Fuel System

The short section of high pressure fuel hose between the fuel rail and the fuel pressure regulator, which runs alongside the intake manifold, may be subject to hardening. In the event that this line does harden, fuel leaks could develop between the hose and metal pipe fittings. Leaking fuel could ignite on the hot exhaust system and lead to an engine compartment fire. Correction: Fuel hose will be replaced on 924s, 944 and 944 turbo vehicles and the fuel hose and fuel rail will be replaced on 944s vehicles.