Question about 1999 Ford Expedition

1 Answer

Bad heater core

How to change and bypass

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 667 Answers

To change this heater core is a big job, I did mine on my 99 F150, which is incredibly similar, it requires the removal of the complete dash to remove the environmental control station (heater core/air conditioning evaporator). If you are not comfortable with removing basically the whole dash, I recommend that you take it to a good shop in your area. If you are comfortable with it, then you should get a Haynes or Chilton Manual and follow the steps listed in those manuals.

To bypass you would have to disconnect the two heater hoses on the right side of the engine compartment at the engine connectors and install a hose between the two.

Posted on Apr 14, 2009

Ad

6 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

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.
New users get 2 Free calls (no credit card required) and instant help on almost anything you can think of (from cars to computers, appliances, handyman, and even pets).
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
  • 491 Answers

SOURCE: fumes that smell like antifreeze through vents!

well it could be a clog but i doubt it. sounds like you will have to replace the heater core and it takes all day as the entire dash and steering column has to come out.

Posted on Dec 22, 2008

alicantecoli
  • 22219 Answers

SOURCE: Heater core burned out and I want to bypass the coolant hoses.

use a short length of 15mm copper pipe and join the heater pipes together where ther connect to teh heater feed pipes in the engine compartment

Posted on May 09, 2009

  • 25 Answers

SOURCE: A 1999 Kia Sportage. Heater core leaking.

tie both hoses together

Posted on Jun 25, 2009

stevenhurc
  • 450 Answers

SOURCE: BLOCKED heater core

remove one of the heater core hoses at the bulk head or firewall and loop together where they go to the engine so no coolant goes into cab (through firewall)

Posted on Jun 26, 2009

BCAS1298
  • 3092 Answers

SOURCE: How do you bypass a heater core on the 2000 Chevy

Yes it can be done. look at your engine on it there will be two heater hoses coming from the engine to the heater, disconnect those two heater hoses at engine, with heater hose and two hose clamps, get the hose and clamp first at auto parts, install one end and the other end of same hose, where you disconnected the heater hoses from the engine, you have just by-pass the heater, hope this was very helpful.

Posted on Jul 14, 2010

Testimonial: "Okay great thanks. I'll have to find a T, not much luck when I looked at Auto Zone or O'Reilly"

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

Would bypassing the heater core pose any problems to my engine?


No. You eventually will need the heat to defrost and de ice the windshield though.

Oct 24, 2015 | Cars & Trucks

3 Answers

Is it OK to bypass the heater core?


have you got a/c or climate control. Best to find out the cause rather than modifying. Check your owners handbook for the settings .... might be that is how it is intended to run
If you have ordinary a/c that is a different matter

Jul 16, 2015 | 2004 Chevrolet Silverado 1500 Crew Cab

1 Answer

My heater core is bypassed, car overheats, leaks when started and shakes, lexus is200


More than likely since your heater core is by-passed,your thermostat was probaly removed and you may be without one.Here's a link to check and replace it.Here's a link to heater core.Your heater core could be bad since it was bypassed,does the front floor board have water stains anywhere.

Jan 28, 2013 | 2003 Lexus IS 300

2 Answers

I have no Heat in my 2000 Ford Taurus!


If the heater core bypass refers to the water flow to the heater core, I would wonder why you did not flush the heater core as part of the system. You can drain water from engine, disconnect heater hoses and add a short hose to the heater and force a garden hose to flush the core.

I have not looked up the particulars for which heater system is on your car. Some just use duct-work to close off air flow through the heater core and the heater core always has hot water in it. Others will use a valve to shut off the water flow through the heater core and they can be either electric or vacuum operated. Combination systems are the third system which controls water flow and duct air flow at the same time.

Some of the Premium Climate control systems with Electronic displays have a computer diagnostic system which self-diagnoses problems but you need the sequence codes and explanation of where the bad part is located.

Aug 08, 2017 | 2000 Ford Taurus

1 Answer

Heater hose bypass


I'm guessing you have a bad heater core? To bypass this, you can disconnect hoses from the heater core. You may be able to do this from under the hood or under the car, but it may also be under the dash. IWhen you get these disconnected, you can use a piece of copper tubing or something the sameput the copper tubing into the ends of the hoses joining them together, bypassing the heater core. If it's your heater hose gon, you can cut it shorter by the leak but it is all best to replace rather than hack. Good luck with it. I hope that is what you maen't

Jan 06, 2013 | 2000 Pontiac Grand Prix

3 Answers

2000 dodge darango has no heat, looks like its been bypassed why would someone do that ? is that a problem


it was bypassed because the previous owner didn't want to change the leaking heater core, it is a big job.

Jan 25, 2011 | 2000 Dodge Durango

3 Answers

No heat/99 mercury sable


its not a fuse if the blower motor works , you have a clogged or bad thermastat, bad water pump or your radiator heater core is clogged

Nov 25, 2008 | 1999 Mercury Sable

Not finding what you are looking for?
1999 Ford Expedition Logo

269 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

76649 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

fordexpert

Level 3 Expert

5537 Answers

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

Answer questions

Manuals & User Guides

Loading...