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Old 06-30-2012, 09:01 AM   #12
Tech II
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Re: 97 Lumina normal A/C duct temps 3.1 Engine

Quote:Rule of thumb is, run the vehicle at at full cold position with A/C off(car going down the road)....read temp.....now turn the A/C on......read temp.....temp should drop a minimum of 30 degrees....
Originally Posted by Tech II
Rule of thumb is, run the vehicle at at full cold position with A/C off(car going down the road)....read temp.....now turn the A/C on......read temp.....temp should drop a minimum of 30 degrees...

I've come to trust your opinions on most everything; so hearing that from you makes me question my sanity.




Rule of thumb to me, is a general rule, not something cast in stone.....notice the word minimum?

If you have worked flat rate lately, our times just seem to get squeezed more and more......so you have to work within guidelines......you evacuate and recharge by weight and get the job done.....I could spend more time fine tuning the system, but I am not going to get paid for it....and more often than not, charging by weight is better than someone adding cans and not knowing how much they put in.....putting in too little and putting in too much is just as bad.....I find by weight a happy medium....

As far as I'm concerned, I agree the old R-12 systems cooled better than the R-134a systems.......but you work with what you have to work with....

Hope I didn't force you into a padded cell.....
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