SSJ 909

Hey fols,

I currently own a 97 pontiac grand am gt.
And for the last year it has been getting around 11 mpg.
I don't drive a hell of a lot and I am filling it up every week.

Does anyone know why it is happening?
I got a tune up a lil over 2 years ago, and it should have corrected any such problems.
Could it be the ethanol mixture in the gasoline screwing me up?
thanks

Keef

are you serious?

If you own an 8 than drive that.... You'll get better mileage...


Oh ya, and I know why your getting 11 MPG... It's called a Pontiac...

dannobre

iTrader: (3)

Neighbor siphoning your gas

SSJ 909

I don't own an 8. I eventually want to get one.

Which is why I asekd if any1 who knows about cars might know why?
Granted its an older car but it literally just started happening earlier this year and I dont understand why

alnielsen

iTrader: (4)

Get a compression check done on the engine. You may have bad valves or rings. You could also have the A/F ratio checked. The car could be running rich due to problems in the fuel system.

Renesis_8

Something definatly went wrong or broke if it changed over night. Get a compression check as suggested above.
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snizzle

Yeah, a GrandAm is suppose to do way better than that.

Torchmonkey

My last car was a 97 Pontiac Bonneville SSEi...I loved that car. I'm sure your's has the 3800 6 cyl. Mine, even with the supercharger got about 18 in the city and about 26-28 hwy. The engine doesn't have a cam (all electronic). Did you take it to a dealership? I found out a long time ago to put up with a 30-50% increase in service costs, but you generally get a better job (I let a garage with a good rep touch it and I really paid the price!). As with most cars, tuning is the issue and probably your's.

PoorCollegeKid

He probably has the 3.1L 60* V6 in that car (or maybe even the 2.4L I4, which would make the poor gas mileage even more troubling). The '97+ Grand Prix came with versions of the Buick 3.8L 90* OHV V6 (the L36/L67 NA/SC engines) that you're familiar with, maybe that's what you were thinking of? The L67 does have a cam, located right beneath the S/C.

/Parents own a '97 Grand Prix GT

SSJ 909

grand am not grand prix, but yes 3.1 6 cyl is right on.

j_tso

wow, a "something's wrong with my car" + "do a compression check" and it's not a rotary thread?