Won't pick up Speed on 1990 Isuzu Trooper

It's actually an 89'. When I get close to 25 rpm my car starts jerking, and then I switch gears, and push the gas pedal down to the floor and it feels like I'm riding the break! it won't go faster. What's the problem? what do I need fixed?

by in Layton, UT on February 26, 2010
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4 answers
ANSWER by , February 27, 2010
Try a seafoam treatment, it really does wonders, But it could be your torque converter in your transmission, or failure to get enough fuel to the engine.
ANSWER by , February 26, 2010
I would check for a restriction in your exhaust system, like a plugged Catalytic Converter.
ANSWER by , February 14, 2011
Fuel filter if you are lucky or fuel sock in the tank if you are not
ANSWER by , January 20, 2011
it is the cataylic conveter stoped up im having the same problems with my 1995 ford escort 99.9% sure