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I have a 1989 1721cc petrol renault traffic motorhome and want to know where thr heater thermostat is so that it can be replaced

Can you tell me where the heating thermostat is situated as my heater only blows cold air even when the engine us hot Many thanks

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  • Cars & Trucks Master
  • 695 Answers

Follow upper radiator hose to the engine. You will find the thermostat therein engine. GOOD LUCK FRIEND.

Posted on Nov 12, 2014


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Posted on Jan 02, 2017

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SOURCE: Heater blows cold air when idle

Sounds like you may have a partially plugged heater core. You could flush this out separately, from flushing radiator & engine block. Diconnect heater hoses going to your heater core and clamp off, so not to loose coolant from engine. Now hook up separate hose to one side of heater core pipe and flush out with typical garden hose. Repeat procedure on both heater core inlets. Reconnect original heater hoses and test difference. You may have to add an additional litre of antifreeze. If this don't work i suggest changing heater core. Good luck.........Ron.

Posted on Jan 03, 2009

  • 651 Answers

SOURCE: heater blowing cold air

squeeze the hoses to get any air bubbles out and refill coolant as necesary. are you sure you put thermostat in the right way? may be backwards. also may be your sensor.

Posted on Jan 04, 2009

  • 4 Answers

SOURCE: 2001 pt cruiser no heat

did you check the fluid level by removing the rad. cap? Radiator should be full to top. If Chryslers are low on coolant, the heater will not blow warm air.

Posted on Jan 04, 2009

  • 66 Answers

SOURCE: Truck overheat after thermostat was replaced. Blows cold heat too

Have you checked the coolant to make sure its full.Try this.Run the truck with the radiator cap off and let it warm up.When it reaches normal temps sqeeze the rubber hoses.These hose should be a little hard to squeeze.If they are the thermo and water pump are fine.

Posted on Apr 28, 2009

  • 477 Answers

SOURCE: 1998 Sebring Convertible heater is blowing cold

after engine is warmed up , feel the hoses that go to and come from the heater. if they are not hot , this indicates that coolant is not flowing through the heater core. Could be that the core is all plugged up , ore some cars have a valve that opens or closes the flow. If the hoses are hot , that the problem is that the ducts in the dash that send air to and from the heater plenum are not opening up correctly. They usually work on a vacuum motor.
If you are not sure which are the heater hoses add that to your post , and I will track down the location for your vehicle. The heater hoses are usually about 1 inch in diameter.

Posted on Nov 08, 2009

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