1995 C4 Common Problems
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All known issues: 1995 C4
Known issues reported for the 1995 C4
C4, C5 and C6 Corvettes rely on electric cooling fans. When a relay, fan motor, sensor, fuse or wiring fails, the car may overheat in traffic or with the A/C on but run fine on the highway.
The 1992–1996 LT1 and LT4 use an Opti-Spark distributor mounted at the front of the engine, behind the water pump. If the water pump weeps coolant or moisture gets inside, the Opti-Spark can misfire, stall or stop the car from starting. Early units were known for moisture problems; later units added venting but still fail with age.
C4 Corvettes have a digital or partly digital instrument cluster. With age, displays fade, flicker, go blank or show wrong readings. Problems are often caused by aging solder joints, failing display components, or poor connections.
Most reports involve the fully digital 1984–1989 cluster.
C4 and C5 Corvettes use electric motors to raise and lower the headlights. With age, the motors, their internal gears or bushings, and the control circuits wear out. A headlight may stay down, stay up, move slowly or move only on one side.
From the C4 onward, Corvettes have many electronic modules that draw small amounts of power with the car off. Add aging batteries, aftermarket accessories, or a module that doesn't go to sleep, and the battery can go flat in days or weeks. Storage without a maintainer is the most common cause.