Question about 2006 Dodge Grand Caravan

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I have a 2006 dodge caravan. sometimes when I'm driving down the highway my air will stop blowing. as I get down the highway it will kick back on. what is wrong?

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  • 1,978 Answers

Chances are your Caravan uses thin plastic vacuum tubes under the hood. When you go up a hill under power or engine brake going down a hill, the engine will rock back and forth in the engine bay. This will sometimes bend (close off) the plastic vacuum lines causing the vent settings to change (even though you did not touch the levers) Either avoid the conditions that cause the problem or just expect it when going fast up a steep hill and live with it... or... change the vacuum lines to the traditional stiff rubber line which should stop the kinking. Stiff rubber vacuum lines should solve the problem. Hope this answers your question.

Posted on Dec 03, 2014

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Posted on Jan 02, 2017

SOURCE: 2005 Dodge Grand Caravan

99% chance it is the blower resister located behind glove box. Squeeze glove box in and pull out.
The resistor is right behind it, dealer part cost less then $20.
Dodge has had this problem for over ten years and until recently did nothing. Now they combine fuse with resistor, suppose that will correct it?

Posted on Oct 13, 2008

motor1258
  • 6674 Answers

SOURCE: 2002 caravan, heater problems

That was a common complaint a few years back, due to the fact that the heater core is a little too much higher than the engine, which requires that extra push it gets when engine RPM's increase. One thing I did do on my Caravan was remove my hoses to the heater core, and use a small external pump with hoses to circulate C.L.R. through my core for a while, then let it sit with CLR in the core overnight.Next day I circulated it through again, both ways by reversing hoses, and then re-attached hoses, bled air out of system, and notice quite an improvement in heat at idle. Once cleaned out, the heater core allowed coolant flow through it better at idle. If your stumped by explanation, take it to an automotive shop, or a Rad shop, and get a quote on flushing that core out for you. I recommend the CLR, but it might be too time consuming for you , but a flush will probably show some noticeable improvement.

Posted on Nov 23, 2008

  • 109 Answers

SOURCE: 2006 Dodge Ram 2500, A/C blows hot at idle &

i had the same problem in my 2003 Durango!!
turns out the auxiliary fan was not working!!
that fan should run all the time when the a/c is on!!
so start the truck, turn the a/c on and then go look at the aux fan (the plastic electric one attached to the radiator) and make sure it is spinning!!

Posted on Jun 17, 2009

morse008
  • 1111 Answers

SOURCE: My heater in my dodge caravan does not blow hot

First of all make sure your anti-freeze is at specification level's as well as make sure With the engine cold start the vehicle remove the radiator cap and make sure you see the flow of anti-freeze while keeping your hands as well as your clothing away from moving parts feel both hoses going into your heater core if the one on top of hot one on the bottom is cold then you have a Clogged heater core in which case you will need to flush the system . a simple garden hose will do the trick simply remove Both hoses to the heater core with the hose at the bottom line apply the garden hose until liquid comes out at the top of the other hose will probably see a lot of gunk. Also ensure that the vacuum line to the round ball under the hood is connected and not dry rotted.this will cause a vacuum leak to not allow the switch to fully engage from cold to hot. I hope this helps you.


Posted on Nov 07, 2009

  • 1779 Answers

SOURCE: 2001 Dodge Caravan heater blows cold air when stopped

Have you checked the coolant level? What you describe is exactly what happens if the coolant level is low. When stopped at idle, hot coolant is not circulating through the heater core, so no heat. As the engine increases in rpm's when you pull away from the light, the water pump is spinning quicker, and some coolant is making it to the heater core. So check the level, and if it is low, keep an eye on it to see if it drops again. That of course indicates a leak somewhere. Get it fixed, as overheating the engine leads to costly repairs and worse case a new engine. Let me know how you make out with this.

Posted on Dec 05, 2009

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