Mazda Rotary Club

General => General Technical => Anything Engine/Performance/Tuning related => Topic started by: Tango on May 18, 2007, 07:41:59 PM

Title: HELP!!! wwhhooosshhing noise!! ???
Post by: Tango on May 18, 2007, 07:41:59 PM
please please please please can someone help??
 
drove the car out today....all was well & good...
 
on my way home i went to accellerate in 2nd and where i would only usually hear the "whoosh" noise when i let my foot off the accelerator it started to make a whooshing noise as i was accelerating!?? it does it in all gears (apart from 1st) and only comes in when i accellerate then gets louder as i continue to accelorate??
 
thought it could be a vac pipe off or something but only thing i can see that isnt attached to something is a pipe that comes from the back of the plenum to a small blitz thingy then goes down behind the rad but thought that was just a breather pipe?? any ideas?? got its MOT in the morning too :2Confused any help really really appreciated!!
Title: HELP!!! wwhhooosshhing noise!! ???
Post by: LRP on May 18, 2007, 07:45:08 PM
sounds like a split intercooler pipe my guess lower one if it still has standard cooler?? giv it a sqeazze
Title: HELP!!! wwhhooosshhing noise!! ???
Post by: mikeyh on May 18, 2007, 07:45:51 PM
try takin pics and post up here might help abit
Title: HELP!!! wwhhooosshhing noise!! ???
Post by: Tango on May 18, 2007, 07:48:13 PM
(http://img.photobucket.com/albums/v207/tango30_1/enginewhhoosshhh.jpg)
Title: HELP!!! wwhhooosshhing noise!! ???
Post by: James B on May 18, 2007, 07:54:12 PM
Techno numpty here but could it be the waste gate is stuck open ......... Every so often, especially if I have had a period of not caning the car when I accelerate I can get a whooshing sound as I accelerate ..... a damn good thrashing usually sorts it out so it holds the boost as I accelerate.

James
Title: HELP!!! wwhhooosshhing noise!! ???
Post by: John_Hudson on May 18, 2007, 07:57:15 PM
I had that problem once and it was due to my elbow to throttle body not being done up properly ( oops ! )

check your ic piping :D
Title: HELP!!! wwhhooosshhing noise!! ???
Post by: Tango on May 18, 2007, 08:00:58 PM
Quote from: James BTechno numpty here but could it be the waste gate is stuck open ......... Every so often, especially if I have had a period of not caning the car when I accelerate I can get a whooshing sound as I accelerate ..... a damn good thrashing usually sorts it out so it holds the boost as I accelerate.
 
James

that would make sense..... if i was going off the sound its making.... is it safe (for the engine) for me to give it a good thrashing?? if so.. ill be back in 15 mins.. :Thumbs-up
Title: HELP!!! wwhhooosshhing noise!! ???
Post by: Tango on May 18, 2007, 08:04:40 PM
Quote from: John_HudsonI had that problem once and it was due to my elbow to throttle body not being done up properly ( oops ! )
 
check your ic piping :D

ill check over all the pipes & go give it a good drive .... WGT gave her a once over a week ago.... im assuming they\'d check for loose piping e.t.c.... maybe.... dunno.... il check as much piping as i can get to before i go out....
 
can anyone confirm that the pipe with the orange arrow on the pic shouldnt actually go to anything?????????
Title: HELP!!! wwhhooosshhing noise!! ???
Post by: interloper393 on May 18, 2007, 08:12:15 PM
nah thats just a air feed i think for the hks filters, i took mine off lol.. and intercooler pipes man, ma last car did exact same.. only acceleration made the noise
Title: HELP!!! wwhhooosshhing noise!! ???
Post by: mikeyh on May 18, 2007, 08:37:32 PM
that pipe should go to the airpump but since yours is removed im thinking it should`nt fit to anything.

id check all the plastic bits make sure theres no broken ones.
Title: HELP!!! wwhhooosshhing noise!! ???
Post by: Tango on May 18, 2007, 09:19:18 PM
thrashing complete........ no joy :confused: .......
 
although when i hit the really high notes it does go away a bit ...
 
im baffled............maybe after the MOT i might try running her up to WGT & see what pip thinks (if they can fit me in)
 
its quite a loud ssshhhhhHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH type noise???
 
if it is the wastegate is there any other way of getting it working??
   any more ideas anyone??
Title: HELP!!! wwhhooosshhing noise!! ???
Post by: James B on May 18, 2007, 09:36:10 PM
Hmmm ..... I think Carl told me that sometimes this can happen and booting the ECU can fix it .......... I think you just disconnect the ECU and then re-connect it ...... this cropped up a while ago and I have a terrible memory so not really sure ........ contact him and see what he says.

Carl Hayward at Hayward Rotary

Have to say though that if this is happening in all the gears then it is more likely to be something leaking.

It only tended to happen to me when I floored it at low revs in say 4th gear.

J
Title: HELP!!! wwhhooosshhing noise!! ???
Post by: antnicuk on May 18, 2007, 09:39:40 PM
its a split i/c pipe,  only shows when under boost.   stick your head in engine bay and rev it hard.  you will see/hear it.
Title: HELP!!! wwhhooosshhing noise!! ???
Post by: Tango on May 18, 2007, 09:43:34 PM
tried that earlier & it doesnt seem to happen when just revving it... only when actually driving & putting my foot down a bit...?????????
 
i need a "crying" smily lol :2Confused :2eek :3Confused
Title: HELP!!! wwhhooosshhing noise!! ???
Post by: James B on May 18, 2007, 10:22:14 PM
The only pipe I split was the flat hard plastic one under the strut brace ..... think that is quite common.

J
Title: HELP!!! wwhhooosshhing noise!! ???
Post by: Tango on May 18, 2007, 11:06:07 PM
ill have a peek at it in the morning ....cheers everyone!!! much appreciated! if i manage to get to WGT tomorrow ill let you know what it is/was:Thumbs-up
Title: HELP!!! wwhhooosshhing noise!! ???
Post by: Juriën on May 19, 2007, 01:21:01 PM
Try the boost pipe coming off the y-pipe. It\'s the one that comes up from the turbos towards the alternator, on the right of your coolant filler neck. That could very well be the problem. If it\'s loose sometimes it\'s hard to spot. I\'ve had the same thing happen to me.
Title: HELP!!! wwhhooosshhing noise!! ???
Post by: Tango on May 19, 2007, 05:19:36 PM
a quick trip to WGT & £25 later it was sorted in a Jiffy, was a small pipe connecting to the plastic pipe...oh ... im crap at descriptions... it was here:
 
(http://img.photobucket.com/albums/v207/tango30_1/wwhoosshh.jpg)
Title: HELP!!! wwhhooosshhing noise!! ???
Post by: Juriën on May 19, 2007, 05:32:57 PM
Could have saved you the trip to WGT and the 25P as that was exactly what I was referring to in my post. If only I noticed your post earlier..:D
Title: HELP!!! wwhhooosshhing noise!! ???
Post by: Tango on May 19, 2007, 11:39:33 PM
cheers everyone :o) - didnt mind the trip to WGT its only 35 mins away from me anyway and if i let them do it then less chance of me ballsing something up lol - was reassuring to hear the opinions of people on here as i was getting a little twitchy wondering if it was something more than what it turned out to be........ once again the members on this site have, in my opinion, once again shown how good this place is for help & advice & the more than covered the membership fee..... although im Very new to the rotary world, i think im going to be into it for many many years to come..... im hooked!! cheers again again guys really appreciated, if i ever bump into you, ill buy you a pint!