New answers tagged fuel-system
It could either be a bad fuel pump or a bad throttle positioning sensor.
I'm not a mechanic and have minimal knowledge with cars, so I had it towed to a garage. The mechanic there said it was a bad fuel pump. It's a rather expensive replacement with parts running about $250, and labor costing about $250 (they have to remove the gas tank and everything)
You may wish to read up on gasoline ethanol phase separation. This is an unfortunate scenario where ethanol in your gasoline blend absorbs too much water from the atmosphere and separates into two layers. The bottom layer contains a water/ethanol mixture which kills the engine, the top layer contains a rich mixture of gasoline and a smaller portion of ...
It does seem like a fuel system problem. Not having been maintained properly, as you say, would only make any problems worse. You need to have a scan on the system. A scanner off of the net such as Torque Pro, or similar, may point you in the right direction of the fault before, that visit to your favourite repair shop. You mention you might think you have ...
One easy way to determine this is to reset the odometer at each fill up. Assuming you fill the tank to the top, you can determine your average mpg by dividing the gallons added by the miles since last fill. Do this a few times when you would expect to be at 1/2 tank. Then to be safe, always fill up no later than 1/4 tank according to the known tank size.
Looking at fuelly, the average MPG for a 2002 is 23.3. Only one of those vehicles is called out as being in the GTP trim but it keeps up with the average. Here are the details. 17.5 gallons x 23.3 mpg = 407 mile range. Changing the fuel pump on your GTP looks easier than many vehicles as the tank doesn't need to be dropped: ...
Your Pontiac tank is listed at 17.5 gallons. Your Pontiac fuel consumption is given as 26 mpg. Quoted Miles Per Gallon(mpg) are always optimistic. If you assume your mpg is 20mpg, then from a full tank fill-up you will have a range figure of around 350 miles. The Low Level warning light will come on a correctly working tank unit, but this may not be the ...
Are you able to ask the previous owner for any history that could point you in the direction of the fault? This needs going back to basics. Check that you actually have petrol in the tank, could be anything in there, check for water or diesel or any other contamination. Don't go by the fuel gauge for tank level, it might be mis-reading. Take out the plugs, ...
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