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Discussion Starter · #1 ·
So i bought an Volvo V70XC 2001 model with some minor fails. I have posted an other post about the SRS light, but i would like to post a new one about some other problem.

When i start the engine the RPM goes to about 1500+ and stays for 3-15 sec and then it drops to 900. But after that the car struggles to dont stall and the whole car is shaking, if i press the gas pedal it revs fine and no shaking. There is also alot of constant smoke from the back (when im not pressing the pedal). I did have the rear muffler off for some time since i was going to change the middle muffler, and when that was not installed the car was running alot better and NO shaking. So with the new middle muffler on and the old rear muffler i have this problem.

The mufflers need to be on the car so i can pass the inspection and i am hoping to not buy a new rear muffler.
 
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