Flooded floorboards and iffy airconditioner in 01 Galant
I had my 01 Galants airconditioning repaired in May and have been back 5 times. It shuts down on long trips. Another condensor, expansion valve and temp sensor have been put in after the $2K repair job. It is still unreliable and I have a lake in the passenger floor boards. The mechanic claims it is rain water - though most of the water collected on a 700 mile trip with absolutely no rain. What does the heater core have to do with the puddle and the airconditioner?
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Re: Flooded floorboards and iffy airconditioner in 01...
The heater core lines are under the dash and when it starts leak i will flood the floor board. does the ac shut down even if you are running it on recirculate and on fresh air. it may be the compressor clutch. if that hasn't been replaced yet.
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it does not have an orifice tube. It has an expansion vlave. You will find it near the vacuum booster on the firewall. Once the a/c lines are disconnected where they go through the firewall you will be able to replace it.
sound to me like the evap core is icing up and freezing. you forgot to say ,does it fail only moving fast, only stopped or both, big deal that. if it fails fast and its fully charged (is it?) the I suspect freeze up. no location stated so i cant check out door temps or humidity. hand tied 5 ways.
all cars have a temperature sensor the stops this, some have a backup. the core will freeze under the right conditions. and the expansion valve , backs off and lets it thaw. my car has a termister that that detects a bad expansion valve and then cuts the compressor clutch.
the waiting for 3hrs, i bet there is a lake of water under the car from the Ice berg melt.
The only way to answer that question is to have gauges connected to the A/C system and observe several operational attributes of the A/C system when it quits cooling. I have seen weak compressor clutches just stop working (slipping) then when you shut the engine off and restart it, they start working again (for a while). On Toyota's it is also common for the expansion valves to stick wide open and cause the system to quit cooling. This can sometimes also start working again after shutting the system down and letting it sit for a period of time. This condition can be verified by looking at the pressure readings when it happens. I have seen Radiator and/or A/C condensor fans that work when they want to and not work other times - this will cause the A/C to stop cooling. The engine running a little hot can also be a clue for this if your Camry is equipped with a temperature gauge. Again, one of the the best ways to begin diagnosis for this is to simply observe these things (visually) to get an idea of what is going on.
The expansion valve is not working correctly on the a/c system. It is restricting the flow of freon from the a/c compressor to the condensor. So over a peroid of time driving the line will slowly freeze up and stop the flow of freon and the a/c will stop working completely. Will need to take it to a service center to have the freon gas removed and replace the valve. hope this will help you!!!
I believe there is a expansion valve located on the back part of the air conditioner on the back right side i believe that could be the problem. I think if I am understanding you correctly, your back air is not as cool as it should be or not cold at all. Might want to check this. If I am not understanding you correctly please let me know again what your problem is.
don't u mean the evaporator? the condensor is in front of the radiator, it get hot, anyway the problem is caused by a sticking AC evaporator expansion valve, this valve is at or near the inlet to the evaporator core in the dash.
Expansion valve is located passenger dash area , inside the evaporator housing. This is not a repair that can be easily done by a home "do it yourselfer".It requires evacuating the the air condition system of freon is the biggest obsticle doing at home. Rec. taking to a certified a/c repair shop for this repair.
If you have an XL-7 with a rear A/C outlet, there are two expansion valves. The dealer will more than happy to point them out. They are both just small aluminum blocks about the size of a pack of cigarettes. There will be two large tubes attached (cooling fluid going in and out) plus a small tube attached (to control the valve). I would think the front one is somewhere near the condensor (the radiator in front of the engine radiator). The rear one will be underneath the plastic interior hiding the rear A/C condensor. Sorry that isn't much of an answer. I bought a factory service manual set (5 volumes) but they're at the other house right now. Best $100 I've spent on this car yet. You should see the mechanics face when he realizes I've got a copy of the service page in question in hand and his bulls*** won't fly.