Symptom Chart: Starting System

WARNING: This page is about a different car, the 2018 Ford F-350 Super Duty and 2018 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.

Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .

Condition	Possible Sources	Actions
The engine does not crank - without Push-button Start	Refer to the Pinpoint Test	GO to Pinpoint Test A
The engine does not crank - with Push-button Start	Refer to the Pinpoint Test	GO to Pinpoint Test B
The engine cranks slowly	Refer to the Pinpoint Test	PERFORM the starter system component test. REFER to Starter Motor - Positive Circuit Test .
The engine cranks but will not start	Fuses PCM Fuel pump Fuel pump relay Starter Wiring, terminals or connectors	Refer to ENGINE CONTROLS - SYMPTOM CHARTS (EXCEPT DIESEL & HYBRID) .
Unusual starter noise	Refer to the Pinpoint Test	GO to Pinpoint Test C
The starter spins but the engine does not crank	Starter motor	INSPECT the starter motor mounting and engagement. REPAIR as necessary.
The starter spins but the engine does not crank	Damaged flexplate	INSPECT the flexplate for damaged, missing or worn teeth. REPAIR as necessary.
The starter does not disengage from the flexplate	Starter relay Wiring, terminals or connectors	REMOVE the starter relay. If the engine stops cranking, INSTALL a new relay. If the engine continues to crank, REPAIR circuit CDC25 (BN/GN) for a short to voltage.
The remote start is inoperative	Remote start feature not enabled Passive Key or battery PCM Wiring, terminals or connectors	REFER to: Locks, Latches and Entry Systems .
The remote start has poor range performance	Passive key or battery After market systems High power devices TV/radio transmission towers	REFER to: Locks, Latches and Entry Systems .