Categories: Truck Repair

ISUZU Truck Flood Conditions Inspection Guidelines

If it is suspected that an Isuzu vehicle was subjected to flood conditions where some or all electrical components may have been submerged, please follow the guidelines and procedure outlined in this service bulletin.

 

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PRIOR TO ANY WORK OR INSPECTION

1.Disconnect battery cables immediately.
IMPORTANT: DO NOT attempt to turn on the ignition or start the truck until the extent of the damage has been determined.

PREPARE VEHICLE FOR INSPECTION

1.Pressure wash and clean vehicle

a.Do not spray water directly on fuse/relay boxes, wire connectors and electrical components and/or devices

b.Remove all debris and contaminants before removing or disconnecting any components

 

INSPECTION PROCEDURE

NOTE: Clean, inspect and repair all affected components as necessary.

1.Determine the highest level of submersion to allow the assessment of potential damage

a.Level 1 – Under cab floor

b.Level 2 – Under seat rail

c.Level 3 – Under instrument panel cluster meter

d.Level 4 – Above instrument panel cluster meter

Note: In most cases if the submersion levels are 2-4 – all harnesses will need to be replaced.

2.Determine if the water damage is fresh or salt water

a.Salt water is much more corrosive than fresh water and affects wire harnesses much faster than fresh water

 

3.Inspect for water lines “witness marks” or water intrusion into components

a.Air cleaner assembly

b.DPF/SCR or exhaust assemblies

c.Cab and/or frame

d.Engine oil dipstick/PCV system

e.Transmission vent hose and dipstick

f.P/S and brake fluid reservoirs

 

4.Inspect all wire harness connectors that were submerged

NOTE: Connectors and modules (whether internal or external) are not designed to be submerged under water and will suffer damage. Once a connector has been submerged for any length of time, it should always be opened up and inspected for water intrusion and corrosion. If the connector cannot be cleaned replacement will be necessary.

IMPORTANT:
As these conditions are not due to manufacturer defect, such repairs are not covered under warranty. If there are questions or concerns regarding a specific component or this information bulletin please contact your DSPM or Isuzu Technical Assistance.

For more guide about ISUZU,please refer to:ISUZU Trouble Repair.

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