terrible gas mileage. HELP!!!!!
#1
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terrible gas mileage. HELP!!!!!
Like the title says, my gas mileage is down to a measly 6.7 mpg. My 5.3 is internally stock but i have a mac intake, electric fans,Full length headers,no cats,mac mufflers,transgo hd2,2nd and 4th billetservos,tb stall,3.73 gears and a predator tuner. I also have 24's on the truck and i know that accounts for some of it,but this sucks for it to be that low. I have a 224 cam that i want to install,but i'm afraid that the mpg will get even worse. Will a decent tune help? Thanks for any help you guys can give.
#2
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A real tune will help. Only thing you list that would suck gas are those 24" wheels and maybe a heavy right foot? Fuel filter? The 224 cam will lose you some bottom end so a higher stall torque converter would be good to go with it, but you'll lose a little more mpg around town.
What year is yor truck?
What year is yor truck?
#7
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I dont know how you could get mileage that low. Definitely tune for the headers and lost cats. The exhaust may have the A/F ratio running rich. Check for any obvious exhaust leaks. Make sure you haven't over oiled your air filter; clean the MAF sensor with an electrical cleaner spray if it is oily or dirty.
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#10
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Originally Posted by dirtdiggler02
Does anyone know if taking the screen off of the maf will affect gas mileage? I don't know what else to try.
Not the solution. Have you gotten a tune yet?