Why sudden hesitation and really poor gas mileage

Sandra Johnson

Asked by Sandra Mar 07, 2013 at 07:21 AM about the 2001 Buick Century Custom

Question type: Maintenance & Repair

It is driven in mountain terrain and
dusty conditions. Only got approx. 40
miles out if a quarter tank of gas.
Heavy Hesitation when accelerating

3 Answers

Sandra Johnson

Maybe fuel filter


It won't be anything that wears out if the problem started suddenly. Most likely a sensor that failed. -- It's a 2001 car so it has around 150,000 miles. A likely suspect would be a O2 sensor. If there is a CEL, get the codes read at the parts store.

Andrew Olsen

fuel filter, maybe but I'd think ignition or sensors as tenspeed said. Getting the codes read would take alot of guess work out.

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