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Mitsubishi Endeavor Water Leak Behind Dash

19 messages,  Last post on Sep 21, 2009 at 9:01 AM

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#10 of 19 04 leak by concreteboy Apr 05, 2009 (5:39 am)
i believe your leak is in the evaporator . this is common due to the fact that the endeavor's drain is poorly designed. what happens is that the drain hole underneath the car is plugged. it doesn't take much to plug it either. the water backs up to the evap and leaks on to the passsenger side of the floor. i took mine to the dealer and he wanted 500.00 to see if he could fix it. i took it home and did it myself for nothing. jack up your car. be sure to put jack stands underneath. on the driver side, at the bottom of the firewall, there are 2 brake lines that run along there. behind the brake lines there is a hole about the size of your little finger. it will take you a little while to locate it because you can't really see it unless you have a mirror. it is directly behind the lines and almost impossible to find. once you locate it you will have to take some wire to stick up in there and wiggle it around as much as you can untill you get through the dirt in the hole. once you do that, be prepared to get soaked because the water will be coming. i also cleaned it out with my air compressor. no more leak, no more mold since. it was a hassle but at least the dealer didn't get my money. Replies to this message: majvic (Apr 05, 2009 11:38 am) majvic (May 07, 2009 1:14 pm)
#11 of 19 endeavor leak by ackeegrl Apr 05, 2009 (6:55 am)
thanks for that info. I will buy a six pack and see if that will get someone more knowledgeable than me to go for this challenge without taking out my brake line. Excuse my ignorance but since it only leaks when it rains what role does the evaporator play in draining rain water which should have never entered the car in the first place?
#12 of 19 endeavor leak by concreteboy Apr 05, 2009 (9:09 am)
good idea for the 6 pack, but you don't have to take off the brake lines at all. allthough the hole is right behind the lines, you can still get a piece of wire up in there. if you are absolutely sure that yours leaks only when it rains, then check firewall and floor area on the passenger side for a missing or craked floor pan grommet. another way of telling if you are leaking from the evap tray, is to put some dry paper towel on the floor and drive your car around. if your tray is full of water, it will leak more when you make right and left turns. if you get water, that means your tray is full and you need to free the drain line like i said. either way, try it out before you take it to the dealer unless you got the money. Replies to this message: ackeegrl (Apr 05, 2009 7:46 pm) ralka (Jun 18, 2009 4:39 pm) ackeegrl (Jun 20, 2009 6:39 pm) and 2 more...
#13 of 19 Re: 04 leak [concreteboy] by majvic Apr 05, 2009 (11:38 am)
Replying to: concreteboy (Apr 05, 2009 5:39 am) my leak is only on the driver's side. I'm holding off until I find out more or have time to get under there myself. majvic
#14 of 19 Re: endeavor leak [concreteboy] by ackeegrl Apr 05, 2009 (7:46 pm)
Replying to: concreteboy (Apr 05, 2009 9:09 am) U R Gr8! I appreciate your info. I printed your instructions and sent my 18 yr old son under the suv to check it out. It took him a while to find the hole and yes he did need that mirror. He found the hole and said the wire went in left and also to the right but he couldnt get it to go in far either way.....so I didn't get to see him get soaked with water.did you have to go straight up with that wire or did you see 2 areas to go left or right? it's an 04 endeavor. we didnt have to put it on a jack since the SUV sits high off the ground. is it possible that hole is not clogged so I might have another problem? or do I need to drill a hole in the bottom of my truck? I'm desperate at this point..... Replies to this message: ralka (Jun 18, 2009 4:39 pm) ackeegrl (Jun 20, 2009 6:39 pm) ataristyle (Aug 22, 2009 9:51 am) and 1 more...
#15 of 19 Re: 04 leak [concreteboy] by majvic May 07, 2009 (1:14 pm)
Replying to: concreteboy (Apr 05, 2009 5:39 am) Estimate from the best AC people to fix is $953. He says bad Mitsubishi design. They used a foam material in the evaporator and it deteriorates in 3 to 5 years. Only fix is pull the dash and replace. GM uses a rubber sponge which never has a problem. This really sucks.
#16 of 19 Re: endeavor leak [ackeegrl] by ralka Jun 18, 2009 (4:39 pm)
Replying to: ackeegrl (Apr 05, 2009 7:46 pm) sounds like you have a leak from the body area not the a/c, whole different animal. could be a body seam could be a w/shield leak , sunroof ? the a/c will leak if there is a lot of moisture in the air and you use either the a/c of the defrosters ( both activate the compressor) if it is only in the rain than i would look in a different direction Replies to this message: ackeegrl (Jun 20, 2009 6:39 pm) ataristyle (Aug 22, 2009 9:51 am) tfunk1 (Sep 21, 2009 9:01 am)
#17 of 19 Re: endeavor leak [ralka] by ackeegrl Jun 20, 2009 (6:39 pm)
Replying to: ralka (Jun 18, 2009 4:39 pm) I agree. I use my AC all the time since it's really hot here in florida and I get no leaks. I even pulled up the carpeting and the foam under it to see if it leaks when the AC is on and it doesnt. Only when it rains then the water gathers in the front passenger side where there is a dip for water settling......I'm not sure what it's for but the space under there is large enough to hold a gallon of water and I heard it slushing around so I got fed up and pulled it up and it was full of water. I believe there is mold in my truck from this water staying in the car and I had to go to the eye specialist for a year and they had no idea why my eyes were hurting and now I know. The mold in my car because of the water. That design flaw in the truck is what caused the problem and I shouldnt have to pay $90 per hour to get it fixed. That's the quote I got from the dealer to find the problem. I smell a class action suit. Anyone else has a design flaw like this? I think the manufacturers should do a recall and fix this. I already paid to repaint because they used very little clear coat on the truck and it started peeling after 4 years which should not happen. Poor workmanship based on saving money. Replies to this message: ataristyle (Aug 22, 2009 9:51 am) tfunk1 (Sep 21, 2009 9:01 am)
#18 of 19 Re: endeavor leak by ataristyle Aug 22, 2009 (9:51 am)
Replying to: ackeegrl (Jun 20, 2009 6:39 pm) Thanks for the help. I poked right behind the hole in the firewall with some wire and was able to get it to drain. Test ride didn't have the water hitting the fan around turns either. Replies to this message: tfunk1 (Sep 21, 2009 9:01 am)
#19 of 19 Re: endeavor leak [ataristyle] by tfunk1 Sep 21, 2009 (9:01 am)
Replying to: ataristyle (Aug 22, 2009 9:51 am) I have the same problem where water collects on the driver's side floor. I have pulled up the carpet so many times, the foam pads have all ripped off, but I have finally found where the water is coming from. The dealer said there is a manufacturer statement about the problem but like everyone else said it costs about $900 to fix it, with a $5 dromet that gets debris in it then the water has nowhere to go but back into the car. I found the hole stuck a wire in there and it felt like I went through something but the water is still coming in. My question is do you know how far I can stick the wire in, and is there anything that can be damaged by the wire?

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