MadMat98tL

I have posted before about having water come out under the dashboard from using the A/C. Water begins to drip after 10 minutes of using the A/c, During hard turning large amounts of water pour out by the feet of the driver or the front passenger depending on which way the ar is turning.

Now that it is winter and I only use the heat I haven't had to deal with the water. I have searched the forums for information, though i haven't been able to do anyting to fix the water issue.

I Can't find any diagrams for any condesation drainage tubes coming off of the A/c/heater/evaporator in the dashboard. I dont how to access this or find where water could be trapped..... Thats the first PROBLEM....any help with that?

also...
When I turn harder than usualy there is a small sreeching noise coming from the vents where the heat comes out....... also the flow rate of air increases during the duration of the turn..... Sounds like there is somthing in the vents moving side to side when I turn....... the Air flow change occurs without the sound when lighter turning is done.

I feel like the two problems are related But I don't know how to begin to fix this...... ANYONE having the same problem???

Thanks

TexasHonda

Do you have a 2.5 or 3.2TL? they are different.

On 2.5TL, the drain tube is on the passenger side firewall down low about foot level. It penetrates firewall and joins evaporator housing just above the transmission tunnel on the pax side. It's easy to disconnect the tube at evaporator housing and blow through the tube to check whetehr blockage is in the tube or in the evap housing. Likely it's in the evap housing and due to dust and debris accumulation blocking the drain outlet.

If you can find the drain outlet from the evap housing you can rig use a air jet and Wet Vac to flush water into the evaporator housing and then suck w/ Wet Vac to pull the fluids out, or let them drain out. Start w/ Wet Vac and see what you can suck out first. Then try flushing/draining to clear additional material. You may be able to loosen and remove the accumulated debris enough to restore proper drainage, although the material may stay in evaporator housing and "reassemble" to reblock the drain. I did this flush/drain/vac proc on my 2.5TL to clean the evaporator w/ disinfectant (ConSan 20) to reduce evaporator smell. Some success, but no slam dunk.

Ultimately, only sure fix is to remove the evaporator housing, a big job on 2.5TL and probably 3.2TL also.

good luck

MadMat98tL

Sorry 3.2 Do you have any insight on this?
sounds like a pain

Thanks.

TEx

TexasHonda

Look under the pax side to see if you can locate the 1/2" OD drain line. If you can find it , you can use procedure as described.

good luck

SurfingScotty

Mine was doing the turing thing. I linked it to my blower motor. I had it replaced this past week and it seems to have fixed the problem. I don't know if that helps....?

MadMat98tL

Hey Scott,

just had a few questions. Did you have the increasing of air flow when turning, and that went away when you replaced the blower motor??

Or are you talking about the sound of something sliding inside the dash?

Or the water problem.. Thanks

SurfingScotty

Well, I noticed that when the blower motor WAS working, and on "high", it wasn't blowing at it's full potential; it felt like it was on low or medium. However, when taking a hard turn, the blower sounded like it kicked on to "high" for the duration of the turn, then returned to low/medium after the turn.

I took my car to the dealer to have the blower replaced and to be honest, I don't know if the problem still exists, because in the process of replacing the motor the tech scrached my wood steering wheel, dash, and other parts of the car. So, I'm sporting a '08 TL until the fix all that **** they messed up.

MadMat98tL

Thats nice of them to do, scratch up your car....ha . Keep me posted mate, I really am not sure what to try

main70072

I've noticed that if I run my A/C for a short time about 15 mins, I see no water coming out the drain on the ground. If I run the A/C for a very long time, I get very little water drain coming out the drain tube dripping on the ground. I suspect blockage of the drain in the evaporator. In your post you said to find the drain outlet from the evap housing and use an air jet or wet vac to flush water into it in order to loosen up debris for drainage. Is the drain outlet you are referring to is the part that connects to the black drain tube which drains out the passenger side firewall or is it somewhere else? Also, is it safe to flush water into the evaporator housing without messing up something?

Natack

This is helping me out guys. I have had the same prob with my 3.2. I put my car on a lift and ran a coat hanger up into the tube but nothing came out. So I assume that there is debris inside the housing that intermittently blocks the tubing exit.
Also I did not notice any problems until we just got 3 days of rain, so i figured that somehow water was getting into the car but only sloshed around on hard turns.