1989 760 turbo Engine Trouble.

Asked by edxpress Dec 30, 2009 at 06:29 PM about the 1989 Volvo 760

Question type: Maintenance & Repair

When I accelerate to when my turbo boost gauge goes into the boost area the engine seems to lose power instead of increasing in power, I have to actually let up off the accelerator in order to regain the power.  I also have a problem in which the engine starts to run badly as if the timing is off or like a vacuum line is malfunctioning and this only occurs when the car has been running for a while at normal engine operating temperature.  Does anyone know what might be causing this in my 1989 760 Turbo.

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