Rpm surge on 3.2l bt50

[loosegoose]

Hi all just seeing if anyone else out there has experienced an rpm surge when cruising along. It's a 2012 bt50 auto and over the last week it's slowly developed a surge if about 200rpms spoke to a mechanic near our yard he reckons it's the torque converter.
Cheers ash

Hi did you fix the problem .mine is doing the same thing auto needs work to.

 

[Dan79]

Just wondering have you got it fixed I have a 2013 Mazda bt50 auto and it’s doing the exact same thing I will drop it off at a automatic transmission mechanic this week.

 

[asho]

Yeah mate I had to get the auto rebuilt not cheap either

 

[Dan79]

Yeah I've worked out it's not going to be cheap already costing $2500 & more work to be done tomorrow, do you know what they replaced or fixed with the auto rebuild, replacing the valve body $1200 & some sensors ???

 

[asho]

Yeah it’s a pain man, mine was 6500 full rebuild. It hurts handing it over

 

[Dan79]

Did they replace the torque converter ?

 

[asho]

Not sure mate it was 12 months ago I have the work order for it. From memory they did

 

[Dan79]

Ok thanks heaps mate the mechanic said after doing what he has done 2 things left it could be the Valve body & or the torque converter & he's ordered the valve body

 

[asho]

Hopefully it’s not like mine it was cooked I definitely had it replaced from memory there was gear shavings through the lot. Does it chirp downing gears?

 

[Dan79]

No it doesn't make any weird noises just the revs up & down when cruising along at 50klms or 70-80klm on the freeway 100+ it's fine & also when your accelerating it's fine, picked it up from Mazda last Thursday they say it's fine & it's not $694 & they replaced the glow plugs