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I have a 1994 MX-5 (Miata).

The problem is that after 5k RPM (read : as soon as I hit 5k - all the way to redline), there's something in my drivetrain that makes this whistling noise.

It's not air/exhuast/fumes of any type escaping from anything - it's like something metal spinning around the driveshaft and after it gets into the power band (after 5k PRM) it just spins a little loose and makes that whistling noise...

When I let off the gas (engine brake - coast) in 2nd and 3rd gear, it makes this rasping noise at 3k RPM. It sounds like a small, broken high speed fan blades scraping on sandpaper for a second... kinda sorta sounds like a card-board made wastegate... something is definately not right down there. Sounds cool though.

2006-07-11 07:36:39 · 4 answers · asked by Anonymous in Cars & Transportation Car Makes Mazda

* update *

[In response to Bobsled]

That reminds me. I replaced my master/slave cylinder because I had a leak... which has been causing 2nd gear to grind. BAD. Even 3rd. I just have to shift into 2nd slowly. So, naturally I assumed it to be the synchro whenever I first started having the problem. But since I knew my clutch wasn't properly disengaging (air in hydraulic lines - that got fixed) I thought that's what was causing it. Well, it's still grinding.

Gearbox feels a bit notchy too. Yea. Probably time for a new transmission. Gearbox too? ... dunno how reliable those are. Probably not very with me driving.

2006-07-11 07:47:10 · update #1

4 answers

Does it make the noise at 5K in neutral? Many Mazdas make a buzzing noise from exhaust shielding resonance. Only comes in at certain RPMs.

You may have ruined your syncros. Second gear syncro always gets most wear anyway. Forcing it when clutch not fully disengaging may have damaged it.

2006-07-22 22:47:13 · answer #1 · answered by the mazda mechanic 4 · 0 0

difficult determination. commonly Toyota is more suitable strong than Mazda and they seem to be a lot less extreme priced to service. even if, the MX5s were in basic terms so undemanding as Toyotas interior the previous. what number autos have a battery which will very last 15+ years? it really is amazingly elementary on the Miata MX5. one project to judge is that the MX5 Miata had some engine woes round 1999-2000 style 3 hundred and sixty 5 days from what i have been advised by skill of a few Mazda techs. the different 3 hundred and sixty 5 days will be positive inspite of the actuality that. nevertheless it really is a greet motor vehicle tochronic. i'm a faithful Toyota fan and that i nevertheless imagine the Mazda MX5 is a miles more suitable thrilling motor vehicle tochronic than the MR2 in corners. it really is preserving a lot because as you recognize the MR2s will always positioned a grin on your face.

2016-12-10 08:00:42 · answer #2 · answered by ? 4 · 0 0

if it is a manual transmission, is the syncho for the gears...take it to a transmission shop

2006-07-11 07:39:31 · answer #3 · answered by bobsled 5 · 0 0

So what is the question?

2006-07-11 07:39:20 · answer #4 · answered by Mike Hunt 5 · 0 0

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