No Heat Uggghh
Thread Starter
|
New User
Joined: Jul 2006
Posts: 12
Likes: 0
No Heat Uggghh
Read till i couldnt read any more. Brain is fried.
97 Ford f-150. No heat.
I have replaced Radiator (leaking)
New heater core (signs of leaking when i replaced it)
New blend door (why not...im already in there)
actuator motor works fine
new thermostat.
both heater core hoses are hot. (same temp, feels like)
My next step is going to be water pump. I read where some have replaced pump and found that although no leaks were found the fins were deteriorated to the point it would not work.
Truck does not overheat.
coolant level is fine.
cab gets heat for a few seconds then quits.
Money is not an issue so I dont mind throwing a few parts at it. What other parts are left?
temp. control switch
water pump?
Im going to drink some beer and hope that fixes it. If not maybe violating my wife's space will. Thanks in advance.
97 Ford f-150. No heat.
I have replaced Radiator (leaking)
New heater core (signs of leaking when i replaced it)
New blend door (why not...im already in there)
actuator motor works fine
new thermostat.
both heater core hoses are hot. (same temp, feels like)
My next step is going to be water pump. I read where some have replaced pump and found that although no leaks were found the fins were deteriorated to the point it would not work.
Truck does not overheat.
coolant level is fine.
cab gets heat for a few seconds then quits.
Money is not an issue so I dont mind throwing a few parts at it. What other parts are left?
temp. control switch
water pump?
Im going to drink some beer and hope that fixes it. If not maybe violating my wife's space will. Thanks in advance.
Hotshot
Joined: Jul 2005
Posts: 11,931
Likes: 180
sounds like your on the right track. You need HOT water. If the thermostat is working and heater is not plugged, then water should be hot. You need a constant flow of HOT water so the pump is important. I have heard of several pumps that the impellers rotted out after 10 years. That might be a good spot to look when your running out of other ideas. Blend door is always a question, but seems like you got that covered !
Senior User
Joined: Oct 2014
Posts: 224
Likes: 1
From: St. Petersburg, Fl
To check your water pump. With the engin off squeze the uper radiator hose then with the engin running and after it warmsup while still running check hose again if pump is working it will be much stiffer.
Cross-Country
Joined: Oct 2014
Posts: 96
Likes: 0
i have a 98 that gave me similar problems. i had a bad hole in the radiator, i replaced that along with t-stat. still no heat. i finally ended up parking it for 6 months. went to fire it up and it was hydrolocked. i got it free and kept driving but it would overheat. i replaced the water pump and ended the overheat, however i have an intake gasket leak, engine oil is clear ruling out head gasket.
i know you said you are not overheating, but i lost heat before i started overheating. you are on the right track, the water pump is only $40 and pretty easy to change. when i replaced my original, 238,000 miles the blades were prefect condition but the press fit holding them onto the shaft losened up casing the pump to only operate minimally if at all. if you are not gettting flow through your heater core, it can also cause what you describe. i replaced mine already, but when i hoad no heat i removed the front core line, and used compressed air blowing back through the heater core into the engine, i realize this is not the best idea in case of a blockage, but i was fairly certain that it wasnt blocked. good luck, and be sure to post your findings
i know you said you are not overheating, but i lost heat before i started overheating. you are on the right track, the water pump is only $40 and pretty easy to change. when i replaced my original, 238,000 miles the blades were prefect condition but the press fit holding them onto the shaft losened up casing the pump to only operate minimally if at all. if you are not gettting flow through your heater core, it can also cause what you describe. i replaced mine already, but when i hoad no heat i removed the front core line, and used compressed air blowing back through the heater core into the engine, i realize this is not the best idea in case of a blockage, but i was fairly certain that it wasnt blocked. good luck, and be sure to post your findings
Fleet Mechanic
Joined: Dec 2013
Posts: 1,268
Likes: 35
From: Utica, Nebraska
Ever thought that it could be the **** for heat that isn't griping the needle to turn heat/cold? Had this happen a couple years ago and thought it was the blend door. Before my dad and I were going to tear the dash apart on the F150 I decided to switch the blower fan **** with the temp **** and got heat instantly.
Thread Starter
|
New User
Joined: Jul 2006
Posts: 12
Likes: 0
Trending Topics
Cross-Country
Joined: Oct 2014
Posts: 96
Likes: 0
tell me about it, im scrambling to get my 5.4 swap done. when it frosts up overnight the windshield doesnt clear until i get home at night!!!!
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
Posting Guru
Joined: Jan 2000
Posts: 1,899
Likes: 1
From: Cullman Alabama
When you were doing the Radiator work, did you take the opportunity to run the Garden hose water through the Heater core?
I'd sure be suspicious of that door in the heater too. The motor and hinge might be working but the flapper aint.
Be sure you have enough water to make the Heat gauge sensor work. I lost an engine to overheat because the water was low and the Gauge didn't tell me. It kept saying the engine temp was OK when there wasn't any water in there for cooling.
I'd sure be suspicious of that door in the heater too. The motor and hinge might be working but the flapper aint.
Be sure you have enough water to make the Heat gauge sensor work. I lost an engine to overheat because the water was low and the Gauge didn't tell me. It kept saying the engine temp was OK when there wasn't any water in there for cooling.
Cross-Country
Joined: Oct 2014
Posts: 96
Likes: 0
that sounds like a bad sensor...i ran my 98 for a few months with a big hole in the radiator, whenever the coolant would get to low the ecm would retard the timing to the point where you would not be able to maintain speed, pull over add some water.. back on the road.
Posting Guru
Joined: Jan 2000
Posts: 1,899
Likes: 1
From: Cullman Alabama
A guy put a small Ford V-8 in an airplane. Among his other problems, he put the Radiator in the back of the Plane. Long pipes and hoses to the engine for cooling.
He had to add a pressure gauge to tell him he still had water in the system.
LOL, What if he didn't?
One other way of telling if you have enough Fluid in the System, it watching the Catch jug. When the temp and pressure is up, the overflow will be full. When the engine cools down, it will take some water out of the Catch jug.
He had to add a pressure gauge to tell him he still had water in the system.
LOL, What if he didn't?
One other way of telling if you have enough Fluid in the System, it watching the Catch jug. When the temp and pressure is up, the overflow will be full. When the engine cools down, it will take some water out of the Catch jug.
Thread Starter
|
New User
Joined: Jul 2006
Posts: 12
Likes: 0
Issue resolved. Just finished installing new water pump in truck. Ive never seen a pump so deteriorated this badly. My friends called me crazy....but I knew it was the pump.
the fins were completely gone.
Truck never over heated... EVER. I guess it pumped enough to keep truck cool but not enough for heater core to heat cab.
the fins were completely gone.
Truck never over heated... EVER. I guess it pumped enough to keep truck cool but not enough for heater core to heat cab.
Posting Guru
Joined: Jan 2000
Posts: 1,899
Likes: 1
From: Cullman Alabama
Boy!
You got all the life outta that pump.
I've had them leak, but that's the first one I've ever seen that was worn off.
It looks like a Chemical problem. Like the wrong anti-freeze or a combination of Red, Pink and Yellow Antifreeze.
Your next problem might be some soft-plugs rusted through.
You got all the life outta that pump.
I've had them leak, but that's the first one I've ever seen that was worn off.
It looks like a Chemical problem. Like the wrong anti-freeze or a combination of Red, Pink and Yellow Antifreeze.
Your next problem might be some soft-plugs rusted through.
Thread Starter
|
New User
Joined: Jul 2006
Posts: 12
Likes: 0
No doubt. I got ever bit out of that sucker!! I got the truck off my brother in law. He cant spell maintenance.he changed the oil but thats about it.
taken me some $$ but the truck is coming back to life.
My second winter with her. This one I will actually have heat.
Hope this thread helps someone in the future.
taken me some $$ but the truck is coming back to life.
My second winter with her. This one I will actually have heat.
Hope this thread helps someone in the future.