CY & CX 400THM: differences & similarities

[nuch_ss396]

[ QUOTE ]
Are some black??? or do they just look dark?

Thanks

[/ QUOTE ]

I'll check my database and get back to you......

Nuch

[nuch_ss396]

Try this for size:

( you need an ebay login for the search engine to work )

ebay search for THM tags

Nuch

[COPO 70 RS/Z28]

WOW,

Most of those are yellow, listed for lots of diff years!!!

Man ???

[jeff-san]

I am having an issue with my CX tranny...under partial to 1/2 throttle the Nova lights up the tires and shifts firmly into the next gear... but under heavy to full throttle around 5-6k I hear a slight squeal, then the tranny slips before it shifts into 2nd. I know it has and adjustable vacuum mod as I took a few pictures for Tom W...will an adj of this screw in or out fix this? any help out there?

[Mr70]

I don't think adjusting the Vac. Mod. will cure it,as it sounds more serious.
I had a similar situation and it was a clutch pack sticking.
It could also be a compression band that won't release.
1st check your fluid & filter for color & debris.

[mockingbird812]

Jeff - should it be more serious I have a friend who you could trust to fix your tranny. He is in my neighborhood, is a retired GM Proving Grounds Auto Tranny expert with beauceaup experience with 400s, and an excellent reputation. He has a complete shop on his property. Let me know. Good luck.

[jeff-san]

I may pull the tranny. when I bought it, I had all the fluids changed and a tune-up. the guy changed the tranny filter and althought the fluid was old he didnt notice any fragments from the clutch pack or metal in the pan. I may contact you about your tranny man. I have also heard good things about Mike's Trans in Lancaster, Ca. thanks for both of your imputs...I was trying to avoid pulling the tranny but I guess I cant get around it.

[Chevy454]

An easy check, and probably not the case (but learned by experience), make sure you have the correct pickup tube if it has a deep pan on it...doesn't sound like a modulator problem, sounds more like a hard part...but I'm no tranny guy by any means!

[jeff-san]

[ QUOTE ]
An easy check, and probably not the case (but learned by experience), make sure you have the correct pickup tube if it has a deep pan on it...doesn't sound like a modulator problem, sounds more like a hard part...but I'm no tranny guy by any means!

[/ QUOTE ]

this may be a good lead. I noticed the ccar didnt have it's original tranny pan...it looks deeper than stock and it's finned. maybe they didnt make the adjustment on the pan depth? if this is the case, could it cause some of the problems that I'm experiencing? My buddy that did the tune-up swears these tranny are bullet proof and it had to be something simple...especially since he saw no signs of metal or clutch schmegma in the pan or filter when he changed it. I'll try it. thanks, I hope it helps.

[Xplantdad]

If you have to pull it...bring it out this way. It'll give you a chance to hook up with Sam and me...heck, I'll spring for a barbeque at my place...