Sticky Governor

Sticky Governor - 02/06/12 02:47 AM

Just wondering if there is an additive to fix this or what other trick is there. The transmission has been rebuilt and only has probably 30 miles on it. The governor itself has been replaced and cleaned twice by a reputable transmission builder and the second time we went to a more weighted governor but, it is still sticking?

Posted By: calrobb2000

Re: Sticky Governor - 02/06/12 02:51 AM

hi
what exactly is the problem ?

not shifting ?

what gear not working ?

Posted By: RapidRobert

Re: Sticky Governor - 02/06/12 04:40 AM

I'd think they checked it for burrs hanging it up. Kickdown length good? Yes how's it acting

Posted By: OrangeProwler

Re: Sticky Governor - 02/06/12 12:32 PM

Quote:

hi
what exactly is the problem ?

not shifting ?

what gear not working ?

The problem is when it is cold the transmission shifts 1st to 2nd to 3rd alright. As the transmission warms up more the 904 will hang up on 3rd gear the way it seems.

So, when I come to a stop after driving a few miles the transmission feels like it is still in 3rd gear. I can push down on the accelerator and it will stay in 3rd the whole time unless it is manually shifted. I can repeat this process with the same results.

The other thing is I can pull off in a parking lot for a few minutes it will start to shift automatically again until I come to a stop then will hang up in 3rd gear. But, even when it does shift it is shifting late. For example under light throttle I am not shifting out of 1st gear until at least 25-30 mph. I did try to adjust the kickdown linkage with no change in results.

A few things to keep in mind here. The builder installed a low gearset, TF1 shift kit, on top of the master rebuild kit and I think Sonnax kit already so we are back to square one here as he was even stumped himself because this thing is being a PITA. I read there is some additive that can help with this issue or there is some trick you drive 20 mph then slam it into a park which I don't think is a good idea. Oh yeah, the torque converter is new and a PTC unit.

Any other thoughts here. Also, the trans builder is a sponsor here and he is primarily and Mopar transmissions is area of expertise. I will try to post a video later.

Posted By: OrangeProwler

Re: Sticky Governor - 02/06/12 12:34 PM

I am thinking it could be a valve body but, not sure there. I just want to say that when the car is floored it will squeal the tire from a dead stop and the WOT shift point 1st to 2nd gear is 45-50 mph. Flooring from 40 mph or even 50 mph and the transmission will downshift as prompted. From what I have gathered this is a bigger issue on the 904s than the 727s.

Posted By: mopar_man

Re: Sticky Governor - 02/06/12 01:27 PM

Quote:

I am thinking it could be a valve body but, not sure there. I just want to say that when the car is floored it will squeal the tire from a dead stop and the WOT shift point 1st to 2nd gear is 45-50 mph. Flooring from 40 mph or even 50 mph and the transmission will downshift as prompted. From what I have gathered this is a bigger issue on the 904s than the 727s.

I'm not a tranny guy but if your just getting out of low gear at 50 mph , I would be looking for a spare motor cause your gonna have a mess of broken parts very soon. especially if your running low gears(high ratio).
It could be valve body trouble and maybe your linkage from carb is not set right but that should not leave it in 3rd. at the light.

Posted By: savoy64

Re: Sticky Governor - 02/06/12 11:12 PM

when the governer weight was explained to me----i was told if you accidentally put your tranny in low and took off that the govnr would override the valve body and force the 1-2 shift at the set rpm 4000,4500,5000,6000 as determined by the weight of the governer----i would suspect a valve body shift kit problem----have your tranny guy toss in a bone stock unit for a quick tryout---bob

Posted By: John_Kunkel

Re: Sticky Governor - 02/06/12 11:33 PM

You need to install a test gauge on the governor pressure test port to verify that it is a governor problem and not a stuck shift valve in the valve body; if the governor has been serviced twice I'd be inclined to think the problem is a sticky 2-3 shift valve plug.

Posted By: dogdays

Re: Sticky Governor - 02/06/12 11:38 PM

Doesn't sound like a governor to me. More like a valve hanging up in the valve body.
R.

Posted By: lewtot184

Re: Sticky Governor - 02/07/12 12:07 AM

i went thru this on my 65 coronet. i did the governor change stuff, valve bodies, cussing a lot, and guess what? the kickdown linkage was too tight and when everything got hot the kickdown lever wouldn't return to the closed throttle position. otherwise i didn't have a downshift at a stop. look at this carefully before you get into the tranny again.

Posted By: OrangeProwler

Re: Sticky Governor - 02/10/12 12:57 AM

We already went through with that. It's just one of those things where the problem can't be fixed other than replacing it with another unit so that's where it is going to stand at.

Posted By: bboogieart

Re: Sticky Governor - 02/10/12 02:47 AM

Quote:

when the governer weight was explained to me----i was told if you accidentally put your tranny in low and took off that the govnr would override the valve body and force the 1-2 shift at the set rpm 4000,4500,5000,6000 as determined by the weight of the governer

This does not sound right to me. Any car I ever had would stay in the gear it was put in no matter the rpm. Could buzz 1st gear right up untill it would not increase rpm anymore.

Posted By: John_Kunkel

Re: Sticky Governor - 02/10/12 10:41 PM

Quote:

We already went through with that. It's just one of those things where the problem can't be fixed other than replacing it with another unit so that's where it is going to stand at.

If the problem is a sticky valve in the valve body, any experienced builder should be able to tell a potentially sticky valve from one that is free in its bore.