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94 chevy 3/4 ton diesel ac recharge


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shockj2000
Novice

Apr 8, 2012, 1:54 PM

Post #1 of 13 (3201 views)
  post locked   94 chevy 3/4 ton diesel ac recharge  

Hi there. I just had a friend repair my ac because i didnt have time to mess with it. It never worked when i got it and its been around 3 yrs that ive owned it. anyways after a day of driving i heard a large explosion under the hood. one of the rubber lines that connects in between the compressor and accumlator blew. im guessing the line was old and brittle. anyways i had the line fixed with new rubber because i couldnt find a new one elsewhere and my question is should i remove the compressor (which is brand new) and empty the oil then re add new oil and blow out the lines before i recharge it or is it good to go if i just add the line back suck it down and recharge. Im unsure exactly what the previous guy did and all advise would be appreciated thanks


(This post was edited by shockj2000 on Apr 8, 2012, 2:01 PM)


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Apr 8, 2012, 2:16 PM

Post #2 of 13 (3186 views)
  post locked   Re: 94 chevy 3/4 ton diesel ac recharge  

That's one of the big problems with repairing A/C is that you rarely know what you're starting with. If the hose blew with a sudden burst, then you can be reasonably sure that it took most of the oil with it. The part you don't really know is why the hose blew. It could have been just an old hose but it could also have been pressure that went too high for some reason. Repairing A/C correctly requires a lot of experience and know how.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



shockj2000
Novice

Apr 8, 2012, 2:41 PM

Post #3 of 13 (3169 views)
  post locked   Re: 94 chevy 3/4 ton diesel ac recharge  

you right and im pissed i gave him two cans of freon then he tells me he bought two more and a big can with sealer i was dumb founded. and then i ask him why the compressor kicks on and off every thirty seconds and he said its normal but seemed abnormal to me. i figured he overcharged it but no telling. guess ill go ahead and remove the compressor and try and start all over hopefully no real damage is done. Also oil was all over the place when it blew


(This post was edited by shockj2000 on Apr 8, 2012, 2:42 PM)


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Apr 8, 2012, 2:45 PM

Post #4 of 13 (3164 views)
  post locked   Re: 94 chevy 3/4 ton diesel ac recharge  

A/C repair is not for the DIYer. Unless you are well equipped and experienced, you need to send it to a specialty shop.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



shockj2000
Novice

Apr 8, 2012, 4:23 PM

Post #5 of 13 (3144 views)
  post locked   Re: 94 chevy 3/4 ton diesel ac recharge  

ok thanks but i am doing it myself this time around thanks for a little info


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Apr 8, 2012, 4:29 PM

Post #6 of 13 (3140 views)
  post locked   Re: 94 chevy 3/4 ton diesel ac recharge  

DIY repairs on A/C can turn a $100 job into an $800 failure real fast.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



shockj2000
Novice

Apr 8, 2012, 4:32 PM

Post #7 of 13 (3136 views)
  post locked   Re: 94 chevy 3/4 ton diesel ac recharge  

I've fixed ac's before with no problems. I've had a few here and there with problems. That is why I was asking advice on a dry start thanks for the fast reply but why is this a place to ask questions and get mostly lectures?..


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Apr 8, 2012, 4:37 PM

Post #8 of 13 (3132 views)
  post locked   Re: 94 chevy 3/4 ton diesel ac recharge  

Read this


http://autoforums.carjunky.com/Automotive_Repair_C1/Heating_or_AC_Issues_F8/BEFORE_USING_THIS_FORUM_FOR_A/C_PROBLEMS_P114495/



I doubt you will get too much advice beyond "leave it alone"



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



nickwarner
Veteran / Moderator
nickwarner profile image

Apr 8, 2012, 5:57 PM

Post #9 of 13 (3123 views)
  post locked   Re: 94 chevy 3/4 ton diesel ac recharge  

The "sealer" you put in this is known to us in the trade as a different name. We call it the Death Kit. Its capitalised for a damn good reason. It ensures the death of your whole system. The man giving you tips on this which you call a lecture OWNS a shop in West Palm, Florida. Do you think this is the first he has seen of this? You have a menagerie of AC professionals at your disposal who know what they are talking about and see day in and day out what DIY guys in their backyard do. You are turning an expensive job into a VERY expensive job. If you're made of money then ignore the posts. I doubt you are if your truck is a 94. Want this fixed for the least amount of money AND working right? You need someone who has a shop roof and not a shady tree. Here's the part that sucks; fixing AC is expensive and requires expensive tools and expensive equipment. It also requires techs who make more than average because the knowledge to troubleshoot and repair this isn't a 2 week course at community college. Its years of experience. I myself am ASE certified in AC and my 95 Suburban has its windows rolled down all summer. Its that expensive even for ME. Take that in consideration


shockj2000
Novice

Apr 8, 2012, 6:41 PM

Post #10 of 13 (3118 views)
  post locked   Re: 94 chevy 3/4 ton diesel ac recharge  

yea i didnt put a sealer in my truck if u read my post . I get it spend alot and take to a tech.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Apr 8, 2012, 7:20 PM

Post #11 of 13 (3113 views)
  post locked   Re: 94 chevy 3/4 ton diesel ac recharge  

I think open heart surgery is real expensive too. Maybe i can find a doctor online to give me instructions.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



shockj2000
Novice

Apr 9, 2012, 1:16 AM

Post #12 of 13 (3103 views)
  post locked   Re: 94 chevy 3/4 ton diesel ac recharge  

Yea I don't see how heart surgery fits into this situation by any comparison but it does fit your answer of (see a professional) I mean a car ac system is a car ac system. When it comes down to it they are basically the same. Like I said I've figured them out before sorry I'm not on your professional level of arrogance because I have a 5 star ASE status, bachelors degree with high honors, And a platinum plaque for a million ac repairs sold but if I remember correctly forums are suppose to be helpful to people who do things themselves.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Apr 9, 2012, 3:12 AM

Post #13 of 13 (3094 views)
  post locked   Re: 94 chevy 3/4 ton diesel ac recharge  


Quote
I mean a car ac system is a car ac system. When it comes down to it they are basically the same.


Then, why would you ever need us. It's just a simple A/C system............... good bye



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.







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