Posts Tagged 1993

C4 (84-96)

C4 Suspension Overview

  By Chris Petris This is the first installment of a C4 suspension overview series.  Click to view the second article,   Click to view the third article The fourth generation Corvette was a radical departure from General Motors early Corvette engineering.  It eliminated a perimeter frame to support the suspension and driveline.  Two front frame rails integrated into the… Read more »

C4 (84-96)

C4, C5, and C6 Interior Squeaks

  By Chris Petris   While plastic certainly has its merits in our modern society, it can be problematic when it is used extensively in automotive interiors. Temperature extremes, excessively bumpy roads, and improper removal/reinstallation are the biggest factors that can cause annoying interior component squeaks. 1984-1989 Corvettes are arguably the worst affected, with later… Read more »

C4 (84-96)

1984-1996 Corvette EGR Diagnosis

  By Chris Petris Exhaust Gas Recirculation (EGR) came about in 1975 when catalytic converters were introduced. The inert exhaust gas was used to quell the increased heat in the engine’s cylinders from the lean fuel mixtures required to keep the catalytic converters from melting down. EGR systems also helped eliminate spark knock from the… Read more »