Some examples of Chevrolet vehicles that can carry the 700R4 include the Blazer, the Camaro, the Corvette, and the Impala. It was designed for truck and larger car applications. Should you need further help please just ask. The 700R4 transmission was introduced by Chevrolet in 1981 to run with the 1982 model year vehicles. This model transmission does not have a modulator valve. The transmission coolers were known to leak in the radiators. If you have a 700R4 overdrive transmission? and no external leaks.Look at the radiator as the source of the problem. Pull the vacuum line from the valve and if there is any oil at the vacuum port you will have found the source of fluid loss. These transmissions are offered in two styles that can withstand the rigors of street machines powered by engines producing 400-550 horsepower. When the diaphram ruptures the fluid is sucked out of the transmission and burnt in the engine. FTI 700R4 automatic transmissions are designed for street rodders/crusiers who want mild power, good fuel mileage, and reliability. The other end will be connected to the intake manifold at the rear of the carburator. This will be a metal line that runs over the top of the bell housing. It will be on the passenger side of the transmission and have a vacuum line attached to it. If you have a turbo-hydromatic 400 transmission look at the modulator valve. If you are using transmission oil and see no leaks on the ground I would look at the transmission as the source of the problem. there are 82 up throttle shafts that can be swapped in earlier versions to work properly.Hello shanebuerman: My name is Roger and I will help you. If one is using some kind of throttle body fuel injection check with the manufacturer. so its under 200 pounds at fairly high rpms. Transmission oil cooler pressure is going to be slightly less than transmission line pressure. they make a lot of money rebuilding them again and again. don't expect transmissions shops to help with this knowledge. the carbs that have set up for TH350s will have the wrong distance and will pull the TV cable out of adjustment every time you go wide open throttle.at that point the line pressure will drop and the transmission will slip. The biggest issue is the throttle valve cable hook up on the carb throttle lever.there are special adapters for the holley and the edelbrock carbs to put the distance from the centerline of the throttle shaft to the centerline of the TV cable hook up pin. Oil from the cooler is directed to the transmission lubrication system. Converter return oil is directed to the transmission cooler by the converter clutch apply valve. The converter clutch apply valve directs oil to the release side of the converter clutch. When the pump output exceeds the demand of line pressure, oil from the pressure regulator valve is directed to the converter clutch apply valve. Oil flows from the pump to the pressure regulator valve which regulates the pump pressure. Equipped with a TCI contant pressure valve body, this solves the issue of mis-adjusted TV cables causing early failure. it will burn up within 15 miles.įrom the manual. Details The TCI 700R4 StreetFighter Transmission for Chevy engine applications is tough enough to withstand the rigors of the toughest street machines up to 500 ft lbs of torque with a non-supercharged system using pump gasoline. without transmission oil cooler flow your 700R4 will not just fail. goes back in the transmission but is used to lubricate the rear case bushing, the sun gears/planetaries, the sprags. If it’s not in lock up, the tack will move up or down rapidly. You can tell if it is in lock up by watching the tach when you accelerate or decelerate in 4th gear. the transmission oil cooler flow comes off the pump. How do I know if my 700r4 is locked up 12 volts is applied to a solenoid valve in the transmission when in 4th gear determined by a 4th gear pressure switch in the transmission. The transmission oil cooler lines must NOT be KINKED. You have to use transmission Hose that says Transmission Oil cooler hose.
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