So i drove the 5.3/MN12 tonight, having an issue, it will not go into 2nd or 3rd. WOT shift from 1st to second results in grinding 2nd and wont go in...

im running a modded 3rd gen clutch master w/4th gen line w/drill mod to 4th gen slave. Any thoughts?

 

nevermind, looks to be a CAGS (skip shift) issue...

DynoDan where are you??? lol

 

Just unplug the CAGs? I think you have to get the code tuned out..but in the mean time all it will do is cause a CEL I think.

I didnt think CAGs would cause a gear grind though. Just activates a solenoid that makes you pull straight back into 4th instead of 2nd. And I thought that only activated during certain conditions...but WOT wasnt one of them.

My first thoughts were to bleed your hydraulics some more. Then go from there. A number of issues could cause what you are experiencing.

And it could very well be CAGs...because I havent really dealt with it. It was never activated in my swap. But I was pretty sure of how it worked, Im sure someone else will chime in.

Good luck!

J.

 

I think it is cags, when the car is shut off, no power, it will go into any gear, with the car on and/or running i only have 1st and 4th which i read up on over on LS1tech as being a cags issue, first thing ill try is unplugging the cags and go from there. Clutch pedal FEELS good but you never know, might need to be bled some more, im not too worried about the tranny, it has 55K on it and i dont think it should have any issues. Thanks for the input ghetto. appreciate it.

 

When I was having clutch issues from a crappy MC, it would go into gear just fine with the car not running, but as soon as you start the car, the friction of the rotating flywheel against the input shaft/clutch made it grind real bad. Reverse was nearly impossible to get into with the car running.

I wouldn't rule out anything right now.

 

Blue, i agree. my first step will be simple, unplug the cags solenoid. if no change, ill move on to the hydraulics, after that, well, we all know where id have to go from there....

 

None of my harnesses come with CAGS unless you specifically request it. Ill save you a trip and tell you there's nothing to unplug down there

T56's get VSS, reverse lockout and back-up lights

 

Jon honestly man, i had 4 plugs under that tranny, VSS, back up, rev lock out and cags.

 

Ah I didnt realize you had a Pocket harness...weird that there would even be a CAGs plug under there... I know the Reverse lock out and cags share the same plug, and that lots of guys get those mixed around. So double check that too.

And yeah...going into all gears while the motor is off is normal. You dont even really need the clutch for that to happen.

What clutch are you running? I could probably search under your name but Im brain numb from taking care of a newborn haha. Did you get a New GM slave cylinder when you put things together?

J.

 

Running a stock 3rd gen modded clutch master to 4th gen line w/drill mod, to new 4th gen slave with a stock clutch disc/plate. No slippage when in gear/driving but i did notice the clutch grabs really high...but still solid.

i know there were 4 plugs into the tranny, im starting to wonder if i mixed them up, saw that issue alot on the tech.

 

Jon, right again, i thought there were 4 but only three, my mistake, had the VSS and cags mixed up, took the car out, scared the hell outta myself with all 6 gears lol. I HIGLY recommend the borla from a 4th gen...

 

98% Done... Driving it around, fun fun car, feels like a completely different 3d gen