I have adjusted my TV cable 3 times now (using the throttle bracket twice, and the peddle once) and it still shifts wrong/funny. It worked great before I pulled off the q-jet and HEI to replce it with a Holley and vacHEI... thus by-passing the computer.

I have 3 theories: 1) Some reason, the TCC is locked up, 2) the special bracket that Holley sold me for the 700R4 is really in the wrong position, and/or 3) the TV cable is out of adjustment.

I was really careful not to mess with the TV cable too much when I did the swap. Fluid level is good. Like I said, it worked fine before the swap.

What it does: In 1st, it won't shift until 35-4000 rpms, even under partial throttle. When it does shift into 2nd, it really drops into second (chirp tires and thuds because my tranny bushing is going) and won't shift until 35-4000 rpms again.

I was wondering if I could experiment a little by pushing in and pulling out the TV cable adjustment to see about lowering the shift point in 1st a little. I have seen a few others on this page with a similar problem and they live with it... I don't see how. Maybe mine is worse...

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1984 z28 w/ a 357 cu in. monster engine which is looking like the posterchild for Edelbrock... all the suspension stuff... 9-bolt posi disk is in... K&N filter... 93 octane...

-=ICON Motorsports=-

 

If you think the bracket's wrong, the best way would be to buy one of those trans fluid pressure gauges, hook it up, and then fiddle with the TV cable adjustment.

An improper TV adjustment can result in low fluid pressure, which burns up your clutches.

How new is the trans? Was the TV cable adjusted properly before you did the swap? The TCC staying in lockup would give you a harder 1-2 shift, since the trans both shifts into 2nd and locks the TCC up at the same time, but it shouldn't affect shift points.


------------------
-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

 

Ummm... the torque convertor doesnt lockup in 2nd and certainly NOT when it shifts. The TC locks up in 4th gear above 38mph usually. Depends on the calibration in the PROM. You would have to be in either 4th or 3rd for the TC to lockup though.

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92 Z28 L98 350
---------------
Ported stock heads, XR270HR-10 cam, TES headers, Crane AFPR, Flowmaster catback, MSD ignition components.
Best ET 12.9@107 mph
"Take that auto, drop it in first, hold the brakes, stomp the gas and grin from ear to ear! :-)
Click here to see my car at Truspeed.org

 

Actually Blade, the converter can be made to lock up in 2nd when you install a manual switch, but you're right that the computer controls it when you hit 4th... when you have a computer.

The shift points are OK... at least I don't mind them for 2nd-4th @ 3500 I guess. It is really the 1st to 2nd shift that has me bugged.

The tranny was perfect prior to the carb swap last month. I haven't had a chance to drive it much over that time because I don't want to have these problems in rush hour traffic and something has always come up it seems on the weekends.

The bracket is the one that Holley said to get and it looks like the one in the photo. I hate to call long distance yet again and wait on hold for 10 minutes just to be told to readjust my TV cable.

 

No it doesn't. At light throttle, my TC locks at a verified 23mph, in 2nd gear.



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91 Trans Am WS6
Bright White
5.0 TPI auto
Flowmaster 3" 2 chamber catback
Trans Go shiftkit
2000 stall converter

supposed 'peanut cammed' car (yeah, right)

Built on Wednesday

 

I believe the 23 mph mark but I think you're smoking crack when you say it locks up in SECOND. LOL

The convertor can be locked up in ANY GEAR manually. DOH! I was talking about when the ECM controls it, not when YOU control it.

------------------
92 Z28 L98 350
---------------
Ported stock heads, XR270HR-10 cam, TES headers, Crane AFPR, Flowmaster catback, MSD ignition components.
Best ET 12.9@107 mph
"Take that auto, drop it in first, hold the brakes, stomp the gas and grin from ear to ear! :-)
Click here to see my car at Truspeed.org

 

I don't know sh*t about Tv cables but I just tightened mine one click and it works like new again,I tightened the TV cable in my '80 lincoln 5.8L towncoup and it left rubber in all four gears.....who says fords suck??


---------------------------------------------
'84 Trans Am
305 High Output Q-jet 190 horses @ 5200rpm
700R4 turbo hydromatic,TCC lockup switch
borg warner 3.73 rear axle
headman shorty smog headers (extra 25 horse power)
borla cat back (50 extra horses when open)
K & N filter w/flame arrestor delete (20 horse power)
bosch platinum +4 (5 horse power)
bosch platinum oxygen sensor (3 horse power)
graphite additive and castrol oil (1 horse power)
red painted brake calipers (red paint reduces my 60-0 distance by 50 feet)
pontiac sticker in windshield (horse power undetermined)
factory wing and ground fx (downforce increased by .5G ) ....92 octane

 

LOL !

 

The torque converter CANNOT be made to lock up in first because there is no fluid in the TC circuit until the 1-2 shift occurs. But then the computer must ground the TCC solenoid before that fluid can do anything anyway.

As for it locking up in second, I highly doubt it becuase the computer needs to see certain conditions for it to lock up the TCC and if you took off the q-jet and HEI "bypassing the computer" then these conditions will never be seen and will never lock up the TCC.

As for your TV cable, it sounds like it is too tight. Assuming you have followed the adjust procedure properly, then you may have one of two problems:

1) The bracket for the TV cable on your carb is wrong

2) You have a problem with the TV valve in the valvebody causing it to get stuck.

------------------
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'87 Trans Am
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JET AFPR, Ported Plenum,
TB Coolant Bypass,
SSM SFC, Boxed LCAs,
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Flowmaster Exhaust,
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-->14.97 @ 94.9 MPH<--

'97 Bonneville SSE

 

Loosen up the TV cable and see if it has an effect. I could not get the holley bracket to work correctly so I used the original--it's worked great for over a year.

The ECM can and will lock-up the conveter in 2nd, 3rd, or 4th gear. But that doesn't apply since the computer is unhooked and the lock-up won't raise the shift point either.

------------------
82 camaro--original steering wheel, brake/gas pedals, seats--everything else modified
82camaro

 

Umm again... not to sound like a jerk or anything.. but in OUR cars the ECM will NOT lock up the torque convertor until you go over a certain MPH in 4th!

 

Too late, you already look like an a$$hole. And I stand by what I said. At light throttle, my tranny goes 1st to 2nd, 2nd to TC lockup, then it unlocks and shifts into 3rd and stays there until 39mph.. then 4th comes and it locks once again.


[This message has been edited by MrJ (edited December 17, 2000).]

 

I think the bracket that Holley sold me that they swear is for the 700R4 IS screwing things up. I drove the car to work today and it was REALLY annoying that it wouldn't shift until 4K rpms in every gear (never went fast enough to actually shift into 4th).

I still have my origional bracket... what should I look for when I re-install it?

PS- Blade... you're not being an a$$! Thanks for any info you guys can give.



------------------
1984 z28 w/ a 357 cu in. monster engine which is looking like the posterchild for Edelbrock... all the suspension stuff... 9-bolt posi disk is in... K&N filter... 93 octane...

-=ICON Motorsports=-

 

In the older third gen's for sure, the ECM doesn't know how fast the car is moving anyway. With a mechanical speedo, where does the ECM get the speed input?

------------------
82 camaro--original steering wheel, brake/gas pedals, seats--everything else modified
82camaro

 

Well I guess you never took the instrument cluster out have you ? If you ever do, on the backside you'll see a little box (most of the times yellow). That's how the ECM knows how fast the car goes.

------------------
92 Z28 L98 350
---------------
Ported stock heads, XR270HR-10 cam, TES headers, Crane AFPR, Flowmaster catback, MSD ignition components.
Best ET 13.5@105 mph
"Take that auto, drop it in first, hold the brakes, stomp the gas and grin from ear to ear! :-)
Click here to see my car at Truspeed.org

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