1999 Chevrolet Tahoe LT 8 Cyl 5.7L
i have a cap on my running rpm limit
after the tahoe has been running for a while the engine will get to a point that it will not get over 3500 rpm, and the longer it runs the lower that cap will get to the point that i cannot hold highway speeds and i cannot accelerate hardly at all.
ASE MASTER MECHANIC TEXAS 1/17/2011
MY friend the first thing I would check is the exhaust system, the converter is most likely plugged smooth up