Ford Ranger / B-Series :: 1998 - No Heat Only Cold Temp?
Jan 11, 2017
98 ford Ranger 2.5L.
I have not heat from the vents, doesn't get warm at all. If I idle the enginer in 30 Degree weather it gets to almost the C.
Upper Radiator hose is hot, I have verified the thermostat is new and it opens at 192 degrees as it should. Replaced the Water Pump, Fan spins freely.
I have attempted to burp the system, it isn't kicking out anymore air from the lines that I can tell. I used a large funnel and filled it with Anti-freeze, it filled the radiator, burped the system and the reservoir filled to overflowing. All with the engine hot. (To be specific the funnel was always full of fluid so no air could get sucked backwards)
The heater core hose on the left when looking from the front of the vehicle does not get hot, the one on the right gets warm. I theorize that the heater core is clogged up somehow and that is why that left line doesn't get hot. There is no fluid in the cab of the truck from the core.
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My 94 Ranger 3.0L 5speed 2wd temp gauge is staying on the cold side but the heater is working good and I used a laser pointing thermometer at the thermostat housing and got 180* after running for a while and I also noticed that the fuel economy had gone down along with the power. I was getting 340 miles to a tank but now I'm getting 280 per tank.
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I understand there is not much adjustable on my 98 Ranger (2.5L) as far as idle speed and mixture. It runs rough when started cold. Is this a sign to replace spark plugs?
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1998 4.0 ... She only misses about 30 seconds during stone cold startup. I figure it's probably the plug thats hardest to reach ? Isn't that the way it always is? From the hood I can see only one spark plug, so I figure I'll do all the plugs. Is there any right or wrong approach to the plugs? I did the thermostat today, but this plug job looks like it's gonna be a bitch. Time for some skinned knuckles Next is the right side O2 sensor, that looks like fun too. But I gotta say, this little truck is sweet. Great visibility and easy to park in the city. I really like her. She's a keeper. She needs some new sway bar bushings too, but no surprise with 127 K on the clock.
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What would cause my 4x4 high and 4x4 low lights to flash intermediately together on cold mornings while driving? It won't switch into 4x4 when it does this either. When it sits and warms up later in the morning all works as should. It doesn't do it all the time but when it does its annoying not to mention it's sucks when I need 4x4.
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I have a 95 ford f350 when u run it with the heat on the truck temp gauge says its overheating the heat will go from nice and hot to ice cold as soon as the temp gauge goes up to the red. I replaced the thermostat also checked for coolant leak cant find any but truck has strong anti freeze smell and the radiator keeps going low on coolant.
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2001 F150 5.4 4wd - AC not working but when I turn the temperature dial to the blue side and turn on the fan, super hot air comes out of the vents or wherever I direct the fan to blow (Floor, defrost, etc) I know it shouldn't blow ice cold especially since my AC doesn't work but.....shouldn't I feel a temp change coming from the vents when I move temp dial from the red area to the blue? It's max heat wherever I have it set.
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My son's 98 Expedition has no heat. The radiator and overflow tank are full, there's no air in the system. The radiator hoses get nice and hot but the heater hoses stay cold. We can hear the flow through the vents change when we change the temp control so I'm sure the blend door works fine. Seems like the problem is that no hot coolant is making it to the heater core. So I'm wondering if there is a diverter valve somewhere that could be bad that's keeping the hot coolant away from the HC or if a clogged HC is the only thing that could cause this.
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My aforementioned ranger does not seem to heat up. Unless it is 95 degrees in the shade.... I have movement in the dash meter. Some - it will come off of the bottom - to not quite the c - then immediately dive back to less than cold ( which I realize is not possible) - engine seems to run fine. Use 93 octane or it knocks like a diesel. 135 K - I changed the thermostat. Less movement on gauge now than Before. Coolant level is fine. I read something in another post about the blend door. But my engine temperature doesn't even seem to be getting warm so how would the blend door be effecting that? I am an electrician not a mechanic, however I do all my own mechanic in in self defense. Since I cannot afford mechanics.
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I have a 85 Ranger with a 2.3L engine. I'm not getting any heat. The temperature gauge never moves off of C, except when stuck in stop & go traffic. Even then it doesn't come up much. I tried to fix this last year by putting in a new thermostat, but it didn't work.
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1994 ranger 3.0 .. New: water pump, htr. hoses, radiator, thermostat, pulled & flushed htr. core. (2 year time frame) ....
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The air flow with ac and heat is low on my ford ranger. I can hear the blower change speeds, but on high, it barely comes out. The temp is fine and achanges from cold to hot like it should. i had the ac checked out by a shop that that does free checks - no problems with lines or compressor. I replaced the blower motor. The air changes from defrost to floor and all the positions fine, but the air flow out all the vents just isn't what it should be. It was working fine the first couple of days. I've read about the blend door motor, but I haven't read about people having this exact problem. I am almost to the point of bringing is to the dealer, but would rather fix it myself.
2007 Ford Ranger ... 6 cyl. 3.0 L ...
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I have been having a problem with my 2002 F250 Super Duty 4x4. It started about 2 months ago. I was in traffic (truck hadn't even been on for 15 minutes). The temp gauge spiked, so I pulled over and turned the truck off. I turned the ignition on and the gauge was normal so I started it and all was fine.
Fast forward a little and every so often about every 3 weeks it would overflow (coolant) but not get to the point that it would overheat. I changed the thermostat and all seemed good to go. Fast forward to yesterday morning. Got in the truck and left to go hunting, and I didn't even make it 10 minutes down the road when I turned the heat on and it blew cold.
I started to see the gauge creep up so I pulled over and shut it down. Upper hose was cold, lower is cold and both heater hoses are cold. After some time of waiting, I started it but the gauge kept creeping up and no heat, so I kept shutting it down. After about 5x of this, the heat worked and the upper hose got hot and all was right with the world. SO I drove it home. Coolant is new, flushed about a month ago and was running great since then. Thermostat is new. Do I have a blockage somewhere? Water pump bad?
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Was driving my truck I have a 97 f150 4x4 4.6L, btw. The heater started blowing cold air and I looked at the temp gauge but it was showing lower than it normally does and then, after a couple of miles or so I looked at the temp gauge again. By this time I was in my driveway. And it was overheating it might have been that way before I looked at the temp gauge again. But any way I opened the hood didn't see any leaks, all my hoses were hot except the top heater hose. Also checked the oil it was full and coolant was too, what this could be? Sounds like a t-stat to me? But could be worse. Also forgot to mention that the oil had no signs of water in there nor the expansion tank cap !
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i have a 2001 ranger 4x4 the problem is sometimes it will switch into 4 wheel drive and sometimes it wont just hear clicking noise ,i'm preety sure it doenst have a vaccum.
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I have a 2002 Ford Ranger 3.0L truck that, all of a sudden, has a problem with the HVAC system that blows air only thru the defrost vents even when selecting any other vent levels (defrost, face/middle or floor levels).
I did find a thread on another forum regarding this problem, only it was for the 95-01 Ranger model years, yet they say that the 2002 Ranger is not the same as those earlier models.
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1998 Ranger. I have no vacuum to the heater control valve (see link below) and hoses are warm/hot to the firewall. Where to start troubleshooting?
More Information for FOUR SEASONS 74809
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1992 Ranger 4x2 with 2.3L stick shift no AC no power steering. Recently the temp gauge began fluttering in the cold range from far left to just below the normal range. The defrost and heater blows only cold air. I had a professional shop radiator flush done. No change. I changed the engine thermostat out for a new one but no change. The upper radiator hose feels hot, so I assume the thermostat is working.
Questions: Where is the temp gauge sensor located on the engine? Is there another sensor or shutoff before the heater that might not be working? Where do I take things apart to check if the heater blend door is working?
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I have a 2001 Mazda B3000. The a/c compressor is coming on while I'm running my heat. The air coming out while the heat is on stays warm. However, when I was running the A/C during the summer the air would start blowing out warm after it had been on for a while. Several people told me it may have something to do with the blend door or blend door actuator but both appear to be working fine. What it could be?
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I have a 94 Ford Ranger, 2WD, 5-Speed, with 2.3 engine. My temp gauge hardly moves at all... It actually appears as if it doesn't move it you don't pay close attention and were to just glance at it. I'm thinking it is most likely the temp sensor that is on the engine block as I understand there is also one that is in the line that controls the fans for the radiator. Am I approaching this in the right direction or is there something else I might need to do?
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I have no heat in the LS at no settings. The AC runs good but does not seem to be regulated as it blows cold at any temp setting. The fan responds to settings but i still get no heat even with the AC turned off. I would like to find a diagram that shows the locations of the bleed valves to start a coolant air bleed.
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