Tag: C4

Lumbar Pump Repair (Sport Seats)

This tip provides additional information to the Tech Tip “FIXING YOUR C4 SPORT SEAT LUMBAR SUPPORT” authored by Bob Thibodeau on 6/15/2001. 1. An alternative source for material to replace the ruptured diaphragm is a bicycle inner tube. It is much thicker than the original diaphragm, and should provide longer “life”. To prepare the tube, […] More »

  Comments | By - April 21, 2010

Replace Outer Window Seals

I ordered my seals form Eckler´┐Żs. Fit was perfect and included six replacement pop rivets but no instructions. I use a combination of previous posts and a little common sense to get the job done. The procedure was done on my 91. Adjustments should be made for other years. Took about 30 min per door […] More »

  Comments | By - April 21, 2010

ZF Transmission Recommended

The 6 speed manual transmission in 1989-1996 Corvettes was produced by German automotive components company ZF Industries http://www.zf-group.de/. The Corvette Owners Manual clearly states that this transmission does not need service, but the transmission fluid level should only be checked and kept full. A bit of research confirmed that ZF does not share this recommendation […] More »

  Comments | By - April 21, 2010

Additional Headlight Bushing Replacement Info 1988 Corvette

Following the tech tip from Jeff Loftis, I found these two circumstances to be true for my 1988. I don\’t know if this will apply to other model years. 1) One of the two torx bolts holding the headlight motor to the frame is blocked by another part of the headlight bracket assembly. Theres is […] More »

  Comments | By - April 21, 2010

C4 Rear Axle Recommended Maintenance

The rear axels in C4 Corvettes are from Dana Corporation http://www.dana.com/ GM does not specify a service interval in the owners manual. Dana Corporation makes the following recommendations: 1. If there is any possibility of water contamination the oil needs to be changed immediately.

  Comments | By - April 21, 2010

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