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  #1  
Old 01-01-2011, 08:16 PM
woodsman1942 woodsman1942 is offline
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Default Another heater problem

Need any help I can get--have 98 Ranger s/c 4x2 3.o auto-cooling system has been flushed, air divertor door replaced, water pump replaced, Air is very hot on idle but gets cold when on road. When return to idle will get hot again--any answers?
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Old 01-01-2011, 09:32 PM
terryduanemiller terryduanemiller is offline
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Default Re: Another heater problem

did you flush heater core? both directions? really well?
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Old 01-01-2011, 09:54 PM
woodsman1942 woodsman1942 is offline
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Default Re: Another heater problem

Not for sure if they flushed both ways or not-was done at Ford Dealership. Could that cause it to get hot at idle and cool down on road?
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Old 01-01-2011, 10:06 PM
richarddhoward richarddhoward is offline
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Default Re: Another heater problem

If this happened just after a dealer flush, take it back, they are obligated to fix it.
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Old 01-01-2011, 11:03 PM
woodsman1942 woodsman1942 is offline
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Default Re: Another heater problem

I know but it was doing this before they flushed it. Someone told me that it could be an air lock and I needed to bleed the heater core-ever heard of anything like that?
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Old 01-01-2011, 11:09 PM
richarddhoward richarddhoward is offline
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Default Re: Another heater problem

Quote:
Originally Posted by woodsman1942 View Post
I know but it was doing this before they flushed it. Someone told me that it could be an air lock and I needed to bleed the heater core-ever heard of anything like that?
Never heard of bleeding a heater core, unless it's leaking. Otherwise there is a top coolant tube on your engine that may need to be bled.
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97 Ranger - 4.0 V6 auto, 4wd, 31x10.5x15s Wild Country XTX Sport All Terrains, Warn locking hubs, Pioneer deck with iPod attachment, Snugtop Topper, K&N filter, scan gauge II, Hella 500 Lights, More parts coming, waiting for the paycheck to get bigger!

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I think Henry just shit himself
Quote:
Originally Posted by Radness View Post
Its kind of like that carnival game "Whack A Mole" but with guns! Haha
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  #7  
Old 01-04-2011, 03:51 PM
pajero pajero is offline
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Default Re: Another heater problem

is the fan coupling faulty and the fan running continuosly?
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Old 01-04-2011, 11:29 PM
woodsman1942 woodsman1942 is offline
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Default Re: Another heater problem

today I flushed it and backflushed it using vinegar and hot water-when I finished it was hot, thot I had problem solved then drove around 6 miles and it went cold again. Every time I break the connection to the heater core it gets hot again then cools off. It's like something in the core is stopping circulation every time it gets hot.

----------

Do you mean the heater fan or engine fan? Both seem to be working properly.
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Old 01-05-2011, 12:06 AM
jason73 jason73 is offline
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Default Re: Another heater problem

replace ur thermostat! it could be ur demon! thats giving u problems or mabe you have a hose going the wrong way!
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Old 01-05-2011, 07:18 PM
woodsman1942 woodsman1942 is offline
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Default Re: Another heater problem

have already tried both thermostat and hose connection-talking it to radiator shop tomorrow. He said he has had 2 Rangers with the same problem this week and it takes a high pressure flush to fix it-will advise later. Wish me luck!
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Old 01-05-2011, 07:32 PM
terryduanemiller terryduanemiller is offline
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Default Re: Another heater problem

Quote:
Originally Posted by woodsman1942 View Post
have already tried both thermostat and hose connection-talking it to radiator shop tomorrow. He said he has had 2 Rangers with the same problem this week and it takes a high pressure flush to fix it-will advise later. Wish me luck!
Maybe the core is faulty, maybe its corroded/clogged enough to let small amount of coolant through.
or letting enough through that you visually see it when flushing..

if everything has been replaced or checked:
heater controls
water pump
thermostat
heater control valve
radiator flushed
core flushed

what else could it be? has to be a clogged core
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  #12  
Old 01-06-2011, 01:24 AM
jason73 jason73 is offline
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Default Re: Another heater problem

just change out the heater core its real easy and a new 1 is like $20 bucks i would try that 1st its cheper than taken it to a shop to flush it. / If u bypass the heater core is there any motor problems? If not just change the core out shouldnt take u more than a hour i changed mine out i coouldnt beleave how easy it was i thought it would be a pain all I needed was a philips screwdriver save yourself some money!
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  #13  
Old 01-06-2011, 07:31 AM
woodsman1942 woodsman1942 is offline
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Default Re: Another heater problem

I wish it were that simmple-They changed the pelnium in 97 or 98 now the whole thing has to be removed includig the dash.
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  #14  
Old 01-16-2011, 11:11 AM
1KOOL1 1KOOL1 is offline
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Default Re: Another heater problem

The problem will most likely be a stopped up radiator core. Run it long enough to get it warmed up, then cut it off & feel of the radiator core to see if it has hot & cold spots & if it does then get another radiator. Good luck.
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