5.3 lack of power
Posted 22 August 2004 - 06:54 PM
Posted 22 August 2004 - 07:58 PM
My truck feels like a:
-------- 4cly. when temperture outside is about 90deg. and above.
--------6cly when temp. is below 80 deg.
-------one day (the only day, since the 16000 miles I have put on)when temp. was about 70deg., felt like a supercharged V-10
Posted 22 August 2004 - 08:09 PM
I really think you have something wrong. I'd have it diagnosed.
2014 GMC 4WD SLT Crew Cab - Bronze
Posted 22 August 2004 - 09:52 PM
Posted 22 August 2004 - 11:09 PM
Posted 23 August 2004 - 05:44 AM
'07 SILVERADO Z71 LT2 "VortecMAX" 6-Liter,"Super-Duty" Auto Trans,9 1/2" rear-end w/3.73 G80 Locker,XM,On-Star,BOSE speaker system,Stabilitrak,Block Heater,Sunroof,18" ARE "Cannon" Wheels w/LT275/65R18 Goodyear Wrangler AT/S tires.
Custom tune by Justin at Black Bear,CORSA "Sport" exhaust system,EXTANG "Full-Tilt" snapless tonneau cover,Rough Country 1.5" front leveling kit,Fabtech 1" rear lift blocks,EZ-Down tailgate damper.
GM accessories...Hood Deflector,Molded Mud-Flaps,Ventvisors,Catch-All Floor-Mats,Bedrail Protectors,BedRug Bedliner & Bedmat,and a GM Performance Parts cold-air intake.
2011 CAMARO 2SS/RS - LS3/M6 - Inferno Orange Met. - HURST short-throw - Roto-Fab CAI - Kook's LTs - CORSA exhaust - Black Bear tuned (playtoy!)
2012 CRUZE 1LT - Blue Topaz Met. - RS pkg.- Convenience pkg. (work car!)
Posted 23 August 2004 - 05:38 PM
Posted 23 August 2004 - 05:46 PM
I'm an 04 EC Z71 w/ 3.73
don't think that's too bad for a heavy truck....
Posted 23 August 2004 - 06:30 PM
I didnt think the 2000's had fly by wire. Or the 02's. I always thought that ETB was started in 2003. That and earlier model trucks with traction control had Electronic TB's.
i kno that my 2000 has the electronic drive by wire in it, and you need to hit the gas a good amount more than my 2002, with the old fashioned cable throttle. the 02 is much more responive and pulls much stronger, while the '00 just sort of drags sometimes unless i go down 3/4 to full throttle, and then she'll wake up. both trucks have 3.42s. i live in florida so a/c on all the time, and if i idle alot, in traffic or w/e, then the fan clutch is engaged so it can feel somewhat like a 6 cyl, but once i open them up and that clutch loosens up, they both run great. if i were you though, i would have it checked out, if its feeling that slow.
Edited by 99Silver5.3, 23 August 2004 - 06:42 PM.
Posted 23 August 2004 - 07:21 PM
I will say that now with around 1000 miles, this '04 feels like it's opening up a bit. Maybe I need to drive it harder to set it straight.
Edited by 04Yukon, 23 August 2004 - 07:22 PM.
Posted 23 August 2004 - 08:07 PM
Posted 30 August 2004 - 06:30 PM
My 04 Crew Cab 5.3 is two seconds slower ( 0 to 60 ) than my 01 Silverado trade-in. Not to mention it gets 2 mpg less mileage. Same everything and a 3.73 limited slip. I have given it 2000 miles and that is enough. Its going to the shop
Posted 30 August 2004 - 06:43 PM
Posted 30 August 2004 - 07:18 PM
Posted 30 August 2004 - 10:52 PM
04Yukon might also have a point.....maybe need to get some miles on the truck to blow the junk out, get in an oil change, and make it turn better.