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

Asked by Jan 22, 2013 at 07:37 AM about the 2001 Lincoln Navigator Base 4WD

Question type: Maintenance & Repair

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 because the e.g.r. pipe was directly in the way. Still sputtering and losing power going uphill. Need suggestions please

2 Answers

251,505

Do you have any check engine light? I don;t think changing 7 vs 8 would be the issue. But if you the misfire for some time before you changed them out you might have clogged the catalytic convertor. (unburnt fuel clogs the cats) Have it checked out by a local mechanic.

1 of 1 people found this helpful.
10

This is not the answer, cats are fine and misfire still on the same cylinder... Change the plug on the missing cylinder, run for ten minutes, after cooling (VERY IMPORTANT) remove the plug and examine. if the sparkplug is totally clean, not even a burnt fuel smell, your injector is bad ! Change it and you'll be gravy :-)

1 of 1 people found this helpful.

Your Answer

Lincoln Navigator Experts

  • #1
    jimmyarango
    Reputation
    1,510
  • #2
    T_S_T
    Reputation
    430
  • #3
    dandyoun
    Reputation
    320
View All

Related Models For Sale

Used Ford Expedition
373 Great Deals out of 21,625 listings starting at $1,500
Used Cadillac Escalade
215 Great Deals out of 11,051 listings starting at $2,900
Used Chevrolet Tahoe
640 Great Deals out of 37,136 listings starting at $1,800
Used Chevrolet Suburban
283 Great Deals out of 20,744 listings starting at $1,000
Used GMC Yukon
425 Great Deals out of 20,847 listings starting at $2,495
Used GMC Yukon XL
227 Great Deals out of 13,113 listings starting at $1,495
Used Ford Explorer
799 Great Deals out of 62,848 listings starting at $999
Used Ford F-150
2,153 Great Deals out of 181,813 listings starting at $1,000
Used Dodge Durango
262 Great Deals out of 20,311 listings starting at $999
Used Toyota Sequoia
133 Great Deals out of 5,292 listings starting at $2,695

Used Cars For Sale

2015 Lincoln Navigator Base 4WD For Sale
92 listings starting at $31,900
2014 Lincoln Navigator Base 4WD For Sale
96 listings starting at $23,995

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.