20 Most Recent 1981 Chevrolet Corvette - Page 5 Questions & Answers

could be a bad brake light switch which is mounted near the brake pedal under the dash try adjusting the plunger which contacts the pedal maybe its on going in far enough otherwise replace the brake light switch

1981 Chevrolet... | Answered on May 16, 2011

fuse if not the relay

1981 Chevrolet... | Answered on Apr 15, 2011

if you talking about removing pitman arm.you need a pitman arm tool J - 6632 or equivalent.the auto parts store should have one or snap on tools.

1981 Chevrolet... | Answered on Apr 14, 2011

Double check all your upper gaskets for a vac leak... spray brake clean around intake surfaces - if idles up you found your vac leak.

1981 Chevrolet... | Answered on Mar 29, 2011

Sounds to me like you have the wrong door pin set but keep in mind that the pin will take some fairly hard "tapping" to seat in the bushing.

1981 Chevrolet... | Answered on Feb 22, 2011

  1. The observation with your vehicle implies mechanical malfunctions likely caused by insufficient, clogged, or burnout lubrication fluids. Since the component parts experiencing malfunction are observable at significant vehicle areas like power drive trains, several conditions are likely factors to driver's suspicion. For example, the drive train of significant mechanical sprockets linked at joints making propulsion possible with the control lever situated at drivers seating area is significant reason of concern. First, the driver's lever control functions hydraulically as modern improvement made possible with fluid lubrications, and several absorptions chambers. Once, an engineered hydraulic mechanical lever is realized to dispense manual contact requires inspections. First, a mechanical inspection to ascertain the conditions of constutuents providing hydraulic should be made on the vehicle. The possible outcomes include findings of an absence of faulty turbines implying no wear had occurred. Second, the observation findings may ascertain a burnout fluid that may require replacement procedures. For example, burnout hydraulic fluids usually may require cleaning draining, cleaning the residue slug from turbine areas making possible replacement of newer fluids. Hydraulic fluid conditions usually may require resistant variety that performs under overexerted conditions. For example, the fluid type may vary depending on the task requirements of the vehicle. Also, the type of condition expectations of the vehicle would require frequent hydraulic inspections.

1981 Chevrolet... | Answered on Jan 22, 2011

sounds like you have a bad ground in the dash area or possibly the brake arm is contacting or rubbing a wire when you press on it. these wires problems are hard to find and take a lot of time. start by investigating the brake peddle area

1981 Chevrolet... | Answered on Jan 18, 2011

If it is necessary to remove the heater assembly, the cooling system must be drained before removing the heater core.
When a heater core leaks, a new heater core is installed or the old one repaired.
Heater Housing
  • The heater housing is usually under the dash and must be removed to gain access to the heater core.
  • Procedures for replacing the heater core vary with the year, make, and model of car. It threfore necessary to consult the manufacturer's repair manuals for the proper procedure for replacement.
f74-01.gif The heater housing is disassembled to get to the heater core. Heater Core
  • Remove the access panels(s) or the split heater/air conditioning case to gain acess to the heater core.
  • Remove the heater coolant hoses.
  • Remove the cable and/or vacuum control lines (if equipped).
  • Remove the heater core securing brackets and/or clamps.
  • Lift the core from the case. Do not use force. Take care not to damage the fins of the heater core when removing.
  • To reinstall the heater core, reverse the removal steps.
When the heater core leaks and must be repaired or replaced, it is a very difficult and time-consuming job primarily because of the core's location deep within the firewall of the car. For this reason always leak test a replacement heater core before installation.

1981 Chevrolet... | Answered on Jan 11, 2011

These instructions come from Chilton.
1. Disconnect the battery negative first.
2. Unbolt the A/C compressor and move it out of the way but DO NOT disconnect the lines from the compressor.
3. Remove the coolant resevoir, if you have one.
4. Disconnect the wiring from the motor, and the cooling tube if there is one.
5. Remove the mounting screws from the motor and pull it out. If it sticks because it is attached with a sealer, then pry GENTLY against the case to remove the motor.
6. Installation is the reverse.
These instructions are only good for 80-82 models. Hope this helps.

1981 Chevrolet... | Answered on Dec 22, 2010

First check each wheel brake cylinder for small leaks. If no leaks then the brakes have not been bled properly. Liquid will not compress like air, thus the reason pumping the pedal makes the brake pedal come up. If you had all of the air out of the lines then you pedal would not be soft. With your pedal going to the floor either there is air in the lines or fluid is slowly leaking.If it is a small leak on one of your wheel cylinders, it may be hard to detect without pulling the wheels off and looking. Small leaks on your wheel cylinders may never drip off of the car.

1981 Chevrolet... | Answered on Dec 09, 2010

yes, there is a relay, but it's part of the anti-theft system. See diagram below.


1981 Chevrolet... | Answered on Nov 28, 2010

small blisters in paint are normally caused by moisture in the air when painting.if the original was not cut back and then filler/primer was not applied in a heated spraybooth,you will suffer again and again..

1981 Chevrolet... | Answered on Nov 26, 2010

if your a/c system is low on freon it will kick on and off frequently,have it checked for leaks cars don't just run out of freon.if that is fine make sure you are getting enough air in through the front of the car.if the condenser in front of the radiator is not being cooled by incoming air the high side of your a/c system will get to high and the compressor will kick off more frequently to let pressure off the system.

1981 Chevrolet... | Answered on Oct 03, 2010

the idle adjustment needs to be performed warm but the mixture screws at or near the base have springs on then they need turned in all the way and backed out 2 turns then when the vehicle is warm the idle screw is near the linkage also with a spring on it if you have a tach in the car it should its a corvette lol turn the screw in or out until the car idles around 750 to 850 rpm it idles up automatically when cold if your choke is set properlythis should get you where you need to be you may need to adjust mixture screws a little the only proper way to do this is with a vacuum box but you will be in the ballpark anyway with the method i gave you

1981 Chevrolet... | Answered on Sep 21, 2010

The light comes on to to let you know there is low pressure in the system. If the fluid was extremely low when you filled it the brake linings are extremely worn or you have leak in the system. I would check under the car for any signs of moisture around the brake lines. If your brake linings are good and no leaks can be found you will need to replace the master cylinder. Good luck

1981 Chevrolet... | Answered on Sep 13, 2010

you may need to check all your fuses just in case.also check to be sure the horns plugged in.if all this is good replace the horn itself under the hood.. hope this helps!!

1981 Chevrolet... | Answered on Sep 11, 2010

suggest you try the local library we have no diagrams of this system. U may also buy the CD of this manual at the web site below.


1981 Chevrolet... | Answered on Sep 08, 2010

the transmission needs to be rebuild

1981 Chevrolet... | Answered on Sep 07, 2010

You pour the transmission fluid thru the dipstick tube.

1981 Chevrolet... | Answered on Sep 05, 2010

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