turbo swap - car loses boosting power after initial acceleration

nthnnxn · Post by **nthnnxn** » 04 Jun 2016, 06:59

02 V70 T5 170k... My original Turbo went bad, So I went the cheap n easy route with a used one off ebay from LKQ. Swap out went smooth, but after driving on the highway at higher speeds... The car loses boosting power after initial acceleration. Meaning that after 1-2 seconds of boosting after acceleration... It feels like a power loss and it takes too long for the tranny to shift for more speed.

Does the turbo I installed need to be adjusted? Did I not hook something up correctly? Do I have a different problem other than the turbo now?

Thanks in advance for any help!

Post by **MadeInJapan** » 04 Jun 2016, 08:09

There is a Turbo Control Valve (TCV) and actuator rod...these should hooked up correctly and the rod turned to accommodate your car. The actuator rod will hold your boost in longer... but it's a trade off- it really doesn't change the boost per se... Others may be able to chime in. Did you buy the same size turbo?

nthnnxn · Post by **nthnnxn** » 04 Jun 2016, 09:04

The turbo seemed to be identicle. Fit was perfect for all connections... I didnt draw a diagram of all the hose connections before I took out the original. I found a couple diagrams online (google) that helped. But I spoze I could have gotten 2 hoses mixed up...

Post by **MadeInJapan** » 04 Jun 2016, 11:34

nthnnxn wrote:The turbo seemed to be identicle. Fit was perfect for all connections... I didnt draw a diagram of all the hose connections before I took out the original. I found a couple diagrams online (google) that helped. But I spoze I could have gotten 2 hoses mixed up...

Yes, that would do it!!

nthnnxn · Post by **nthnnxn** » 05 Jun 2016, 07:22

Came back home from work yesterday and ended up losing a lot of oil... As in all of it minus 1 QT. Front main seal blew out... Replaced it... Seems to be the answer to my power loss, because now the car just accellerates constantly how its supposed to.