Mechanics

TEMPATURE CONTROL GEAR

2002 Nissan Altima • 150 miles

My tempature control gear is broken. My mechanic temporarily fixed it last year and set it on heat for the winter months. Can you walk me through it step by step. Thank you, Marcie
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Marcymodj
October 9, 2012.



Is your HVAC system manual or automatic?
Are you referring to replacment of the mode controls?
What was done to set the heater on?


KHLow2008
Oct 9, 2012.
When I turn the dial to heat It's very hard and only blows cold air. This is common through my research. So through research I found out that my gear is broken and the cable isn't attached. My mechanic set it on heat last year. It was a temporary fix.I know it's located to the right of the gas peddle.I just need step by step directions on a temporary fix for the winter. Thank you


Tiny
Marcymodj
Oct 9, 2012.
The air mix cable is the one shown in diagram. If you disconnect the cable and manually turn the lever, you can change between heater and A/C, if that is what you mean.


KHLow2008
Oct 9, 2012.
I know there's a way you canset it directly to heat from underneath by pulling the cable and manually turning the gear. Are you familiar with this process?


Tiny
Marcymodj
Oct 9, 2012.
If you look at the picture, you can see the cable attached to a lever at its end. If you are going to use the control panel, using your hands to help push/pull the lever while turning the control knob would make it easier.


KHLow2008
Oct 9, 2012.
I will try it. Thank you


Tiny
Marcymodj
Oct 9, 2012.
You're welcome.


KHLow2008
Oct 9, 2012.
This is a simple fix. Look to the right of your gas pedal. You will see 2 gears that need to mesh correctly. The air mix door gear has a pin that needs to fit into the V notch on the cable operated gear. Over time, these parts will either wear or come loose and the gears will jam. Take a look. Very easy fix


Tiny
Brobann
Mar 3, 2013.