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#1
01-22-2012, 01:44 PM
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Temp. needle drops after turning off heater fan
My ranger has been sitting for awhile and I am getting it back on the road. I am having issues with the heat, but it seems to be coming back slowly. I have a weird problem. Heat comes out of the vents (lightly) when the fan is off, when I turn the fan on heat comes out for a little while then starts to turn cold. When I turn the fan off I noticed that the temperature gauge drops from the middle to just above "C". Then it slowly builds back up to half way again.
I have replaced the thermostat and the radiator (not because of this, just because it was rusted and leaking) and have new anti-freeze. The coolant level is correct and there are no air bubbles. Anyone have an idea why this is happening?
__________________
1998 Ranger 4x2 Sport package 3.0L Six cylinder w/5 speed manual transmission 317,000 miles 
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#2
01-22-2012, 01:52 PM
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Maybe a bad heater core? I'm not sure. Or maybe it's going out sounds like it may be clogged
Sent from my iPhone using FRF App
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2001 3.0 V6 Automatic "Police Interceptor" 4x4 Off-Road 3" Body Lift Belltech 6400 Shackles JBA Headers LOKRITE Locker COBRA disc conversion
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#3
01-22-2012, 01:55 PM
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Re: Temp. needle drops after turning off heater fan
Quote:
What I am wondering is why the engine temperature needle drops when I turn the heater fan off??
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1998 Ranger 4x2 Sport package 3.0L Six cylinder w/5 speed manual transmission 317,000 miles
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#4
01-22-2012, 01:58 PM
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That I couldn't tell you. Yes these truck are known for the cores. But the needle is weird
Sent from my iPhone using FRF App
__________________
2001 3.0 V6 Automatic "Police Interceptor" 4x4 Off-Road 3" Body Lift Belltech 6400 Shackles JBA Headers LOKRITE Locker COBRA disc conversion
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#5
01-22-2012, 03:22 PM
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Re: Temp. needle drops after turning off heater fan
Please run through my NO HEAT TROUBLESHOOTING GUIDE thread (Link below and in my sig). It will lead to you exactly where the problem is and you can fix it without guessing and replacing random parts. I don't think "these trucks are known for their cores". They don't fail or clog any more or less than any other vehicle on the road. It could be the core. And it could be numerous other things.
>>> http://www.fordrangerforum.com/how-s...ing-guide.html <<<
__________________
(Formerly) FireRanger 2003 Edge 4.0 4wd How to: Aux light wiring, relays, & fuses Info: 300+ intake threads here on FRF Info: HID Projectors How To: NO HEAT Troubleshooting Guide
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