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How do i replace my heater core on my 2002 chevy 2500 hd

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5 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

SOURCE: Heater core

HEATER CORE REPLACEMENT

Posted on Jun 21, 2008

Shouldibuyit
  • 44 Answers

SOURCE: replace heater core 1994 chevy g20 conversion van

Here a are the instuctions to remove it. I did not know if you have A/C or not so I included both for you.

REMOVAL & INSTALLATION
Without Air Conditioning
ALL MODELS
See Figure 1

  1. Disconnect the negative battery cable.
  2. Remove the coolant recovery bottle.
  3. Place a pan under the van and disconnect the heater intake and outlet hoses. Quickly remove and plug the hoses and support them in an upright position. Drain the coolant from the heater core into the pan.
CAUTION When draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantity. Always drain coolant into a sealable container. Coolant should be reused unless it is contaminated or is several years old.
  1. Remove the heater distributor duct-to-case attaching screws and the duct-to-engine cover screw. Remove the duct.
  2. Remove the engine cover.
  3. Remove all the instrument panel attaching screws.
  4. Carefully lower the steering column. Raise and support the right side of the instrument panel. Refer to for further details.
  5. Remove the defroster duct-to-case attaching screws and the two screws attaching the distributor to the heater case.
  6. Disconnect the temperature door cable. Carefully fold the cable back and out of the way.
  7. Remove the three nuts from the engine compartment side of the distributor case and the screw from the passenger compartment side.
  8. Remove the heater case and core assembly.
  9. Remove the core retaining straps and remove the core.
To install:
  1. Install the core.
  2. Install the core retaining straps.
  3. Install the heater case and core assembly.
  4. Fasten the three nuts on the engine compartment side of the distributor case and the screw on the passenger compartment side.
  5. Connect the temperature door cable.
  6. Install the defroster duct-to-case attaching screws and the two screws attaching the distributor to the heater case.
  7. Install the steering column.
  8. Fasten all the instrument panel attaching screws.
  9. Install the engine cover.
  10. Install the duct. Install the heater distributor duct-to-case attaching screws and the duct-to-engine cover screw.
  11. Connect the heater intake and outlet hoses.
  12. Fill the cooling system.
  13. Install the coolant recovery bottle.
  14. Connect the negative battery cable.
1990-95 MODELS With A/C

  1. Disconnect the battery ground cable.
  2. Remove the engine cover.
  3. Remove the steering column-to-instrument panel bolts. Lower the column carefully.
  4. Remove the upper and lower instrument panel attaching screws. Remove the radio support bracket screw.
  5. Raise and support the right side of the instrument panel.
  6. Remove the lower right instrument panel bracket.
  7. Remove the vacuum actuator from the kick panel.
  8. Disconnect the temperature cable and vacuum hoses at the case. Remove the heater distributor duct from over the engine hump.
  9. Remove the two defroster duct-to-firewall attaching screws below the windshield.
  10. Under the hood, disconnect and plug the heater hoses at the firewall.
  11. Remove the three nuts and one screw (inside) holding the heater case to the firewall.
  12. Remove the case from the van. Remove the gasket for access to the screws holding the case together. Remove the temperature cable support bracket. Remove the screws and separate the case. Remove the heater core.
To install:
  1. Install the heater core.
  2. Assemble the case and fasten the screws.
  3. Install the temperature cable support bracket.
  4. Position the gasket, then install the case in the van.
  5. Fasten the three nuts and one screw (inside) holding the heater case to the firewall.
  6. Connect and plug the heater hoses at the firewall.
  7. Fasten the two defroster duct-to-firewall attaching screws below the windshield.
  8. Install the heater distributor duct.
  9. Connect the temperature cable and vacuum hoses at the case.
  10. Install the vacuum actuator at the kick panel.
  11. Install the lower right instrument panel bracket.
  12. Fasten the radio support bracket screw.
  13. Fasten the upper and lower instrument panel attaching screws.
  14. Fasten the steering column-to-instrument panel bolts.
  15. Install the engine cover.
  16. Connect the battery ground cable.
  17. Refill the cooling system as necessary.

Posted on Nov 28, 2008

boscia
  • 163 Answers

SOURCE: replace a heater core in 2000 chevy blazer

it is located under the dashboard against the firewall of the passenger seat. i recomend buying a repair manual from your local auto parts store before attempting as it requires draining, flushing, refilling and bleeding the cooling system as well as removing many other componets like the entire dashboard and thermostat

Posted on Dec 01, 2008

  • 2309 Answers

SOURCE: Drain Engine Coolant in 2005 Chevy Silverado 2500 HD

there is a petcock at the bottom of the rad drain ti from there and use a antifreeze tester to check protection temp

Posted on Nov 18, 2009

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What's your problem?back up lights on a 2002 chevy silverado 2500 HD doesn't work, i have checked the bulbs and fuses, they are good ,,, how do i fix them?


disconect the reverse light switch wires from the gearbox & bridge. If the lights come on it is a faulty switch.

Oct 12, 2012 | Cars & Trucks

1 Answer

How do I change the heater coil in a 2003 Chevy Silverado 2500 HD


Ensure the engine and water is cold before startignthis project to eprevent scalding. This is not an easy fix as it takes a lot of patience. First step is to trace the hot water lines from the radiator and engine back to the firewall (wall below the windshield). The two silver (aluminum) pipes are the ends of the heater coil (core). I would recommend going to the auto parts store and puchase the replacement part first so you know what you are working with and have an idea of the sive of the entire element. Second is to locate the heater core black box which should be located in the area under the dash nearest the passeger side. There are several screws that must be removed to separate the black box to expose the heating element. Sometimes is it hard to get the box cover out and due to it being made of hard plastic, it is easy to break. Once you get to the heater core, the are a couple of holders that keep the core tight inside the box. remove them, disconnect the hoses (inside the engine compartment) and work the heater core out. when installation the new heater core, be very careful as to not damage the pipes that connect to the hose. Good luck

Feb 06, 2011 | 2003 Chevrolet Silverado 2500HD

1 Answer

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

The cab of my 2000 chevy suburban 2500 fogs up. I did recharge the ac and the ac compressor doesn't want to kick in. I've been told it could be a heater core but thats very rare. Is there a switch or...


You have a leak in the heater core. It will have to be replaced. It's not all that rare these days, with the poor quality factory heater cores. The replacement cores are much better.

Dec 19, 2010 | 2000 Chevrolet Suburban

1 Answer

How do i replace the heater core on a 2001 chevy silverado 2500


pull the dash off theres the heater core on passenger side theres a inlet and outlet hose pull both off remove mountin bolts install new one reassemble dash

Sep 13, 2010 | 2001 Chevrolet Silverado 2500

1 Answer

How to replace a heater core in a 2002 chevy astro van


Heater Core Removal & Installation To Remove:
  1. Drain the engine coolant.
  2. Release and reposition the outlet heater hose clamp at the heater core.
  3. Remove the outlet heater hose from the heater core.
  4. Release and reposition the inlet heater hose clamp at the heater core.
  5. Remove the inlet heater hose from the heater core.
  6. Remove the screws that retain the cover to the heater case assembly.
  7. Remove the straps that retain the heater core to the heater case assembly.
  8. Remove the heater core from the vehicle.
To Install:
  1. Installation is the reverse of removal.
  2. Refill the cooling system.
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Aug 12, 2010 | 2002 Chevrolet Astro

1 Answer

I need to replace my heater core on a 2001 chevy 2500 hd. I can not figure out how to replace it and do I need to take the whole dash off?


Is it leaking or just plugged up? visit honestautoestimates.com for free complete information about any repair including how much it should cost.

Mar 01, 2010 | 2001 Chevrolet Silverado 2500HD

1 Answer

I have a 1993 Chevy Silverado 2500 with a 5.7 liter 350. How do I bypass the heater core by connecting two hoses? Will the only negative impact be that I will not have a heater?


You can remove both hoses from the core and put them together using a short length of copper plumbing pipe. No problem to engine from this it flows through just like its going to core( engine can't tell the difference)

Jun 18, 2009 | 1994 Chevrolet Silverado 2500

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