smerkinseven

ok guys i have over 130k on my stock turbos.. i know i know that is really good.... but i think my secondary turbo is going... any idea of what i can check to make sure. this is only sometimes. when i hit 4-4,5k rpm the power just dies down.... sometimes it doesn't, it just takes off and there is nothing wrong.... any idea's??? i have a a/f ratio and boost gauge on the way.. so this is all the info i have... thanks for your help!!

smerkinseven

anyone???

James Paventi

iTrader: (34)

Have you thought about the vacuum control system?

I'd suspect it long before the turbos themselves. I.E. the solenoids, rubber hoses, actuators, rat's nest, etc.

Besides ... the second turbo is hardly used compared to the primary.

FD Seeker

I have 127K on my turbos and I have recently experienced the same 'one time' problem - at the drag strip no less. Power degraded over the course of three runs to the point that I got a 17.5!! Car temps were normal the whole time. Oddly, the car seemed to run normally on the way home?

After getting home, I tightened an IC hose clamp that may have been a little loose. Everything since then seems normal.

I've just installed a boost guage in hopes of more convincingly identifying boost problems in the future.

turbojeff

iTrader: (30)

Doesn't sound like the turbo is bad. James probably has it right. Check the turbo control system, do a search on boost problems.

I have a theory, the stock turbos actually last a long time. It's the engines that have a short life.

Last thing, how do you know the turbos are original? Are you the original owner? Records since new? Take your VIN # to Mazda and they can do a warranty search on your car. Lots of cars had turbos replaced under warranty, sellers don't always disclose this due to embarrassment.

Jeff

smerkinseven

yeah i tried to check it by just looking for anything that is lose.... is there a better way??? yeah i agree that the secondary is used alot less then the primary... so any ideas on where do i start???

James Paventi

iTrader: (34)

FD seeker

that Avatar is cool enough that I may have to steal it ... hope you don't mind.

It's hard to creat a decent animated GIF in the space that is allowed on this forum.

FD3S_RS

Agree with Jeff, the turbos generally last longer unless abused. When they go, you will have no boost at all, or your car will be smoky like hell at start up I presume.

Tom93R1

iTrader: (2)

When my primary went it made some awful grinding noise and I blew clouds of blue smoke. Turbo failure generally means a bit more than lack of power.
The turbos I put in I bought off somebody for $250, they had 110k miles on them and I have already put 30k more. My turbos have 2x the milage of my car.

smerkinseven

see my secondary makes noise sometimes... kinda like a bov but it's coming when i'm boosting and it's much louder and not as sharp???