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Why is my truck hard t start

(1999 Ford F-250 Super Duty)
in Orchard, CO on October 06, 2016
my 7.3 diesel is hard to start if not plugged for a period of time
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Popular Answer
on October 06, 2016
Have a professional scan test performed to find the culprit .. Most likely Inoperative *glow plugs* due to relay failure but hands-on testing IS required to confirm and arrange a plan for effective repair.
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