Question about 1994 Cadillac Fleetwood

1 Answer

Heater core leaking

Do you have a break down of how to replace the core. Some told me that you have to drain the a/c . The manaul says to take the lower part of the modular apart to repace the core. What do you suggest? Thanks

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

We found out that you do not have to pull the dash out to replace the heater core. Thanks for you follow up

Posted on Aug 08, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

How to fix heater hoseon fire wall under hood


Where is the break at? Do you see a leak outside the firewall or is the leak from a drain? If it is from the drain you probably have a bad heater core. The solid lines on most heater cores run through the firewall and you should not have any soft lines inside the firewall. If you are just looking for a patch for a hose outside the firewall I would suggest you replace it. Otherwise you could cut the hose where the leak is, insert a solid piece of tubing and lock it down with hose clamps. Please just do not make that a long term fix.

Feb 04, 2013 | Ford Mustang Cars & Trucks

1 Answer

I here water noise in the cab on the right side when i start the truck or take off


you most likely need a heater core, the heater box has a drain that is there to drain the condensation from the A/C system if the heater core is leaking the anti frezze will run out the same drain, and not leak on the floor unless the core starts leaking to much foir the draine to handle, the water running noise is there because when you start the engine the heater core is empty because all the coolent has leaked out of it and what you are hearing is the core filling back up....replace the core and it should take care of both problems the noise and the leak....good luck

Dec 24, 2011 | 2001 Chevrolet Silverado 1500

2 Answers

Water leaking onto passenger side floorboard,soaking the carpet


Your heater core has developed a leak - the wetness on the passenger side carpet is engine coolant
from a heater core leak, or a leak in one of the two hoses connected to the back of the heater core.
Your strategy: disassemble dash down to heater core, determine whether you'll need a new heater
core or new hose (or new hose clamp), then replace the offending part.

Jul 20, 2011 | 2005 Chrysler Town & Country

1 Answer

Im replacing the heater core in 2001 jeep cherokee...i have the dash off down to fire wall...all screws are out of bottom heater box but I cant remove the bottom of box to get to heater core...what am I...


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 19, 2010 | 2001 Jeep Grand Cherokee

2 Answers

Need to replace the heater core


Inspect/Replace 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.

Nov 28, 2010 | 2002 Nissan Xterra

1 Answer

Fog coming from deforst leaving greasy film on window


it sounds like your heater core is leaking. Check to see if your coolant level is low. A radiator pressure test will show a leak. coolant may be dripping down from the heater air box drain hose. Replacement of the heater core is expensive. you can bypass the heater core, to keep you on the road, by looping one of the heater hoses back to the engine....but you will have no heat. Here are a couple of sites for reference;

http://www.2carpros.com/forum/1999-dodge-dakota-heater-core-vt214043.html

http://dodgeforum.com/forum/1st-gen-durango/18340-heater-core-removal-installation.html

Nov 07, 2010 | 1999 Dodge Dakota

1 Answer

Truck is blowing vapors out of heating vents...fogs inside of truck


This is usually a sign of a heater core that has a leak. check for low coolant level in your radiator. there is a condensate drain for the blower box, see if coolant is dripping from the drain under the truck. To make a temporary repair, after confirming leaking heater core, loop one of the heater core hoses back to the engine, bypassing the heater core. I say after confirming because the heater core hose nipples break easily when removing hoses. The smell in the cab would be a sweet smell from leaking coolant.

On a very humid day fog can be seen coming out of vents when using the AC. This would be a normal condition.

Nov 03, 2010 | 1999 Dodge Durango

3 Answers

99 Grand Cherokee fogs windows on warm defrost, but not on cold


absolutley,change the heater core,its a small radiator,with a tiny hole,it still works,but it leaks,it will continue to get worse over time

Oct 06, 2009 | Jeep Grand Cherokee Cars & Trucks

2 Answers

Overheating and leakage...


That tube is the A/C drain port. Your problem is the heater core is leaking and draining from the A/Cdrain port. I hope this helps.
Thank You,
Roy

Aug 09, 2009 | 1991 Chevrolet Corsica

4 Answers

Leaking antifreeze from the bottom of car


This is most likely the heater core. You'll see the anti-freeze leak sometimes outside the truck because some heater boxes have a drain tube for this reason. Of course, it could possibly be a loose heater hose connection or a leaking 'diverter or bypass valve'. Most often it is the heater core though. Pay extra attention to your coolant level until it's repaired, so as not to run low on coolant and overheat your engine.

Most heater cores can be replaced with just basic mechanical knowledge and tools. Click here for a step-by-step video of how to go about it. Good luck!

Dec 14, 2008 | 2000 Ford Expedition

Not finding what you are looking for?
1994 Cadillac Fleetwood Logo

Related Topics:

109 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cadillac Experts

yadayada
yadayada

Level 3 Expert

61168 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

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

Answer questions

Manuals & User Guides

Loading...