Hey Guys. This is kind of a vague question so forgive me in advance, but here goes.
Ruling out a worn out engine just tired from a lot of miles, it has a clean air filter, no CEL, no miss or stumbles on acceleration, spark plugs are good, the parking brake is disengaged and not dragging, nor are the brake brakes,
the transmission is not slipping, I’m not towing a trailer, the tire pressures are good, the A/C is off, no change in average fuel mileage noticed and my Ex mother-in-law is not weighing down the vehicle from back seat like only she could, is there anything specific to our vehicles that would cause them to run sluggish? It’s idling fine. Acceleration is smooth. I have just recently noticed a very small exhaust leak noise, but beyond that all seems to be operating normally. It’s just that the truck doesn’t seem to have any pep. A highway speeds I feel as though I need to mash the pedal to try to kick down two gears to pass a car unless I want to wait 5 minutes. Ok this is exactly what it feels like. I feel like I’m driving a car with a small four cylinder engine when it used to have an IL6 (which is does I could have had a V8!). Bad joke. Anyway that’s the best way I can describe it. I feel like it’s lost 50 HP.
Having driven this model of envoy for 18 years I can usually detect somwthing isn’t right. The only thing feel is off is the amount of power.
Not too long ago I installed a Trans Go shift kit or transmission thingy. Personally I think it shifts into second gear a little too hard, but whatever. I have a new catalytic comb. So that’s not plugged up. I just don’t know what else beyond dirty injectors might be the culprit or am I imagining it, so thought I’d ask the advice of the friendly crew on GMTnation. The BEST darn car forum on the internet and I mean that sincerely. Thanks!
I’m tempted to once again have PCMforLess do my ECM because that was one of the most dramatic performance improvements ever. I loved it but the dealer twice reflashed me when I’m for warranty service.
I also had a cracked head that I think happened while it was programmed but I blew that off to me just driving it like an animal most of the time.
Obviously I’d want to fix any problems prior to a new flash anyway. With ALL of that said, it shouldn’t need any enhancements to feel peppier than it does. Thank You All!
Ruling out a worn out engine just tired from a lot of miles, it has a clean air filter, no CEL, no miss or stumbles on acceleration, spark plugs are good, the parking brake is disengaged and not dragging, nor are the brake brakes,
the transmission is not slipping, I’m not towing a trailer, the tire pressures are good, the A/C is off, no change in average fuel mileage noticed and my Ex mother-in-law is not weighing down the vehicle from back seat like only she could, is there anything specific to our vehicles that would cause them to run sluggish? It’s idling fine. Acceleration is smooth. I have just recently noticed a very small exhaust leak noise, but beyond that all seems to be operating normally. It’s just that the truck doesn’t seem to have any pep. A highway speeds I feel as though I need to mash the pedal to try to kick down two gears to pass a car unless I want to wait 5 minutes. Ok this is exactly what it feels like. I feel like I’m driving a car with a small four cylinder engine when it used to have an IL6 (which is does I could have had a V8!). Bad joke. Anyway that’s the best way I can describe it. I feel like it’s lost 50 HP.
Having driven this model of envoy for 18 years I can usually detect somwthing isn’t right. The only thing feel is off is the amount of power.
Not too long ago I installed a Trans Go shift kit or transmission thingy. Personally I think it shifts into second gear a little too hard, but whatever. I have a new catalytic comb. So that’s not plugged up. I just don’t know what else beyond dirty injectors might be the culprit or am I imagining it, so thought I’d ask the advice of the friendly crew on GMTnation. The BEST darn car forum on the internet and I mean that sincerely. Thanks!
I’m tempted to once again have PCMforLess do my ECM because that was one of the most dramatic performance improvements ever. I loved it but the dealer twice reflashed me when I’m for warranty service.
I also had a cracked head that I think happened while it was programmed but I blew that off to me just driving it like an animal most of the time.
Obviously I’d want to fix any problems prior to a new flash anyway. With ALL of that said, it shouldn’t need any enhancements to feel peppier than it does. Thank You All!
