Question about 1998 GMC Safari

1 Answer

Bad heater core - 1998 GMC Safari

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

HOW TO REPLACE THE HEATER CORE ON A 1998 GMC SAFARI

Posted on Dec 26, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
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.
Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Heater core


Sounds like a bad heater core. You will get steam/vapor out of vents from this. If you are referring to the over flow tube being the evaporator drain tube at the firewall its because the heater core shares the same case with the A/C and its filling up with anti-freeze.

Feb 24, 2013 | 1992 Pontiac Grand Am

1 Answer

1999 ford Expedition heater core removal


If the hose is leaking at heater hose,maybe heater core is bad,here's a repair guide to the heater core and hose.

Dec 22, 2012 | 1999 Ford Expedition

4 Answers

Heater core leaking through floor vents.


Bad heater core you will need to replace it. About a 2 hour job, very easy to do:


Remove the HVAC module assembly. Refer to HVAC Module Assembly Replacement.
Remove the HVAC filter cover.
Remove the heater core/evaporator tube seals from the module.
Remove the heater core cover screws (1).
Remove the heater core retaining screws (1).
Remove the heater core retaining straps.
Remove the heater core.
Remove the rubber seals from the inlet/outlet pipes of the heater core.

Installation Procedure

Install rubber seals to the outlet/inlet pipes of the heater core.
Install the heater core to the module.
Install the heater core retaining straps.



Install the heater core retaining screws (1).
Install the heater core cover.



Install the heater core cover screws (1).



Install the heater core/evaporator tube seal from the module.
Install the HVAC filter cover.
Install the HVAC module assembly. Refer to HVAC Module Assembly Replacement.

May 19, 2011 | Cadillac DeVille Cars & Trucks

1 Answer

The heater blows cool air not warm air


First check and make sure that your coolant(antifreeze) level is full, the hot coolant runs through the heater core and than air is blown over the heater core heating the air for the heater. if the coolant is full you than need to check the thermostat and make sure it is functioning properly. finally if both of those are not the problem it is possible that your heater core is bad, however if the heater core is bad you will notice coolant leaking onto the passenger side floor. so if the floor is dry I would say the heater core is not the problem

Mar 27, 2011 | Nissan Quest Cars & Trucks

1 Answer

Bad 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.
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 | 1993 Saturn SL1

1 Answer

The heater core is bad


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.

Dec 17, 2010 | 1997 Mercury Grand Marquis

1 Answer

Getting water in front passenger floor boaed, what might cause it?


Clogged or disconnected drain hose from the heater core box. Or bad/leaking heater core. Does the liquid smell like coolant. If so bad heater core. If not and the water only when you use the AC then it is a drain hose issue. If neither of those pan out you could have a leaky windshield. However 99% of the time a wet passenger floor is caused by a bad heater core or drain hose.

Jun 05, 2010 | 1995 Chevrolet Caprice Classic

2 Answers

Smell antifreeze thru heat vents when heater is on in 2000 dodge durango. theres no leaks or drips.


Textbook bad heater core symptom. Might be a blown/leaking heater hose....but I doubt it. My monies are on a bad heater core.

Dec 04, 2009 | Dodge Durango Cars & Trucks

Not finding what you are looking for?
1998 GMC Safari Logo

Related Topics:

222 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

79024 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

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

Answer questions

Manuals & User Guides

Loading...