Go Back   Ford Truck Enthusiasts Forums > Small Chassis Trucks > Ranger & B-Series
Sign in using an external account
Register Forgot Password?


Ranger & B-Series All Ford Ranger and Mazda B-Series modelsSPONSORED BY:

Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
LinkBack Thread Tools Search this Thread
  #1 (permalink)  
Old 09-29-2009, 07:17 AM
tps93ranger tps93ranger is offline
Senior User
 
Join Date: Dec 2005
Location: White House TN.
Posts: 137
tps93ranger is starting off with a positive reputation.
Heater not working.

I amwondering if I have a problem, I turned my heater on this mornining and I got cold air, no heat. I took the radiator cap off while truck was still running and the fluid was not moving until the compressor kicked in and then it just dropped down a little. I am curious if it is the thermostat or the heater core, temp. is running fine and I replaced the water pump this year. I am not seeing any fluid on the floor as whena heater core leaks. By the way truck is a 93, with 177k on it. Thank you.
Reply With Quote
  #2 (permalink)  
Old 09-29-2009, 08:14 AM
MikeB 88's Avatar
MikeB 88 MikeB 88 is offline
Posting Guru
 
Join Date: Jan 2005
Posts: 1,244
MikeB 88 is gaining momentum as a positive member of FTE.
A co-worker had almost the same problem. No heat, but everything else was fine. He took it to the dealer and they wound replacing a circuit board somewhere for that system. I can ask him tonight exactly what they replaced if you want.
__________________
Mike B
1969 ForDor Thunderbird
2006 Dodge Charger (wifes car)
2000 Ranger Regular cab
2.5L with A/C backed up by the 5 speed manual, 2WD.
170,000+ on the clock.
Reply With Quote
  #3 (permalink)  
Old 10-01-2009, 11:20 PM
seagull369 seagull369 is offline
Senior User
 
Join Date: Jun 2003
Location: poughkeepsie ny
Posts: 256
seagull369 is starting off with a positive reputation.
Heater core might have some blockage in it, but unless you've neglected flushing the coolant for forever and a day I doubt that's the problem. It wouldnt hurt to change the thermostat. I'm not sure what you mean about the fluid 'not moving,' but make sure the level is full in the rad.

It's also possible there's a problem with the linkage that attaches the temperature selector on the panel to the heater control valve. If it came unhooked, the valve could've been left in the closed position not allowing hot water to come into the core (happened on my Honda once).
__________________
Ken 1994 Mazda B-4000 4.0 litre
Reply With Quote
  #4 (permalink)  
Old 10-02-2009, 05:53 PM
87 XLT 87 XLT is offline
Postmaster
 
Join Date: Oct 2003
Location: SoCal
Posts: 3,790
87 XLT is gaining momentum as a positive member of FTE.
The heater hoses should both be getting VERY hot. Are they?

If they are the problem is with the blend door
Reply With Quote
  #5 (permalink)  
Old 10-02-2009, 11:15 PM
tps93ranger tps93ranger is offline
Senior User
 
Join Date: Dec 2005
Location: White House TN.
Posts: 137
tps93ranger is starting off with a positive reputation.
I have religiously flushed and cleaned the cooling system and I have a full radiator. I talked with a buddy at work who said change tstat first. I will do that this weekend and report back.Also I have a few times turned the heat on and have it and others cold so I believe it is the tstat. Thanx for all the info.
Reply With Quote
  #6 (permalink)  
Old 10-06-2009, 07:58 AM
MikeB 88's Avatar
MikeB 88 MikeB 88 is offline
Posting Guru
 
Join Date: Jan 2005
Posts: 1,244
MikeB 88 is gaining momentum as a positive member of FTE.
tps93ranger,

I talked to my co-worker last night. His Ranger, like your is well maintained. He also had the same symptoms, everything looks normal but no heat. He took his to the dealer and they found a bad circuit board for the blend door motor. It sounds like the board and blend door motor are changed as an assembly. He told me the part was around $80 and over $200 for labor.
__________________
Mike B
1969 ForDor Thunderbird
2006 Dodge Charger (wifes car)
2000 Ranger Regular cab
2.5L with A/C backed up by the 5 speed manual, 2WD.
170,000+ on the clock.
Reply With Quote
  #7 (permalink)  
Old 10-06-2009, 10:15 AM
michigan66's Avatar
michigan66 michigan66 is offline
Posting Guru
 
Join Date: Mar 2005
Location: Saginaw, MI
Posts: 1,530
michigan66 is gaining momentum as a positive member of FTE.
What does your temperature gauge indicate - is it sitting on cold or does it show normal temp? If it is sitting on cold, replace the thermostat.
__________________
2008 XLT, 2.3 DOHC, 5R44e Automatic, 7.5" axle, 4.10 gears, 50 K miles
Motorcraft Blend in Engine, PS, PB, A/C, 225/70 x 15 Continental ContiTrac RWL tires,
extended cab, 6' bed, Access tonneau cover.

Previous vehicle: 1991 XLT, 2.3 SOHC (Lima), M5OD, 7.5 axle 3.45 gears. Donated to a charity.
Reply With Quote
  #8 (permalink)  
Old 10-06-2009, 12:11 PM
aquanaut20's Avatar
aquanaut20 aquanaut20 is offline
Postmaster
 
Join Date: Aug 2003
Location: BC Canada
Posts: 2,844
aquanaut20 is starting off with a positive reputation.
Check the temp of the hoses supplying the heater core, if they are both hot the valve is working, look at blend door.

If only one is hot check the heater flow valve.

If neither is hot, check thermostat, fluid level.

HOT = >170*
__________________
97, 4Dr, Controltrac, X engine, 390k
Reply With Quote
  #9 (permalink)  
Old 10-10-2009, 09:40 AM
tps93ranger tps93ranger is offline
Senior User
 
Join Date: Dec 2005
Location: White House TN.
Posts: 137
tps93ranger is starting off with a positive reputation.
Yes both of my hoses are hot and when I turn on the heat it will blow hot for a minute and then go cold. Where the hell is the blend door and does a 93, have a circuit board to control it? my temp gage reads just below normal.
Reply With Quote
  #10 (permalink)  
Old 10-10-2009, 03:21 PM
MikeB 88's Avatar
MikeB 88 MikeB 88 is offline
Posting Guru
 
Join Date: Jan 2005
Posts: 1,244
MikeB 88 is gaining momentum as a positive member of FTE.
Quote:
Originally Posted by tps93ranger View Post
Yes both of my hoses are hot and when I turn on the heat it will blow hot for a minute and then go cold. Where the hell is the blend door and does a 93, have a circuit board to control it? my temp gage reads just below normal.
I would assume the blend door is somewhere under the dash. My co-worker was charged $80 for the circuit board and a little over $200 in labor to have his fixed.
__________________
Mike B
1969 ForDor Thunderbird
2006 Dodge Charger (wifes car)
2000 Ranger Regular cab
2.5L with A/C backed up by the 5 speed manual, 2WD.
170,000+ on the clock.
Reply With Quote
  #11 (permalink)  
Old 10-10-2009, 03:55 PM
pgw85706 pgw85706 is offline
Elder User
 
Join Date: Nov 2006
Location: Lynchburg, VA
Posts: 696
pgw85706 is starting off with a positive reputation.
Consider this thread on the blend door fix for additional info.

http://www.ford-trucks.com/forums/85...-door-fix.html

http://www.ford-trucks.com/forums/70...lend-door.html
__________________
__________________________________________________ __
'99 SCAB XLT 3.0L FFV M5OD 4x4 with off-road package
Reply With Quote
  #12 (permalink)  
Old 10-22-2009, 09:42 PM
burley68 burley68 is offline
New User
 
Join Date: Feb 2008
Location: Omaha, NE
Posts: 24
burley68 is starting off with a positive reputation.
Sorry for the late post, but I would go with the t-stat first. $10 vs. $80 (circuit board) - do the math. Mechnical parts usually fail before electronics do anyway.

If your gage reading is below the N in "Normal", it's not opening up all the way. With having 177k miles on the truck, it's probably time to change it out anyway - not that there's a set replacement interval. I've replaced t-stats on three of my vehicles, all different mileage - 80k, 125k & 150k, but they all had the same symptoms as yours. In fact I'm about to change one out on my son's car this weekend.

Something just occured to me (maybe something to look at too) - you said the water pump was changed...any chance some excess sealant from the gasket let loose and clogged the heater core?
Reply With Quote
  #13 (permalink)  
Old 10-22-2009, 10:47 PM
tps93ranger tps93ranger is offline
Senior User
 
Join Date: Dec 2005
Location: White House TN.
Posts: 137
tps93ranger is starting off with a positive reputation.
Yes Burley68 I have changed the tstat in the last 3 yrs. but I am considering doing it again. I have an update, my wife and I left for a week and when we returned I once again had to use the heat but this time I turned it on defrost started warm then went cold but when I switched over to vent or floor the heat blows out hot. now what is the problem with this, is there a separate door which controls the defrost, or do I have a ghost truck(lol)?
Reply With Quote
  #14 (permalink)  
Old 10-23-2009, 11:50 PM
burley68 burley68 is offline
New User
 
Join Date: Feb 2008
Location: Omaha, NE
Posts: 24
burley68 is starting off with a positive reputation.
Okay, THAT sounds like it may be a cable adjustment problem. I'm pretty sure the 93's are set up with the slide control instead of the dial control like the newer models have. I have a '90 that had a similar problem in the past with the temp control. The control cable slipped and wasn't getting full cold. The function selector is set up the same as the temp control - here is the procedure for adjusting the control cable:
Control Cables
ADJUSTMENT
Function Selector and Temperature Selector Control Cable
To check the temperature cable adjustment, move the temperature control lever all the way to the left, then move it all the way to the right. At the extreme ends of lever travel, the door should be heard to firmly seat, indicated by a loud thumping sound, allowing either maximum or no air flow through the heater core.
To check the function cable adjustment, see that the function lever will reach the detents at the far left and right of its travel. In addition, check that the air flow is correct when the function lever is moved through each detent provided in the control assembly. If cable adjustment is needed, proceed as follows:
1. Disengage the glove compartment door by squeezing its sides together. Allow the door to hang free.
2. Working through the glove compartment opening, remove the cable jacket from the metal attaching clip on the top of the plenum by depressing the clip tab and pulling the cable out of the clip.
NOTE: The adjustable end should remain attached to the door cams.
3. To adjust the temperature control cable, set the temperature lever at COOL and hold. With the cable end attached to the temperature door cam, push gently on the cable jacket to seat the blend door. Push until resistance is felt. Reinstall the cable to the clip by pushing the cable jacket into the clip from the top until it snaps in.
4. To adjust the function control cable, set the function selector lever in the DEFROST detent and hold. With the cable end attached to the function cam, pull on the cam jacket until cam travel stops. Reinstall the cable to the clip by pushing the cable jacket into the clip from the top until it snaps in place.
5. Install the glove compartment.
6. Run the system blower on HIGH and actuate the levers, checking for proper adjustment.

Sorry, can't embed the diagram, but hope this helps.
Reply With Quote
  #15 (permalink)  
Old 12-02-2009, 01:31 PM
tps93ranger tps93ranger is offline
Senior User
 
Join Date: Dec 2005
Location: White House TN.
Posts: 137
tps93ranger is starting off with a positive reputation.
OK update,I changed the tstat and no change. I have checked the defrost door, its working. I checked today and now one hose is getting hot and not the other. I had a few people tell me it might b a control valve in my heater hose and I have looked and have nothing in my heater hoses. any chance it might b somwhere else, dont know just asking. I am becoming frustratedwith this sucka. Everything seems to b working ok.
Reply With Quote
Old 12-02-2009, 01:31 PM
Reply

Go Back   Ford Truck Enthusiasts Forums > Small Chassis Trucks > Ranger & B-Series

Tags
150, 1994, 1997, 2001, 93, core, f150, ford, heater, hot, problem, problems, ranger, truck, working

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Forum Jump



All times are GMT -5. The time now is 06:39 PM.


Powered by vBulletin® Version 3.7.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup