95 Discovery, leaks coolant only when A/C is on? - Land Rovers Only

5speeddisco · 05-31-2007, 12:40 AM

I just bought a 1995 Discovery.. I noticed the day I bought it, right after I picked it up I filled it up at the Shell station and noticed coolant dripping out from under the truck (before I parked the truck, the A/C was running). I didn't have a long drive ahead of me, so I topped it off and drove home, but WITHOUT the A/C on and noticed that it had completely stopped leaking.

Fast forward to today, the same thing happened again. Drove it with the A/C on, parked it, and it leaked. Then drove it with the A/C off and it didn't leak.

What on earth would make it leak water/coolant only when the A/C has been running? This couldn't possibly be the condensation, because its green like coolant.

Any help would be greatly appreciated!

cdcom · 05-31-2007, 03:18 AM

Was your rover running hotter with your ac on???

Rovin4life · 05-31-2007, 05:19 AM

how about the green dye added to the freon.

5speeddisco · 05-31-2007, 07:22 AM

No, it was running the same temp as normal. And I doubt it was the green dye in the freon, because I'd think all the freon would have run out but I'm sure it hasn't because the A/C is still cold.

When leaking, the water drips from a hose on the left side of the motor (when looking at it directly) under the A/C compressor and whatever else is under there.

5speeddisco · 05-31-2007, 05:36 PM

Update, drove it around today with the air con on full blast, and it didn't leak a drop. wierd.

p76rangie · 06-01-2007, 02:39 AM

Have you considered that it may be condensation from the air-con unit rather than coolant.

cdcom · 06-01-2007, 03:03 AM

running the AC will tax your cooling system a little more than without, possibly pressuring a hose fitting to leak. If you've identified the the hose where it is leaking, try replacing it along with the clamp.

5speeddisco · 06-01-2007, 09:09 AM

cdcom, I do believe thats the case. I think it's mainly affected by how long I drive and the temperature out. I'll have a look later.

Disco Mike · 06-01-2007, 10:03 AM

When are you going to do what you need to do, that being have a pressure test done on the coolant system.
All this driving around and posting and you could be toasting your engine. Get it over to a shop before you drop a sleeve.
Mike

05-31-2007, 12:40 AM	#1 (permalink)
5speeddisco Member Join Date: May 2007 Posts: 4 Gallery: 0	95 Discovery, leaks coolant only when A/C is on? I just bought a 1995 Discovery.. I noticed the day I bought it, right after I picked it up I filled it up at the Shell station and noticed coolant dripping out from under the truck (before I parked the truck, the A/C was running). I didn't have a long drive ahead of me, so I topped it off and drove home, but WITHOUT the A/C on and noticed that it had completely stopped leaking. Fast forward to today, the same thing happened again. Drove it with the A/C on, parked it, and it leaked. Then drove it with the A/C off and it didn't leak. What on earth would make it leak water/coolant only when the A/C has been running? This couldn't possibly be the condensation, because its green like coolant. Any help would be greatly appreciated!

05-31-2007, 03:18 AM	#2 (permalink)
cdcom Member Join Date: May 2007 Location: Scottsdale, Arizona Posts: 69 Gallery: 0	Was your rover running hotter with your ac on??? __________________ 1996 Disco 1 Chris........

05-31-2007, 05:19 AM	#3 (permalink)
Rovin4life Former NAS LR TECH, Current AUS LR TECH Join Date: Oct 2005 Location: DOWN UNDER Posts: 1,884 Gallery: 0	how about the green dye added to the freon. __________________ I work on Rovers. Got a question just ask.

06-01-2007, 03:03 AM	#7 (permalink)
cdcom Member Join Date: May 2007 Location: Scottsdale, Arizona Posts: 69 Gallery: 0	running the AC will tax your cooling system a little more than without, possibly pressuring a hose fitting to leak. If you've identified the the hose where it is leaking, try replacing it along with the clamp. __________________ 1996 Disco 1 Chris........

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05-31-2007, 07:22 AM	#4 (permalink)
5speeddisco Member Join Date: May 2007 Posts: 4 Gallery: 0	No, it was running the same temp as normal. And I doubt it was the green dye in the freon, because I'd think all the freon would have run out but I'm sure it hasn't because the A/C is still cold. When leaking, the water drips from a hose on the left side of the motor (when looking at it directly) under the A/C compressor and whatever else is under there.

05-31-2007, 05:36 PM	#5 (permalink)
5speeddisco Member Join Date: May 2007 Posts: 4 Gallery: 0	Update, drove it around today with the air con on full blast, and it didn't leak a drop. wierd.

06-01-2007, 02:39 AM	#6 (permalink)
p76rangie Ian Matthews Join Date: Jan 2006 Location: Melbourne Australia Posts: 2,167 Gallery: 0	Have you considered that it may be condensation from the air-con unit rather than coolant.

06-01-2007, 09:09 AM	#8 (permalink)
5speeddisco Member Join Date: May 2007 Posts: 4 Gallery: 0	cdcom, I do believe thats the case. I think it's mainly affected by how long I drive and the temperature out. I'll have a look later.

06-01-2007, 10:03 AM	#9 (permalink)
Disco Mike Moderator Join Date: Aug 2004 Location: Parker, Colorado Posts: 5,777 Gallery: 0	When are you going to do what you need to do, that being have a pressure test done on the coolant system. All this driving around and posting and you could be toasting your engine. Get it over to a shop before you drop a sleeve. Mike

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