The EGR valve can become clogged with carbon, which causes the Check Engine Light to illuminate. This can result in moderate to severe misfires on acceleration and the EGR valve and passages will need to be cleaned.
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The coolant outlet on the front of the lower intake manifold may develop a coolant leak.
The distributor shaft bearing can become rusty, and seize causing the engine to stall or not start. The failed distributor will commonly require replacement.