Question about 1989 Chevrolet K1500

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How to set the tv cable right on a 700r4 with a holly trottal body with shift kit in it

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Pop the hood and locate the TV cable it has a button on the side... Push that button in and while holding down push the tip of the housing(for the cable) in.. this retracts it completely..Once retracted , manually open throttle to wide open position...You will notice that the TV cable will ratchet out .... This is the proper setting for cable.....Good Luck!!!

Posted on Jun 20, 2010

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700r4 transmission, my transmission is doing high rpm before shifting up from 1st gear, but with no slippage in any gear, rest of the upshifts are firm.BUT, on kickdown from 3 to 2.gear its going as i


I don't know if this will help,but i set my tranny up to shift hard like you are describing. Just by putting a clip on the kick down cable. The book talks about this, its cool if you like that sort of thing?

Jan 29, 2014 | Cars & Trucks

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I have a 1992 700R4 that ive built twice now. Its a heavy duty tranny out of a 4x4 that was working fine, it just burned out 2nd gear. My problem with it now is that after two complete teardowns, it wont...


These are very sensitive to the adjustment of the throttle position cable that goes from the carb linkage, or throttle position linkage. Make sure that is set correctly. If it is set correctly and it still doesn't work correctly take it to a good transmission shop on the 700R4. Had to have mine done 4 times and it still isn't totally right. Mine is behind a strong Mark IV big block.

Jun 04, 2017 | 1990 Chevrolet K1500

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Truck hesitates to down shift once in overdrive


check the tv cable .
It is right beside the throttle cable, under air cleaner throttle body, if the cable came off you will have problems with shifting, if it is still attached make sure the cable is free and moves with throttle cable, or follow it to transmission it might have came off the side of the transmission.
If the cable looks damaged, bent, replace it with a new tv cable, make sure you check the adjustment before changing it as you don't want to change the downshift pressure to the transmission.
If all is good and the TV cable has been removed, replaced with aftermarket the pressure to the transmission might be wrong,easy to adjust start light pressure take the truck for a drive and adjust accordingly until you get the down shift you like. Or you can take it in to a transmission shop and have a shift kit put into the transmission and make it shift however you want, depending on the horsepower of your truck.
Hope this helps
D

Jan 06, 2011 | 1993 Chevrolet K1500

1 Answer

I just had my 700r4 tranny rebuilt again! The guy I purchased my truck from just had it rebuilt 3 yrs ago. It had a hard second shift and he told me that was from the shift kit they put in it. Well, that...


The throttle valve cable controls the transmission pressure. Adjusting this cable is the most important step when installing a 700R4 or 200R4 transmission.

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I have question about my tranmission


You have worn clutch facings a weak sprag ring retainer springs.Also the direct drum is worn intenally and the sun gear bushings will be fairly worn too. Your truck is ready to get a rebuilt transmission
All issuses as described tell me this has high miles or a hard life on the trans per say as towing or lots of city driving

Apr 15, 2010 | 1987 Chevrolet Blazer

1 Answer

My1988 chevy 2500 2x4 auto shifts into 2nd at about 30 and shifts into drive at about 45 mph.It doesn't slip but takes forever to shift.Any ideas what the problem might be?


Engine load is determined by throttle position via the TV cable. Either a stuck valve due to some crud, or a broken or disconnected TV cable. Start there, the TV cable is the critical adjustment to those 700R4 and the tv cable will make or break how that thing shifts.
Look up the leading transmission builders in your area and find the initial setting then what to did is move it a notch at a time (made it tighter then drove it) till you get a nice firm shift...its pretty easy to set once you've done it a few times. good luck

Thank you for using fixya

Apr 13, 2010 | 1988 Chevrolet Silverado 2500

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A buddy brought me his headache.Its a 1994 GMC jimmy with the 4.3 vortec 4X4 that had a 4L60E he swapped out the 4L60E for a 700R4 from an earlier chevy.the tranny modual plugs are totally different.How do...


The 700R4 is controlled by vacuum lines and throttle cable kick down linkage (TV) and need to be re calibrated to the engine as to being 4.3 or 5.0 to 5.7. Best thing to do is to get a transmission shop that knows how to custom install transmission like a speed shop. The TV cable adjustment on the 700R4 needs to be perfect. TV cable is used to set part throttle shift points, line pressure and if not set right will burn up the clutch plates due to low line pressure. Good luck and hope this helps. you going to need tools that most of us don't have, like to be able to measure and adjust the line pressure at different RPM. If you need more information, keep me posted and be glad to help.

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1 Answer

700r4 not working


Is the fluid level correct.? Might help to change the filter and fluid. does fluid smell burnt.?

May 13, 2009 | 1985 Oldsmobile Delta 88

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HOW DO YOU ADJUST KICK DOWN CABLE FOR CHEVY 1500 1988


700R4/2004R TV Cable Adjustment Instructions WARNING! IMPORTANT NOTICE!
POST INSTALLATION ADJUSTMENT.
It is imperative that after your new TCI® 700R4/2004R transmission has been installed that the Throttle Valve (TV) Cable gets adjusted properly, DAMAGE WILL OCCUR to the transmission, voiding the warranty. If you are unsure about the proper adjustment needed, call TCI®'s tech line for help or refer to a General Motors service manual for additional information and reference.
Function of the TV Cable: Many people believe that this is a detent downshift cable and that this is the only function that the cable performs. In actuality, the TV Cable controls line pressures, shift points, part throttle downshifts and detent downshifts. The cable functions similarly to the combination vacuum modulator/cable systems found on other automatic transmissions.
TV Cable Connection: If you are retrofitting your TCI® 700R4/2004R transmission in place of a different model transmission (i.e. TH-350 or TH-400) it is imperative that you follow the TV Cable bracket fabrication instructions. If your TCI® 700R4/2004R is replacing an original 700R4/2004R then skip to Step 2.
Step 1 Obtain a cable that is designed for use with the 700R4/2004R transmission. The TH-350 and older TH-200 cables are designed differently and will not work. A salvage yard cable may work but be forewarned: There are about 30 different length cables found on stock vehicles and a cable that is too short in your application will not work. Also, used cables could have a number of problems as well, including stretched cables, damaged sheathing or housings or mutilated cable ends. TCI® recommends our universal TV Cable (TCI® 376800) that is designed to work correctly in any 700R4/2004R application.
gm_tv_fig1.gifStep 2 With the carburetor/throttle body end of the TV Cable disconnected, pull the link out of the transmission and fit the cable end to the link as shown in Figure 1. Push the TV Cable sheath into the seal in the transmission and tighten the 10mm retaining bolt. If your vehicle has a factory installed bracket for the TV Cable then skip to Step 4.
Step 3 Install a bracket that will allow the TV Cable to mount to the carburetor/throttle body. TCI® carries two brackets: TCI® 376700 works with Rochester Quadrajets, Carter AFBs or Edelbrock Performer carburetors. TCI® 376800 works with most Holley carburetors.
If you are using a Chevrolet TBI/TPI induction system, then correct brackets can be obtained from a salvage yard or a local car dealership.
Figure 2 demonstrates the correct geometry for the TV Cable mounting position. Use the following procedure to determine if your ADJUSTER MOUNTING POINT is correct.
a. Push in the Adjust Tab and retract the Slider in the direction shown in Figure 3.
b. Without allowing the Slider to move, pull the cable until it stops and measure from the mounting bracket to the cable end. Add 3/16" to this measurement and that will determine the ADJUSTER MOUNTING POINT distance at full throttle (WOT).
gm_tv_fig2.gifc. Also note in Figure 2 that the distance from the throttle shaft to the cable end is referenced. This distance must be between 1 7/64" and 1 1/8"! The cable end mounting point should follow a 78° arc between closed throttle and WOT in order to achieve the proper amount of pull on the cable.
Step 4 Adjustment of the TV Cable on a gasoline engine. For a diesel application go to Step 5.
a. Adjustments are made with the engine off. Locate the Adjust Tab on the cable housing. Press in the tab and push the slider as shown in Figure 3.
b. Release the tab and rotate the throttle lever to WOT and the cable will self adjust itself as evidenced by a few audible clicks. Release the throttle lever and check the cable for any signs of binding or sticking.
gm_tv_fig3.gifc. Road test the vehicle. Under moderate acceleration your shift points should be close to the following:
1-2…………………15-20 MPH
2-3…………………25-30 MPH
3-4…………………40-45 MPH
If the cable is adjusted too loosely your transmission will exhibit soft, stacked shifts (not spread out). DO NOT CONTINUE DRIVING VEHICLE IF THIS HAPPENS! Immediately readjust cable. If you continue to have problems, please contact TCI®'s tech department for assistance.
Step 5 Adjustments of the TV Cable on a diesel engine.
a. Adjustments are made with the engine off. If equipped with cruise control, remove the control rod.
b. Disconnect the TV Cable end from the throttle lever.
c. Loosen the locknut on the pump rod and shorten several turns.
d. Turn throttle lever to WOT and tighten the pump rod locknut.
e. Lengthen pump rod until injection pump lever contacts the full throttle stop.
f. Release the throttle lever and tighten the pump rod locknut.
g. Remove pump rod from the throttle lever.
h. Reconnect the TV Cable end to the throttle lever.
i. Press in the Adjust Tab and move Slider as shown in Figure 3.
j. Release the tab and rotate the throttle lever to WOT and the cable will self adjust itself as evidenced by a few audible clicks. Release the throttle lever and check the cable for any signs of binding or sticking.
k. Reconnect the pump rod and cruise control throttle rod, if equipped.
l. If equipped with cruise control, adjust servo throttle rod to minimum slack.
m. Road test the vehicle. Under moderate acceleration your shift points should be close to the following:
1-2…………………15-20 MPH
2-3…………………25-30 MPH
3-4…………………40-45 MPH
n. If the cable is adjusted too loosely your transmission will exhibit soft, stacked shifts (not spread out). DO NOT CONTINUE DRIVING VEHICLE IF THIS HAPPENS! Immediately readjust cable. If you continue to have problems, please contact TCI®'s tech department for assistance.

Feb 16, 2009 | 1988 Chevrolet C1500

1 Answer

1988 700R4 Electric transmission


Sounds like a sticky check valve in the valve body, try using the new synthetic Dexron VI FLUID GM recommends for all there trans's now, it may cure the problem, it is far superior in every way to the old Dexron 3 Click the link for a press release and info on this great fluid, replace the fluid in my 96 Corvette, better shifting and all around performance.

dexron-labling-atf-mobil-1-a.html">http://forum.ih8mud.com/80-series-tech/161325-change-dexron-labling-atf-mobil-1-a.html

Nov 09, 2008 | Chevrolet C1500 Cars & Trucks

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