i have a couple of questions about a/c systemand brake system

*EDIT-Combining consecutive posts.

the question about the a/c system in the heat works but the cold doesn't do i just need to recharge it and my second question is the recharge kits that they sell are they as good as going to a shop and is there a big difference in the different recharge kits on was 10 dollars and went up to 40 i think

 

Does your clutch on the compressor kick on when the ac is turned on? Or does it blow heat no matter what temp is selected? If so check this thread https://blazerforum.com/m_144679/tm.htm If that's not the case, they sell a recharge kit that has a dye in the refridgerant and comes with a uv light to make it easier to locate a leak in the system. If all of your refridgerant has been evacuated from the system, you may need it to be placed under a vacuum(not a vacuum cleaner). An a/c shop would have to do it.

 

its not really hot or cold but it blows cold air on cold days so i think i just need to recharge it i haven't heard or seen that kind of recharge kit that has dye in it that you were talking about

 

It's got a green dye in it, here's a link to the page at autozone, they sell uv lights also. might I add that if the leak is bad enough, you could probably tell where it is coming from without this. clicky

 

have you ever used a recharge kit do they work well and is there any way that i couldn't have a leak at all or is that the only reason why i need to recharge it because there is a leak

 

How long have you had your blazer and what year is it? Usually you won't lose anything unless there is a leak somewhere orsomething was taken apart or replaced that required removal of a line. Has the truck been sitting for a long period of time? Depending on the severity of the leak, they do have an a/c stop leak, don't know if it really works or not though. Have you checked to see if your system was empty yet? Because if you have a charge then you're looking at a whole different problem.

 

i dont know alot about a/c system how do you check its a 97 jimmy sle 4x4

 

Yah I can speak for the failure of stop leak. The Ingrasol manufactured one I think it was it comes in a white can and Walmart has it doesnt work. I put the stop leak and the charge kit with stop leak and it still leaked out, maybe it works if the leak is very very very small, but a week after I did mine it was just like $40 in the air. But yah for me it isn't a major issues if my AC doesn't work since I'm in Maine and were lucky to get a few 90* days a year.

 

i think i'm just going to take it to a shop i didn't realize that it would leak out i thought i could just recharge it and be done with it

 

Hey guys i have a question, someone knows the process to activate the original alarm?? i just bought a 2000 blazer 4x4 and i realize that it has alarm but i donĀ“t know how to activate it properly.

Thanks