TECH TIP
2011 E350 CRANKS BUT WON’T START, NO DTCS
Oct. 08 2019
Oct. 08 2019

Vehicle: 2011 Ford E 350, V8-5.4L, Automatic Transmission

Mileage: 86,002

Problem: This vehicle was towed into the shop because the engine would crank over but not start. There were no diagnostic trouble codes.

Details: On the initial call, the technician related that he had already applied battery power to the fuel pump and it ran. He also noted that there appeared to be a voltage drop in the wires between the fuel pump and the fuel pump module.

The Tech-Assist consultant suggested load testing the power and ground circuits. While load testing the ground circuit to fuel pump, the technician noted that the voltage was dropping out. He also checked the ground circuit to fuel pump module. It was also dropping out.

Together the two set out to identify the exact locations of all the fuel-pump related circuit grounds in ALLDATA Repair. Armed with that information, the technician traced the ground circuits and found a broken chassis ground strap (under passenger seat).

Confirmed Repair: The technician replaced ground strap and the fuel pump operated normally. The engine started and ran perfect. Fixed!

The ALLDATA Tech-Assist team fields cases like this every day. See how Tech-Assist can help your shop save time and money with on-call diagnostic support from ASE-certified Master Technicians. More Tech Tips 

Not an ALLDATA customer? For access to this valuable experience-based repair data and reliable OEM information, start a free trial today.

If you would like to read more articles like this one please subscribe to ALLDATA News.

Sign up for ALLDATA News