A/C.in my 99 jimmy

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  #1  
Old 08-20-04, 03:03 PM
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A/C.in my 99 jimmy

it started to blow some fog what is wrong
 
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Old 08-20-04, 04:54 PM
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first thing that would come to mind would be leaking heater core can cause windows to fog up but you usually can smell some antifreeze when this is the case. might check coolant level and have cooling system pressure tested for leaks.
 
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Old 08-20-04, 05:58 PM
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A/C may have frozen.
 
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Old 08-20-04, 08:06 PM
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Question frozen

Originally Posted by Desi501
A/C may have frozen.
how do i fix it
 
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Old 08-21-04, 04:05 AM
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First, keep everything related to this vehicle and this problem within one thread so it can be followed.
For your problem, you need to determine if that is what's really happening. Are you in the habit of lowering the fan speed to reduce the cooling instead of adjusting the temp setting? When this happens, open the hood and look at the accumulator and suction pipe and see it anything is frosting up. Are you having any other problems with either the heater or A/C? Does it seem to be cooling normal when this happens?
 
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Old 08-21-04, 04:48 AM
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Unhappy Smells

I Can Smell Maybe Antifreeze But I Do Not See Anything Leaking
 
  #7  
Old 08-21-04, 05:37 AM
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I agree the heater core is leaking.Check the carpet on the passenger side for dampness.If it's not wet it soon will be,it would be best to change it before it has a major rupture and pours coolant into the truck.You don't want to have to remove the carpet to clean the coolant from it and dry it out.Heater cores are a pita so expect to spend some time on it.Oh please don't double post we will get you an answer.We are not sitting here hoping someone will post so we can answer them right away.There are several people checking this site throughout the day so sometimes you need to be a little patient.We are volunteers and work real jobs to pay the bills.
 
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Old 09-08-04, 04:47 AM
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Unhappy

can i change the heatter core myself
 

Last edited by dave b; 09-12-04 at 08:00 AM.
  #9  
Old 09-21-04, 05:52 AM
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Question

Originally Posted by dave b
can i change the heatter core myself
is it hard to do
 
  #10  
Old 09-21-04, 12:49 PM
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I believe this model is not very easy to change if you do decide to do it yourself suggest a good manual or a subscription to alldata and a weekend when you will not be in a hurry.
 
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Old 10-13-04, 08:09 PM
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Question heater core

how do i get a manual or subscription to alldata to replace my heater core
 
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Old 10-14-04, 04:22 AM
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Go to alldata.com and subscribe.
 
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