Question about 1997 Audi A6

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Just blowing hot air need to know where to add freon could not find the cap on the lower hose where else could it be

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  • Audi Master
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Maybe on ac compressor look at large ac line out of compressor and follow it untill u come to the low side port,it is the smaller one of the two ports but only one will hook up to single charge hose

Posted on Jul 04, 2009

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Why does heater blow cool air?


Old trick with any car ,firstly drain the antifreeze out then refit the bottom hose ,get a plastic bucket and add about a cupfull of caustic soda ,add hot water being usual carefull about this then when the caustic has disolved you add this to the radiator ,then providing the level is ok you refit the rad cap and run engine ,time ? depends say a half hour drive around town ,then let engine cool ,remove the bottom hose to drain being carefull as well whilst doing this .then remove the rad cap and flush it through
,then refit the bottom hose and remove a heater hose ,both it access allows then flush back through the heater hose ,both ways if you can both heater hoses off ,then refit one heater hose and let it back flush out through the rad cap then reverse this flow ,and if it all comes out nice and brown then clears you know your heater will work ,now drive car around with the water in for 5 mins then drain via bottom hose and then after fitting the bottom hose refill with antifreeze 50% min ,even in a frost free climate as the antifreeze is a anti corrosion agent as well .

Apr 12, 2014 | 1994 Mercury Sable

1 Answer

Hot air from air condtioner


Have you checked the Freon levels in the air unit? You may just need to add Freon.

Apr 17, 2013 | 2006 Nissan Altima

1 Answer

A/c blows hot air how do i recharge it


You can go to a auto parts store or even walmart and get the freon R134a with the connector for your car, ask which one you need if your not sure. You will probably need 2 cans of freon. With you hood open and the engine off locate the fitting for freon, it will be on an aluminum line there will be 2 and you want the bigger one. Remove the blue cap and connect the hose, Then have your helper start the car BEING CAREFUL TO KEEP HANDS AND OTHER IMPORTANT THINGS AWAY FROM FAN AND OTHER MOVING PARTS. Open the valve on the first can while helper keeps the engine at a very fast idle about 2500-300 RPM with A/C on high and shake the can with it upside down. If after the 1st can is empty and the air isn't cold add the 2nd can. This should make you AC cold again

Jul 04, 2011 | Ford F-350 Cars & Trucks

1 Answer

E200 COMP 2003 BLOWS HOT AIR WITH AC ON?


Sounds like the freon is low this is usually caused by a leak in the system or a bad compressor. Go to an automobile supply store and by a recharging system they come with instructions on where to put the gauge for the LOW its usually a blue cap, the gauge and the freon. If it is still blowing hot air even after you charge it chances are it is the compressor. If cold air is coming out then you might have a leak in a hose. Check it at night with a ultraviolet light

Mar 07, 2011 | 1997 Mercedes-Benz E-Class

1 Answer

The air conditioning doesnt work it just blows hot air even with the ac on. i dont know whats wrong with it if everything needs to be replaced or just something simple. i know nothing about cars


What I would try first is recharge the a/s system, your car came with R12 freon, that type of freon is impossible to get these days, so you will need a retro fit kit to convert it to 134A freon, the kit will have two 134a fittings that screw on to your R12 port, so that the 134a recharge hose will go on, the low side will be the one your add freon through, it will be the thinker hose of the two, the thin one is the high side stay away from that one, you will also need one can of freon (134a), if it works, it might work for a while till the freon leaks out again, then you will have to take it it for repair, but this way you know it's just a leak and every thing else works.Good luck, let me know if I can be of more help.

Jun 27, 2010 | 1992 Honda Accord

2 Answers

My daughter purchased a 92 olds cutlass ciera - air conditioning


Just go to the auto store and add one can of R134a. Buy a cheap kit that has a hose and a gage. Add to the low pressure side with the engine running. The hose will only fit on the low pressure side anyway. Watch the gage to see if it stays on "OK" range.

report results.

It won't matter if you add R134a to an R12 system. You may need 2 cans. 14 oz each.

May 21, 2010 | 1992 Oldsmobile Cutlass Ciera

1 Answer

My 2008 F250 w/ auto air conditing will only blow hot air after the truck is out in the sun for a short time when it is cool in the morning it works fine..


YOU NEED TO ADD MORE FREON TO THE UNIT. SOUNDS LIKE IT NEEDS TOPPING OFF. YOU CAN BUY R-134A FREON IN A PACKAGE WITH A HOSE AT A PARTS STORE. DON'T KNOW HOW TO CHARGE THE UNIT , NO PROBLEM. OPEN HOOD, START TRUCK,TURN A/C TO MAX WITH BOTH DOORS OPEN RUNNING AT
NORMAL SPEED, NO REVING, THEN FIND A BLACK METAL PIPE
RUNNING FROM A SILVER DEVICE CALLED AN ACCUMULATOR.
THE PIPE WILL HAVE A CONNECTOR, JUST UNSCREW THE CAP
AND PLACE FREON HOSE WITH THE CAN CONNECTED TO IT AND
SECURE THE END OVER THE PORT VALVE. OPEN FREON VALVE ON THE CAN AND PLACE UPRIGHT AND LET IT SIT. WHILE INSTALLING THE FREON, FEEL THE VENTS BY THE DOORS OR
DASH TO SEE IF THEY ARE GETTING COLDER. WHEN THE VENTS ARE COLD YOU CAN TURN THE VALVE OFF ON THE FREON CAN
AND DISCONNECT IT FROM THE FITTING AND PLACE THE CAP
BACK ON THE VALVE. THAT'S ALL THERE IS TO IT. YOU CAN ASK THE PARTS STORE CLERK WHICH PORT IS FOR CHARGING THE UNIT IF YOUR UNSURE. THEY ALSO SELL R-134A FREON WITH A
SEALANT MIXED IN WITH THE CAN JUST IN CASE YOUR UNIT MAY HAVE A LEAK IN THE SYSTEM. REMEMBER, **NO REVING** NO
MATTER WHAT ANYONE SAYS. THE SYSTEM WILL NOT CHARGE FASTER. IF YOU WANT FASTER CHARGING THEN KEEP THE CAN WARM. FREON WORKS WITH AMBIENT TEMPERATURE WHICH
MEANS WARM DAY OR CAN IS FASTER THAN A COLD DAY AND
A COLD CAN. FREON MOVES FASTER WHEN HEATED.

Apr 10, 2010 | 2008 Ford F 250 Super Duty 4WD

1 Answer

A/c not working blows hot air add 134a need help 99 f150 4.2 v6


Before you add freon to measure how much freon is clucht checks if the compressor is activated when you connect the air conditioner if the clucht not activated and have a good pressure in the system looks at low pressure switch that goes in the drier and that very often these are damaged, you also have to check the fuse and relay the compresor.Thanks

Mar 28, 2010 | 2004 Ford F150

1 Answer

Air conditioner is blowing hot air only can you add freon to 2002 santa fe where is the line you add it to


Yes you can add freon, the port will be on the line up at the accumlator tank (large silver tank on pass side close to the fire wall - will have a large black cap, does not look like a port) Get you a large can with a hose attached do not use it all save some for next year. 

Jul 28, 2009 | 2002 Hyundai Santa Fe

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