How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Chris (aka-Moose) Your Own Question
Chris (aka-Moose)
Chris (aka-Moose), Technician
Category: Volvo
Satisfied Customers: 43925
Experience:  16 years of experience
Type Your Volvo Question Here...
Chris (aka-Moose) is online now
A new question is answered every 9 seconds

I'm working on a 2003 Volvo XC70 AWD and it has an AW55-51SN

Customer Question

I'm working on a 2003 Volvo XC70 AWD and it has an AW55-51SN automatic transmission. The original transaxle assembly failed and I replaced it with a good used unit with 126K miles. Everything works great except there's a double shift when shifting from 2nd to 3rd a kind of bump-bump. I understand this trans has issues with the valve body but before I run out and replace it I would rather see if you guys can help me. I can't find any repair information on this trans whether it be manuals or the internet.
Submitted: 17 days ago.
Category: Volvo
Expert:  Chris (aka-Moose) replied 17 days ago.

Welcome, I'm Chris (aka Moose) I prefer to work when others don't, I am here around lunch and after dinner till after midnight.

  • Sorry no one has helped yet.
  • This is not an answer to your question, just an inquiry if your still needing/wanting help. Because I believe I can help.
  • I am travelling and on vacation this week but will do my best to get to you when online.
Customer: replied 16 days ago.
I still need help, thanks.
Expert:  Chris (aka-Moose) replied 16 days ago.

I too agree this is most likely the valve body causing this concern. I do have all the repair guides and diagnostic guides. Are there any steps or files you need?

Customer: replied 15 days ago.
I have no information on this transmission. I have DIY Mitchelle online e-auto repair manuals but Mitchelle said Volvo has not released any info on this transmission. I went and purchased a $600.00 valve body and installed it (which was a miserable job in itself) and now I got a hash Park to Drive engagement, a shudder when going into 5th gear, and still the double bump-bump going into 3rd. This double bump-bump feels like 2nd gear is not releasing soon enough before 3rd gear engages, so I get one bump when 2nd releases and a second bump (normal shift) when 3rd engages. Please tell me how to adjust the 3rd gear band, there is no adjusting screw just what looks like disc's inside the servo. How do you adjust the 3rd gear band???
Expert:  Chris (aka-Moose) replied 15 days ago.

I do not believe I am the best tech for you. I am not good at explaining how to do transmission repairs on this model I am going to remove myself from the conversation and opt out making way for someone else to help.