Question about Chevrolet 1500

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Say Guys....Anyone out there know the freon capacity (134a) on a 1998 Silverado 1/2 ton 5.7L? If you also have oil cap. Great! Theroad

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  • Patrick  Bogan
    Patrick Bogan Jul 06, 2009

    Flagcar, I apprieciate your time responding., you see, the information you refer to (usually found on the core support of most vehicles) is missing. this vehicle appears to have been in an accident involving the front end, no less, and effectively wiping out all would be stickers. Like you say, this info needs to be exact if one is to us it for troubleshooting, performance, or simular issues. I didnt advertise it, but, Im a "Master" mechanic (I guess thats what they refer to me as) on this site. or should I say, problem solver here on Fixya. I would have "guessed" around two pounds myself, but as you know, it needs to be exact. I thought maybe I could find a collegue here on fixya, since I was on here anyway......but.....thanks anyway.....theroad


  • Patrick  Bogan
    Patrick Bogan Jul 11, 2009

    Absolutely...Flagcar is correct. Unbeknownst to many do it yourselfers out there, reference material is as close as your nearest auto supply. I,E, Autozone, aside from carrying auto repair manuals, has at their' disposal, a watered down version of "Alldata's" repair manuals on their' servers. They describe repair procedures, component locations, and specifications for most cars and light trucks sold in the US. They dont exactly advertise that they can access this information right there on their' POS monitors. The good news is, anyone can. With a PC and internet connection, go to Autozone.com....take a couple o' minutes and register...allowing you to access this info, and create and store your own info about the cars you work on and the information needed.Likewise, check your local library. I was very excited to learn that my local library had access to "Chiltons Online" A vast and detailed library of many cars and trucks on the road today. It dosnt cover every thing about every single make, but, it covers a lot of ground. All this info availible to me at home. All I need is my library card number to access login and password info. So I can access it anywhere I have access to a computer. In order to clarify my request the other day, I Put a question out there (Here on Fixya) inquiring about freon capacity on a chevy truck. Often , my days are spent working downstairs in the garage, then coming upstairs to access the computer. Being "spoiled" with Fixya's quick response time, I put the question out there knowing one of fixya experts would volley back an answer shortly. Our friend, Flagcar came back with the information above. While it wasnt exactly what I needed, it provided information to a lot of people, to whom probably were not aware of it in the first place.This is also an excellent example of people helping people (with the "EGO" left at the house) Thanks again to Flagcar for jumping on this request.... Theroad

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The coolant capacity is posted on the system label under the hood of all vehicles. THe local dealer and/or your local AC mechanic can supply this data.

Posted on Aug 21, 2009

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There is a sticker under the hood that tells you it is a 134a system and how much refrigerant it holds, and what kind of a/c oil to use. My guess is around 2 pounds, but it is an exact science. Too much or too little will cause it not to cool

Posted on Jul 01, 2009

  • Mike Phillippi Jul 06, 2009

    I too am a mechanic. I try to put everything in plain english so most can easily understand it. I don't know if you have an Advance Auto parts near your town, but if so, you can call them and ask for the 134a specs. I work at a radiator and A/C shop and we frequently run into the problem of not having a label. In most instances, they can look it up on their computer. Hope this helps.

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Does my 2000 chevy silverado use 134a refrigerant?


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Wow thats hot!! Ok want a quick fix? You sound like ya have a leak so lets see whats going on....buy 3 cans of freon 123a...they come in 1 pound cans...get a low pressure charge hose.
here"s what you will do,
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Drivers side firewall, right beside the head. Its best to be able to see high side pressure as well, using a set of 134a manifold gauges. Do not overfill....Tip....When you remove cap(s) listen carefully for hiss. This indicates leak past schrader valve of service port. To tighten, keep in mind, one has to press down and to the right at the same time, as one wants to avoid loosing freon unnecessarily.Just a quick, light..but fairly firm twist to right, then get off it. You'll probably get a short little shot of freon and oil so protect your eye's and face (this is not an option)The tightening procedure detailed here helps prevent further leaking and cooler car+people! Caution: If you have any doubts about your ability to service any high pressure connection, Let a mechanic do it. This is a small price to pay to keep everyone safe. theroad

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Air Conditioning


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