Guest whele Posted January 29, 2004 Share Posted January 29, 2004 Over the last couple of weeks I have noticed this strange wooshing sound at very high speeds when going over bumps on fast roads. At first I thought it was raod noise, however, just recently it has become more frequent and more noticeable. Last night after driving along in the snow I realised it was the plastic undertray that sits below the engine. It seems to has creased in the centre and dropped down. I remember a similar thing happening to my MKIII. The solution then was to get a sharp knife and trim off the front half of the tray. So, do I just rip it off and run around without any undertray, do I re-trim with a knife or should I get it replaced. Has anybody else experienced problems with these plastic trays at high speed (140+)? How did you resolve the problem? Quote Link to comment Share on other sites More sharing options...
Grazer Posted January 29, 2004 Share Posted January 29, 2004 My plastic undertray died a spectacular death. It involved hitting a rabbit at around 150mph on my private test track There followed a terrible noise from under the car, such that I had to pull over to the hard shoulder, erm, I mean the side of the test track, and remove the remainder of the plastic undertray by unbolting it. I have no plans to reinstate it following the advice from several people that it would be unnecessary. Quote Link to comment Share on other sites More sharing options...
Steve Cargill Posted January 29, 2004 Share Posted January 29, 2004 Originally posted by Grazer I have no plans to reinstate it following the advice from several people that it would be unnecessary. I think there was a discussion about this a few months ago and it is advisable to keep it on. It's to do with the air flow and engine cooling ISTR. Quote Link to comment Share on other sites More sharing options...
Justin Posted January 29, 2004 Share Posted January 29, 2004 Also if you will do 150 on your 'private' test track this is when you need your undertray most. It stops air lifting your car and flipping it over at high speeds don't it? I think Toyota put it on for a good reason. Quote Link to comment Share on other sites More sharing options...
dude Posted January 29, 2004 Share Posted January 29, 2004 Put it back on dude !!!! Dude:flame Dev Quote Link to comment Share on other sites More sharing options...
dandan Posted January 29, 2004 Share Posted January 29, 2004 I've posted a couple of threads/for sale requests on this as I'm after one. It was missing when i got the car. Anybody have one for sale? Has to be off a manual car please.(The autos are different). Regards Dan Quote Link to comment Share on other sites More sharing options...
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