| FAQ |
| Members List |
| Social Groups |
| Calendar |
| Search |
| Today's Posts |
|
#1
06-17-2010, 02:06 PM
|
||||
|
||||
Interesting tranny issue.
Okay, trying to figure this out. Drove to work last night in the '62 and shifted fine all night. This morning, started fine, went into gear, and the tranny almost immediately shifted into second at 5mph. Had to manually shift all the way home. A couple times when it was in drive and I stopped at a traffic light or sign,it was still in second gear.I adjusted the linkage a little and took it for a spin again. had great acceleration and shifted normal for about three blocks. then it did it again. Parked again, fooled with the rods again, and again, it was great, then again it would shift too soon and not downshift. I rebuilt the tranny about two years ago so gunky valve body shouldn't be a factor. My '62 is running the '61 rod linkage versus the norm '62 cable.
The vacuum modulator is NOS when I rebuilt the tranny and doesn't seem to be leaking or sucking fluid, but my only other guess would be sticking valves in the valvebody? Any thoughts with out testing TV pressure and othe pressure tests? Never had this problem before on this car. The yellow convertible did, but it's TV cable was broken completely. Thanks!
__________________
2-1962 Lemans convertibles 4cyl, auto 1962 Tempest safari wagon (running project) 1972 455 Formula (tribute) 1962 Skylark convertible 215 4-barrel , auto 2009 G8 Sport red metallic, Onyx leather Whatever else that make my way into the driveway |
|
#2
06-17-2010, 03:34 PM
|
||||
|
||||
|
Possibly the adjustment for the TV on the valve body has come loose inside the pan??
__________________
Keith Collier 61-63 Pontiac Tempest Tech advisor POCI.org |
|
#3
06-17-2010, 05:40 PM
|
||||
|
||||
|
If everything checks out, check the governor. It may look fine. I had a Corvair that would not upshift and the gov looked perfect. Changed it and everything was fine.
__________________
The difference between inlaws and outlaws? Outlaws are wanted |
|
#4
06-18-2010, 03:50 PM
|
||||
|
||||
|
Quote:
Stevep, I was thinking of the governor as well, as it being sporatic and all. I appreciate the thoughts!! I'll see if I can dig into it this weekend to figure it out.
__________________
2-1962 Lemans convertibles 4cyl, auto 1962 Tempest safari wagon (running project) 1972 455 Formula (tribute) 1962 Skylark convertible 215 4-barrel , auto 2009 G8 Sport red metallic, Onyx leather Whatever else that make my way into the driveway |
|
#5
09-10-2010, 10:25 AM
|
||||
|
||||
|
azkeebler - was it the governor? I have the same problem with my 62 Tempest.
|
|
#6
09-10-2010, 10:56 AM
|
||||
|
||||
|
Not confirmed diagnosis
Unfortunately, I have not evaluated the problem much more. The last time it did it to me , I went to turn around to park it at work and have it towed home, I gave it a hard acceleration and it shifted. I drove it home without incident. I have only driven it twice since the problem occured, and each time it has driven and shifted fine. I was a pint or two low on fluid, but being low on fluid usually has a jumping out of gear symptom. I replaced the modulator and it has been shifting fine once I readjusted my tv rods.
Been busy moving friends and ourselves lately , and just haven't had time to dig into any of my lil indians. 
__________________
2-1962 Lemans convertibles 4cyl, auto 1962 Tempest safari wagon (running project) 1972 455 Formula (tribute) 1962 Skylark convertible 215 4-barrel , auto 2009 G8 Sport red metallic, Onyx leather Whatever else that make my way into the driveway |
| Reply |
|
|
The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.
Linear Mode
