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Re: AW71 Lock Up Converter Adjustment 700 1989

posted by  someone claiming to be abe crombie on  Tue Jan 12 16:10 CST 1999 [RELATED]

A US market spec Volvo rear wheel drive turbo doesn't have a locking converter. If yours has a locking converter the ID plate on driver's side of gearbox will read "03-71L" or possibly "03-70L" if someone has changed it.

The lockup control in either case is a function of it being in 4th gear and governor pressure reaching approx 50 psi. A lock/unlock at threshold of locking speed can be caused bt worn bushing in tailhousing allowing the gov. pressure to fluctuate. This can be checked by attaching a trans press. gauge and reading the gov. pressure at speeds around 45-55 mph to see if the pressure is stable as speed is brought that range gradually.





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