madathlon

OK.. I just took my 88 with a 2.8/700R4 tranny for a 80 mile round trip and Used 20 gal of gas?! seems to be running fin. only code is for a bad speed sensor.. What should I be looking for?

85f-bird

helluva lot more than that? hows ur tune? was the 80 miles the round trip, or was it 80 one way, and 80 back. 20 gallons of gas for eighty miles is like 4 miles to the gallon, so hopefully you can find the extra two cylinders under your hood and the supercharger ontop of that hemi block. OR you're driving a hummer. My car used to get about 25 mpg before ignition replacements, full tune up, and fixing the torque convertor clutch selenoid, now im in the low 30's once i get on the highway.

madathlon

80 miles round trip.. and its running good.. only problem is that the speedo dont work and the speed sensor not working becouse the speedo cable is broken.. I have been over it 6 time sence I got home and cant find a thing wrong with the engine..

xplane

how heavy is your foot? do ya get on it a lot? That will make a huge difference on gas mileage in these cars even on the highway.

madathlon

Not to bad.. I did 70mph all the way.. up hills all the way there ..

Gumby

He didn't say he filled up twice so maybe he assume he has a 20gal tank?


Probably leaking gas somewhere, fuel return line would be my first check.

madathlon

I filled up before I left and than topped off on my way back.. ended up home on (E) ....

Gumby

Has to be leaking. No way the engine could run good and eat that much gas. Might only leak while moving also. Gas leaks are funny like that.

had a pinkie size hole in the fuel line of my wagon. Still ran ok.
But gas leaked like a sive. Probably was leaking like that for over a year and I never noticed it.

madathlon

ok.. So does anyone have a Dia of the fuel system so I know where to look ?

Spazz698

on camaros the fuel lines are pretty easy to spot, just look under the car (you're gonna have to lift it up most likely, at least on ramps) by the rear left wheel for the fuel filter (pretty obvious, only fairly large thing in that area) Then follow that line either way. Cant remember if there's a second one tho, Id have to look.

Nocturnall

I think there's actually 4 fuel lines. Fuel to engine, I think a vent, a return, and something else....