The blazer 4.3 4x4 shifts fine through all gears. But going up a hill it boggs down and will shift down to next lowest gear when it gets to 1st gear I have to drive With it racingWith rpm's at 2000. All the time I'm climbing the hill the rpm's are up at 2 thousand, will not go any higher even with pedal to the floor. Was running great on flat road now it's acting fuel starved at any speed. it's starting to hesitate like the fuel pump is going bad but it was replaced 1-2 years a go. I'm getting 62 Pressure at the fuel rail. Hand over exhaust has good pressure no leaks. Did a scan and came up with a code for a bad shift solenoid which is now gone . It shifts just as smooth as can be. I also had the transmission rebuilt 3 years a go. I'm at my wits end. Has new plugs, wires, distrbuter, cap, catalytic converter, mass airflow sensor, fuel filter, Any help or suggestions would be greatly appreciated. Thanks too all in advance. I didn't mention in last post that even with gas pedal to the floor the rpm's never go above 2000-2200 even in neutral.pedal to the floor is 2000 rpm's lift up on pedal just a bit and it will rise to 2200.
posting to multiple sites for ideas.
I'm disabled and not having my blazer running is a real hardship.