Engine - Coolant Leak from Engine Block: Overview

01-092

December 18, 2001

Applies To: 1999 Accord L4 - ALL VIN 1HG... only
2000 Accord L4 - From VIN 1HGCF8...YA000001 thru 1HGCF8...YA069947
- From VIN 1HGCG3...YA000001 thru 1HGCG3...YA009157
- From VIN 1HGCG5...YA000001 thru 1HGCG5...YA067156
- From VIN 1HGCG6...YA000001 thru 1HGCG6...YA067646

Coolant Leak From the Engine Block
(Supersedes S/B 01-092, dated October 23, 2001)

** Indicates updated information **

SYMPTOM

Coolant is leaking where the connecting pipe fits into the engine block.

PROBABLE CAUSE

The 0-ring groove diameter of the connecting pipe is too small. This, together with accumulated road grime, can cause the coolant to seep past the 0-ring. This problem is especially common in areas of the U.S. where the roads are treated for a buildup of snow and ice.

CORRECTIVE ACTION

Look for a coolant trail where the connecting pipe fits into the engine block. Replace the connecting pipe and both 0-rings if you see a coolant trail.

PARTS INFORMATION

Connecting Pipe:
P/N 19505-PAA-A00, H/C 5429162

0-Ring (two required for connecting pipe):
P/N 91314-PH7-003, H/C 2373553

Gasket (0-Ring) (one required for thermostat housing):
P/N 91312-P0A-000, H/C 4326740

Oil Filter:
P/N 15400-P0H-305, H/C 4908182

REQUIRED MATERIALS

Honda All Season Antifreeze/Coolant Type 2 (1 quart):

** P/N 0L999-9002, H/C 6562672 **

5W-20 Engine Oil (1 quart):
P/N 08798-9023, H/C 6512610

3M Scotch-Brite General Purpose Pad - Maroon:
(Commercially available. 3M color-codes these pads to denote specific uses. You need the maroon-colored pad for this repair.)

WARRANTY CLAIM INFORMATION

In warranty:
The normal warranty applies.

Operation Number: 114109

Flat Rate Time: 0.8 hour

Failed Part: P/N 19505-PAA-A00
H/C 5429162

Defect Code: 060

Contention Code: B06

Template ID: 01-092A

Skill Level: Repair Technician

Out of warranty:
Any repair performed after warranty expiration may be eligible for goodwill consideration by the District Service Manager or your Zone Office. You must request consideration, and get a decision, before starting work.

DIAGNOSIS





Raise the vehicle on a lift. Look for a coolant trail where the connecting pipe fits into the engine block.

^ If you see a coolant trail, go to REPAIR PROCEDURE.

^ If you do not see a coolant trail, look for other possible causes for the leak.





Disclaimer