2003 Lincoln Navigator overheat

Asked by Ladyshooter Jul 15, 2019 at 12:06 PM about the 2003 Lincoln Navigator

Question type: Maintenance & Repair

I have a 2003 Lincoln Navigator with 104k miles on
it.  It was 95 degrees so I turned on the air, after
driving about 20 minutes my check engine temp
came on.  I glanced over and it was in normal
range.   I continued to drive it, I was less than 5
min from home.  I got stopped at a light, idling my
temp gauge went into red.  When I started to
accelerate the temp gauge when down some.  Had
it taken to a mechanic wanted to charge me 6k
said it had blown head gasket.  Had it towed to a
different mechanic so far he has replaced clutch
fan, new plugs, new thermostat.  It won’t over heat
idling but when driving after about 20 minutes with
air on.  Today he put a gauge on it to check
radiator pressure he said was at 14.  Any ideas? I
can’t have someone keep guessing at this.  

1 Answer

1,115

From the description, you had your thermostat replaced. This involves replacing the coolant. Whoever replaced the coolant did not properly bleed the air out of the system so you have an air bubble trapped some where. One test is when you notice your temperature climbing, stop and park. In park hold the accelerator down a bit to keep the RPM between 1000 and 1500. After a minute or so the temperature should drop. If so, then it’s an air bubble in the cooling system and system just needs bleeding.

Your Answer:

CarGurus Experts

  • #1
    jimmyarango
    Reputation
    2,340
  • #2
    kbro
    Reputation
    950
  • #3
    Gene Arnett
    Reputation
    890
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Ford Expedition
23 Great Deals out of 821 listings starting at $7,888
Used Cadillac Escalade
21 Great Deals out of 376 listings starting at $6,900
Used Lincoln Aviator
9 Great Deals out of 455 listings starting at $32,490
Used GMC Yukon
16 Great Deals out of 929 listings starting at $1,225
Used Chevrolet Tahoe
24 Great Deals out of 911 listings starting at $11,900
Used Chevrolet Suburban
10 Great Deals out of 550 listings starting at $7,500
Used Cadillac Escalade ESV
6 Great Deals out of 128 listings starting at $12,995
Used GMC Yukon XL
14 Great Deals out of 683 listings starting at $13,950
Used Ford F-150
321 Great Deals out of 14,968 listings starting at $1,712
Used Toyota Sequoia
4 Great Deals out of 69 listings starting at $16,489
Used Lexus GX
3 Great Deals out of 54 listings starting at $13,800
Used Ford Explorer
86 Great Deals out of 2,065 listings starting at $2,999

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.