What is the function of the governor on a 700-R4 trans 1990 chevy

http://mmerlinn.com/catalog/lilscribbs77/gm_9l6/gm9l6010.htm and the trans has to have same features-4x4 to 4x4 output shafts different between 4x4 and 4x2 also will need to modify if different .engines as well as some harness mods and programming When the 700-R4 was introduced in 1982, it had minor performance issues GM engineers had to work through. Just five years later, the 700-R4 had undergone several engineering refinements and gained a more favorable reputation with enthusiasts. By 1990, the 700-R4 became a popular swap for the classic Turbo 350. That same year, the 700-R4 became known as the 4L60, the same transmission, but with a new designation. In 1993, the 4L60 became electronically controlled and known as the 4L60E. Even though the 700-R4 transmission isn’t being manufactured by GM anymore, it remains one of the best transmissions around.

1990 chevy k1500 tranny stopd going into overdrive? - Hot Rod ...

www.hotrodders.com > Tech Help > Transmission - Rearend

Sep 6, 2011 - 3 posts - ‎3 authors

i have a 1990 chevy k1500 4x4 std cab 5.7L elc shift 700 auto trans, it has ben ... but every other gear is doing good.. no shuttering no noises just not going into ... i drive this truck everyday to work getting 19mpg without OD whew around .... 1994 Chevyk1500 tranny problems, rebel till death, Transmission -

I was about to say rebuild it

You need to stop using i say as a former
trans shop owner & hope the damage isn't
done already

You have solenoid issues every where
Delayed reverse
Torque Converter Chatter
Delayed Shifts

Hope the trans was built correctly
Now you need to diagnose the ENTIRE
cars systems,all of them

You have no real shift strategy at all

May be a sensor you don't see associated with
the trans

I can't guess,just spoke my mind

i could poll and instol one for u

YEP 4T60E HAS A THROTTLE DOWN SHIFT CABLE.YOU NEED THROTTLE CABLE TO CONTROL THROTTLE VALVE AND ALL SHIFT VALVES IN VALVE BODY.YOUR THROTTLE VALVE CABLE CONTROL TRANSMISSION LINE PRESSURE THROUGH THE VALVE BODY.WHICH CONTROLS ALL SHIFTS.

Change modulator valve on transmission.

what color is the inside of the trans connector on the trans itself? I believe the 93/94s were a tan yellowish color. 1995 and up are different and won't work - electronics are different

If they have exactly the same amount of solenoids, you could switch the harnesses.... but it sounds like you have a 95 or newer trans which would have one more solenoid

I assume you have a 700 R4 trans. Check your throttle linkage. Sounds like it's out of adjustment, maybe loose in the holding bracket.

I will try and clear up any confusion about the different model designations.The trans was first introduced as the Turbo Hydramatic 700 r 4.Later in the evolution of that family,it had improvements made on it by the factory engineers,and they redesignated it the 4L60 model.The 700/4L60 uses a throttle valve cable as a mechanical indication of the throttle position....to the trans.The TV cable regulates mainline hydraulic pressure inside the transmission.This model also uses a governor as a road speed mechanism.It is responsible for the TIMING of the upshifts,and is responsible for the trans being in first (low) gear from a standing start.In 1993,the 4L60E was introduced to the lineup.Same trans as the 700/4L60,but now it is totally electronic,and totally controlled by the PCM (Powertrain Control Module) based on electrical inputs/outputs from the trans,throttle position sensor,road speed,etc.The engineers took the 700/4L60 and did away with the governor and TV cable,made it totally electronic.Early 700's had a mechanically driven speedometer,while the later 4L60's and E's had an electronic speedometer.1993 was a transition year.I have seen both,the 4L60 and the 4L60E in 1993 model trucks,it depends on the month of the manufacture of the vehicle.Your truck could have either,or.The way to visually identify the difference is........on the driver side,the 700/4L60 trans case will have a round,black,governor cover,about 3 or 4 inches in diameter.The 4L60E case does not.The 700/4L60 also has the TV cable mounted on the passenger side of the trans case,and it routes up to the throttle body/gas pedal/accelerator linkage.The 4L60E does not.Recently,the 4L65E and 4L70E versions have been put into production.Based on your description of the malfunction symptoms,i would be inclined to say yours is probably the 4L60E version,because the speedometer malfunction occuring at exactly the same time as the shift malfunction.On a 700/4L60,the speedo malfunction would have no affect on the upshifts,the trans would operate normally.On the 4L60E,a speedo malfunction would likely cause no upshifts.You should still visually verify by the governor cover,or lack thereof,on the side of the trans case.It could just be a speed sensor malfunction if it has the "E" model.If so,it would have set a trouble code which can be accessed with a scan tool or a code reader.Hope this eliminates any confusion.Good luck!!

if memmory serves me correct its been a while since last tranny rebuild and adjustment
on a 700-r4 type transmission
make sure that the shim kit was used properly with this transmission cause wrong sized length of linkage can make the trans. shift improperly
you have the linkage under neith adjusted wrong the shift bar on tranny should face 90 degrees up towards front of vehicle engine for proper adjustment