AC question 07 Ranger
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5th Wheeling
Joined: Jul 2003
Posts: 48
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AC question 07 Ranger
The AC in my 07 4.0l 170K is acting up.
Driving no cooling
Sometimes at idle cooling then diminishes after driving a bit
Coasting down hill Sometimes cooling then diminishes under load
AC is something I know nothing about, this is a closed system,
does Freon go weak or may I have a leak, or something else?
Bill
Driving no cooling
Sometimes at idle cooling then diminishes after driving a bit
Coasting down hill Sometimes cooling then diminishes under load
AC is something I know nothing about, this is a closed system,
does Freon go weak or may I have a leak, or something else?
Bill
Senior User
Joined: Jan 2011
Posts: 374
Likes: 0
From: Connecticut
Refrigerant Charge
Bill,
There are a few quick checks you can do to determine if the charge is low. An Advanced Search will yield results on things you can do. I also recommend grabbing a Haynes/Chilton manual with troubleshooting techniques you can try. The Haynes manual has a few things you can do to determine if you have a proper charge (about $24). Haynes also released a manual for heating and cooling systems.
That said, fellow FTEs recommend using pros for cooling in another active thread (2.5L AC). There are several valid safety and regulatory reasons to do this. You might want to do some of the quick check items to rule out the things. Be Safe!
Kevin
There are a few quick checks you can do to determine if the charge is low. An Advanced Search will yield results on things you can do. I also recommend grabbing a Haynes/Chilton manual with troubleshooting techniques you can try. The Haynes manual has a few things you can do to determine if you have a proper charge (about $24). Haynes also released a manual for heating and cooling systems.
That said, fellow FTEs recommend using pros for cooling in another active thread (2.5L AC). There are several valid safety and regulatory reasons to do this. You might want to do some of the quick check items to rule out the things. Be Safe!
Kevin
Logistics Pro
Joined: Jan 2002
Posts: 4,907
Likes: 39
From: suburban atlanta
Unless you want to spend the time and effort to learn about A/C systems, to understand how they work, the problems they present, and the possible damage you can do to the system and YOURSELF, and then go ahead with proper safety precautions, you are best left to finding a pro. If you want to learn, do it. Then proceed with that knowledge to determine if it is something you are comfortable tackling.
There is a whole section further down for HVAC problems. And there is a flurry of A/C posts here right now. Head on down to the A/C section and search there.
Your symptoms are typical of a low charge or weak clutch or too much clutch clearance.
The refrigerant is not supposed to leak out. If it does, it should be repaired, perhaps just needing some new O-rings. There is little maintenance to be done on the sealed system, by professionals or the owner. Cleaning leaves and debris from the plenum, and making sure the condensate drain is clear are the two for the owner to handle. Check the belt, too.
tom
There is a whole section further down for HVAC problems. And there is a flurry of A/C posts here right now. Head on down to the A/C section and search there.
Your symptoms are typical of a low charge or weak clutch or too much clutch clearance.
The refrigerant is not supposed to leak out. If it does, it should be repaired, perhaps just needing some new O-rings. There is little maintenance to be done on the sealed system, by professionals or the owner. Cleaning leaves and debris from the plenum, and making sure the condensate drain is clear are the two for the owner to handle. Check the belt, too.
tom
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