Notices
RX-8 Discussion General discussion about the RX-8 that doesn't fit in one of the specialty forums.

$500 spent on Auxillary Port Valve Replacement

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 08-13-2009, 09:31 PM
  #1  
Registered
Thread Starter
 
aankhein's Avatar
 
Join Date: Jun 2006
Posts: 57
Received 0 Likes on 0 Posts
$500 spent on Auxillary Port Valve Replacement

I have a 2004 MT RX8 with 50,000 miles and just had the APV replaced for $500!!!!

Just had my engine replaced 4,000 miles ago.

Somebody want my car??!

What's next?
Old 08-13-2009, 09:32 PM
  #2  
Formerly Polak Graphics
 
dshiznit1489's Avatar
 
Join Date: Aug 2006
Location: New Jersey
Posts: 1,855
Likes: 0
Received 0 Likes on 0 Posts
I'll take your car if you don't want it...
Old 08-13-2009, 09:42 PM
  #3  
Registered
Thread Starter
 
aankhein's Avatar
 
Join Date: Jun 2006
Posts: 57
Received 0 Likes on 0 Posts
Anybody know if APV getting stuck open is a common problem?
Old 08-13-2009, 09:45 PM
  #4  
Registered
 
RufusVonStorm's Avatar
 
Join Date: Nov 2006
Location: Fullerton, CA
Posts: 411
Likes: 0
Received 0 Likes on 0 Posts
Never heard of it before.
Old 08-13-2009, 09:46 PM
  #5  
Bang Bang
iTrader: (5)
 
EMart11b's Avatar
 
Join Date: Apr 2009
Location: Morgantown, WV
Posts: 779
Likes: 0
Received 2 Likes on 2 Posts
Originally Posted by dshiznit1489
I'll take your car if you don't want it...
Good idea... the cops will probably be monitoring your car.
Old 08-13-2009, 09:50 PM
  #6  
Out of NYC
iTrader: (1)
 
nycgps's Avatar
 
Join Date: Jun 2005
Location: Planet Earth
Posts: 19,881
Received 32 Likes on 30 Posts
APV could get stuck. but most likely its something else.

and when they replace your engine ... argh whatever.
Old 08-13-2009, 10:21 PM
  #7  
FLAME ON!
 
@!!narotordo's Avatar
 
Join Date: Jul 2009
Location: Strip Club
Posts: 948
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by nycgps
APV could get stuck. but most likely its something else.

and when they replace your engine ... argh whatever.
yup. another ripp off. dam shame.
Old 08-15-2009, 11:49 AM
  #8  
Registered
 
freaklinkmusic's Avatar
 
Join Date: Jul 2008
Posts: 324
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by nycgps
APV could get stuck. but most likely its something else.

and when they replace your engine ... argh whatever.

back when i had about 45,000 miles i had a check engine light pop up. We checked it and it said the APV was stuck open. It didnt keep the car from running though. As a matter of fact it ran better than ever as soon as that engine light popped on.
Old 08-15-2009, 01:02 PM
  #9  
Rotary Powered Countryboy
 
04RX8man's Avatar
 
Join Date: Feb 2007
Location: Pittsburgh
Posts: 4,811
Received 1 Like on 1 Post
sucks....but if you're GIVING your 8 away....i'll come get it!....
Old 08-15-2009, 10:19 PM
  #10  
Registered
 
Raptor75's Avatar
 
Join Date: Sep 2005
Location: Chicago
Posts: 1,364
Likes: 0
Received 2 Likes on 2 Posts
I've heard of this issue from other owners. There was a lot of talk about it a couple of years ago. This is the first I have heard of it in a while. The valves carbon lock in these systems and can not be repaired but must be replaced. I remember that this is more likely to happen to those who do not red line their car often. The stuck valve usually does not open till high RPMs.
Old 08-15-2009, 10:44 PM
  #11  
Out of NYC
iTrader: (1)
 
nycgps's Avatar
 
Join Date: Jun 2005
Location: Planet Earth
Posts: 19,881
Received 32 Likes on 30 Posts
Originally Posted by Raptor75
I've heard of this issue from other owners. There was a lot of talk about it a couple of years ago. This is the first I have heard of it in a while. The valves carbon lock in these systems and can not be repaired but must be replaced. I remember that this is more likely to happen to those who do not red line their car often. The stuck valve usually does not open till high RPMs.
yep

when people dont drive their car in the upper RPM range often ---- long enough it gets stuck.

I dont understand some people, they have a car with 8-9K red line but choose to drive it like some Civic ---- keep the rpm as low as they can and thinking its a "good thing to do", retards.

but either way, the OP got ripped. big time.
Old 08-15-2009, 11:45 PM
  #12  
Clemson, NOT Auburn
 
Tigerfootball's Avatar
 
Join Date: Jun 2004
Location: Greenville, SC
Posts: 565
Likes: 0
Received 0 Likes on 0 Posts
I think I remember reading somewhere that, upon start up, the computer will open and shut the two valves that don't open until upper RPM ranges to try and keep them from sticking just in case people don't abide by the redline-a-day philosophy. I could be wrong, of course, but for some reason I think I remember reading it somewhere when I did research on my SSV being stuck open.

Oh yeah, OP got bent over a tree.....
Old 09-29-2009, 11:38 PM
  #13  
Registered User
 
Hobbit's Avatar
 
Join Date: Sep 2009
Posts: 3
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by aankhein
Anybody know if APV getting stuck open is a common problem?
I just joined the forum in large part due to this exact problem. Check engine light yielded APV code per the local Mazda dealer. Code was cleared and I drove it today with no "check engine" light reappearing yet. I am concerned that if I do rev it up too high it will return. I don't have the $$$ to replace it yet. I'm thinking about seeing how this goes until I can afford the repair before redlining again. Any technical and/or personal experiences would be appreciated. Thanks!
Old 09-29-2009, 11:41 PM
  #14  
Out of NYC
iTrader: (1)
 
nycgps's Avatar
 
Join Date: Jun 2005
Location: Planet Earth
Posts: 19,881
Received 32 Likes on 30 Posts
if its stuck by carbon, you can try to free it by "keep pushing the car to its limits"

sometimes it will turn the thing and unstuck the valve.

other than that ...

This will happen if you baby your car a lot.
Old 09-29-2009, 11:44 PM
  #15  
Grasshopper
iTrader: (1)
 
Jon316G's Avatar
 
Join Date: Dec 2006
Location: Streetsboro, OH
Posts: 6,779
Likes: 0
Received 44 Likes on 33 Posts
The APV is driven by a stepper motor.
You can always remove the motor (2 bolts) and spin the gear to feel if its truly stuck or not.
There are positioning sensors inside the motor housing, so don't rule those out when troubleshooting.
Old 09-29-2009, 11:46 PM
  #16  
SARX Legend
iTrader: (46)
 
9krpmrx8's Avatar
 
Join Date: Jan 2007
Location: San Antonio, Texas
Posts: 33,784
Received 452 Likes on 366 Posts
^The APV is driven by a stepper motor.
pwnd.
Old 09-29-2009, 11:51 PM
  #17  
Grasshopper
iTrader: (1)
 
Jon316G's Avatar
 
Join Date: Dec 2006
Location: Streetsboro, OH
Posts: 6,779
Likes: 0
Received 44 Likes on 33 Posts
Originally Posted by 9krpmrx8
pwnd.
Why do you say that?
Just throwing some basic facts out there.
Old 09-30-2009, 12:04 AM
  #18  
PISTONS are for (|)
 
RedRocket8's Avatar
 
Join Date: Sep 2009
Posts: 162
Likes: 0
Received 1 Like on 1 Post
APV usually never has problems, at least from all the research i've done. try taking it to another dealer.
Old 09-30-2009, 12:04 AM
  #19  
Grasshopper
iTrader: (1)
 
Jon316G's Avatar
 
Join Date: Dec 2006
Location: Streetsboro, OH
Posts: 6,779
Likes: 0
Received 44 Likes on 33 Posts
Originally Posted by Tigerfootball
I think I remember reading somewhere that, upon start up, the computer will open and shut the two valves that don't open until upper RPM ranges to try and keep them from sticking just in case people don't abide by the redline-a-day philosophy.
And just to clarify/correct this statement:
The valves open at 6250 RPM and the valves also cycles every time the ignition is turned off to clear carbon.
Old 09-30-2009, 12:31 AM
  #20  
Out of NYC
iTrader: (1)
 
nycgps's Avatar
 
Join Date: Jun 2005
Location: Planet Earth
Posts: 19,881
Received 32 Likes on 30 Posts
Originally Posted by Jon316G
The APV is driven by a stepper motor.
You can always remove the motor (2 bolts) and spin the gear to feel if its truly stuck or not.
There are positioning sensors inside the motor housing, so don't rule those out when troubleshooting.
Mine had APV CEL couple of times.

I did that and it un-freeze it, never came back.

I know it runs a stepper motor, but the metal piece inside can get stuck.

well, what works for me might not work for other people I guess ?
Old 09-30-2009, 12:39 AM
  #21  
Grasshopper
iTrader: (1)
 
Jon316G's Avatar
 
Join Date: Dec 2006
Location: Streetsboro, OH
Posts: 6,779
Likes: 0
Received 44 Likes on 33 Posts
^What I was getting at is by removing the motor and spinning the gear, you can narrow down where the problem really is.
If you can spin it fairly easily, it might be an issue with the motor itself and the valves may not be truly stuck.
If the gear is difficult to spin, then you have a stuck valve or possibly build-up in the rack and pinion.
Not saying that your method shouldn't work, just throwing in a couple more variables/possibilities

Last edited by Jon316G; 09-30-2009 at 05:16 PM. Reason: grammar
Old 09-30-2009, 01:07 AM
  #22  
Out of NYC
iTrader: (1)
 
nycgps's Avatar
 
Join Date: Jun 2005
Location: Planet Earth
Posts: 19,881
Received 32 Likes on 30 Posts
Originally Posted by Jon316G
^What I was getting at is by removing the motor and spinning the gear, you can narrow down where the problem really is.
If you can spin it fairly easily, it might be an issue with the motor itself and the valves may not be truly stuck.
Its the gear is difficult to spin, then you have a stuck valve or possibly build-up in the rack and pinion.
Not saying that your method shouldn't work, just throwing in a couple more variables/possibilities
but 9k said I got pwned ...
Old 09-30-2009, 01:09 AM
  #23  
SARX Legend
iTrader: (46)
 
9krpmrx8's Avatar
 
Join Date: Jan 2007
Location: San Antonio, Texas
Posts: 33,784
Received 452 Likes on 366 Posts
TX

Originally Posted by nycgps
but 9k said I got pwned ...

Haha,
Old 09-30-2009, 01:09 AM
  #24  
Software Engineer
 
DarkLord7854's Avatar
 
Join Date: Sep 2008
Location: Fort Lauderdale, Florida
Posts: 1,376
Likes: 0
Received 1 Like on 1 Post
Originally Posted by Hobbit
I just joined the forum in large part due to this exact problem. Check engine light yielded APV code per the local Mazda dealer. Code was cleared and I drove it today with no "check engine" light reappearing yet. I am concerned that if I do rev it up too high it will return. I don't have the $$$ to replace it yet. I'm thinking about seeing how this goes until I can afford the repair before redlining again. Any technical and/or personal experiences would be appreciated. Thanks!

Read the posts.. you'll notice they all say that if you treat the car nicely, you're more likely to get that problem. However, if you rev it and drive it like a real man, then you won't have the problem. Up to you.
Old 09-30-2009, 10:12 AM
  #25  
Mu ha.. ha...
 
Razz1's Avatar
 
Join Date: Aug 2004
Location: Cali
Posts: 14,361
Likes: 0
Received 3 Likes on 3 Posts
If you got a rebuilt motor you shouldn't have a problem with it.

I would be upset.


You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: $500 spent on Auxillary Port Valve Replacement



All times are GMT -5. The time now is 10:08 PM.