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no cold start

  1. 99 7.3 no start when cold

    99-03 7.3 Motor Problems
    i have a 99 7.3 with a no start when cold issue. I've replaced glow plugs (motorcraft) glow plug relay also checked the old one with a test light to the neg battery post and it checked ok also valve cover gaskets checked ok. I can crank on it for awhile and is sounds like it backfires then it...
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