improperly inflated tires will decrease fuel mileage, too. If he's hauling more passengers or cargo than normal or heavier passengers it will cause a loss of mileage, too. Check the wear pattern on the tires, too. Alignment issues will rob MPG.
improperly inflated tires will decrease fuel mileage, too. If he's hauling more passengers or cargo than normal or heavier passengers it will cause a loss of mileage, too. Check the wear pattern on the tires, too. Alignment issues will rob MPG.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
i went through the whole suv and everything looked fine, clean air filter, brand new tires inflated to the right pressure. the one thing i havent done is replace the fuel filter, how hard is that to do? thanks for all the help and advice.
not very hard at all. IIRC, the filter has quick disconnects at both ends. it sits at about the left rear door, just infront of the tank. another thing that can also cause poor mpgs is old plugs and wires. i need to do the fuel filter, plugs and wires on my 01, along with replacing my rims. but the rims will get changed next week
i did the plugs and wires about a year ago, i will try the filter. my father is very against putting any more money into this yukon, but i will try. thanks again.
on a 2003 Yukon it has the same fuel filter as the trucks....UNLESS it is Flex Fuel, then it has the quick connect fittings.
Reduce weivht as much as possible. Install a vacuum gauge and keep it as high as possible while driving..
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
i will pull out the extra seats, and replace fuel filter, how many o2 sensors does the car have, and how many do i need to replace. thanks agian.
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