How top replace heater core in a 1991 corvette

Rob Sinbad

• 709 Answers
• Posted on Jul 11, 2009

SOURCE: 1995 corvette heater core replacement cost estimate

225.00 bucks including parts labor, you might find a local mechanic will do it for 100.00 buck for labor and you buy the part 49.00 buck. lots of GM mechanic are laid off and economy is slow and you might want to advertise on craig list needing GM mechanic. my best secrets is drive back to the GM garage and ask any mechanic who does the side work and you will be surprise. keep in mind dont ask the shop manager, believed me every dealership has one or more does a side job and good price, no shop rate. hope that help some good luck.

SOURCE: 1991 chevys10 aftermarket a/c heater core needs

Dash needs to come out, or at least pulled back enough to gain acess to the blower box. It sounds like a impossible task but not really too bad. Lots of screws and wires. If you have no knowage of working on cars it may be best to have someone do it.

ZJ Limited

• 17989 Answers
• Posted on May 15, 2010

SOURCE: heater core 1991 corsica needs to be replaced

1991 VEHICLES

1. Disconnect the negative battery cable.
2. Drain the cooling system into a suitable container.
3. Properly disable the SIR system, as outlined earlier in this section.
4. Remove the instrument panel as outlined in this section.
5. Remove the screws and floor outlet, turning clockwise and to the right to release from the rear floor air outlet.
6. Raise the vehicle and support it safely.
7. Detach the heater hoses from the heater core.
8. Disconnect the drain tube elbow from the heater core cover.
9. Carefully lower the vehicle.
10. Unfasten the retaining screws, then remove the heater core cover.
11. Remove the core screws, clamps and heater core from the vehicle.
    

1. Reposition the heater core and install the straps and screws.
2. Install the heater core cover and attaching screws.
3. Install the floor outlet and retaining screws.
4. Install the instrument panel.
5. Raise the vehicle and support it safely.
6. Connect the heater hoses to the heater core.
7. Carefully lower the vehicle.
8. Fill the cooling system with the proper type and amount of coolant.
9. Enable the SIR system, as outlined earlier in this section.
10. Connect the negative battery cable, then start the engine and check for coolant leaks. Check the coolant level, and add if necessary.

Greg Bernett

• 2993 Answers
• Posted on May 28, 2010

SOURCE: How do I remove the heater core in a 1965

Here ya go! Fairly simple task!

Removal and Installation

1. Drain the radiator, remove the radiator expansion-tank retaining straps, and move it from the work area.
   
2. Remove the battery.
   
3. Remove the water hoses from the heater assembly.
   
4. Remove the seven stud nuts attaching the blower and an inlet assembly to the firewall. Remove the assembly.
   
5. Remove the glove compartment and panels on both sides of the console.
   
6. As a precaution, place a plastic sheet or other waterproof covering over the passenger-side carpet.
   
7. Remove the two control cables from the instrument panel.
   
8. Disconnect the wire leads from the lower switch and the resistor.
   
9. Carefully remove the heater assembly from under the dashboard.
   
10. Remove the four core cover retaining screws.
    
11. Loosen the four screws holding the core retaining yokes and the core to the retainer cover.
    
12. Remove the rear cover and core.
    
13. To install, reverse this procedure.
    

Ron

• 249 Answers
• Posted on Jul 30, 2010

SOURCE: i have a 1991 Z28

Here ya go.

http://www.thirdgen.org/heatercore