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still not much heat

  #1  
Old 12-04-2018
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still not much heat

so i checked everything still not much heat i mean itll heat up some but not like its pose to any thoughts
 
  #2  
Old 12-04-2018
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50/50 coolant/water mix?
 
  #3  
Old 12-04-2018
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Ron, just in case you missed it, this is the same guy here.

https://www.ranger-forums.com/2-3l-2...sudden-156080/

And my two cents...
It's not a blend door issue, because the truck is 94, so if both hoses to the core are not hot, then there is no flow.
There has to be a tap that's controlled by the dash controls to allow coolant to flow.
The tap could be broken internally even though it appears to work.
The mechanical part that controls the tap may be broken, eg a vacuum problem assuming that it's controlled by vacuum.

About the heater core, you took it, how did you test it jaxx ?

Just hooking it up to a garden hose is not a good test.
That's because most of it can be blocked and still allow the water from the hose to flow freely giving a false assumption that it isn't blocked.

A good test when out of the truck is to take some old hoses and hook it up with the hoses in the "up" position.
Pour boiling water until it just reaches the top of the other hose _ the core should feel hot all over.
 

Last edited by Jeff R 1; 12-04-2018 at 02:31 PM.
  #4  
Old 12-04-2018
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1994 won't have a valve on the heater hose, its the water pump by pass, so heater core gets coolant flow all the time, no way to shut it off
 
  #5  
Old 12-04-2018
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yessir i relize that but still no heat
 
  #6  
Old 12-04-2018
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Originally Posted by RonD View Post
1994 won't have a valve on the heater hose, its the water pump by pass, so heater core gets coolant flow all the time, no way to shut it off
No valve, no blend door, what controls the heat ?
How is the heat adjusted, has to be a way ?

There would be valve if the truck had air conditioning and I've come across that problem where the valve shuts the coolant flow off, assuming the truck has air-con.
 
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Old 12-04-2018
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1994 has a cable operated Blend Door, you can adjust the cable and blend door by folding down glove box all the way
1995 and up got the electric blend doors

No MAX AC cutoff valve either on 1994, I have AC on my 1994, just 2 heater hoses, one to water pump and the other to upper intake by thermostat
 
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Old 12-04-2018
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Originally Posted by jaxx View Post
yessir i relize that but still no heat
Are the heater hose getting hot?
BOTH of them

If they are not hot then problem is not in the cab

And whats the outside temp at the coldest where you live?
Don't know where FITZGERALD is
 
  #9  
Old 12-05-2018
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Have you burped the cooling system recently?

if you've got an air pocket in the heater core you won't get heat.
 
  #10  
Old 12-10-2018
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what would you say to a smaller radiator
 
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Old 12-10-2018
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I would say no, radiator is for EXTRA heat, if upper hose isn't getting hot then radiator is not being used because there is no EXTRA heat, in the summer that may be a different story.

But for now thermostat is closed as it should be to keep coolant above 190degF, if engine can't get coolant that hot then reduce air flow around the engine, i.e. cardboard in front of radiator, this is not for radiator, its for air flow around engine sucking away its heat
 
  #12  
Old 12-10-2018
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im saying my origanal one blew up ;got another one and it was a bigger one
 
  #13  
Old 12-10-2018
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what would cause engine not to get coolant
 
  #14  
Old 12-10-2018
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Like RonD remarked in your other thread,

Is your fan belt properly routed


 
  #15  
Old 12-10-2018
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and shouldnt there be pressure like when you take the rad cap off,mine runs for hrs and i can take the rad cap off with no pressure
 
  #16  
Old 12-10-2018
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What's the weather like where you are?

That 2.3 is a cold running engine, and if the outside air temp is low enough it won't get very warm.

The one I had many years ago would never get warm once the air temp was into the mid 40's or lower, even after a 30 minute drive down the interstate.

When I really needed the heater, I didn't have one.

A piece of cardboard blocking the radiator did help.
 
  #17  
Old 12-11-2018
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it gets like 30s but my mom has a ranger and the heat will run you out of it
 
  #18  
Old 12-11-2018
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Originally Posted by jaxx View Post
it gets like 30s but my mom has a ranger and the heat will run you out of it
Does she have the 2.3 ?
 
  #19  
Old 12-11-2018
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yessir
 
  #20  
Old 12-11-2018
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What's the temp rating on the thermostat you installed ? needs to be the 192 or 195

If you used the 160 you'll never get heat, and in the winter time the 180 won't be any good either.
 
  #21  
Old 12-11-2018
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195 sir
 
  #22  
Old 12-11-2018
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All that's left that I can think of.

1. Defective thermostat - opening to soon or stuck open
2. Wrong thermostat - to small of diameter, allowing coolant to get past it
3. Thermostat housing not holding thermostat tight against the block - allowing coolant to get past it
 

Last edited by 2011Supercab; 12-11-2018 at 04:35 AM.
  #23  
Old 12-17-2018
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Have you had your heater core tubes off recently? I've seen accumulations of rust build up in those or even the heater core.

have you flushed your heater core recently??

grab a hose take off both hoses and back flow some water through there until it runs clear. A clean heater core makes good heat. A clogged one dosent.
 
  #24  
Old 12-17-2018
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Originally Posted by Bonexsam View Post
Have you had your heater core tubes off recently? I've seen accumulations of rust build up in those or even the heater core.

have you flushed your heater core recently??

grab a hose take off both hoses and back flow some water through there until it runs clear. A clean heater core makes good heat. A clogged one dosent.
OP's problem is engine isn't getting warm enough
 
  #25  
Old 12-22-2018
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Just a thought....
My 93 runs cold, so does the 89. I've heard from others, that they all do. Even with the 195 stat, it shows cold on the gauge.
I'm thinking of putting on an electric fan and toss the mechanical one. 16" fan kits, with thermostatic switching, are available on Ebay for less than 50 bucks. A simple toggle switch on the dash can overide the thermo switch for more precise control.
(less noise too) Bonus!
 
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