20 Most Recent 1977 Chevrolet Corvette - Page 8 Questions & Answers

press the brake when removing the key.

Does the ac unit fans come on? Also if it does come on is it only on bottom floor vents, or defroster only.

ac compresor relay diagram/scamatic

Is cranking speed slow? Do a voltage drop test on battery cables.and a high output amp meter to test starter draw. normal ampere draw should be 250-350 amps cold and 300-375 amps hot as engine turns these readings should drop to 200-250 amps if not bad starter.

the charging system consists of the battery and the cables , ,alternator and its wiring. the battery must be good charged and clean connections. the alternator should output 13.5 to 15 volts. the heavy lead from the alternator should be connected to pos cable on battery

raise power seat to max height. remove the covers on floor bolts and remove seatbelt anchors. disconnect wiring under seat

On all older vehicles with a carburetor there is an adjustment for high and low idle. Adjust the high idle so that it isn't so high

The coil on the gauge is bad. Need to replace the gauge.

Sounds like the alternator belt might be slipping and needs to be tighten.

check for a misplaced rocker cover gasket. Check that it has not squeezed out on in and that all the bolts went through the holes in the gasket

IF the ignition system was changed I would go back to basics and checking ignition timing. Check advance in the distributor is working as the removed unit probably had an inbuilt circuit that altered the timing to suit the rpm's