Heater not working? Cold air flow. - DodgeIntrepid.Net Forums - Dodge Intrepid, Concorde, 300m and Eagle Vision chat
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post #1 of 20 (permalink) Old 11-19-2017, 04:35 PM Thread Starter
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Heater not working? Cold air flow.

Hello, cold weather has started here in my country and today, I have discovered that the heating is not working. I have automated climate control, I set it to 28, 30, Celsius degrees (or to the Higher temperature) and after 20 minutes of driving and 18 miles, the air flow temperature is still icy.
I am almost sure that the last winter, the heating was working. Since last winter, I have replaced the engine cooling radiator because the old one started to introduce oil into the water circuit. I purged the circuit and now the coolant seems very clean, but.. could that affect to the heater core?
My car is a Canadian Chrysler Intrepid made in year 1999, mounts the 3.2 litres V6 engine and has only around 78,000 miles.
Any idea about which component may be failing?
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post #2 of 20 (permalink) Old 11-19-2017, 07:22 PM
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Check coolant level first. Then check for fault codes. I'm assuming you have the automatic climate control since you said that you could set it to a certain temperature.

https://www.dodgeintrepid.net/113-sec...ble-codes.html
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post #3 of 20 (permalink) Old 11-21-2017, 03:51 PM Thread Starter
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The coolant level is ok.
About entering in diagnostic mode.. what if my temperature is in Celsius degrees instead of Fahrenheit?
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post #4 of 20 (permalink) Old 11-21-2017, 04:36 PM
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Do you have an Overhead Information Console? OTIS? If so there should be a button on there labeled "US/M". With that button you should be able to switch to Fahrenheit and use the ATC Diagnostic procedure.

Do you have the original owners manual? That should tell you how to switch between US/Metric if you don't have an OTIS.
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post #5 of 20 (permalink) Old 11-21-2017, 04:37 PM
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Otherwise the closest Celsius setting to 75 F is 24 C
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post #6 of 20 (permalink) Old 11-22-2017, 03:39 PM Thread Starter
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Hello, finally I did the test, it throws code number 24 (MODE DOOR ACTUATOR FEEDBACK FAILURE). I sincerely don't know what this is. Can be this related to the cold air flow issue? How do I fix it? Do you think this can be fixed by myself?
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post #7 of 20 (permalink) Old 11-25-2017, 01:32 PM
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See below for info - the repair is somewhat difficult

https://www.dodgeintrepid.net/40-seco...actuators.html
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post #8 of 20 (permalink) Old 02-23-2018, 02:12 PM Thread Starter
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Today I replaced the actuator by myself! This is the hardest repair fix job I have made until today. I spend half day of yesterday and half day of today with this job. The actuator is located in a very complicated place to work, and the release of the air pipe below it is complicated too, in fact, it has been impossible for me to put back again one of the screws that attach that pipe, I only put the front one, and I put some foam rubber between pipe and the object below it to impede it can move.
I took the actuator from a donor 2003 Chrysler 300m, initially, it didn't move, so I got a few scared, I had to run the ATC diagnosis again, then the new actuator started to move, and it was calibrated in the right position, and I was very happy LOL.
Now, the ATM is working perfectly again.
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post #9 of 20 (permalink) Old 03-30-2018, 05:45 AM
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Glad Your repair worked, technically they all are Canadian every one came from the Brampton plant, just like my newer 300 I get the Chrysler intrepid I have owned one too, but really they are all Canadian, and the 300's assembled in Graz, also Canadian manufactured then broke down and boxed for shipment.
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post #10 of 20 (permalink) Old 05-01-2018, 12:38 PM Thread Starter
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Last Sunday, the mode door actuator servo resulted broken again. So I had to return from a 5 hours highway travel without heater and opening windows / sunroof sometimes to unsteal glasses. I don't know why when this part fails, hot air does not work neither. I have just discovered right now that hot air only works when temperature at 75F or 24C when this actuator is broken. Any explanation for that?
It was a pain in the a** to replace this actuator, and I will have to replace ir again before the next winter (half year remaining here). I think I must put a new actuator instead of a used one. Do you know if there is any aftermarket one with good quality and durability?
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post #11 of 20 (permalink) Old 05-01-2018, 06:10 PM
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Quote:
Originally Posted by qwk69buick View Post
Glad Your repair worked, technically they all are Canadian every one came from the Brampton plant, just like my newer 300 I get the Chrysler intrepid I have owned one too, but really they are all Canadian, and the 300's assembled in Graz, also Canadian manufactured then broke down and boxed for shipment.
Intrepids sold into the Canadian market were badged as Chrysler, ones sold into the U.S. market were badged as Dodge.
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post #12 of 20 (permalink) Old 05-01-2018, 06:14 PM
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Originally Posted by EagleScreen View Post
Last Sunday, the mode door actuator servo resulted broken again. So I had to return from a 5 hours highway travel without heater and opening windows / sunroof sometimes to unsteal glasses. I don't know why when this part fails, hot air does not work neither. I have just discovered right now that hot air only works when temperature at 75F or 24C when this actuator is broken. Any explanation for that?
It was a pain in the a** to replace this actuator, and I will have to replace ir again before the next winter (half year remaining here). I think I must put a new actuator instead of a used one. Do you know if there is any aftermarket one with good quality and durability?
Dorman makes an aftermarket one. Several people have reported that they donít work well unless you replace some of its parts with ones from the bad OEM one. You can search for threads in which that is discussed, or perhaps someone who knows the details will post.
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post #13 of 20 (permalink) Old 05-07-2018, 03:39 PM Thread Starter
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What about this one in Rockauto? Is it a OEM rebuilt part? is a brand different than Dorman?
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post #14 of 20 (permalink) Old 05-07-2018, 08:56 PM
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It's not OEM. It's an aftermarket part made by Standard Motor Products. Probably just as bad as Dorman or worse.
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post #15 of 20 (permalink) Old 05-07-2018, 09:11 PM
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I agree with Ron.
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