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Take a test light and put the clamp end to a positive wire and touch needle end of the test light to the top of the glow plug. If the light lights up then its good. if not then replace the glow plug.
86 Clifford and Clayton Smith,
Welcome to FTE and the IDI diesel forum.
Glow plugs changed from the 86 model which used the old style ZD 1A glow plugs that had spade connector to the 87 model which used the new style ZD 9 glow plugs with a bullet connector.
Last edited by Dave Sponaugle; Mar 2, 2008 at 12:11 PM.
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.