ok so i just ordered a can of ac recharge and was wondering if i can do it in the winter time? also i was wondering what port do you use to fill it?

 

if you don't know what you are doing, dont do it. not trying to be mean or anything but a wrong move can cost ya a crap load of money. but yes you can charge it in the winter. best to be inside a shop that is heated though, because most of the systems won't cool below a certain temp due to freezing. the ac compressor does cycle when defrost is on but the heat keeps the system thawed out

 

Make sure you're on the low pressure side of the pump which will usually be the valve on the smaller diameter line.

 

If you are not familiar with the winter pressures, and it sounds that you are not, don't do it. If you overcharge the system say bye-bye to the evaporator in the dash. Wait until summer when you need it or have someone do it with an A/C machine.

 

x2 dont do it. You can get oil change places to charge them for $100. If you get pressure to high you can blow the compressor. As for charging the system you should do it since your defroster cycles the A/C pump in winter to keep it oiled

 

Exact charge for these trucks has been reported to be very important in other threads. It may be prudent to have this chore done by a reputable shop. I'm all for DIY but this may not be the best to do at home.

 

I'm all for DIY. I'll avoid a shop at all costs. That being said, unless you are VERY familiar and equipped for A/C repairs and service, you will be far better in the long run to take it to a competent shop and have repaired. There are many factors that affect your vehicles A/C performance that need to be taken into account when being worked on. When looking for a "qualified" shop, see what certifications are carried. Such as ASE or MACS (as I have) as examples. There are other certification processes available as well. Keep in mind, while a certification is a great thing, it is NOT a guarantee. It is a good indicator that if the tech took the time to gain the certification, the tech will probably take the time to ensure the job is completed correctly. Thanks for letting me get out my soapbox.

 

10-4 i really dont want to lose the ac my buddy is certified he'll do it for free

 

In my experience, the low pressure line is the larger of the two lines.

 

so what happens if too much pressure is there, it will blow it up or will it not operate right? or both? thanks guys