A defective thick film ignition (TFI) module can cause the engine to stall while driving, or the engine may not start. A failed TFI module will require replacement.
Average mileage: 130,000 (72,000–160,000)
Engines affected: 5.8L V8, 7.5L V8
10 people reported this problem
Viewing 1 - 4 of 4 comments
While driving approximately 5-6 miles in the morning the engine cuts off and won't restart for 5 minutes or so. The problem is getting worse as time goes on.
replaced tfi, and all ignition wiring and parts
Starts and idles rough and will run OK until gets warm ands starts to stall out or its cold out runs great
not fixed yet. stalled out while running, has not started again.