I have a 2002 Ford Explorer Sport Trac with an intermittent crank no start in varying outside temps. Alternator volts @14.2. Battery live. Fuel pump hums (primes) when turned over. When “crank no start occurs”, jump start with or without charge starts vehicle. Where do I start?
Intermittent Crank No Start
Replace the battery. Most likely the battery has an internal short. The battery has enough juice to crank a little but not enough to do the job proper. This is why it doesn’t take much to jump start it.
Removal and Installation
- Disconnect the battery cables. For additional information, refer to Battery Disconnect in this section.
- Remove the battery heat shield.
- Remove the hold-down bolt and the bracket.
- Take out the battery.
WARNING: When lifting a battery, excessive pressure on the end walls could cause acid to spew through the vent caps, resulting in personal injury. Lift with a battery carrier or with your hands on opposite corners.
- To install, reverse the removal procedure.