check engine light just came on, previous owner said that it only came on after it was serviced, what do you think could be the problem.


Asked by Feb 21, 2014 at 02:01 AM about the 2006 Lincoln Navigator Ultimate 4WD

Question type: Maintenance & Repair

I just purchased this vehicle a few days ago and when I looked at it the check engine light was on, so the previous owner said that they had it serviced and since the service the light came on, they then took it back to the shop and the mechanic said that he changed the spark plugs and then the light went out.  I put about 500 kms on since and now the light is back on.  Any ideas.

4 Answers


they might not have reset the light. disconnect the battery to reset the codes and see if it comes back on.


Please post the trouble codes here and we can help. Advance and Autozone auto parts stores will scan your computer for free and give you the codes. HTH. - Jim

1 out of 1 people think this is helpful.



I have a 2001 Lincoln Navigator. The code is P0174.

Your Answer

Add photo

Related Questions

  • How to change the check engine light in the 1998 navigator 14 answers

    How to change the check engine light in 1998 navigator

    1998 Lincoln Navigator 4 Dr STD 4WD SUV


    Maintenance & Repair

  • how to defeat check engine light 2 answers

    I have a misfire at #8 cylinder due to low compression. I have replaced the coil and spark plug three times despite the fact the plug was not dirty or fouled. I just want to dispense with the dash war...

    2001 Lincoln Navigator Base


    Maintenance & Repair

  • A lot of problems with this vehicle 7 answers

    Bought in 2009 with 98,000 mi. In 2010 had a tune up done which cost me $1200. In 2011 had something wrong with the front tire bearings replacement cost me $800. In 2012 the suspension went out that...

    Lincoln Navigator


    Maintenance & Repair

  • Why 2001 navigator have engine problems after changing 7 ignition coils and spark plugs. 2 answers

    5.4 intech motor.Why does a 2001 navigator have engine problems after changing 7 ignition coils and spark plugs. in the motor.. The diagnostic read that only #6 was misfiring. I could not access #8 be...

    2001 Lincoln Navigator Base 4WD


    Maintenance & Repair

  • what would cause antifreeze to get into engine cooling fan fluid reservoir? 5 answers

    I just bought a 2001 lincoln ls and it has antifreeze in the engine cooling fan fluid reservoir any ideas what would cause this? I was thinking maybe previous owner put antifreeze in the wrong reser...

    2001 Lincoln LS V6


    Maintenance & Repair


Looking for a Used Navigator in your area?

CarGurus has 6,054 nationwide Navigator listings starting at $1,999.


Search Lincoln Navigator Questions

Lincoln Navigator Experts

#1 jimmyarango
Reputation 1,300
#2 T_S_T
Reputation 350
#3 dandyoun
Reputation 260
View All

Related Models For Sale

Used Ford Expedition"
576 Great Deals out of 21,250 listings starting at $2,111
Used Cadillac Escalade"
370 Great Deals out of 11,119 listings starting at $2,999
Used Chevrolet Tahoe"
1,070 Great Deals out of 36,516 listings starting at $1,695
Used Chevrolet Suburban"
640 Great Deals out of 24,225 listings starting at $2,000
Used Cadillac Escalade ESV"
175 Great Deals out of 6,079 listings starting at $2,995
Used GMC Yukon"
551 Great Deals out of 14,638 listings starting at $1,500
Used Ford Explorer"
1,314 Great Deals out of 70,872 listings starting at $985
Used Ford F-150"
3,145 Great Deals out of 215,323 listings starting at $1,000
Used GMC Yukon Denali"
31 Great Deals out of 4,623 listings starting at $6,900
Used Nissan Armada"
143 Great Deals out of 6,287 listings starting at $3,900
Used Lincoln Aviator"
10 Great Deals out of 353 listings starting at $1,995
Used Infiniti QX56"
134 Great Deals out of 1,965 listings starting at $4,995
Used Toyota Sequoia"
160 Great Deals out of 6,622 listings starting at $2,977
Used GMC Yukon XL Denali"
199 Great Deals out of 7,523 listings starting at $3,500
Used GMC Yukon XL"
228 Great Deals out of 6,735 listings starting at $2,495

Used Cars For Sale

2017 Lincoln Navigator For Sale
1,391 listings starting at $60,548
2016 Lincoln Navigator For Sale
14 Great Deals out of 1,522 listings starting at $40,988
2015 Lincoln Navigator For Sale
22 Great Deals out of 565 listings starting at $32,987
2014 Lincoln Navigator For Sale
9 Great Deals out of 160 listings starting at $22,980
2013 Lincoln Navigator For Sale
25 Great Deals out of 350 listings starting at $19,999