When you hook-up your gauges to read pressures; are you suppose to read them at a certain rpm; also when you're charging the system do you charge it at a certain rpm? Thanks in advance to any replies

jamyer; In my opinion you're asking a VERY good question. I think I see what the difference is. There's a whole LOT more money to be made if you reclaim, weigh, and recharge by weight versus adding some freon with your gauge set. I know I'll step on a lot of toes here but I'm with you in your questi...

It just seems like the answers I getting is; if you're ac is not blowing as cold as it used to and you'd like for it to be cooler the answers I'm getting is drain the system; weigh what was in it; put correct amount to specs back in. Seems like an AWFUL expense to bear if it just needs a little freo...

Let me go at it a different way: Say for instance; 1. You put your gauges on a vehicle; what should the readings be in 85-90 degree with 90% humidity if the system is OK. 2. Do you read the gauges at a certain rpm? 3. If the system is low and you add freon; do you install it at a certain rpm? 4. If ...

The system has already been vacumned down so I wouldn't know how was weight came out of it and I was wondering about charging the system back up is the reason for the different questions I asked. Gauge readings; rpm; etc. Thanks

1. What should my gauges read with 85-90 degree temp and 90% humidity; Low and High side? 2. Should the engine be running at a certain rpm when you charge the system? 3. If you charge a car at say 1500 rpm at the correct pressure of say 40 psi then your car at idle the pressure shows like 60; is tha...