Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSISUZU2004ASCENDER 2WD L6-4.2LREPAIR AND DIAGNOSISSTARTING AND CHARGINGBATTERYSERVICE AND REPAIRBATTERY PROTECTION DURING VEHICLE STORAGE
2004 Isuzu Ascender 2WD L6-4.2L
Battery Protection During Vehicle Storage
2004 Isuzu Ascender 2WD L6-4.2LSECTION Battery Protection During Vehicle Storage
Battery Protection During Vehicle Storage
Certain devices on the vehicle maintain a small continuous current drain on the battery. A battery that is not used for an extended period of time will discharge. Eventually permanent damage will result. Discharged batteries will also freeze in cold weather. Refer to Battery Inspection/Test. In order to maintain a battery state of charge while storing the vehicle for more than 30 days:
IMPORTANT: If a green dot is not visible in the hydrometer, charge the battery. Refer to Battery Charging.
1. Ensure that the green dot is visible in the built-in hydrometer.
CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.
2. Disconnect the battery ground to protect the battery from discharge by parasitic current drains.
When the battery cannot be disconnected:
1. Maintain a high state of charge.
2. Establish a regular schedule for recharging the battery every 20-45 days.
A battery that has remained in a discharged state for a long period of time is difficult to recharge or may be permanently damaged.
Certain devices on the vehicle maintain a small continuous current drain on the battery. A battery that is not used for an extended period of time will discharge. Eventually permanent damage will result. Discharged batteries will also freeze in cold weather. Refer to Battery Inspection/Test. In order to maintain a battery state of charge while storing the vehicle for more than 30 days:
IMPORTANT: If a green dot is not visible in the hydrometer, charge the battery. Refer to Battery Charging.
1. Ensure that the green dot is visible in the built-in hydrometer.
CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.
2. Disconnect the battery ground to protect the battery from discharge by parasitic current drains.
When the battery cannot be disconnected:
1. Maintain a high state of charge.
2. Establish a regular schedule for recharging the battery every 20-45 days.
A battery that has remained in a discharged state for a long period of time is difficult to recharge or may be permanently damaged.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.