Plugged in at night, still won't start in morning. 12 degrees this morning..no crank no start. Yesterday 17 degrees started fine. Glow plugs just replaced (ac delco) last week. Batteries are good. i have had it at the dealership last year for the same issue and they are stumped. Hoping someone here can help.
2006 GMC savana 3500 ext 6.6 duramax cold start
- Thread starter TLSween
- Start date
Sounds like a loose connection or sticky relay from the cold weather.
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Try swapping relays in the under hood fuse box. Does the gauge cluster show it is in park? Also try shifting in neutral then cranking if it will not crank in park.
If the engine is in decent condition it will start at 0F without glow plugs.
If the engine is in decent condition it will start at 0F without glow plugs.