Parts for your 2003 Mitsubishi Lancer-Manifold gasket

2003 Mitsubishi Lancer manifold gasket: what it does and when to replace it

Authoritative technical sources – including the Mitsubishi Motors Workshop Manual for the 2003 Lancer (CS/CT series, 4G93/4G94 and Evolution 4G63T engines) and the Mitsubishi ASA electronic parts catalogue – specify both intake and exhaust manifold gaskets for this model. That makes a manifold gasket absolutely relevant and fitted on the 2003 Mitsubishi Lancer.

On this Lancer, the manifold gasket’s job is simple but critical: it seals the joint between the manifold and the cylinder head. On the intake side, it keeps unmetered air out so the engine doesn’t run lean, idle rough, or log fuel-trim faults. On the exhaust side, it stops hot gases from escaping before the oxygen sensor and turbo (Evolution), protecting performance, emissions, and nearby components under the bonnet. A good seal also keeps noise and fumes down and helps maintain proper engine efficiency.

There isn’t a scheduled replacement interval for manifold gaskets