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Master
1,596 Answers
- Posted on Mar 28, 2009
Re: 1996 suburban heater core, it is leaking?
PLEASE REMEMBER TO RATE ME THANK YOU RejakWilson
HEATER CORE
Remove or Disconnect
- Engine coolant.
- Instrument panel storage compartment.
- Electrical connectors, as necessary.
- Center floor air distribution duct.
- Hinge pillar trim panels.
- Blower motor cover.
- Blower motor.
- Steering column.
- Roll instrument panel back.
- Coolant recovery reservoir.
- Heater hoses.Screw on interior side of cowl, near the evaporator pipe (if equipped) while holding heater case to the cowl
- Four screws on the engine side of the cowl holding the heater case to the cowl.
- Two nuts on the engine side of the cowl holding the heater case to the cowl.
- Heater case.
- It may be necessary to have an assistant when removing heater case.
- Heater cover.
- Remove seven screws that hold cover to the heater case.
- Heater core from retainer
Install or Connect
- Heater core into retainer.
- Install seven screws that hold heater cover to heater case.
- Heater cover.
- Make sure heater cover is properly sealed.
- Heater case.
- May be necessary to have an assistant when installing heater case.
- Nuts.
- Screws.
Tighten
- Screws on engine side of the cowl to 1.9 N.m (17 lb in) .
- uts to 2.8 N.m (25 lb in) .
- Screw on interior side of the cowl to 11 N.m (97 lb in) .
- Heater hoses.
- Coolant recovery reservoir.
- Roll instrument panel forward.
- Steering column.
- Blower motor.
- Blower motor cover.
- Hinge pillar trim panels.
- Center floor air distribution duct.
- Electrical connectors, as necessary.
- Instrument panel storage compartment.
- Engine coolant.
- Check the system for leaks.
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