Why is the 700R4 transmission not electronically controlled?
Why is the 700R4 transmission not electronically controlled?
A lot of people like the 700r4 because of its excellent durability. It is also very easy to find replacement parts for this transmission. The 700r4 transmission was not electronically controlled yet; it was hydraulic pressure controlled with a TV cable which acted as a throttle position sensor to control the gear shifting.
How to disconnect throttle valve cable on 700R4 TV?
To make sure disconnect the cable, hold the throttle wide open with your left hand, pull the cable fully out with your right hand and see if the cable end lines up with the button on the throttle lever. The cable should also be pulled out 3/8 to 1/2 of an inch at idle.
What do you need to know about 200-4R transmission?
The throttle valve cable controls transmission pressure. Adjusting this cable is the most important step when installing a 700R4, 4L60 or 200-4R transmission. #5. The final step is to adjust the throttle valve cable. The cable must be adjusted so it is pulled fully out at wide-open throttle.
Why does my Chevy 700R4 not shift into 3rd?
Being a former Chevrolet Technician I can tell you that is a common failure on the early model 700R4. Up until 1993 the trans used a TV cable for throttle input to the trans. In 1993 the trans was redesigned and now has shift solenoids for shift control.
Is there a TV cable for the 700R4 Trans?
Being a former Chevrolet Technician I can tell you that is a common failure on the early model 700R4. Up until 1993 the trans used a TV cable for throttle input to the trans. In 1993 the trans was redesigned and now has shift solenoids for shift control. No longer does it have a TV cable or Governor.
To make sure disconnect the cable, hold the throttle wide open with your left hand, pull the cable fully out with your right hand and see if the cable end lines up with the button on the throttle lever. The cable should also be pulled out 3/8 to 1/2 of an inch at idle.
How to adjust the transmission on a 700R4?
Adjustment is easily done once the cable is properly installed, press in on the side of the adjuster body (a button like thing, its metal) on the throttle end and push the adjuster all the way into the adjuster body. Release the “button” and slowly open the throttle completely by hand, it will be a bit tight doing so.
What was the problem with the 700R4 diesel engine?
Some of this was due to overstressed parts, but a lot of the problems were associated with the 700R4’s new Throttle Valve (TV) and TV cable that replaced the vacuum modulator in the older automatic transmissions. The 6.2L diesel engine (also introduced in 1982), with its lack of manifold vacuum, may have hastened the addition of the TV.
