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a/c recharging
hello i just put a can of freon r134a in my 98 dodge stratus and have a ?
about it. when i put the refill gauge on it at first, it said low ( in the green area on gauge) then when i put the can of freon onto it and emptied it, it was in the blue range which means full. now i noticed the more i reved the engine,then the gauge would fall down toward the green area. does this mean i need more freon so that when i rev it good it stays in the full area on the gauge? thanks Randy |
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#2
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a/c recharging
"Randy Pape" > wrote in message ... > hello i just put a can of freon r134a in my 98 dodge stratus and have a ? > about it. when i put the refill gauge on it at first, it said low ( in the > green area on gauge) then when i put the can of freon onto it and emptied > it, it was in the blue range which means full. now i noticed the more i > reved the engine,then the gauge would fall down toward the green area. does > this mean i need more freon so that when i rev it good it stays in the full > area on the gauge? thanks Randy > > Randy if you don't have a clue of how the A/C system works you may want to leave that job to someone that is qualified to do the repair. You can seriously hurt yourself by trying to charge the system yourself or do damage to the system . Glenn Beasley Chrysler Tech |
#3
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a/c recharging
Randy Pape wrote:
> hello i just put a can of freon r134a in my 98 dodge stratus and have a ? > about it. when i put the refill gauge on it at first, it said low ( in the > green area on gauge) then when i put the can of freon onto it and emptied > it, it was in the blue range which means full. now i noticed the more i > reved the engine,then the gauge would fall down toward the green area. does > this mean i need more freon so that when i rev it good it stays in the full > area on the gauge? thanks Randy > > Glenn is right. To charge the system properly requires a manifold gage set that shows high and low side pressures. You measure the temperature of the liquid line at the condenser and compare that with the high side pressure against a chart in the service manual. The other option is to completely evacuate the system and recharge it with the exact amount of refrigerant specified for your car. If your ac was not cooling properly, but worked good sometimes, chances are the expansion valve is bad and needs to be replaced. If you have a high mileage car you might consider replacing the compressor (and filter dryer) now. If you wait until the compressor dies, the repair job will be more expensive because the lines will need to be flushed out to remove any metal particles that the compressor may have shed. Those top off kits that the auto parts stores sell are a waste of money. If you were unfortunate enough to pick the one that adds oil to the system, now your ac system has too much oil in it. The excess oil displaces refrigerant which reduces its BTU capacity. You never add oil unless you have replaced a component like the filter/dryer, and then add only the amount that component holds. -- Gyz 07 Saturn Sky 98 Dodge Status ES 94 Mitsubishi Eclipse GST |
#4
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a/c recharging
"maxpower" > wrote in message . .. > > "Randy Pape" > wrote in message > ... > > hello i just put a can of freon r134a in my 98 dodge stratus and have a ? > > about it. when i put the refill gauge on it at first, it said low ( in > the > > green area on gauge) then when i put the can of freon onto it and emptied > > it, it was in the blue range which means full. now i noticed the more i > > reved the engine,then the gauge would fall down toward the green area. > does > > this mean i need more freon so that when i rev it good it stays in the > full > > area on the gauge? thanks Randy > > > > > Randy if you don't have a clue of how the A/C system works you may want to > leave that job to someone that is qualified to do the repair. You can > seriously hurt yourself by trying to charge the system yourself or do damage > to the system . > Oh come on Glenn, obviously his system is RF'ed already or he wouldn't have been screwing around with it. You can't get a garage these days in the middle of the summer to touch an A/C job for under $500, they have more than enough work to not bother with the peanut jobs. To the original poster, here's how the guage color codes work: ) No needle deflection - big freon leak, if you add freon it's just going to be empty in a few weeks again. System is RF'ed. Adding freon to this system is definitely illegal until it's repaired. ) Needle deflection into the white or low green area - very likely smaller freon leak and if you add freon it might last the summer. Add freon gradually and stop when the air starts blowing cold. If the air temp doesen't change after adding a can, stop adding, the system is RF'ed. Also, consider buying a black light and a can of Freon with dye in it, add the freon, drive a week, then use the blacklight to find the leak. It's most likely a fitting, sometimes just tightening the fitting will work. ) Needle deflection into the green or blue area - don't add freon the system is not leaking. System is RFed. ) Needle deflection into the high blue and yellow area - system is probably partly plugged - look for a big rock dent in the condensor in the front that might have collapsed one of the tubes. Do not add freon. Do not run the A/C. System is RFed. )Needle deflection into the yellow or red area - system probably has a plugged expansion valve. Do not add freon. Do not run the A/C unless you want to damage it. System is RFed. Ted * RF = Royally ****ed. |
#5
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a/c recharging
i guess by your statement is why my shop is always swamped with ac work for
less than 500 is there Ted Mittelstaedt wrote: > "maxpower" > wrote in message > . .. > > > > "Randy Pape" > wrote in message > > ... > > > hello i just put a can of freon r134a in my 98 dodge stratus and have a > ? > > > about it. when i put the refill gauge on it at first, it said low ( in > > the > > > green area on gauge) then when i put the can of freon onto it and > emptied > > > it, it was in the blue range which means full. now i noticed the more i > > > reved the engine,then the gauge would fall down toward the green area. > > does > > > this mean i need more freon so that when i rev it good it stays in the > > full > > > area on the gauge? thanks Randy > > > > > > > > Randy if you don't have a clue of how the A/C system works you may want to > > leave that job to someone that is qualified to do the repair. You can > > seriously hurt yourself by trying to charge the system yourself or do > damage > > to the system . > > > > Oh come on Glenn, obviously his system is RF'ed already or he wouldn't > have been screwing around with it. You can't get a garage these days in the > middle of the summer to touch an A/C job for under $500, they have more > than enough work to not bother with the peanut jobs. > > To the original poster, here's how the guage color codes work: > > ) No needle deflection - big freon leak, if you add freon it's just going > to > be empty in a few weeks again. System is RF'ed. Adding freon to this > system is definitely illegal until it's repaired. > > ) Needle deflection into the white or low green area - very likely smaller > freon > leak and if you add freon it might last the summer. Add freon gradually and > stop > when the air starts blowing cold. If the air temp doesen't change after > adding > a can, stop adding, the system is RF'ed. Also, consider buying a black > light > and a can of Freon with dye in it, add the freon, drive a week, then use the > blacklight > to find the leak. It's most likely a fitting, sometimes just tightening the > fitting will work. > > ) Needle deflection into the green or blue area - don't add freon the system > is not leaking. System is RFed. > > ) Needle deflection into the high blue and yellow area - system is probably > partly plugged - look for a big rock dent in the condensor in the front that > might have collapsed one of the tubes. Do not add freon. Do not run the > A/C. System is RFed. > > )Needle deflection into the yellow or red area - system probably has a > plugged > expansion valve. Do not add freon. Do not run the A/C unless you want to > damage it. System is RFed. > > Ted > > * RF = Royally ****ed. |
#6
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a/c recharging
"philthy" > wrote in message ... >i guess by your statement is why my shop is always swamped with ac work >for > less than 500 is there > I'm sure there's an english sentence in there somewhere, but I can't quite make it out. |
#7
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a/c recharging
"Randy Pape" > wrote in message ... > hello i just put a can of freon r134a in my 98 dodge stratus and have a ? > about it. when i put the refill gauge on it at first, it said low ( in > the green area on gauge) then when i put the can of freon onto it and > emptied it, it was in the blue range which means full. now i noticed the > more i reved the engine,then the gauge would fall down toward the green > area. does this mean i need more freon so that when i rev it good it stays > in the full area on the gauge? thanks Randy Here's my answer: No. My answer is just as good as the other guys', and it's short! |
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