2004 chevy trailblazer_lt
Hello all, I have an '04 trailblazer with 4.2L. Within the past week it seems to run sluggish around 1500-2000 rpm, no power. If I give it more gas it'll down shift and power is back, seems normal at the higher rpms (almost like hitting the power band in a two stroke dirt bike). I have an aftermarket "Scan Guage" pluggedinto the obdII port all the time to monitor gas mileage, trans temp, coolant temp etc.... Seems like it's a bit on the hot side lately as well, 211-220 f where it was usually 206 f before with normal driving. The temp still shows 200-210 on the instrument cluster though; normal... I put new plugs in about a year ago, Bosch Platinum, fuel injector cleaner, installed a new radiator in January (the trans line into the radiator was leaking at the fitting on the radiator regardless of what I did. I wound up by-passing the radiator and using auxillary cooler for trans fluid only). The trailblazer ran fine after all this though and only started acting sluggish recently. If anyone has had similar issuess and found a fix I'd appreciate any advice.