Tranny/Torque converter ??'s

[Mr. Luos]

Yikes.

I don't mind working on the Trans Am...but having to do something like this just bugs me.
Might talk to the dealership about the service bulletin.

[xeroinfinity]

Originally Posted by Mr. Luos

Yikes.

I don't mind working on the Trans Am...but having to do something like this just bugs me.
Might talk to the dealership about the service bulletin.

Its a good 8hr job, which it doesnt take that much more time to just remove the whole trany and engine.

Definitely do some "social engineering" at the Stealership before you just go and do a taredown

[BNaylor]

I did a PCS solenoid replacement DIY and added a Trans Go valve body kit in my GTP about 3 years ago and I still get nightmares about it.

Personally, I would not touch the tranny unless a scan with a trans capable scanner or GM Tech II machine shows any stored DTC error codes consistent with replacing any internal components.

The $500-$600 to pay a good tranny shop to do the work is probably worth it as long as they don't talk you into a rebuild which can be expensive.

[xeroinfinity]

Originally Posted by bnaylor

I did a PCS solenoid replacement DIY and added a Trans Go valve body kit in my GTP about 3 years ago and I still get nightmares about it.

Personally, I would not touch the tranny unless a scan with a trans capable scanner or GM Tech II machine shows any stored DTC error codes consistent with replacing any internal components.

The $500-$600 to pay a good tranny shop to do the work is probably worth it as long as they don't talk you into a rebuild which can be expensive.

[troy1]

Could be many things MAF TPS PCS can all cause sluggish/long shifts. 4T40e's have pump bearing issues this causes a lockup hunt or is severe cases no lockup all. I would get it scanned before you throw parts at it.

[grfnkl]

all i can say is that, no matter who i've brought my car too, or how many times they've scanned it and checked it, it still continues. On Top of that it's been doing this for four years now, and amazingly the car still goes! The last time I had the fluid changed though was about a year ago maybe pushing two now, I know i'm due for it again , but it doesn't make a difference in the way the tranny acts. So for the moment I've given up on worrying about it, until the car craps out on me.... or with my luck as some of you know, maybe someone will total it .

[xeroinfinity]

Originally Posted by grfnkl

So for the moment I've given up on worrying about it, until the car craps out on me.... or with my luck as some of you know, maybe someone will total it .

Hey Paul, what a positive attitude

[grfnkl]

LOL, That's about as positive you are gonna get from me on a Monday at work while it's pouring rain outside...

[xeroinfinity]

What, you hav the "mondays"
They tend to be hecktic.

Its been raining more on then off for the last three days here also
Wouldnt be bad if it made it cooler, its only getting more humid

[Mr. Luos]

Originally Posted by troy1

Could be many things MAF TPS PCS can all cause sluggish/long shifts. 4T40e's have pump bearing issues this causes a lockup hunt or is severe cases no lockup all. I would get it scanned before you throw parts at it.

Please explain how the MAF would cause a sluggish shift.

I can see a faulty computer...but that should throw a code of some sort. Might not be the right code...but it should show something.

I could see the TPS causing problems. But not with shifting. Unless the tranny uses that signal to shift. Again...you should see a Service Engine Soon light.

Scan....coming soon. But I am almost willing to bet it shows nothing.

[troy1]

the computer uses MAF/TPS of those to determine engine load. The computer then uses those inputs to determine shift time and if need be increase line pressure to help stop any slip. GM has a TSB about using oiled air filters and messing up the MAF causing erratic shift or even failure if driven to long

[xeroinfinity]

Ya troy1,
I bet GM has 1000's TSB's on Grand Ams ,
and thier funky ways

..... I'm beginning to see why they discontinued this car.....

[BNaylor]

In case you guys did not know Troy is a Professional GM Tranny Tech and knows his stuff. I'd take my tranny problems to him any day but too bad he's out in the middle of nowheres.

[xeroinfinity]

Yes Bob, Troy knows his stuff.

I've read several posts of his "hitting the nail on the head" so to speak

WOW! he does live out in the middle of no where

[Mr. Luos]

Originally Posted by troy1

the computer uses MAF/TPS of those to determine engine load. The computer then uses those inputs to determine shift time and if need be increase line pressure to help stop any slip. GM has a TSB about using oiled air filters and messing up the MAF causing erratic shift or even failure if driven to long

Thank you.
Sometimes I regret buying an automatic. At least with a manual it is much easier to tell the problem apart from others.

Car runs great....I can't imagine it being the MAF. But I can always clean it and see if that helps.
I will try it.

If only the Trans Am got slightly better gas mileage...I would just daily drive that.