Engine overheating

1999 Honda Accord Problem

The Problem

Avatar Phil The Bread
Joined: 9 years ago | Profile

The fault began about after 100 miles of motorway driving when the temperature guage started to flick from mid position to hot and back again . On opening the bonnet It became clear that the cooling fluid had been blown out of the expansion tank . I refilled this and tested the car for about 20 miles the next day on local roads and everything seemed fine . On the return motorway journey the same problem occured after about 110 miles. I have since been driving too work locally about 4 miles in traffic ( 30 mins ) and although the level in the expansion tank has risen about an inch I have had no further problems . There are no visible water leaks and the car does not seem to be losing water.Is this likely to be a head gasket problem ?

Car Honda Accord
Variant 3.0 v6 coupe
Model Year 1999
Category Leaks & Noises

All Honda Accord Problems


Avatar whittingehame
Joined: 9 years ago | Fixes: 12,009 | Profile

Seems the cooling system is pressurising when engine put under load , suggesting head gasket leak . Easiest way to check is to get a sniff test ( block test ) carried out and eliminate that possible cause . A pressure test on cooling system would should any exterior leaks i.e water pump etc . I would start off with these checks first before getting too involved with other possible causes.

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