Question about 1998 Chevrolet K1500

1 Answer

Heater-core? how to replace my heater-core? They want over $500.00 for labor. some have access panels ,some don't. In my truck under the heater box,there are 7 screws on the bottom. It looks like the same as an oil-pan cover. There trying to tell me it's not an access panel, so, What are they there for? this is only a work truck. Do you know where it is mounted in-side the box? Can I cut the box out and seal it back together? thanks john

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 5,158 Answers

Remove the screws and see what it is.... some vehicles are horrid to change the heater core to the point where you have to remove the dash board to do it.
as far as cutting it open and replacing it that way... well it is your truck so if you choose to repair it that way then that is the way you do it.
To locate roughly where the heater core is... open the hood and locate the two heater hoses going to it on the firewall.


Posted on Sep 20, 2008

1 Suggested Answer

  • 2 Answers

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

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

How to replace a heater core in a 2009 dodge journey

It will require several hours of labor just to get into the heater core. Its not so much the heater core replacement, its taking most if not all of the panels underneath the passenger side underneath the dashboard. Dpending on your car model, it may also require you to remove the glove box just to have access to the heater core.

In rare cases you have to remove the whole top dash board but most cars in general only require to remove panels underneath the dashboard on the passenger side. It's tricky to remove the heater core because it is well hidden behind many panels, a whole lot of screws to remove. Then you have to remove or cut the heater hoses in front of the engine compartment as those hoses are attached to the heater core.

I just replace the heater core in my old buick and it took some effort to undo all those panels and hoses and screws but i finally got it all done and heater works perfect. That repair at a automovtive repair shop would of cost me 350 to 400 dollars. I just spent 35.00 bucks for the heater core and another 12.00 bucks for new heater hoses and that was it, that and the intense labor involved to remove the old heater core. But i saved a huge bundle by doing it by my self, good luck.

Feb 22, 2015 | Dodge Cars & Trucks

2 Answers


there should be an access panel under the glove box for this year model. if the access panel is not there then you have to remove the dash to get the heater core out. GM made the switch with the access panel to no panel somewhere close to this time depending on the build date of the truck.

Aug 07, 2011 | 1998 Chevrolet K1500

1 Answer

Looking for heater core replacement instructions for 1997 Ford F250 Heavy Duty, 5.8L V-8 w/ A/C. Please tell me I don't have to remove the dash! Thanks!

Drain your coolant low enough that it wont make a mess when you remove the the hose from the heater core under the hood, then remove the glove box door, looking at the heater box thru the glove box door opening remove seven (7) screws on the heater box, remove the panel and then remove the heater core, opposite to reinstall.

Mar 26, 2011 | Ford F-250 Cars & Trucks

1 Answer

Heater don`t blow hot air

most likely cause would be your heater core instructions below!

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 12, 2011 | 2000 Dodge Stratus

1 Answer

Replace heater core is it easy or not any info

Dennis, replacing a heater core is never easy on a car unless you can access it from under the hood. More than likely you will have to remove it from inside the vehicle under the dash on the passenger side. Removing it and installing it is the easy part. Getting to it is the hard part. It is just a matter of removing enough dash parts to gain access to the core. That is the hard part. This is why this is a very expensive repair as the majority of the cost is labor. The core itself it relatively inexpensive. Look under the hood and follow the heater hoses to the firewall. You will then know the location of the core and know if it can be removed from under the hood. If you have to remove it from inside the vehicle just slowly start taking parts of the dash off and go very slow. Take photos is necessary in order to remember how to put it all back together. Some dash panels will snap off and some will be held in place with a screw or clip. Be very careful and do not break and parts. You can do this if you take you time.

May 17, 2010 | 1994 Plymouth Acclaim

2 Answers

I have a 1996 grand prix se I believe that my heater core is leaking how hard is it to change it in this vehicle

It's a big job. The heater core is accessed from inside the car under the dash. If your car has a center console, it must be removed, along with the glove box and the under dash covers. Then you'll see the actual heater box. Removing the box will show you the core, but you'll need to go under the hood to disconnect the heater hoses before you can remove it. Obviously, you need to drain the cooling system first.
Also note, when you replace the core and put the heater box back in, the box has to be sealed for proper operation. In some cases, either RTV sealant can be used, or foam tape.

Jan 21, 2010 | 1996 Pontiac Grand Prix

1 Answer

Steps for replacing the heater core in a 1997 pontiac sunfire

This is a fairly easy fix.The steps are as follows:
  1. Disconnect the heater hoses under the hood.
  2. Go to passenger side under the dash remove the lower panel from the dash to access the heater box.
  3. Unplug any and all connections on the lower half of the heater box and remove the lower half of the box should be about six screws you should see the heater core and the evaporator core.
  4. Heater core skinnier of the two should have one or two straps holding it in remove the straps and remove the core and replace.

Nov 15, 2009 | 1997 Pontiac Sunfire

1 Answer

Water lines by-passed, think it needs new core, how do you replace core?

1. drain cooling system
2. disconnect heater hoses from engine side of firewall from the heater core,
3. remove nessicary dash panels and covers to access heater box.
4. unbolr heater core and remove.
5. reverse to install.
6. fill cooling system, making sure to purge the air from the cooling system.

Nov 04, 2009 | 1997 Pontiac Sunfire

1 Answer

Have to replace the heater core on a 1997 Pot.

This is a fairly easy fix. Disconnect the heater hoses under the hood. Go to passenger side under the dash remove the lower panel from the dash to access the heater box. Unplug any and all connections on the lower half of the heater box and remove the lower half of the box should be about six screws you should see the heater core and the evaporator core. Heater core skinnier of the two should have one or two straps holding it in remove the straps and remove the core and replace.

Oct 05, 2009 | 1997 Pontiac Sunfire

3 Answers

Remove and replace heater core 86 f150

This is not a terribly complicated job -- it's mostly bolts, hoses and clamps. It can be messy depending on how much coolant there is in it.

Access to it may be the biggest headache depending on whether it's under the hood or under the dashboard.

Doing this job for the first time will probably take about 4 hours.

Apr 28, 2009 | 1986 Ford F150 SuperCab

Not finding what you are looking for?
1998 Chevrolet K1500 Logo

76 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts


Level 3 Expert

74115 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22082 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7188 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides