JD 445 Stalling

ace70830 · Jul 24, 2014

Just joined and am posting my problem, and looking for cures. I'm working on my mother-inlaws JD 445 with the Kaw FD620D EFI engine. Starts just fine and will run for 30-45 minutes, then engine just dies like right now! Engine is not overheated, but will not start for anyplace from 20 minutes to 2 hours. Then it is like nothing ever happened. I've changed the plugs, checked fuses, relays, voltage at all sensors, fuel pressure. Tractor still dies. I read a post at a differant site about a bad MAP sensor and have bite the bullet and ordered one to try it out. ($266.00)

Yellowfever440 · Jul 28, 2014

Sorry this is so late look into the ignition delay relay module

ace70830 · Jul 28, 2014

I would but the 445 doesn't have one only the 425 does, per the Tech Manual. The 425 engine is carburated and the 445 is fuel injected. But thanks for the reply. (I look for it anyway.) I'll know tomarrow if the MAP sensor does the trick as it came in today, will let you know.

ace70830 · Jul 29, 2014

Well, installed the new MAP sensor and Got over 2hrs of mowing without the engine quiting, but a new problem. After mowing stopped and refueled, low and behold the thing won't start. after I cooled down and the tractor did too it started fine. mowed 2 more hours shut down and restarted 3 times took a break and it refused to start. Breaking out the book again and will let you know.