Where is the oil coming from on spark plugs?

Asked by jamesc_c66 Jun 09, 2020 at 01:18 PM about the 2007 Lincoln Town Car Signature Limited

Question type: Maintenance & Repair

Received misfire code. Pulled plug to corresponding cylinder and found wet oil all over the plug. changed plugs and was fine for a day then misfire again. No visible signs of oil leakage from valve cover

1 Answer

Either it it coming from bad oil control rings or leaking valve guide seals. Try a hotter spark plug which will help reduce oil fouling. If the guy at the parts counter does not understand tell him you need plugs from a higher heat range. Old timers will know what you mean but the young guys may not.

2 people found this helpful.

Your Answer:

CarGurus Experts

  • #1
    Tracy Hooks
    Reputation
    3,560
  • #2
    Gene Arnett
    Reputation
    2,770
  • #3
    Bob Beaman
    Reputation
    2,360
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Ford Crown Victoria
3 listings starting at $8,960
Used Cadillac DTS
12 listings starting at $7,999
Used Chevrolet Impala
5 Great Deals out of 131 listings starting at $3,495
Used Chrysler 300
23 Great Deals out of 538 listings starting at $6,898
Used Lexus LS
30 listings starting at $5,995
Used Lincoln Navigator
9 Great Deals out of 313 listings starting at $18,909
Used Ford F-150
315 Great Deals out of 13,805 listings starting at $4,500
Used Chevrolet Corvette
28 Great Deals out of 765 listings starting at $15,900
Used Dodge Charger
33 Great Deals out of 901 listings starting at $5,995
Used Toyota Camry
50 Great Deals out of 1,123 listings starting at $784
Used Ford Mustang
38 Great Deals out of 1,626 listings starting at $8,995
Used Dodge Challenger
31 Great Deals out of 781 listings starting at $11,480

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.