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Toyota Tercel 1984-1994 Repair Guide

Refrigerant Lines



See Figures 1 and 2

On models equipped with a Supplemental Restraint System (SRS) or "air bag,'' work must NOT be started until at least 90 seconds have passed from the time that both the ignition switch is turned to the LOCK position and the negative cable is disconnected from the battery.

In certain areas it may be illegal to service air conditioning components unless you are certified, consult with your local authorities.

Refrigerant lines are secured with either threaded-type fittings or block-type fittings. It is very important to use a back-up wrench on threaded-type fittings to avoid twisting the line. Block-type fittings are simply secured by attaching bolts.

Apply a few drops of clean refrigerant oil to O-rings (always use new ones) and torque their fittings or attaching bolts to proper specifications. Failure to do so can result in broken O-rings, cracked fittings, stripped threads and poor sealing. All of these lead to refrigerant leaks and eventual air conditioning system destruction. It is also important to note that R-12 system components cannot be used in R134a systems. This includes O-rings! The use of improper refrigerant and/or oil will only result in improper cooling and total system destruction.

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Fig. Fig. 1: Refrigerant line routing commonly found on wagons and 1984-1986 sedans

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Fig. Fig. 2: Refrigerant line routing found on most 1987-1994 sedans