Tag: C4

How To Adjust the Early C4 TPS and Idle Speed

How to Adjust your Early C4 TPS and Idle Speed by Lars Grimsrud SVE Automotive Restoration Musclecar, Collector & Exotic Auto Repair & Restoration Broomfield, CO Rev. New 6-15-00 This tech paper will discuss the procedure for correct adjustment of the Minimum Idle Speed and for adjustment of the Throttle Position Switch (TPS) on the […] More »

  Comments | By - April 21, 2010

Idle Air Control (IAC) Valve for LT1 and LT4

This is from the 1994 GM Factory Serive Manual, Book 2: IDLE AIR CONTROL (IAC) VALVE Remove or Disconnect 1. Electrical connector from IAC valve. 2. IAC valve assembly attaching screws. 3. IAC valve assembly. NOTICE: On IAC valves that have been in service: Do not push or pull on the IAC valve pintle. The […] More »

  Comments | By - April 21, 2010

Optispark Repair

You can make the LT1 \’92-\’94 Optispark setup more reliable than a �95-�96, even with the early distributor configuration. Buy a $12 \’96 GM Vette distributor vacuum harness assy. Buy a $4 clear plastic fuel filter. Buy a $3 tube of premium black Permatex RTV, because it withstands the highest temps. Reserve a long day […] More »

  Comments | By - April 21, 2010

Steering Wheel Replacement on a Budget

I just completed replacing my steering wheel on a budget. I have a 85 with tilt and telescopic. I installed a grant wheel with the hub adapter for under $40.00, I used the hub adapter for up to 1989 Cadilac without telecopic wheel their part # 3196. Advance auto parts is nice enough to loan […] More »

  Comments | By - April 21, 2010

1994-1996 Power Antenna Motor Replacement

Let me start off by saying that this is very frustrating to do the first time around. Don\’t worry, and don\’t lose your cool. I did this on my 1994 coupe. It took me around four hours because I didn\’t know what I was doing and the other set of instructions didn\’t detail how to […] More »

  Comments | By - April 21, 2010

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