Thread: P38 on fire

The coolant contacts the very hot metal surface of the exhaust manifold. It separates into water and glycol...the water evaporates and the glycol component catches fire. In some instances of leaks in P38s, the result was a fire in the engine compartment...hence the TSB and recall to re-route the coolant hose.

I wonder how flammable on a 50:50 mix though. Diesel is flammable too but you'd be hard pressed to ignite it on anything other than the exhaust manifolds.

So true bee utey, sadly those things come down to proper maintenance and inspection though.