I recently swapped my 5.3 engine out for a 6.0 in my 04 tahoe. We also installed a small gm performance hot cam with a nelson tunned pcm. The truck runs great, but has a less then desirable idle. The problem we have is when you are in drive but at a stop the truck bucks and jerks slighty making you feel like it wants to move when the brakes are on. It is very anoying to deal with. Does anyone have any ideas at what to look for? Thanks guys.
needs a stall.
Nothing stock...I either broke it or replaced it before I broke it!!
put it in neutral
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
what he saidOriginally Posted by 20''strong
'92 GMC reg. cab, step side. 7.32@ 92.3. SOLD
http://videos.streetfire.net/video/d...d700c6401f.htm
New project: '00 S-10 ext. cab, ZQ8, 370, T-56, daily driver.
A stall? A diffrent torque converter?
You may need a stall to take full advantage of the cam, but you shouldn't need one just to make it idle without taking off. What is the idle RPM?
It is set to 800 rpm, i orgionally had it set to 650 but it stalled all the time. The truck jerks at stop or going to a stop and actually bucks less at the 800rpm idle then it did at the 650 idle.
what are the cam specs?
What do you not like about the idle; lope, speed, etc...
With a big enough cam, a stock stall will make it act up around idle speeds
'92 GMC reg. cab, step side. 7.32@ 92.3. SOLD
http://videos.streetfire.net/video/d...d700c6401f.htm
New project: '00 S-10 ext. cab, ZQ8, 370, T-56, daily driver.
Sounds like when the cam lopes it's trying to engage the converter. Is the converter still stock?
The converter is still stock. The came is a gm performance ls1 hot cam. I actually bought it because it wasn't as aggressive. But it feels like the converter is constantly catching during idle. I did nt think this would happen.
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