AC problems
Thread Starter
Land of Pleasant Living
Joined: Sep 2005
Posts: 2,619
Likes: 0
AC problems
Haven't had AC for a while.
When I turn it on, it shoots little bits of debris (like dirt or something) at me. I tried using a recharge kit, but it did nothing. The pressure would keep rising and then fall completely.
With the debris and pressure problems, I assumed there was a big leak or hole somewhere. But I traced the lines as best as I could and found no obvious issues.
Where else can I look besides the hoses?
Any idea what it might cost to get the issue resolved, whatever that may be?
When I turn it on, it shoots little bits of debris (like dirt or something) at me. I tried using a recharge kit, but it did nothing. The pressure would keep rising and then fall completely.
With the debris and pressure problems, I assumed there was a big leak or hole somewhere. But I traced the lines as best as I could and found no obvious issues.
Where else can I look besides the hoses?
Any idea what it might cost to get the issue resolved, whatever that may be?
Old School Ridin Clean
Joined: May 2001
Posts: 818
Likes: 0
From: miami, FL, US
Haven't had AC for a while.
When I turn it on, it shoots little bits of debris (like dirt or something) at me. I tried using a recharge kit, but it did nothing. The pressure would keep rising and then fall completely.
With the debris and pressure problems, I assumed there was a big leak or hole somewhere. But I traced the lines as best as I could and found no obvious issues.
Where else can I look besides the hoses?
Any idea what it might cost to get the issue resolved, whatever that may be?
When I turn it on, it shoots little bits of debris (like dirt or something) at me. I tried using a recharge kit, but it did nothing. The pressure would keep rising and then fall completely.
With the debris and pressure problems, I assumed there was a big leak or hole somewhere. But I traced the lines as best as I could and found no obvious issues.
Where else can I look besides the hoses?
Any idea what it might cost to get the issue resolved, whatever that may be?
Drifting
Joined: Sep 2005
Posts: 2,877
Likes: 128
First step is to determine if the system is holding refrigerant. If you have a gauge test system pressure at low side access port. Pressure should be roughly equal to air temperature in degF (100F = 100 psia) w/ cold engine.
If you have decent pressure, this doesn't mean you don't have a leak, but since system has not been running for some time, it says the leak is very small or perhaps no leak.
If you have no pressure, there's a leak that must be repaired before charging. Finding a leak can be simple or complex. Look at all the connections and hose crimps for evidence of dirt/oil accumulation.
Look around compressor clutch plane for evidence of oil (oily/dirty ring) thrown out from clutch plate. This indicates the compressor seal is leaking.
Check condensor face for yes, oil/dirt accumulation indicating a leak.
If everthing under the hood looks good, that means the evaporator may be the source of the leak. Not a difficult job to pull the evaporator. Usual problem is leaking orings on expansion valve and thermal feedback bulb. New orings lubed w/ Nylog and evap should be good. Clean thoroughly when removed.
Flush condensor, drain compressor, and replace receiver-drier. Add 7-8 oz of double-end capped PAG for lube, close system, vacuum for 5 mins, and isolate gauge valves. If system holds vacuum (no/small drop after 15 mins w/ gauge valves closed), then continue vacuuming for at least 30 mins - 1hr to completely dry system. Charge spec amount of R134a (23 oz?) into low side, and enjoy the cool.
You may want to remove your blower and check for dirt/leaves in blower box. Easy removal.
good luck
If you have decent pressure, this doesn't mean you don't have a leak, but since system has not been running for some time, it says the leak is very small or perhaps no leak.
If you have no pressure, there's a leak that must be repaired before charging. Finding a leak can be simple or complex. Look at all the connections and hose crimps for evidence of dirt/oil accumulation.
Look around compressor clutch plane for evidence of oil (oily/dirty ring) thrown out from clutch plate. This indicates the compressor seal is leaking.
Check condensor face for yes, oil/dirt accumulation indicating a leak.
If everthing under the hood looks good, that means the evaporator may be the source of the leak. Not a difficult job to pull the evaporator. Usual problem is leaking orings on expansion valve and thermal feedback bulb. New orings lubed w/ Nylog and evap should be good. Clean thoroughly when removed.
Flush condensor, drain compressor, and replace receiver-drier. Add 7-8 oz of double-end capped PAG for lube, close system, vacuum for 5 mins, and isolate gauge valves. If system holds vacuum (no/small drop after 15 mins w/ gauge valves closed), then continue vacuuming for at least 30 mins - 1hr to completely dry system. Charge spec amount of R134a (23 oz?) into low side, and enjoy the cool.
You may want to remove your blower and check for dirt/leaves in blower box. Easy removal.
good luck
Thread
Thread Starter
Forum
Replies
Last Post
SidhuSaaB
3G TL Problems & Fixes
18
May 30, 2020 12:40 AM
Fool
3G TL Audio, Bluetooth, Electronics & Navigation
9
Mar 10, 2016 08:42 PM
