98 b5 a4 2.8Q auto w/ 115K.

When shifting into 4th, and with the gas pedal held constant, I notice an upward RPM surge of up to 300rpms before the gear is engaged. The same happens going from 4th to 5th. The first 3 gear changes are silk smooth no matter what speed the car is travelling at.

I would like to know if it's normal for the car to do the above, or should I be concerned?

Thanks

 

my car does this on the way to 3rd gear. i'll be doing an automatic transmission fluid flush and change along with replacing the transmission mount to see if its resolved.

 

No,it isn't normal,check your automatic transmission fluid level.

 

Do you recommend blauparts tranny flush kit or is there a cheaper alternative?

 

NO,that kit is fine...get it.

 

The Blauparts kit works great. They also include a few extra bolts for the pan, which saved my bacon because I stripped one of them when taking them off.

 

That happens to me, too. My tranny has been flushed twice, and it still does it, so I'm not sure if a flush will do the trick...

 

When/if you do the tranny flush, check the magnets in the pan for gray matter, if so thats metal from your clucth packs and start saving.

 

that's just great. I was really planning on keeping the car but I guess I won't be. Next week is flush day. fingers crossed.

 

I hope that it's just low fluid but just giving you a heads up. BTW DO NOT FLUSH just drain and refill/change gasket/filter. Flushinng can do more harm than good sometimes.