1999 Isuzu NPR diesel

Discussion in 'Trucks and Trailers' started by MowJo, Jul 7, 2002.

  1. MowJo

    MowJo LawnSite Member
    from KY
    Posts: 70

    The glow plug dash light randomly flashes when engine is warmed up. What does this mean? The owners manual doesn't address this specific issue. Are the glow plugs wearing out?

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