Fuel Problem

:banghead: I have a 89 chev suburban that I just bought with only 76thousand original miles on it for my wife (Soccer, Baseball, Football Mom). I’ve just experience fuel starvation problems. It runs fine at idle but as you drive it feels like it’s running out of gas. The funny part is if I floor it when it starts cutting out it takes off like a rocket. I have already replace the fuel pump thinking that was the problem from the get go-NOT. Do you have any idea what it could be?

Maybe the fuel filters?

The odd part is that your car idles fine. That rules out things like vacuum leaks, emissions system, or egr (although it can't hurt to check them). Maybe the TPS or a problem with the throttle linkage being loose?

My vote would be the fuel filter. Then look into the ignition, wires, plugs, cap, rotor and sensors.

Before you put a lot of money in this you may want to have it run on GM diagnostic computer. But try the fuel filter if you haven't put one on lately.

does it have newer gas? and are your injectors clean. i would suggest cleaning your injectors and replace your fuel filter in the process...that should fix it