bad vibe 03 volvo 630

[gorilla550]

My brother has a 2003 Volvo 630 tractor that has a massive shake over 60mph tried everything we could think of to get rid of it. anybody have any suggestions.

 

[QUALITYTRUCK]

if you have not changed the suspension level valve within the last 5-6 months, do it. The updated part, made by Hendrickson, solved a lot of problems that were being had with the previous valves being used. Valve may not leak and hold level while sitting still, but under load going down road are where problems occurred.

 

[biggy238]

Excellent advice. I can't count the times we've had trucks in with level issues, and the customer was ready to buy half the power train.

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[jfaulkner]

Excellent advice. I can't count the times we've had trucks in with level issues, and the customer was ready to buy half the power train.

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Local guy swapped a trans chasing a vibration. $50 leveling valve fixed it.

 

[gorilla550]

Thanks for the replies we've replaced most of the steering and shocks chasing it even replaced the fuel lines because there was air in fuel system we thought might be causing it. It feels like the back-end is coming unglued.