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1990 Chevrolet Corvette - Page 2 Questions & Answers
Orifice tube installation
The orifice tube is located in the evaporator inlet pipe at the liquid line connection. The evaporator is located in the right rear side of the engine compartment. .
Will not start
Resistor in key may be bad or your VATS system could be the problem. If key resistor is bad, computer can't recognize the key. Vats is the worst thing ever installed in a Vette
Why is heat blown out when ac is comp is working
You may have either or combination of two problems.
1- low refrigerant - may have a leak.
2- no vacuum going into a/c heater control - and the air mixer flap is bringing in hot air from heater core as well. The vacuum hoses on most GM products are hard plastic, and tend to get very brittle with hot engine compartment.
1990 corvette rearview mirror light stays on
Check switches at door jams looks like a black button they wear out since its just a basic contact switch just remove the switch from the door jam remove the two wires ( some are hardwired to the switch if so you will have to snip the wires if not just disconnect the plug) now twist the wires together or use a small piece of wire to short the plug. This will shut off the light assuming that there is no short in the switch wiring and the switch on the other side of vehicle is functional
1990 corvette will not take
Sounds like it might be a timing problem but,first check fuel pressure with engine running you should have 30-44 psi.This will give us a place to start.
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