Van runs fine for about an hour then no spark. after a few hours starts right up and runs about an hour again. Endless cycle.
Aug 2, 2019 at 5:16 AM
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KASEKENNY
✓Experienced Mechanic
18,907 POSTS
Hi Barton,
This sounds like a crank sensor issue. Here is a guide that walks through the symptoms of a cranks sensor issue. Pay particular attention to its intermittent operation when it gets hot.