Boaterdan278michigan
Seaman Apprentice
- Joined
- Oct 18, 2025
- Messages
- 46
Today I wanted to perform a compression check on my Ford 5L EFI engines. I pulled all the spark plugs. When I used the key to turn the engines over I got a lot of gas fumes from fuel being injected into the cylinders. To avoid this, I used a push button remote switch with alligator clips to jump across the front solenoid. Seemed perfect solution as my key switch was off and so the fuel pumps weren't activated. I tested three cylinders and then the switch quit working. Strange enough, now the key nor the push button won't turn them over either. Great battery voltage. I looked for a blown breaker or fuse but cannot find anything obvious. Any ideas what I may have done?
