Multiple A/C and heat issues... - JeepForum.com
 
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post #1 of 2 Old 09-21-2013, 04:00 PM Thread Starter
TSGR
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2000 WJ 
 
Join Date: Feb 2012
Location: Ephrata
Posts: 62
Multiple A/C and heat issues...

2000 Grand Cherokee Limited, dual climate.

Last summer I tried to charge the a/c (was blowing hot air) just to have the freon blow out the vents. So I posted here and was told I need a new evaporator core. Just wanted to verify that, never fixed it.

Last night I found out my heat isn't working at all (worked last winter, although not very well) Just blows air, not hot or warm.

I also noticed that the air blows out the center vent stonger then the rest (center right I think, will double check that.)

After a little research I decided the no heat issue is most likely due to a blend door issue, but why doesn't the air blow evenly?

I am able to switch between floor, vents, and defrost with no issue.

Is the blend doors a component of the evap core? Is that the whole hvac assembly? I'm really a noob to this stuff but I think I can handle taking out the dash and replacing parts if I know what to replace, and have some instruction. Was going to replace the heater core and hoses while I'm at it. Any other things to replace while I'm in there?

Thanks in advance for any input.

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post #2 of 2 Old 09-23-2013, 03:41 AM
cykaaro
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2000 WJ 
 
Join Date: Apr 2012
Location: orangville
Posts: 2,841
Heat issue could possibly be that the heater core needs to be flushed out. Easy to do. Just need a garden hose and basically turn it on, then backflush/forward flush it from the engine side of the firewall. Keep going back and forth until it runs clear.

The beatings will continue until attitudes improve!

HID Quad bi-xenon + foglight retrofit
http://www.hidplanet.com/forums/showthread.php?44572-Jeep-2000-Grand-Cherokee-WJ
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