Thread: Ok. R&R'd intake. Dist. is clocked, cam sensor is dialed in...STILL running bad...

its possible.

Most likely intake gaskets going bad. Tons and tons of info here about it - try a little searching for more info and even a few write-ups on replacing them. Extremely common problem on the first gen Vortec small blocks. Take care of it before it causes any damage. If it's getting into your oil, fix it immediately or you'll kill your bearings. Richard

If Splitfires were so good why wouldnt GM use them. Go back to the AC Delco plugs.

Quote: Originally Posted by 2500ak Sealed cell batteries are a lot less likely to freeze up in my experience. It's the dead of winter in Fairbanks and I left my truck outside for a week at the airport. Started no differently than it ever does. The battery is a 9 year old optima red top that been drained to dead a number of times. That's a testament to the quality right there.

I know for a fact mine is a lower one P.O did that why I don't know and don't care I don't even use the blower and I am hot as a mother f*cker

Well I was hoping the window issue was fixed but nope, my 2006 had frozen windows all it's life and now the first cold snap and same problem on my 2009. Atomic make sure you make some pictures and post them to a thread on how you fix this. You do know the window circuit changes polarity meaning it has 2 wires to the motor, 1 hot and one ground in the down mode then they change polarity to make the motor run in reverse to go up.

And if the truck doesnt make peak tq till 3200 rpm,why would you need anything else down low?In stock form the only run to 5000 rpm as well.....if they made peak tq so high,tri y's would not be what you wanted at all.....

Quote: Originally Posted by DieselSlug GREAT SCHEMATIC! I am still a little confused, where is this modulator control valve located? Tomorrow morning i will try the tests. Where are the terminals for it? So to check codes will be like reading for obd-1 on the dash? H ow does the connector come off the top of the combination valve to make sure the vale checks ok ? I should also check to make sure the ABS fuse is good. on a bracket, under the...

IMO thats normal but you should do any tight turning on pavement while in 4wd. Its hard on your drivetrain.

Yeah they can change all the shift points and pressures to your liking. Can also mess with converter lockup as well. As far as removing your cats to get more power, it's kind of a wash (not to mention illegal as hell and a monster ticket for no reason). With modern day catalytic converter tech the airflow is plenty with 2 cats on our rigs. If you want to open it up a bit, injectors, good air filter, delco plugs gapped down, tune from...