Bad intake gasket, If I fix it will I get better MPG

[12sec5ltr]

just wondering if I fixed the sucking intake gasket if it would give me a little better gas mileage. I have a 99 with a 5.2 What are the epa estimates on these things anyway. I get about 12 mpg highway without my trailer and 10 mpg pulling a 6x1o enclosed trailer with a 550 lb four wheeler in it. trailer probably weighs 1100 lbs. I know these things don't get great gas mileage but 12 on the highway come on.

[DurangoDave]

My best ever highway: 15.8mpg. (1999 5.2, not towing).

[scrindy]

Yes it will help on your Fuel economy. Your sucking more air and changing you fuel ratio. I am not sure but you may have burned up you O2 sensor as well. Not sure if it will trigger a code. And thast will keep you in cold start or closed loop in the ECM
Hope it helps.
Scrindy

[12sec5ltr]

Originally Posted by scrindy

Yes it will help on your Fuel economy. Your sucking more air and changing you fuel ratio. I am not sure but you may have burned up you O2 sensor as well. Not sure if it will trigger a code. And thast will keep you in cold start or closed loop in the ECM
Hope it helps.
Scrindy

Thanks, I'll check the O2 sensor out after I'm done. I have a professional scan tool that can check the sensors condition

[12sec5ltr]

Originally Posted by 12sec5ltr

Thanks, I'll check the O2 sensor out after I'm done. I have a professional scan tool that can check the sensors condition

Getting about 14.5 on the highway now after the intake fix. so I did get better. Plus now I'm not spending money on two quarts of oil every gas fill up so all in all it was a sucess.