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A/C clutch electric schematic


97RangerXLT

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@Andyrose read this how to:


It does not have much on converting but it will give you a better understanding on how the a/c system works, which you need to know before fixing it. All new parts you can get away with redoing the system for under 800 bucks. Reusing or sourcing good used parts can save you a ton, but you must replace the accumulator/ dryer, orifice tube with new, and you need to replace the hoses with a 134a compatible hose.

Read it, get the tools you need, you can get the vacuum pump and manifold Gauge set at harbor freight. I found my vacuum pump on Craigslist for 35 bucks.

AJ
 


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Wow, thanks for all the great info. So I went and talked with counter guy at NAPA auto and he said, oh yeah you can add 134a to an R12 system no problem. Then he tried to sell me the adapter kit, a hose to canister and canister of 134a. I am like thinking something does not add up here.

So searching on the web for R12 there is a product, by envirosafe Www.es-refrigerants.com. They have a product on line in a 4 oz can R-12, with hose for, like $18.50. I ordered a can because that is pretty low risk to see if I can just get the low pressure switch activating and compressor operating. But, they also sell an internal oil....should I use that also? Little skeptical to use the stop leak, but with the oil maybe soften or seal the o rings? Just trying to think outside the box on a limited budget.....
 

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Could not read that link. I do not have permission. Can you tell me what the upper and lower pressure settings should be? I am going to look for the leak with this setup.
 

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black_demon69

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depends on temperature

also so called refrigerant replacements are often just propane and are not a good idea
 

Andyrose

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You know it would be nice to know the following specifications. Cut in and cut out pressure at standard temps say 80 DEG F. Also capacity in lbs of R12 refrigerant on this 1989 3 liter FORD RANGER XLT.... anyone have an estimate?
 

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You know it would be nice to know the following specifications. Cut in and cut out pressure at standard temps say 80 DEG F. Also capacity in lbs of R12 refrigerant on this 1989 3 liter FORD RANGER XLT.... anyone have an estimate?
3992604130_60c40f2a32_o.jpg
 

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