Still No heat in 99 taurus 3.0 ohv - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
ยป Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Ford Cars and PAG Vehicles > Ford Taurus | Mercury Sable | Ford Taurus SHO | 1986-2007
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto Escrow

Ford Taurus | Mercury Sable | Ford Taurus SHO | 1986-2007 Forum for discussion of the Ford Taurus, Mercury Sable and Ford Taurus SHO. Covers vehicle years: 1986-2007

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 09-17-2009, 10:17   #1 (permalink)
Registered User
 
Join Date: Sep 2009
Posts: 4
Still No heat in 99 taurus 3.0 ohv

As a result of viewing this forum I successfully removed and installed my water pump which was making a great deal of noise and leaking. I've also flushed out the heater core by setting up a hose that went from the heater inlet and exited via the hose that goes to the t-stat. I then reversed the flow and did the same. Fortunately or perhaps unfortunately, very little of the mud/scale came out...water was running clear within 60 seconds, but still no heat. BTW the brown coloring in the pics is a result of the expansion tank leaking over time and spraying the "infected" coolant all over.

I don't think it's a t-stat issue because my temp is always in the low/mid range. Is it the dreaded blend door? Any other suggestions?

Thanks
BC
Attached Images
File Type: jpg 99 taurus 4a.jpg (61.3 KB, 12 views)
File Type: jpg 99 taurus 5.JPG (81.2 KB, 13 views)
bcullen is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 09-17-2009, 11:45   #2 (permalink)
Moderator
 
Join Date: Nov 2008
Posts: 1,067
Re: Still No heat in 99 taurus 3.0 ohv

have you bled the system ? The heater core is above the motor. If your heater hose are
scalding on both sides it could be your blend door. When did this start ? As in no heat ?
before or after you changed things ?
chipset is offline   Reply With Quote
Old 09-17-2009, 14:48   #3 (permalink)
Registered User
 
Join Date: Sep 2009
Posts: 4
Re: Still No heat in 99 taurus 3.0 ohv

Chipset,

Once I installed a new expansion tank, I kept the cap off until the bubbles stopped and then let it cool down and checked the fluid levels. Is that what you mean by bleeding?

The no heat issue was before I installed the new water pump.

BC
bcullen is offline   Reply With Quote
Old 09-17-2009, 19:33   #4 (permalink)
Registered User
 
Join Date: Aug 2009
Posts: 7
Re: Still No heat in 99 taurus 3.0 ohv

Quote:
Originally Posted by bcullen View Post
As a result of viewing this forum I successfully removed and installed my water pump which was making a great deal of noise and leaking. I've also flushed out the heater core by setting up a hose that went from the heater inlet and exited via the hose that goes to the t-stat. I then reversed the flow and did the same. Fortunately or perhaps unfortunately, very little of the mud/scale came out...water was running clear within 60 seconds, but still no heat. BTW the brown coloring in the pics is a result of the expansion tank leaking over time and spraying the "infected" coolant all over.

I don't think it's a t-stat issue because my temp is always in the low/mid range. Is it the dreaded blend door? Any other suggestions?

Thanks
BC
Check all the hoses back there with the car warmed up. I had a "no heat" problem in my taurus, and I ended up having a blocked core AND outlet hose. Also, when you flushed it did you completely block the bypass hose? you would be surprised how much water can sneak by even a good pair of vice grips. You might be totally missing the core itself.
bluetaurus is offline   Reply With Quote
Old 09-18-2009, 06:33   #5 (permalink)
Registered User
 
Join Date: Sep 2009
Posts: 4
Re: Still No heat in 99 taurus 3.0 ohv

do you suggest that I disconnect directly from the fire wall and re-flush? How is the best way to do that? Do I disconnect both inlet and outlet at same time or do one and then the other? Is inlet the top?

Which hose should be hot and which one should be cool?

BC
bcullen is offline   Reply With Quote
Old 09-18-2009, 23:25   #6 (permalink)
Administrator
 
Join Date: Sep 2006
Location: Arkansas
Posts: 5,932
Re: Still No heat in 99 taurus 3.0 ohv

Start the car, turn the heater on hot, bring the car to normal operating temperature and feel both heater hoses. If one is hot and the other isn't, you have a blockage in your heater core. If both are hot, then you have a blend door issue.
jwko is offline   Reply With Quote
Old 09-19-2009, 11:53   #7 (permalink)
Registered User
 
Join Date: Aug 2009
Posts: 7
Re: Still No heat in 99 taurus 3.0 ohv

Quote:
Originally Posted by bcullen View Post
do you suggest that I disconnect directly from the fire wall and re-flush? How is the best way to do that? Do I disconnect both inlet and outlet at same time or do one and then the other? Is inlet the top?

Which hose should be hot and which one should be cool?

BC
That is what ended up working for me. The outlet hose will be on the passenger side. I recently posted a thread about my adventure in getting my heat working again. To be honest if you want to be totally sure you get everything out you'll need to remove the entire hose structure and flush it all.

every hose back there should be hot
bluetaurus is offline   Reply With Quote
Old 09-20-2009, 06:20   #8 (permalink)
Registered User
 
Join Date: Sep 2009
Posts: 4
Re: Still No heat in 99 taurus 3.0 ohv

I HAVE HEAT !!!!

After flushing several different ways without any luck I decided to go directly to the firewall (no issue with bypass) and flushed both metal tubes of the heater core. I also had an old metal cooking skewer that I bent at a 90 degree angle and loosened some crud. After about a 20 minute pulsating flush (crimped the garden hose in my hand) of the tubes and the actual hoses I buttoned everything up making sure to replace the spring clamps with the more conventional hose clamps, topped off the coolant, let it run up to temp - which took a very long time Hmm? - with the expansion tank cap off to clear any air out of the system and lo and behold I have HEAT!...Let's hope it stays that way through the winter.

Thanks for everyone's input...is the slow time it took to come up to temp enough of a warning sign for a new t-stat? It drove the rest of the day and normal operating temp.

BC
bcullen is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Ford Cars and PAG Vehicles > Ford Taurus | Mercury Sable | Ford Taurus SHO | 1986-2007



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 16:06.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.