Automotive Manual PDF

The next time you check the fluid level in an automatic, sniff the fluid on the end of the dip stick. If it smells like burned toast and/or has a discolored brown appearance, the fluid has cooked itself and is no longer capable of providing proper lubrication to the transmission. If you’re lucky, you may have caught the problem before serious damage has been done — but more often than not by the time the fried fluid is discovered, the transmission is also toast.
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The A-240 “E” series automatic transmission is electronically controlled. Transmission shifting and torque converter lock-up are controlled by an Electronic Controlled Transmission (ECT) Electronic Control Unit (ECU). Control unit is referred to as the ECT ECU.

NOTE: ECT ECU is combined with the engine ECU into one unit. This control unit is referred to as the engine and ECT ECU. See Figs. 1-8. In this article, control unit will be referred to as the ECT ECU on all models. The ECT ECU receives information from various input devices and uses this information to control No. 1 and No. 2 solenoids for transmission shifting and lock-up solenoid for torque converter lock-up.
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The A-140E automatic transmission is electronically controlled. Transmission shifting and torque converter lock-up are controlled by an Electronic Controlled Transmission (ECT) Electronic Control Unit (ECU). Control unit is referred to as the ECT ECU. NOTE: ECT ECU is combined with the engine ECU into one unit. This control unit is referred to as the engine and ECT ECU. See Figs. 1-3. In this article, control unit will be referred to as the ECT ECU on all models.
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The number one reason for transmission failure is fluid breakdown. Over time, the automatic transmission fluid (ATF) becomes contaminated and loses its viscosity and the ability to lubricate the moving parts within the transmission. Conventional service methods of dropping the pan and changing the filter result in only about 30-40% of the total ATF in the transmission being drained out. That leaves 60-70% of the old ATF to be mixed with the new ATF introduced during service.
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Transmission Service with the Tranny Flusher
The number one reason for transmission failure is fluid breakdown. Over time, the automatic transmission fluid (ATF) becomes contaminated and loses its viscosity and the ability to lubricate the moving parts within the transmission. Conventional service methods of dropping the pan and changing the filter result in only about 30-40% of the total ATF in the transmission being drained out. That leaves 60-70% of the old ATF to be mixed with the new ATF introduced during service. Therefore, adequate lubrication is not achieved.
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Transmission is identified by identification plate attached to transmission case, located on left side, above oil pan. Vehicle Identification Number (VIN) may also be used in identifying transmission. VIN locations are at top left of instrument panel and driver’s-side door post. VIN is used to ensure correct application of component parts and assemblies.
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Transaxle is a 4-speed overdrive electronically controlled automatic transaxle. Transaxle consists of lock-up torque converter, oil pump, 3 planetary gear sets, clutch and brake units, accumulator pistons, valve body and 4 electronic valve body solenoids. Valve body with solenoids and Transaxle Control Module (TCM) are used for controlling transaxle operation. Solenoids are controlled by TCM.
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