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Old September 5th, 2019, 05:55
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cruiser54 cruiser54 is offline
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Join Date: Nov 2009
Location: Prescott, Az
Posts: 6,684
Re: Bad gas mileage 10-11 MPG

Ever pulled the distributor cap and looked inside?

Don't use starting fluid to check for vacuum leaks. It can travel whereas carb cleaner and brake cleaner stay a liquid much longer.
A common issue is loose intake manifold bolts. Snug them up as needed.
The vacuum line from the intake manifold to MAP sensor is critical. any slight leak and the fuel mixture goes richer.
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