Is it normal for the 1990 740 GLE Volvo Wagon 16 valve to sort of whine while excelerating. The engine idles well. It has a new timing belt and all new belts. It has a new alternator. I change the oil regularly. It sounds like a high pitched sound only when I give it gas. Someone told me it was a normal sound of a Volvo. There are no leaks. The gas mileage is about 150 per tank is this good or bad? And does the gas mileage have anything to do with it? I changed the fuel relay recently since it was stalling, and it has not stalled once since replacing this a month ago.
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