DIESEL GLOW PLUG SYSTEM - INHIBIT SWITCH INSTALLATION

MANY TIMES A 6.2L DIESEL WILL NOT REQUIRE GLOW PLUGS TO START, SUCH AS A WARM ENGINE OR WARM CLIMATE. TO INHIBIT GLOW PLUG SYSTEM FUNCTION WHEN ENGINE COOLANT TEMPERATURE IS ABOVE 125 DEGREE F, THE FOLLOWING PARTS CAN BE INSTALLED: INHIBIT WIRE ASSEMBLY; SHOULD BE ASSEMBLED PER ATTACHED DRAWING (FIGURE 3). GLOW PLUG INHIBIT TEMPERATURE SWITCH INSTALLATION 1. DISCONNECT BATTERIES. 2. REPLACE COVER ON R.H. REAR HEAD (FIGURE 1A) WITH COVER 14028949 (SAME AS ON L.H. HEAD) FIGURE 1B). USE NEW GASKET 14028951. DRAIN COOLANT AS REQUIRED. 3. INSTALL NEW TEMPERATURE SWITCH 15599010 (WITH SOCKET WRENCH, DO NOT USE OPEN END WRENCH) USING APPROPRIATE PIPE THREAD SEALER. TIGHTEN TO 19-27 N-M (13-20 LB. FT.). REPLACE ANY LOST COOLANT. 4. CONNECT GLOW PLUG INHIBIT WIRE ASSEMBLY TO TEMPERATURE SWITCH. 5. ROUTE THE WIRE ASSEMBLY TOWARD THE LEFT SIDE OF THE VEHICLE, STRAP TO THE ENGINE HARNESS AS REQUIRED. 6. DISCONNECT THE 4-WAY ENGINE HARNESS CONNECTOR FROM ITS MATE ON THE GLOW PLUG RELAY EXTENSION HARNESS 12031493 (FIGURE 2). 7. REMOVE THE LT. BLUE WIRE FEMALE TERMINAL FROM THE ENGINE HARNESS 4-WAY CONNECTOR AND INSTALL CONNECTOR BODY 6288704 ON THIS TERMINAL. PLUG MATING CONNECTOR ON NEW JUMPER WIRE ASSEMBLY (LT. BLUE/BLACK STRIPE) TO 6288704. 8. INSERT FEMALE TERMINAL (LT. BLUE WIRE) OF JUMPER WIRE ASSEMBLY INTO EMPTY CAVITY OF 4-WAY CONNECTOR. RECONNECT 4-WAY CONNECTORS. 9. RECONNECT BATTERIES.

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