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  #1  
Old 03-02-2011, 05:31 AM
reaper reaper is offline
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Default new parts but still over heating

i recently replaced water pump, t-stat, single belt, tensioner assembly and new hoses. I flushed the radiator and inspected the outer core for any blockage. It's still running HOT !! I have no water in oil or vice versa. Any ideas ?
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  #2  
Old 03-02-2011, 09:39 AM
rcmustang rcmustang is offline
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Default Re: new parts but still over heating

Have you checked the fan/clutch?
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Old 03-02-2011, 10:04 AM
reaper reaper is offline
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Default Re: new parts but still over heating

thanx. I failed to mention I have replaced the fan clutch as well
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Old 03-02-2011, 10:15 AM
pooleo pooleo is offline
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Default Re: new parts but still over heating

do you have heat
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Old 03-02-2011, 10:17 AM
FireRanger FireRanger is offline
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Default Re: new parts but still over heating

Well it sounds like you're replaced pretty much everything. So can you elaborate on "It's running hot". Describe the symptoms in detail please.
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  #6  
Old 03-02-2011, 01:56 PM
BrandonA BrandonA is offline
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Default Re: new parts but still over heating

you did remeber to put the antifreeze/coolant back in after you flushed the radiator fluid right?
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  #7  
Old 03-02-2011, 02:38 PM
reaper reaper is offline
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Default Re: new parts but still over heating

LOL ! Yes I did remember to replace the coolant. My dash gauge reads that I'm a little over half way between cold and hot . I pointed my infrared gun at top hose and I only get a reading of 175 degree. I don't know if this is the correct way to get a good temp reading or not ... my thoughts were that the temp sending unit may not be working correctly, but if I turn on the heat, the temp drops.
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Last edited by reaper; 03-02-2011 at 02:57 PM.
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Old 03-02-2011, 02:42 PM
klinger86 klinger86 is offline
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Default Re: new parts but still over heating

what temp thermostat did you get.. there are aleast 2 that i know of... one runs 190 degrees and the other i think runs around 210 degrees.
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Old 03-02-2011, 03:42 PM
FireRanger FireRanger is offline
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Default Re: new parts but still over heating

Quote:
Originally Posted by reaper View Post
LOL ! Yes I did remember to replace the coolant. My dash gauge reads that I'm a little over half way between cold and hot . I pointed my infrared gun at top hose and I only get a reading of 175 degree. I don't know if this is the correct way to get a good temp reading or not ... my thoughts were that the temp sending unit may not be working correctly, but if I turn on the heat, the temp drops.
That sounds like it is reading normal to me. Operating temperature is 190. A heat gun showing 175 on a hose also sounds perfectly normal. I don't think you have a problem at all.
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Old 03-02-2011, 06:51 PM
oldcarfart oldcarfart is offline
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Default Re: new parts but still over heating

Quote:
Originally Posted by reaper View Post
LOL ! Yes I did remember to replace the coolant. My dash gauge reads that I'm a little over half way between cold and hot . I pointed my infrared gun at top hose and I only get a reading of 175 degree. I don't know if this is the correct way to get a good temp reading or not ... my thoughts were that the temp sending unit may not be working correctly, but if I turn on the heat, the temp drops.
Where did you expect to see gauge reading? The vehicle is normal, stop listening to your local experts. Enjoy your truck.
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Old 03-02-2011, 07:42 PM
pooleo pooleo is offline
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Default Re: new parts but still over heating

the temp should drop when the heat is turned on since its blowing the warmth from the cooling system via the heater core. I have a mechanical temp gauge and it reads 185 then turn the heat on high and it drops to 160. It will rebound after a short time.

As long as you have heat then the coolant is circulating, at least thru the heater core. I would let it warm up, then grab the top and bottom hose. They both should be hot/warm. Also see if you can get your hand on the radiator to feel for hot and cold spots. This will tell you if you are circulating properly. So, if no leaks, no oil/coolant combos, good circulation and good heat and its still overheating I would take it to a shop and have them test for exhaust gas in the coolant. Its very cheap and they might do it for free. If that passes and it still overheats, then it has to be going into the cylinder(s) and just going out the exhaust.
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Quote:
A Gladiator does not fear death. He embraces it. Caresses it. Fucks it. Each time he enters the arena, he slips his c0ck in the mouth of the beast, and prays to thrust home before the jaws snap shut. - Oenomaus
Ball Joints/Upper A-Arms How To
Replace Door pin/bushing
Repair broken dome light tabs
VIDEO OHC Install
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  #12  
Old 03-02-2011, 07:50 PM
rcmustang rcmustang is offline
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Default Re: new parts but still over heating

You could have an air pocket near the sensor or a bad sensor/bad connection/wiring resistance.
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  #13  
Old 03-03-2011, 12:32 AM
FireRanger FireRanger is offline
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Default Re: new parts but still over heating

Quote:
Originally Posted by rcmustang View Post
You could have an air pocket near the sensor or a bad sensor/bad connection/wiring resistance.
No he doesn't. It's reading normal. And the heat gun is reading normal. There's nothing wrong with it at all.
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How to: Aux light wiring, relays, & fuses
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  #14  
Old 03-03-2011, 04:16 AM
reaper reaper is offline
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Default Re: new parts but still over heating

thanx to all of you for your time and input. I rely on my truck so I want it to run and perform at it's best.
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