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tilvin

Heat air coming from down side near foot area

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Guys,

     After a long time. Hope you all are keeping well. As a change this time, I bought a NON-Peugeot car...😀 . Toyota Caldina diesel (CT190). I ran for a week and started developing cough and phlegm. The AC cooling was really poor. Also some burnt smell. So yesterday, I shutoff AC blower completely and lowered the front shutters and ran. Both side from the front bottom, heat air is coming very aggressively....🤣. But there are no any visible uncovered area near the carpet. What can be the problem? How we can fix it? When car is on neutral with AC the RPM is 1200. Is this high RPM causing this heat air? Guys I am getting giddiness symptom also after driving the car for approx 20 kms. How we can identify the root cause of this problem and sort this issue? Please help. The engine is 2C turbo engine.

Thanks.

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Sounds like the fresh air vent is stuck open. It's either that or a rubber grommet on the firewall has come off.

First check if you have the AC set to "fresh air" instead of "recirculate". If that's okay, take the blower motor out and observe the fresh/recirculate flap operation above the motor chamber. As you switch between the modes, the flap should move to open/close the fresh air duct. 

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Thanks Davy. I also suspected and checked the blower box. Fresh air vent has been permanently closed using a card board.... I checked the engine compartment. The insulation is there in place. No any visible rubber parts open. Do I need to check the silencer? Catalytic converter or something?

Sounds like the fresh air vent is stuck open. It's either that or a rubber grommet on the firewall has come off.
First check if you have the AC set to "fresh air" instead of "recirculate". If that's okay, take the blower motor out and observe the fresh/recirculate flap operation above the motor chamber. As you switch between the modes, the flap should move to open/close the fresh air duct. 


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I showed to a silencer shop. They asked to accelerate the engine after putting to a slope. Then visually checked from the bottom and told that no any leaks. Since black smoke came when accelerating asked to show the injector pump to a pump workshop. There was a pump shop close by. I showed to them. They removed the pump and serviced by putting some new parts and re-fixed. Charged me 15K for the job...😂. Now there are no black smoke. Set the RPM to 1200 when AC on and on the gear position "Park". They told can't reduce below due to the engine mounts. They told to replace all four engine mounts. I am still wondering how all four engine mounts went at same time.

But when I drive back the car, still the "Heat air coming from bottom when blower off" is there. What can I do?

I bought the car only few weeks back. Never used a Toyota diesel before...😂. Already spend more than 1 lakhs on suspension work and these. Can any body help me to find a good mechanic who can attend on this engine mount issue? Does recondition mounts available anywhere for 2C turbo engine? Please help.

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The same thing was experienced with a Swift by myself. When I was driving the car from Athurugiriya to Kadawatha throught the Expressway, I noticed a considerable amount of heat waves are catching my feet. Same story...The A/C cooling was very poor. So noticed after some time the compressor doesn’t work at all. Replaced the compressor and everything became normal.

This heat starts to feel when you drive for a few kilometers. Am I correct?

Better to get the AC system checked...I might be wrong, but I guess it’s due to we people are being used for air conditioning while driving and the heat feels so unfamiliar and embarrassing when the AC fails to function. 

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3 minutes ago, alpha17 said:

The same thing was experienced with a Swift by myself. When I was driving the car from Athurugiriya to Kadawatha throught the Expressway, I noticed a considerable amount of heat waves are catching my feet. Same story...The A/C cooling was very poor. So noticed after some time the compressor doesn’t work at all. Replaced the compressor and everything became normal.

This heat starts to feel when you drive for a few kilometers. Am I correct?

Better to get the AC system checked...I might be wrong, but I guess it’s due to we people are being used for air conditioning while driving and the heat feels so unfamiliar and embarrassing when the AC fails to function. 

Thanks for the reply friend. But my case is different. I completely shutoff the blower. So NO air coming from the vents and the AC is fully shut down. Still heat air coming from the foot area from both side. Tomorrow, I am going to bring to a "interior cushion shop" and going to put another floor carpet over the original carpet and see whether we can stop the hot air coming out...😂

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3 hours ago, tilvin said:

I showed to a silencer shop. They asked to accelerate the engine after putting to a slope. Then visually checked from the bottom and told that no any leaks. Since black smoke came when accelerating asked to show the injector pump to a pump workshop. There was a pump shop close by. I showed to them. They removed the pump and serviced by putting some new parts and re-fixed. Charged me 15K for the job...😂. Now there are no black smoke. Set the RPM to 1200 when AC on and on the gear position "Park". They told can't reduce below due to the engine mounts. They told to replace all four engine mounts. I am still wondering how all four engine mounts went at same time.

But when I drive back the car, still the "Heat air coming from bottom when blower off" is there. What can I do?

I bought the car only few weeks back. Never used a Toyota diesel before...😂. Already spend more than 1 lakhs on suspension work and these. Can any body help me to find a good mechanic who can attend on this engine mount issue? Does recondition mounts available anywhere for 2C turbo engine? Please help.

I don’t recommend using reconditioned mounts. There are two ways a mount can loose it’s intended functionality. One is the mileage and we all know that more kms you drive, more wear and tear happens.

Then, the time. We all know that when a car is not used for a long time or do only a very few kms for about 5-6 years, tires are loosing there elasticity, due to being sitting without any movement. So do the mounts, as their rubber compounds starts to harden by the being of time, when they are not being used. When I change the four engine mounts, one seemed completely fine. When I checked it with a new one, there is a noticeable difference between the two. Old one was hardened.

Another experience was when a person I know bought a 2010 January Premio on October 2019, the mounts were in bad condition, even though the car has done only 47,000kms. Mileage was proved by all the service records and emission test reports. When the car was started, you could easily feel the vibration.

As a fact, those recon mounts have been sitting on yard floors while being exposed to various weather conditions and it even worsens the condition. Best thing is to get them brand new. I also got a 2013 Toyota, but had to pay 70k for mounts and 140k to be set aside for suspension plus another 70k for tires😅.

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5 minutes ago, tilvin said:

Thanks for the reply friend. But my case is different. I completely shutoff the blower. So NO air coming from the vents and the AC is fully shut down. Still heat air coming from the foot area from both side. Tomorrow, I am going to bring to a "interior cushion shop" and going to put another floor carpet over the original carpet and see whether we can stop the hot air coming out...😂

I also shut the AC after noticing the malfunctioning of the cooling system. So better to get the AC checked my friend😁

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Your car i believe has auto a/c (climate control) with electric buttons to operate the temperature and air direction.

Most likely valve which controls the water to the heater got jammed in the open positions allowing heated water to the heater element.

Air position may be stuck at the direction of foot well too. Your local a/c guy should be able to sort this out.

 

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Rubber mounts are meant to deteriorate over time having absorbed all the vibration so it is pointless to replace it with used or "reconditioned" parts

 

Yes, i agree it can be costly but there is no point taking half-measures 

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Guys,

         I recently bought a Caldina diesel car...😃. The AC foot area vent valves blowing heat air even when the blower shutdown fully or AC on...🤣. I need to fix this problem. Do you know any good AC shops near Ja Ela or Kandana area? Please help me by providing contact details...😃.

Thanks.

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Threads merged. 

By the way, I think you're finally headed in the right direction by looking for a AC workshop. However, since the hot air is blown even with the AC off, I still believe it's either a duct flap that's stuck open or a leak in the firewall area causing hot air from the engine bay to be blown into the cabin while driving. 

 

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