[jasonrebellion]

I've got a 98 Taurus SE, when the car warms up the heat will blow hot only for a second and then go lukewarm, depending on outside temperature. Any ideas what could be causing this? I can turn it off and wait a few mins and then back to vent and it'll be warm again for a second. Car isn't low on coolant and I'm not getting a gurgle from the heater core being low

 

[machineop]

Sounds like a clogged heater core though maybe not too clogged, because it sounds as though some coolant is getting thru. Try clamping your HC bypass hose shut and see if your heat movement doesn't improve. GOOD LUCK! P.S I tried this last winter and my heat was better the more I drove it the better the heat I drive an 02' vulcan and eventually flushed the core again GOOD LUCK!

 

[prismatic]

Sounds like a clogged heater core though maybe not too clogged, because it sounds as though some coolant is getting thru. Try clamping your HC bypass hose shut and see if your heat movement doesn't improve. GOOD LUCK! P.S I tried this last winter and my heat was better the more I drove it the better the heat I drive an 02' vulcan and eventually flushed the core again GOOD LUCK!

The problem with that is it forces the gunk thats clogging your heater core into the rest of your system. If it's clogging the heater core what do you think it does to the radiator or block/head?

Take a garden hose and flush it through. When the water runs clear through and unimpeded it should be good to go.

 

[machineop]

Yeah that might be true, but once you get your heat working again you can then flush out whole system, a lot easier job than dealin' with a clogged HC.

 

[sheila]

Isolate the core for the initial flush, then flush the remainder of the system.

 

[901-Memphis]

Sounds like your classic plugged core here is a writeup.

http://www.taurusclub.com/forum/98-...29385-writeup-clinton-gen-3-heater-flush.html

If you want to get it done right and have all your heat back here is a shortcut to replacing the core which can be done if you are handy for the cost of the core.

 

[danhasenauer]

Sounds like your classic plugged core here is a writeup.

http://www.taurusclub.com/forum/98-...29385-writeup-clinton-gen-3-heater-flush.html

If you want to get it done right and have all your heat back here is a shortcut to replacing the core which can be done if you are handy for the cost of the core.

YouTube - Heater core shortcut

Very good video. I might add that there is no tab to cut off on a G3...

 

[machineop]

Ah the old heater core video shortcut trick 'eh!

 

[901-Memphis]

Very good video. I might add that there is no tab to cut off on a G3...

Yep thats true. Thats a G4 in the pic but works just the same on the Generation 3