Crank No Start After Battery Replacement - Stuck Relays

Electricalbeginner✓ OP Confirmed

Problem

After the car sat for 5 days in a very cold garage and the battery died, a new battery was installed but the car would crank strongly with no start. There was no fuel delivery and no spark.

Strong cranking but no startNo spark at plugsNo fuel delivery (plugs white and dry)Occurred after sitting in cold garage for 5 daysNew battery just installed

Root Cause

Relay contacts were stuck or had corroded/oxidized from sitting in cold conditions. The relays responsible for fuel pump and ignition power were not closing properly, cutting off both fuel and spark.

Confidence

Moderate confidence — Original poster confirmed this resolved the issue

View Original Thread →Posted December 2019 on SupraForums.com