glow plug relay not working on 97 ford f-250 diesel on 1997 Ford F-250

replaced relay with new one but not getting power to both big post

by in Arlington, TN on December 09, 2011
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2 answers
ANSWER by , December 09, 2011
thats the problem, not the relay. you need to find out why the power side is not working. it could be a fusible link or broken wire. then you need to find out the reason for the failure or it will happen again. Roy
ANSWER by , December 09, 2011
Besides taking it to a shop, you'll likely need the service book to test the wiring. If the relay isn't be activated when in KOEO position, then it's likely the ignition switch is bad. Always ensure perfect ground and power connections, typical domestic vehicle issues.