I have a problem with my truck I can't figure out what is going on .
The problem starts when I push the accelerator pedal to the floor from a dead stop , the engine revs and smoke boils out the rear of the truck .
I might have the tune to lean , I don't hear any knock , and doesn't get hot .
I have read that several other people have this problem as well , wonder what they did to deal with it .
Now what is a tune again?
Comp Cam 54-412-11 , Int:265, 212, .522 , Exh: 271, 218, .529 , LSA 114 , Longtube , CAI (Vararam) , TransGo HD2 shift kit , tuned by me with EFILive
defective PCV?
Are you sure you don't have too much fuel. What color smoke, blue or grey?
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
Are you sure you ain't roastin' the tires? Thats what it sounds like to me!
- Russ
1996 GMC Sierra K1500 - 4.3L NV3500 / NP241 - DD
1980 GMC Sierra Classic K25 - 5.3L NV4500 / NP241 - Project Truck
Sounds like detonation to me.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
Truck Smokes[/b]
old mod list: H/C/I/N/E/G 408
new mod list: 5.3, gears/posi, mufler and tune : (
We actually thought you had a real problem.
2004 EXC Silverado 6.2L
Mods:
6.2L L92, Ported and Polished stage 3 heads, 95mm Throttle Body, 100mm MAF, NA, Pacesetter LT Headers, Magnaflow X-Pipe Muffler, Electric Fans, 160* thermostat, 2" Drop Shackles, Hellwig Sway Bars Front and Rear, Monroe Reflex Shocks, NGK Spark Plugs, AMW Oil Catch Can, 17"x10" wheels on Kuhmo Tires.
sorry ill rephrase. We thought you had a mechanical problem not a personal problem.
2004 EXC Silverado 6.2L
Mods:
6.2L L92, Ported and Polished stage 3 heads, 95mm Throttle Body, 100mm MAF, NA, Pacesetter LT Headers, Magnaflow X-Pipe Muffler, Electric Fans, 160* thermostat, 2" Drop Shackles, Hellwig Sway Bars Front and Rear, Monroe Reflex Shocks, NGK Spark Plugs, AMW Oil Catch Can, 17"x10" wheels on Kuhmo Tires.
<div class='quotetop'>QUOTE(use2bfo @ Mar 4 2007, 09:45 PM) [snapback]85247[/snapback]</div>DOES YOUR TRUCK MISS WHEN THIS SMOKE COMES OUT? I WONDER IF YOU HAVE A LITTLE COOLANT LEAKING INTO THE HEAD UNDER HARD ACCELERATION. THE PRESSURE YOUR WATER PUMP IS PUSHING AT FULL THROTTLE MAY BE PUSHING WATER OUT IN TO THE CYLINDER. THE LEAK MAY BE VERY MINOR AND NOT LEAK UNDER NORMAL DRIVING.I have a problem with my truck I can't figure out what is going on .
The problem starts when I push the accelerator pedal to the floor from a dead stop , the engine revs and smoke boils out the rear of the truck .
I might have the tune to lean , I don't hear any knock , and doesn't get hot .
I have read that several other people have this problem as well , wonder what they did to deal with it .
[/b]
MY
JAMEST
12 Sec. Club! SOLD
La Viuda negra/ a.k.a. Black Betty
LQ4 6.0L, WCCH HEADS, LEVEL 5 FLT 4L80E TRANS. WITH TRANS BREAK, YANK 3200 STALL, TRICK TURBO, TURBONETICS T-76 TURBO, CUSTOM INTERCOOLED, 68lb INJECTORS, CUSTOM S/D TUNE FROM NELSON PERFORMANCE, COMP CAM 212/214 .557/.559 116+2, SNOW METH. KIT, . ALL INSTALLED AND DYNOED AT NELSON PERFORMANCE: 5**?HP @ 5073rpms and 5**TQ @ 4389rpms AT THE WHEELS WITH 10 PSI OF BOOST. ALL 3/4 TON TRUCK 5435LBS, NOTHING TAKEN OFF, STREET TIRES, AND USUALLY 2 BABY SEATS. WANNA RIDE?
SOLD***
Come on jamest i am slow and i even caught that one
2004 EXC Silverado 6.2L
Mods:
6.2L L92, Ported and Polished stage 3 heads, 95mm Throttle Body, 100mm MAF, NA, Pacesetter LT Headers, Magnaflow X-Pipe Muffler, Electric Fans, 160* thermostat, 2" Drop Shackles, Hellwig Sway Bars Front and Rear, Monroe Reflex Shocks, NGK Spark Plugs, AMW Oil Catch Can, 17"x10" wheels on Kuhmo Tires.
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