1988 Chevy Blazer Heater Core Replacement

Tyrone, Check the attached links,instruction and guides, the last link has some very good info. and pics. on S10 heater core replacement. Good luck.
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Heater core replacement 2000 S10 4 3L slideshow picture
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Heater core replacement procedure 99 S10

how long does the heater core take for a 98 chevy blazer

For heater core replacing procedure.I suggest you to go through this related help links.Its all complete step by step procedure :----How to replace heater core for All car models?

Click the link below:---

http://technoanswers.blogspot.com/2011/11/how-to-replace-heater-core-for-all-car.html

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How to Flush Heater Core?

http://schematicsdiagram.blogspot.com/2011/12/how-to-flush-heater-core.html

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How to Remove Heater Core ?

http://howtobyme.blogspot.com/2011/12/how-to-remove-heater-core-on-2008-honda.html
Heater Core Replacement?

http://howtobyme.blogspot.com/2011/12/honda-heater-core-replacement.html

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To replace heater core? http://technoanswers.blogspot.in/2012/02/how-to-replace-heater-core-on.html------ How to replace heater core? http://technoanswers.blogspot.in/2012/02/how-to-replace-heater-core-on_10.html
----------This will help.Thanks.

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.

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.

Inspect/Replace 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.

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.

Hi,

Please check this webste:

http://www.youtube.com/watch?v=687B2pspF2w

Please accept if this helped you.

Thanks

http://www.fixya.com/cars/t3722263-change_heater_core_in_2001_chevy_blazer

There isn't one. There is always coolant flowing through the heater core. The blend door controls all of the heating and airconditioning.
Make sure the heater core is free flowing, most of the time the core gets plugged with rust and slug and does not allow coolant to flow through. You can take the hoses off the core and try and back flush it with a gardan hose.

No Problems to Expect. It is REALLY Straight Forward!

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