C4 BOSE WOES: Repairing & Replacing 84-96 Bose Speakers & Amps

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If you own a C-4 equipped with Bose sound system, you will eventually need Bose amplifier repair or replacement. Every Bose sound system equipped C-4 uses one amplifier per speaker. This is the weak link. Amplifier capacitors are filled with electrolytic fluid which ultimately leaks out onto the circuit board causing failure. If the leak is slow, the amplifier’s circuit board can be damaged beyond repair. Electrolytic fluid is acidic and will corrode anything it touches.

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Corvette Evolution: From Status Icon to Competent Cruiser


Society often pokes fun at aging, but there are many positives to growing older that are often glossed over. Many types of wines and cheeses are encouraged to age. As a person grows older, they typically do so with increased wisdom and a better understanding of what is important in life. Fine art that was severely undervalued years ago during the artist’s life can be priceless today. We just celebrated the anniversary and amazing transformation of the Corvette over the past 60 years, a sports car that has certainly aged gracefully. (more…)

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C4, C5, and C6 Interior Squeaks


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 C4s, C5s, and C6s being less susceptible to squeaks and rattles barring improper removal and/or reinstallation techniques. (more…)

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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 increased combustion chamber temperatures. The feds were also pushing for a reduction of NOx nitrogen oxide emissions to reduce ground level ozone formation. The EGR system was an asset in many ways during the early years of emission control. As engine controls and development advanced, EGR has become obsolete for the majority of engine manufacturers. Unfortunately, there are many Corvettes on the road with EGR systems failing. (more…)

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Corvette Central C4 Cutaway Videos on YouTube

As we covered in an earlier post (“Why Cut Up a C4 Corvette?“), for the last few years, we had been discussing the possibilities of using a donor C4 for seminar and display purposes.

We knew that many owners had plenty of questions on how the C4′s were put together. Why not dissect one for science? Wrecked, salvaged and abandoned project C4s were for sale at almost every Corvette swap meet. Corvette Central’s 1988 Cutaway was found at Corvettes at Carlisle a few years ago. In cooperation with Chris Petris of Petris Enterprises in Scottsboro, AL, the C4 Cutaway Corvette became a reality, and has been making appearances at Corvette related events over the past two years.

We’ve assembled a collection of videos, hosted by Mr. Petris, covering a wide variety of common C4 ailments and remedies, troubleshooting, maintenance tips and more. Click here to access the YouTube directory page for the C4 Cutaway Corvette videos.


Enjoy and share with your fellow C4 Corvette owners.

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