How to replace a heater core in a 1994 chevy 1500

2005 Chevy Impala 3.8Liter - YouTube

? 3:51
https://www.youtube.com/watch?v=pq2DoQq6q0A
Apr 18, 2014 - Uploaded by DerrickTheMechanic
How to change them out.And what they ... 2005 Chevy Impala3.8Liter ... Heater core information, coolant leak, bypass,replacement, hoses, etc.

How To Change A Heater Core - Part 2 of 2 - YouTube

? 3:12
https://www.youtube.com/watch?v=OFxQJXWszs8
Jun 19, 2013 - Uploaded by klowny1969
How To Change A Heater Core - Part 2 of 2. klowny1969 ...Impala . Caprice . Nova . Biscayne . Corvette . Denali . Landcruiser . ... Chevrolet 1500 * 2500 Truck * Heater Core Replacement * Gasoline * 1997 - Duration: 11:59. images for 2005 Chevrolet Chevrolet Impala LS ...

I have a Late 1999 Chevy Silverado C1500 Z71. I had one of the heater hose nozzle snap off this past weekend. I looks like the heater core hase some kind connection fitting. And I had the same situation!

have you checked the air duct bafle plates are operating to divert the airflow?

If i remember correctly you will have to remove the dashboard to get to the a/c box on these trucks. Then you need to disconnect the heater hoses and remove the a/c box. Then take the A/C box apart and replace the heater core.

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.

if your truck is not overheating and shows no other signs of a cooling system problem, i would suspect a clogged heater core. you can try to flush it out by removing both heater hoses from the heater core, and with a garden hose, flush the core in both directions

air recir actuator motor shorted you can reach between blower motor and heater case and unplug a pain to replace

the heater core if i remember correctly comes out through the underside of the hood

IT could be who ever did it did not even change it they might of just patch back the same one, yet I might be wrong but I see it happen already.