Question about Chevrolet Tahoe

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I am replacing the heater core on my 99' tahoe, should the dash cover come out with the tube frame or seperate? If seperate, do I cut the rivets holding the side dash trim to the steel frame?

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  • jhutchi604 Oct 19, 2008

    It's alot more involved than that, the whole dash assembly has to come out to get to the hvac housing which has to be removed completely from the vehicle in order to exchange the heater core.

  • jhutchi604 Oct 19, 2008

    need more help than that

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Sir,

I think for sure that you should get the service manual first ...this will prepare you so as to know what tools are needed to complete this task...The internet is a great place to start.... the helms manuals are best...

call 1-800-782-4356

thanks
good luck

Posted on Oct 19, 2008

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Yes the dash cover comes alone you can buy it from
http://www.google.com/products?q=99%27+tahoe+dash+cover&btnG=Search+Products&show=dd

Posted on Oct 19, 2008

  • rush2aaman
    rush2aaman Oct 19, 2008

    Bad heater core or loose connection at heater core. Hot water is escaping turning into steam. Windows are steaming up and can't be cleared. Smells like cake. Leakage of water from heater core has allowed air in (causing gurgling sound). Check your coolant reservoir. It's probably low too. Your heater core needs to be checked for 1) a loose hose connection at heater core or 2)leakage throuh the heater core itself. The heater core is under the passenger side dash within a plastic cover. It looks like a very small radiator. If it is leaking it will probably need to be replaced.


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To replace the heater remove the dash plate by removing the radio and heater/ac controls and heater core should be right behind them...

Posted on Oct 19, 2008

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3 Answers

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.

Dec 21, 2014 | 1999 Chevrolet Tahoe

3 Answers

How do you replace a heater core on a 95 impala ss


How to Replace the Heater Corein a Chevy Impala

Replacing your Chevy Impala'sheater core is no easy task. There are several parts you must carefully removeor reposition to disconnect the core from the heating, ventilating and airconditioning (HVAC) module. This module and the core are located behind thecar's floor ducts.

1. Jack up the car and drain the Impala's cooling system.Loosen the water pump's drain bolt and let the coolant drain into a pan. Closethe drain bolt and lower the car afterward. 2. Remove the heater outlet and inlet hose from theheater core (reposition the hose clamps to do so). Take off the right consoleextension panel, body control module and left side extension panel on the frontfloor console 3. Disconnect the leftinstrument center support bracket (pull away the carpet at its bottom to reachthe nuts). Remove the accelerator control pedal from its position in the frontof the dash. 4. Disengage the center floorducts by raising the outlet duct while pushing the ducts down. Rotate theoutlet duct forward in the car and pull down to remove it from the HVAC module. 5. Use a small chisel to removeall the heat stakes from the heater core cover. Loosen the nut behind the fuelline bracket. Remove the dash panel's stud at the heater hoses. 6. Pull the core's cover downenough to reach the HVAC module's locating pins. Slide the cover rearward untilthe drain tube clears the dash front. Remove the cover by sliding it down,rearward, and to the right. You can now remove the core.
Installing the New Core
1. Install the new core into the HVAC module,attaching a new seal onto the drain tube. Attach the core cover from the rightside, sliding it up and forward into position. 2. Align the draintube with the front dash hole and the core cover holes with the HVAC locatingpins. Install the core cover screws, cutting and folding back the soundinsulator near the center screw to ease that screw's installation. 3. Reinstall the dash panel stud at theheater hoses, tightening the nut behind the fuel line bracket. Align the centerfloor duct with the HVAC and push it up while rotating rearward to install it.Put the floor ducts and outlet duct back into the Chevy Impala. 4. Attach theaccelerator control pedal. Pull the carpet back and position the left centersupport bracket, then tighten the bracket nuts. 5. Reconnect theleft side front floor console extension panel and the body control module tothe car. 6. Put on the outlethose and inlet hoses to the core, securing them with their clamps. Refill thecooling system with the proper mixture of water and coolant.
Read more: How to Replace the Heater Core in a Chevy Impala ' eHow.com

Nov 10, 2010 | 1996 Chevrolet Impala SS

1 Answer

How do you bypass the heater core on a 1998 Ford Bronco 2?


Disconnect both hoses from the core and one of them also from the engine. Hook the other one back to where you took one off, making a loop. The picture below is not a bronco, but gives you the idea.
By the way, your core is easy to replace. It almost pops right out from under the dash. I ahve included picture below.

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Remove and replace heater core procedures:

  1. Disconnect the heater hoses from the heater core tubes and plug hoses.
  2. In the passenger compartment, remove the five screws attaching the heater core access cover to the plenum assembly and remove the access cover.
  3. Pull the heater core rearward and down, removing it from the plenum assembly.

To install:

  1. Position the heater core and seal in the plenum assembly.
  2. Install the heater core access cover to the plenum assembly and secure with five screws.
  3. Install the heater hoses to the heater core tubes at the dash panel in the engine compartment. Do not over-tighten hose clamps.
  4. Check the coolant level and add coolant as required. Connect the negative battery cable.
  5. Start the engine and check the system for coolant leaks.

Nov 09, 2010 | 1988 Ford Bronco

1 Answer

Heater wont warm up in a 2000 chev tahoe


Check that the heater core's two tubes that enter the firewall are getting hot. If they are, then you are having a blend door problem which will require disassembling the dashboard instruments to get at the vacuum motors that control the blend doors.

If the heater core is not getting hot at both tubes, then the following procedure outlines how to change the heater core out:

Removal & Installation






Heater core removal
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To Remove:



  1. Remove the HVAC assembly.
  2. Remove the heater core cover screws.
  3. Remove the heater core cover from the HVAC assembly.
  4. Remove the heater core gasket from the core.
  5. Remove the heater core from the HVAC module assembly.


To Install:



  1. Install the heater core to the HVAC module assembly.
  2. Install the heater core cowl gasket to the HVAC module assembly.
  3. Install the heater core cover and screws to the HVAC module assembly.
  4. Install the HVAC module assembly to the vehicle.


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Oct 29, 2010 | 2000 Chevrolet Tahoe

1 Answer

Is the heater core on a 1981 bronco in the engine compartment or the cab compartment


in the cab, but procedures are different depending on whether or not you have A/C. See below

1980-81 Comfort Vent Heaters, Without Air Conditioning
  1. Disconnect the heater hoses from the heater core tubes and plug the hoses with suitable 5 / 8 inch; (16mm) plugs.
  2. Remove the glove compartment liner.
  3. Remove two (2) spring clips attaching the heater core cover to the plenum along the top edge of the heater core cover.
  4. Remove eight (8) screws attaching the heater core cover to the plenum and remove the cover.
  5. Remove the heater core from the plenum taking care not to spill coolant from the core.
To install:
  1. Install the heater core in the plenum.
  2. Install the heater core cover (eight (8) screws and two (2) spring clips along the top edge of the cover).
  3. Install the glove compartment liner.
  4. Connect the heater hoses to the heater core. Tighten the hose clamps.
  5. Add coolant to raise the coolant level to specification.
  6. Check the system for proper operation and for coolant leaks.

1980-81 Standard & High Output Heaters, Without Air Conditioning
  1. Disconnect the temperature cable from the temperature blend door and the mounting bracket on top of the heater case.
  2. Disconnect the wires from the blower motor resistor and the blower motor.
  3. Disconnect the heater hoses from the heater core and plug the hoses with suitable 5 / 8 inch; (16mm) plugs.
  4. Working under the instrument panel, remove two (2) nuts retaining the left end of the heater case and the right end of the plenum to the dash panel.
  5. In the engine compartment, remove one (1) screw attaching the top center of the heater case to the dash panel.
  6. Remove two (2) screws attaching the right end of the heater case to the dash panel, and remove the heater case from the vehicle.
  7. Remove nine (9) screws and one (1) bolt and nut attaching the heater housing plate to the heater case, and remove the heater housing plate.
  8. Remove three (3) screws attaching the heater core frame to the heater case and remove the frame.
  9. Remove the heater core and seal from the heater case.

To install:
  1. Position the heater core and seal in the heater case.
  2. Install the heater core frame (3 screws).
  3. Position the heater housing plate on the heater case and install the nine (9) screws and one (1) bolt and nut.
  4. Position the heater case to the dash panel and install the three (3) attaching screws.
  5. Working in the passenger compartment, install two (2) nuts to retain the heater case and plenum right end to the dash panel.
  6. Connect the heater hoses to the heater core. Tighten the hose clamps.
  7. Connect the wires to the blower motor resistor assembly.
  8. Connect the blower motor wires.
  9. Position (slide) the self-adjusting clip on the temperature cable to a position approximately one 1 inch; (25.4mm) from the cable end loop.
  10. Snap the temperature cable on the cable mounting bracket of the heater case. Then, position the self-adjusting clip on the door crank arm.
  11. Adjust the temperature cable.
  12. Check the system for proper operation.

Oct 05, 2010 | 1981 Ford Bronco

1 Answer

Heater core


HI. This is not an easy job but, im sure you will be able to accomplish this with a little guidance. I have put together a guide for you to follow. Its a step by step guide and, it will help you with this replacement of your heater core.


REMOVING THE OLD CORE--

#
Step 1

Jack up the car and drain the Impala's cooling system. Loosen the water pump's drain bolt and let the coolant drain into a pan. Close the drain bolt and lower the car afterward.
#
Step 2

Remove the heater outlet and inlet hose from the heater core (reposition the hose clamps to do so). Take off the right console extension panel, body control module and left side extension panel on the front floor console
#
Step 3

Disconnect the left instrument center support bracket (pull away the carpet at its bottom to reach the nuts). Remove the accelerator control pedal from its position in the front of the dash.
#
Step 4

Disengage the center floor ducts by raising the outlet duct while pushing the ducts down. Rotate the outlet duct forward in the car and pull down to remove it from the HVAC module.
#
Step 5

Use a small chisel to remove all the heat stakes from the heater core cover. Loosen the nut behind the fuel line bracket. Remove the dash panel's stud at the heater hoses.
#
Step 6

Pull the core's cover down enough to reach the HVAC module's locating pins. Slide the cover rearward until the drain tube clears the dash front. Remove the cover by sliding it down, rearward, and to the right. You can now remove the core.
Installing the New Core


INSTALLING THE NEW CORE---

#
Step 1

Install the new core into the HVAC module, attaching a new seal onto the drain tube. Attach the core cover from the right side, sliding it up and forward into position.
#
Step 2

Align the drain tube with the front dash hole and the core cover holes with the HVAC locating pins. Install the core cover screws, cutting and folding back the sound insulator near the center screw to ease that screw's installation.
#
Step 3

Reinstall the dash panel stud at the heater hoses, tightening the nut behind the fuel line bracket. Align the center floor duct with the HVAC and push it up while rotating rearward to install it. Put the floor ducts and outlet duct back into the Chevy Impala.
#
Step 4

Attach the accelerator control pedal. Pull the carpet back and position the left center support bracket, then tighten the bracket nuts.
#
Step 5

Reconnect the left side front floor console extension panel and the body control module to the car.
#
Step 6

Put on the outlet hose and inlet hoses to the core, securing them with their clamps. Refill the cooling system with the proper mixture of water and coolant.


Inspect the foam seal for the core on the lower HVAC case. Replace it with adhesive black foam tape if damaged.

Please rate and have a good day:)

May 06, 2009 | 2006 Chevrolet Impala

1 Answer

How do you remove the console in a 95 grand am se


It is very hard!! You actually are supposed to remove the whole dash!! I took a shortcut and just took the screws out of the plastic box under the dash where the heater core is,behind the console, next to the floorboard, and cut it across the back on the bottom. You then have to get under the car to remove this screw that is on the firewall between the 2 heater core hoses..then remove the hoses from the heater core on the firewall. Then you can get back inside the vehicle and it will pull out. When you replace, the cover that you cut, just put the screws back in and put some tape across where you cut the cover off. It saved me from having to take the whole dash out, and having to spend $300 to have a mechanic replace my heater core!!

Apr 27, 2009 | 1995 Pontiac Grand Am

1 Answer

Heater core replacement


You do not have to do anything with the air conditioning, its all inside car under right side of dash. 1. go under hood and unhook heater hoses and bracket( if equiped) from core tubes. 2. go under dash right side remove 13mm bolt far right under dash thats so you can pull dash out a little ways to get cover off heater where heater core is.3. 1/4 in. socket set and 1/4 in. socket take screws out holding cover on look close there is one hidden top far right can't remember how maney 5 or 6 i think, screws all out use a little finess and remove cover and there will be your heater core. Good luck.

Apr 13, 2009 | 1995 GMC Jimmy

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

1 Answer

Heater core broken


All of it don't try this at home unless you are experienced.
  1. Disable the Supplemental Inflatable Restraint (SIR) system, refer to Disabling the Supplemental Inflatable Restraint (SIR) System. See: Body and Frame\Interior Moulding / Trim\Air Bag(s) Arming and Disarming\Service and Repair
  2. Negative battery cable.
  3. Drain cooling system.
  4. Raise vehicle.
  5. Drain tube from heater case.
  6. Heater hoses from heater core.
  7. Lower vehicle.
  8. Right and left sound insulators.
  9. Steering column opening filler.
  10. Floor air outlet duct.
  11. Heater core cover.
  12. Heater core mounting clamps and remove heater core.

Nov 19, 2008 | 1995 Chevrolet Beretta

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