Question about 1987 Nissan Pathfinder
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Posted on Jan 02, 2017
SOURCE: 2.8l rd28t ohc 6cyl patrol
if only 3 plugs heat, probabilly one of the two pre-heat relays is defective ( or it's command ).
The relays are located left in the engin compartment, just in front of the battery and in the battery box. They should have green connectors.
If there is no fault found at the relays, but on their 'command', the pre-heat control box is located IN te vehicle under the steering column. ( Black plastic box with 4 screws, and a 16 or 20 position connector for engines with EGR )
Hope this explanation helps
Fabrice from belgium
Posted on Apr 02, 2009
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