Hard Starting or No Start - Ford Explorer 2020
The engine cranks but takes longer to start, and the condition is progressively worsening. This typically indicates a fuel delivery issue, weak battery, or failing starter, but given the gradual onset, a fuel system problem is most likely.
Diagnosis Details
Possible Causes
Fuel pump failing or weak fuel pressure - gradual loss of prime or pressure leads to extended cranking.
Clogged fuel filter - restricts fuel flow, causing hard starts that worsen over time.
Weak battery or poor electrical connections - voltage drop reduces starter and fuel pump performance.
Faulty crankshaft position sensor - intermittent signal delays ignition timing.
Fuel injector leak or pressure regulator failure - causes fuel pressure loss after shutdown.
Related OBD-II Codes
Not satisfied with this diagnosis?
Try Another DiagnosisWhat To Do Next
What You Should Do
Check battery voltage and clean terminals.
Test fuel pressure with a gauge (should be 55-65 psi).
Inspect fuel filter for clogs.
Listen for fuel pump prime when key is turned to ON.
If pressure is low, replace fuel pump and filter.
If battery is weak, charge or replace.
Related Repairs
Share this diagnosis
Help others with similar symptoms
Disclaimer: This AI-generated diagnosis is for informational reference only. Always consult a qualified mechanic for an in-person inspection. AutOwner is not responsible for decisions made based on this information.
