I have a 2000 ford expedition 5.4 not running right. If you step on the gas quick at idle it will Give a slight hesitation and then rev up. While driving it sputters some but is really bad when it needs to down shift. I changed the fuel filter. Nothing. I cleaned the maf sensor. Nothing. I am not positive the maf sensor is good though. It had a lean code bank one and two which I cleared and they have not returned. Before I spend over 100 dollars for a maf sensor I thought I'd check here for ideas??? Thanks
OK, try cleaning the MAF and the throttle body good.........it seems that these new vehicles with computers will train themselves to run "dirty" over time.......when you change the battery, it resets the computer, and it thinks that it is dealing with a 100% clean engine......cleaning the MAF and throttle body good should take care of the problem
I had the same problem with my truck this spring.....I changed the battery out, it would idle, and accelerate, but as soon as you let off of the accelerator it would shut down.......it was also starved for power a little.......but I cleaned the MAF and throttle body out, and it took care of the problem.....
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