[hogstamogsta]

when im driving it is blowing hot air out by the floor on mainly the driver side..and when i put the ac on it blows really hot and then cold for a sec and then gets really hot again and on and off..could it be a bad heater core or a bad exaporator or what?

 

[hogstamogsta]

could it possibly be the heater air control valve or a torn or crushed vacuum line going to the dash or something like that? plllzzzz help

 

[Ranger]

Start by having your A/C pressures checked.

 

[hogstamogsta]

thats the first thing i did. the pressure is perfect, its at 40 lbs. the compressor isnt cycling or anything its staying on the whole time..

 

[Ranger]

40 lbs? I assume that was the low side pressure. What was the high side?

 

[hogstamogsta]

i dont know ill have to check that

 

[sts96]

Moisture in the system can cause an internal freeze up what is the history of your system. ? sts96

 

[hogstamogsta]

i think it might be a trap door problem or something maybe caused by a cracked vacuum line...the system has never had a problem and is same as when it came from the factory..

 

[Ranger]

This sounds a lot like your problem.
http://caddyinfo.ipbhost.com/index.php?showtopic=7517

 

[hogstamogsta]

i found it, somehow the vacuum line under the passenger side by the kick panel was split a little bit, i taped it for now, its a real small line, anyway to repair it so it dosent leak?

 

[Ranger]

I'd replace it but if you want to try a fix, maybe some RTV and heat shrink or electrical tape.