GM Buick/Oldsmobile/Pontiac/Full-Size 1975-1990 Repair Guide

Glow Plugs

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See Figure 1

REMOVAL & INSTALLATION



A burned out glow plug tip may bulge and then break off and drop into the pre-chamber when the glow plug is removed. If this occurs, the cylinder head must be removed, remove the pre-chamber and remove the broken tip.

  1. Disconnect the negative (-) battery cable and glow plug electrical connector.
  2.  
  3. Turn the plug out of the cylinder head slowly.
  4.  
  5. Coat the new plug with anti-seize compound for electrical components.
  6.  
  7. Torque the plug to 12 ft. lbs. (16 Nm) and connect the electrical connector.
  8.  



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Fig. Fig. 1: Diesel glow plug

 
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