S10/T10 Blazer 4WD V6-262 4.3L (1989)
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Cap or tape any line open to atmosphere to prevent dirt and moisture from entering the system.
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Use proper wrenches when making connections on seal (O-ring) fittings. Use two wrenches to prevent distorting the lines or components.
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When connecting the flexible hose connections, hold the swaged fitting, the flare nut and the coupling at the same time using three different
wrenches to prevent turning the fitting and damaging the ground seat.
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Use seals (O-rings) in good condition. A burr or piece of dirt may cause a leak.
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Replace the seal when a connection has been broken. When replacing the seal first dip it in clean 525 viscosity refrigeration oil. Refer to
accompanying figure for fitting type and correct seal.
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When making steel to aluminum connections, use torque for aluminum tubing (refer to accompanying figures).
