Question about 2001 Pontiac Grand Am SE

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Is it possible to replace the heater core on a 2001 chevy tahoe...by myself...with limited repair knowledge? Have a willing husband but not sure it's possible!? Help!

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  • Pam Peck Oct 08, 2010

    Thanks for all your advice. I'm still on the fence about trying the repair myself but the lure of saving hundreds of dollars is getting bigger by the second! Now all I have to do is have my husband "study up" on the Tahoe manual! ;-)

    Thanks again!
    Pam

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  • Pontiac Master
  • 3,640 Answers

Its a big job, you will have to take the dash out. if you try this job, you can buy a haynes manual for your vehicle at any auto parts store. the book is based on a complete teardown of vehicle. have a good day!! for about 25.00,

Posted on Oct 08, 2010

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Posted on Jan 02, 2017

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I bought a 99 tahoe four door 5.7 350. No heat. Previous owner bypassed heater core. Need to see how heater hoses attach.


Have you replaced the heater core? If not, most likely the reason the previous owner bypassed the heater core was because it leaked. I will be happy to send you photos of how the hoses attach but I will need your email address.

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1 Answer

2001 CHEVY TAHO REPLACE WATERPUMP / NO HEAT


Did the heat work before? I need you to be more specific but you can try removing the hoses to the heater core and flushing it out.

Oct 19, 2013 | Cars & Trucks

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How do you change the heater core in a 2001 chevy 1500


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.

Jan 09, 2011 | 2001 Chevrolet Silverado 2500

1 Answer

Where is the heater core in my 2002 chevy Tahoe and do I need to remove the entire dashboard to change it out?


To find the heater core, follow the inlet and outlet lines from your cooling system.

Yes you will be required to remove the dash to replace it.

Dec 31, 2009 | 2002 Chevrolet Tahoe

1 Answer

2001 tahoe front heater not working, rear heater blows warm air


Notorious for plugged heater cores. Also updated plastic restriction couplers mounted at heater core available from dealer. Try back flushing heater core. Run engine till its at operating temperature then carefully hold the inlet and outlet hose breifly with heater fan on high if hoses are nearly the same temp then flow is good , if not then core is plugged.

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6 Answers

2001 tahoe front heater not working, rear heater blows warm air


I have the same problem with my 2001 Tahoe. The front blower is working, its blowing strong, but its cold air even with the temp setting as high as it can get. The rear blows hot air. The engine temp guage is at about 210ish which is close to being normal (220). I just replaced the thermostate a few months ago, I don't know if its bad again, or it I deluted the antifreeze too much and it frooze the heater core, or if the heater core just went bad. Any one know what the cause could be?

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1 Answer

Leaking Heater hose or Core


REMOVAL & INSTALLATION
Disconnect the negative battery cable.
Position a drain pan under the radiator, open the drain **** and drain the cooling system to a level below the heater core.
NOTE: Plug the heater core tubes to avoid spilling coolant in the passenger compartment during removal.


Disconnect the heater-to-engine coolant hoses from the core tubes on the fire wall, in the engine compartment.
NOTE: On some early model vehicles, the cabin light mounted under the dash may interfere with cover removal. If necessary, loosen the retaining bolt and reposition the light housing with the wiring attached.


From the passenger compartment (under the dash) remove the heater core rear case cover-to-cowl screws, then remove the cover from the vehicle.
NOTE: On a few of the early model vehicles covered by this manual, some of the heater core cover screws may be partially/fully covered by the dashboard. Be sure that all are removed before attempting to remove the cover. If necessary, unbolt and reposition all/part of the dashboard for better access.


Remove the straps or brackets from each end of the heater core.
Carefully remove the heater core from the cowl and case.
Installation is the reveres of removal. Run the engine at normal operating temperatures and check for leaks

Dec 01, 2008 | 1993 Chevrolet S-10

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