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Discussion Starter #1
When my AC is on and I make a right turn, a rainstick-like sound comes from under the dash. Googling the problem brings up a lot of similar issues with other cars, but nothing for the elise.

According to these guys on the Yaris forum (Air Conditioner Noise & Leak? - Toyota Yaris Forums - Ultimate Yaris Enthusiast Site), the issue is a plugged drain tube.



How would I access this tube on the elise?

Has anyone else experienced this and been able to fix it?
 

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It's a black piece of wire conduit (... because Lotus) on the passenger's side front of the car, exiting near the front suspension A-arm pickup.

http://www.lotustalk.com/forums/f101/whats-tube-28416/

To access the top of the tube (HVAC box) is a brutal job (search resistor pack replacement) but the drain end of the tube should be visible if you want to try to run a wire through it or something.

I would also double check that the HVAC compartment drain holes are drilled correctly: http://www.lotustalk.com/forums/1496844-post3.html

If the noise persists, I would suspect a piece of gravel in the chassis somewhere, although I guess if it's only happening with the A/C on your drain theory is probably accurate.
 

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Mine just started doing this. So funny someone else just started having the issue too. Only thing I have done in a while is change the dashboard out with a carbon fiber one. I am going to show this post to my shop, MC Customs, and hopefully they will be able to work it out. They always do!
 

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Discussion Starter #4
It's a black piece of wire conduit (... because Lotus) on the passenger's side front of the car, exiting near the front suspension A-arm pickup.

http://www.lotustalk.com/forums/f101/whats-tube-28416/

To access the top of the tube (HVAC box) is a brutal job (search resistor pack replacement) but the drain end of the tube should be visible if you want to try to run a wire through it or something.

I would also double check that the HVAC compartment drain holes are drilled correctly: http://www.lotustalk.com/forums/1496844-post3.html

If the noise persists, I would suspect a piece of gravel in the chassis somewhere, although I guess if it's only happening with the A/C on your drain theory is probably accurate.
I'll see what I can do about the drain plug. It seems to be working though, it drips a ton after a long drive in the florida heat with the ac on.

Were the drain holes a recall item or do all cars have them?
 

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I'll see what I can do about the drain plug. It seems to be working though, it drips a ton after a long drive in the florida heat with the ac on.

Were the drain holes a recall item or do all cars have them?
They were a service bulletin item. If you're sure the noise only happens with the A/C on, I'm not sure how they could be the culprit - if there's water in there, it'll be in there all the time. But it's probably still a good idea to have them done anyway as you really don't want to deal with replacing the blower motor controller/resistors if they get wet.
 

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Discussion Starter #6
They were a service bulletin item. If you're sure the noise only happens with the A/C on, I'm not sure how they could be the culprit - if there's water in there, it'll be in there all the time. But it's probably still a good idea to have them done anyway as you really don't want to deal with replacing the blower motor controller/resistors if they get wet.
Yeah, it's only when the AC is on.

Another interesting note, the noise is louder on higher ac settings. You can hear it at 1, but its louder at 3.
 

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Maybe you have leaves in your blower box??? The factory seal can be horrible. Mine was just awful and doing no good, so I had to redo the seal when the service bulletin was being done.
 

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I had this problem but it turned out to be birdseed that a mouse or something stored up there during the winter months when the car was in storage. When I takes turns now little seeds hit my shins.
 

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Discussion Starter #10
I had this problem but it turned out to be birdseed that a mouse or something stored up there during the winter months when the car was in storage. When I takes turns now little seeds hit my shins.
Your problem was dependant on whether or not the AC was on?
 

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I had about 100 empty nuts in my dash on my last Elise. Found them doing the switch pack replacement.
 

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Mine only happens when my blower motor is on. Doesn't matter if I have the AC on or off. As long as its blowing out air, I get the noise.
 

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Possibly a trunk shaman.
 

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Discussion Starter #15
Mine only happens when my blower motor is on. Doesn't matter if I have the AC on or off. As long as its blowing out air, I get the noise.
I haven't tested this. I suspect it's the same for me but I'll try tomorrow.
 

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I haven't tested this. I suspect it's the same for me but I'll try tomorrow.
Yea just turn the AC part off but the blower fan still on.. it'll still happen.
 

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When my AC is on and I make a right turn, a rainstick-like sound comes from under the dash. Googling the problem brings up a lot of similar issues with other cars, but nothing for the elise.

According to these guys on the Yaris forum (Air Conditioner Noise & Leak? - Toyota Yaris Forums - Ultimate Yaris Enthusiast Site), the issue is a plugged drain tube.



How would I access this tube on the elise?

Has anyone else experienced this and been able to fix it?
Any updates?
 
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