Last post on Nov 16, 2013 at 2:51 PM
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Ford Expedition, Heating / Cooling
#113 of 145 99 Expedition "no heat"
Dec 31, 2010 (11:02 am)
I know my blend door is bad because I would have ac and heat in the rear but not the front, recently it blows no heat anywhere. The hoses going to the heater core are cold as is the lower radiator hose but the top hose get hot. I thought maybe I didn't have enough antifreeze in it before winter and the radiator froze up but lately its been warm enough for it to unthaw, its 45 degrees today. after warming the motor up I got some pressure building up in the coolant recovery tank but then it stops. I have cut my way into the blend door like heatertreater informs you to and the blend door was just dangling, I have close the blend door and opened it by hand and ran the heater with no luck of heat either way. I cant afford to have a mechanic fix it because I'm unemployed at the time, also when I drive it the temp gauge will almost "but doesn't" get into the hot (red) mark but then goes right back into the middle. Any help would be greatly appreciated
#114 of 145 I drained my rad today
Jan 01, 2011 (2:56 pm)
I got 2.5 gallons of (LOOKED LIKE MURKY RIVER WATER) but tested at -18.c
My question is is this enough antifreeze for the heater to blow heat? I will be putting
in 3 gallons of straight anti freeze tomorrow then top it off with distilled water, I hope this
fixes my heat issue. If not then I'm back to square one and still open for suggestions.
#115 of 145 Re: I drained my rad today [jimvenedocia]
Jan 02, 2011 (9:41 am)
Continuation, I drained the radiator and replaced with 3.5 gallons of new 50/50 I saw some small bubbling in the coolant bottle, this time I heard some noise around the water pump so I did the (screwdriver to the ear trick) and it sound like it coming from the water pump, would a bad water pump make it so it doesn't produce hot air? Come on man I've posted three times and no answers, someone throw me a bone here. Thanks...I also made sure the radiator was clear because I ran some of the old antifreeze through the top rad inlet and the same amount drained out the bottom.
#116 of 145 Re: I drained my rad today [jimvenedocia]
Jan 02, 2011 (4:20 pm)
How long does it take to get an answer around here? lol...
#117 of 145 Re: I drained my rad today [jimvenedocia]
Jan 02, 2011 (7:44 pm)
How about a plugged heater core, a stuck thermostat or a broken blend door?
#118 of 145 Re: I drained my rad today [alwaysfords2]
Jan 02, 2011 (8:33 pm)
Thanks for your response, did you read where I installed a new t-stat and already cut into the blend door and revealed it was bad? and that it didnt matter where I (by hand) put the door position in it still blew cold air? Seeing how the water pump is making a noise I didnt notice before I will be replacing it. Thanks again.
#119 of 145 Re: I drained my rad today [jimvenedocia]
Jan 03, 2011 (5:12 am)
I'd agree the water pump is the next place to look.
#120 of 145 Re: I drained my rad today [alwaysfords2]
Jan 03, 2011 (5:30 am)
Thats my job for today, will let you know. Thanks a million,
#121 of 145 Re: I drained my rad today [jimvenedocia]
Jan 03, 2011 (10:58 am)
The water pump was the culprit, for anyone's further information the clutch fan nut 32mm loosens counter clockwise NOT clockwise like I was told by the counter person at Autozone, he read what the book said but the book is wrong they loosen counter clockwise. I found the quickest and least painful way to loosen the clutch fan nut is with a muffler impact with a straight blade, just take it slow. Job completed.
#122 of 145 Re: I drained my rad today [jimvenedocia]
Jan 03, 2011 (3:27 pm)
Nice and toasty warm now?