Question about 2002 Ford F250 Super Duty SuperCab

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Ford 2002 f250 7.3 diesel won't start on cold mornings just replaced the cold start relay and still won't start...what else could it be?

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It probably is your glow plugs which are controlled by the cold start relay. They burn out over time. This is normal. Haynes Diesel Engine Repair Manual, part 10330, will walk you through the diagnosis and replacement easily. It's about $20. Hope this helps.

Posted on Oct 05, 2009

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