Nick1994
$100 site donor 2024
I've always had a hard time with how unresponsive electronic GM throttle bodies are. Well, at least the older ones. And I'm a GM guy! The ones I have driven have no power off the line, It's like they fall flat on their face. From a stop if you floor it, it slowly creeps up the RPMs but once they get moving they have plenty of power, no complaints there. So 20mph+ if you stomp on the gas they'll move down the road in a hurry. The cars that have done this to me are: 2002 Chevy Trailblazer LTZ (4.2), 2-2003 Chevy Silverados (5.3), 2005 Chevy Tahoe (5.3), and a 2006 Isuzu Ascender (4.2). On any of these vehicles, they won't even chirp the tires when taking off at all, and traction control isn't even kicking in.
I've towed trailers with the Trailblazer & the Ascender, and while the Trailblazer had MUCH more power towing (3.73 gears, probably higher gears in the Ascender), they both have no power off the line, but do just fine once moving.
My comparison to this is my previous 1996 Chevy C1500 Silverado 5.7L, which would lay down 2 black stripes that were probably close to 15 feet long. It always had power right off the line (it had an actual throttle cable).
It makes it really annoying driving in the mountains too because when giving it a little more gas, sometimes they'll just hop down to 2nd gear and scream up the mountain, it's too hard to "feel" when it's going to shift. So what's up with it?
I've towed trailers with the Trailblazer & the Ascender, and while the Trailblazer had MUCH more power towing (3.73 gears, probably higher gears in the Ascender), they both have no power off the line, but do just fine once moving.
My comparison to this is my previous 1996 Chevy C1500 Silverado 5.7L, which would lay down 2 black stripes that were probably close to 15 feet long. It always had power right off the line (it had an actual throttle cable).
It makes it really annoying driving in the mountains too because when giving it a little more gas, sometimes they'll just hop down to 2nd gear and scream up the mountain, it's too hard to "feel" when it's going to shift. So what's up with it?