Question about 1999 Pontiac Grand Am GT
I just purchased a 2001 Grand Am, I filled it up and reset trip meter. i went 56 miles and then filled it up again. I calcutlated 15 miles to the gallon. I need some advice on getting better gas milage.
I was just listening to Car Talk on NPR (Click & Clack) talking about this exact thing in response to a callers complaint about poor mileage. Their advise was to: a. check the compression and b. check the thermostat.
With your 2001 being 7 years old your mileage is probably under 100,000 so your compression is probably OK. If you do check it the good compression should be about 150 PSI; if it's down around 100 PSI that could account for the poor mileage.
As for the thermostat if your engine temperature doesn't get un into the normal range fairly soon, the computer thinks the engine is cold and adjusts the choke accordingly which uses more gas
Hope this helps Good Luck Loringh
Posted on Oct 25, 2008
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Posted on Jan 02, 2017
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