

  • 2 Answers

SOURCE: Air Conditioning

Try changing the lower temp sensor in the air duct on the drivers side. I bought one and never replaced it. before the part arrived I took the lower sensor out and taped it up and put it back under the dash... not in the air duct housing were it belongs. believe it or not it works so well I did not even see a need to change the thing.

Posted on Jan 08, 2009

honeymokey
  • 3113 Answers

SOURCE: Cold AC but weak Airflow---Also Driver side not as cold as passenger

The air doors are controlled by actuators that on of them or so may need replacing.

Posted on May 09, 2009

willard123
  • 1 Answer

SOURCE: Blows A/C out of Drivers Side, and Heat out of Passenger Side

It is the climate control under the passenger part of the dash. it is easy to fix any way it was for me on my 99 deville. Take the cover off and you should see the controller just about under the clove box it is about 3" X 3" has a rod connected to it and a electric connection on the top and 3 little screws holding it on. Just unscrew the screws and unplug the electric connection and unhook the rod.
Just ask for the climate control switch at the Cadillac Dealer the cost is about $160.

Posted on Jun 07, 2009

  • 115 Answers

SOURCE: heated seats

The body control module in this vehicle sees a short in the seat heater system. These vehiucles are typical of the heater wiring shorting out. When you try to use the bad heater the computer shuts off all the heaters.

You will need to install a new seat heater pad.

Posted on Sep 05, 2009

  • 14 Answers

SOURCE: FRONT HEATED SEATS

you need to check the resistance in each of the heated seat elements in the seat. There's a two wire connector under the back of each front seat. The connector should be green. disconnect it and measure the resistance along the circuit going into the seat. if it isnt .1 - .3 ohms, replace the appropriate heated seat element

Posted on Jan 06, 2010

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Your car's heater is a life saver in cold weather. Before attempting to repair your car heater, you should understand how your heater system works. First, on this page is an explanation of how the car heater system functions, further down the page are some pointers on heater system trouble-shooting. To warm the passenger cabin of your car, the heating system makes use of excess heat from the engine internal combustion process. A car's engine, in fact, when in operation produces so much excess heat that if the excess heat is not removed, it would destroy the engine. It is your car's cooling system that removes that dangerous excess heat. Some of the excess heat is released through the exhaust. Most of the excess heat is absorbed by a circulating liquid coolant, which is a mix of water and antifreeze. The heated liquid coolant is carried from the engine through hoses to the radiator, which transfers the heat from the coolant to the outside air. That heat transfer lowers the temperature of the liquid coolant, which is then circulated back to the engine to absorb excess heat again. Whereas the radiator is located at the car front grill, the unit that transfers heat to the passenger cabin is located inside the dashboard. This unit is something of a mini-radiator and is referred to as the heater core. Heated liquid coolant circulates through tubes in the heater core and a heater fan blowing across those tubes, as well as through little fins encasing the tubes, directs warm air through heating vents into the passenger cabin. Because your car's heating system works off of its cooling system, heating system malfunctions are often caused by problems in the cooling system. The heater core in your car is similar to the radiator in the front of your car; in fact it looks like a small radiator. The difference is the heater is mounted inside the car and air is blown through the fins of the core. The heater hoses transfer engine coolant from the engine to the heater core, this allows the heat from the engine coolant to be utilized and warm the passenger compartment. When a heater stops functioning determine what type of failure has occurred to execute a repair. We have listed the most common problems below:
heater_core.jpg
Heater Core
Troubleshooting Procedure
  • Step 1: Check Engine Coolant Level - Most cars have coolant reservoirs with opaque white plastic tanks and measuring lines allowing you to see if the coolant is at the recommended level. Coolant expands when heated, and for that reason, most coolant reservoirs have a Full-Cold and a Full-Hot line. If there is too little coolant in the reservoir, you should be alerted to the possibility that there could be a leak somewhere in your car's cooling system. Remove the reservoir cap and add coolant to the Full-Cold line, if a very short time after you refill the coolant reservoir the coolant level is low, there is a leak in your car's cooling system. Engine coolant is used to heat the heater core and if the vehicle is low on coolant the heater core will stop working. The heater cannot produce heat due to the lack of heat from the engine coolant. Even if the engine is not over heating the coolant level can still be low. Inspect the engine coolant level in the coolant reservoir tank; coolant level should be between the hot and cold marks. Always check the coolant level when the vehicle is cold, preferably over night. Check for engine coolant leaks and repair as needed, then refill with coolant and recheck the system.
    radiator_cap.jpg
    Radiator Cap
  • Step 2: Inspect Heater Control Valve - The heater control valve is used to shut off hot coolant from entering the core when the heater is in the off position. A heater control valve can be actuated by either a vacuum line or a cable from the vacuum heater control valve to the heater core. This hose should be warm; if not the heater control valve is stuck and needs to be replaced. After the repair has been made refill the coolant level and recheck system.
    heater_control_valve.jpg
    Heater Control Valve
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1 Answer

Just replaced thermostat and still no heat and temp gauge doesn't work


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2 Answers

No heat to passenger area


Had a friend with a simular problem, and as it turned out for him was he had climate control heating which means drivers side climate could be set at 72 degrees and passenger side set at 72 degrees or what ever desired temp, when selecting the temp for the passenger side it would always be cold,
as he found out when operating the heater controls the littles doors the direct the airflow were stripped out under the dash, he took it to a dealership and they were able to oder the peices to fix the pivots for the doors.

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1 Answer

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I had the same thing for two winters couldn't get good heat then the HEATER CONTROL VALVE,
up near the master cylinder, cracked and started leaking. I replaced it this summer and now the heater is working like new.

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