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Old 03-02-2012, 01:11 PM   #1
BEDAGGETT
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98 5.4 lt rlincoln navigator heater issue

I have a 98 5.4 litr navigator replaced thermo, flushed, filled, gttn rdy to back fluch, hoses dont get hot neither does engine temp any guesses, just started blowing semi warm air
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Old 03-02-2012, 03:41 PM   #2
DeltaP
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Re: 98 5.4 lt rlincoln navigator heater issue

You probably need to purge the air out of the cooling system.
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Old 03-02-2012, 04:52 PM   #3
BEDAGGETT
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Re: 98 5.4 lt rlincoln navigator heater issue

WE HAVE TRIED THAT TO SEVERAL TIMES, I FORGOT TO MENTION NO OVERHEATING OR LEAKING EITHER. I SAW A SITE THAT SAID SOMETHING ABOUT A METAL HOSE LEADING FROM BACK OF ENGINE TO WATER PUMP COULD THIS BE IT CAUSING MY PROBLEMS
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Old 03-02-2012, 05:17 PM   #4
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Re: 98 5.4 lt rlincoln navigator heater issue

New thermostadts have been know to be bad out of the box. Sounds like its stuck open
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Old 03-02-2012, 06:08 PM   #5
BEDAGGETT
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Re: 98 5.4 lt rlincoln navigator heater issue

Put 2 different ones in 1st buy me 2nd buy mechanic
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Old 12-28-2012, 11:59 AM   #6
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Re: 98 5.4 lt rlincoln navigator heater issue

Quote:
Originally Posted by BEDAGGETT View Post
I have a 98 5.4 litr navigator replaced thermo, flushed, filled, gttn rdy to back fluch, hoses dont get hot neither does engine temp any guesses, just started blowing semi warm air
Does it have rear heat? You have a door in the dash the separates cold and hot. Mine is stuck on hot yours could be stuck on cold! Common problem on older navi's and expeditions. YouTube it.... Good luck hope this helps
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