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NTMID8R-R/T

1996 Ford Ranger

as you all know I bought this last year cheap, and as far as it running, I have had no problems after replacing hte head and doing all the rest of it ,

 

Problem I have now is the AC. so if there are4 some AC specialist out there, please chime in.

 

I have replace the following

Compressor

Condensor

Drier

orifice tube

blend door actuator

evaporator core

 

as of right now, all the Ac lines get cold so I dont think there is a low freon problem from what I have been told. 

but the dam thing still blows hot air through the vents. no cold air comes through,. blower motor has no problems , it blows air pretty dam good.

 

what else could be the problem here?

 

will a bad heater control valve also keep it from blowing cold air?

 

right now I am fishing here with this.

 

I am no AC mechanic by all means.

 

any help would be appreciated.

 

thanks

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Is the compressor kicking on?

 

Duh, you said cold lines

 

AC is just a transfer of heat, you prolly need to hook gauges up to see what is going on.

 

Hot liquid going out of the compressor and cold vapor coming back. There can't be that much to that system.

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Dave, are you sure the blend door is working correctly?, sounds like it's favoring the heat the rest of the system working is ok.  No AC guy here either jmho

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Vacuum leak?

 

 

does the heater control valve operate off the vacuum on the AC system? if so, that is one thing I have yet to change. and we had to make a repair to that small ass plastic line also.  hmmmmmmmmmmmm

 

 

I know I unhooked the vacuum line from the door actuator(behind the glove box) and you could feel the suction on that end.

 

Is the compressor kicking on?

 

Duh, you said cold lines

 

AC is just a transfer of heat, you prolly need to hook gauges up to see what is going on.

 

Hot liquid going out of the compressor and cold vapor coming back. There can't be that much to that system.

last time they were hooked up it was ok,  so only AC I have is 2/60

 

Dave, are you sure the blend door is working correctly?, sounds like it's favoring the heat the rest of the system working is ok.  No AC guy here either jmho

 

under the dash when i had the glove box out I can see it going up and down when changing the control switch on the dash. So I guess it is working ok,

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As Sean stated, it was a vacuum leak, or lets say the lack of. Heater control valve line is a plastic line. A while back We had to splice in a vacuum hose into it and it was collapsing keeping the vacuum from doing its job with the heater control valve. A buddy of mine gave me some air shock tubing and I replaced the rubber line with it. And now it gets cold enough to hang meat in the cab. Been working on that AC for over 8 months trouble shooting trying to figure out what was wrong.

 

Again thanks Sean.

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