1990 Ford F350 7.3 IDI: seized 6 years, drove out of the shop
The story
This is my 1990 Ford F350 with the 7.3 IDI diesel: a crew-cab dually. It sat about six years seized before it was freed and drove out of the shop.
Why it sat
The 7.3 IDI was seized solid for about six years. Freeing it is covered in How to free a seized engine.
Pulled the Head on a Seized 7.3 IDI: Why It Locked Up Watch the Short: Pulled the Head on a Seized 7.3 IDI: Why It Locked Up ↗
First drive
Once it was free, the truck drove out of the shop. How far it went after that is unknown. A miss a viewer heard on it was from a cracked head.
Will it drive after sitting seized for about six years? Watch the Short: Sat 6 Years: Will My 1990 F350 7.3 IDI Drive? ↗
Stuck 4x4 wheel
Stuck 4x4 Wheel: How Do You Break It Free? Watch the Short: Stuck 4x4 Wheel: How Do You Break It Free? ↗
What every barn find taught me: Getting a car running after it sat for years
See the full seized-to-drive video below.
Build facts
| Vehicle | 1990 Ford F350, crew-cab dually |
|---|---|
| Engine | 7.3L IDI diesel |
| Parked | About 6 years, seized |
| First drive | Yes — drove out of the shop after it was freed |
| Distance driven | Unknown |
| Known issue | A miss a viewer heard was from a cracked head |
| Status | Work in progress |
Every episode
- Seized 7.3 IDI Sat 6 Years: Will It Run AND Drive? (on YouTube) ↗
- Sat 6 Years: Will My 1990 F350 7.3 IDI Drive? (on YouTube) ↗
- Stuck 4x4 Wheel: How Do You Break It Free? (on YouTube) ↗
- Pulled the Head on a Seized 7.3 IDI: Why It Locked Up (on YouTube) ↗
- Seized 7.3 IDI: Will It Break Free? (on YouTube) ↗
- How Many Hits to Get to the Center of a Brake Drum (on YouTube) ↗
- Brand New Pump, Dead Solenoid + the Socket Guessing Game (on YouTube) ↗

