How do i fix this gas knock

Asked by bigdonsf150 Nov 20, 2020 at 09:02 AM about the 2001 Ford F-150

Question type: Maintenance & Repair

My 2001 f150 will give me a bad
gas knock unless i use premium
gas. Put mid grade or regular in it
and youll go no where. She runs
great on premium like nothing is
wrong. Should i leave well enough
alone? She has 289k miles

1 Answer
74,240

OJ answered 3 years ago

I'd try a different brand of fuel first. If that doesn't do it, try ethanol free fuel at 87 octane. You can then try having the engine scanned for malfunctions. At 289K, the engine it getting long in the tooth as well as being 20 years old. Personally, If nothing else helps, keep using premium fuel until it gives out. Then it is decision time. A re-manufactured engine or the price of another truck. I take it for granted the engine has been tuned with new plugs, etc. recently.

Mark helpful

Your Answer:

Related Questions

  • How do i fix this gas knock 1 Answer

    My 2001 f150 will give me a bad gas knock unless i use premium gas. Put mid grade or regular in it and youll go no where. She runs great on premium like nothing is wrong. Should i leave well enou...

    2001 Ford F-150

    -

    Maintenance & Repair

  • How do I fix this problem 1 Answer

    I'm having a problem with my truck the windshield wipers didn't work so I took the motor off of the truck and there is a ground wire that runs to the bolt that holds the motor on the truck I broke ...

    1989 Ford F-150 S Standard Cab 4WD LB

    -

    Maintenance & Repair

  • when I press the pedal its not in tuned with engine.. very soft it does nothing with the engine ? How do I fix this ? 11 Answers

    How do I fix this? thanks.

    1977 Ford F-150

    -

    Maintenance & Repair

  • How do I fix Gear issue? 1 Answer

    Have an 84 f150 with 3 speed granny gear tranny third gear is out and don't know how or why or how to fix it

    1984 Ford F-150

    -

    Maintenance & Repair

  • theft system how do I bypass this 1 Answer

    Can't start my truck I took out a old battery an put a new one in now it isn't letting me start my truck lights blinking horn blowing an I just have one key

    2013 Ford F-150 XL SuperCab 4WD

    -

    Maintenance & Repair

Shortcuts

Search Ford F-150 Questions

CarGurus Experts

  • #1
    OJ
    Reputation
    42,490
  • #2
    Gene Arnett
    Reputation
    16,040
  • #3
    Rowefast
    Reputation
    15,860
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Silverado 1500
183 Great Deals out of 5,880 listings starting at $2,975
Used GMC Sierra 1500
143 Great Deals out of 7,101 listings starting at $3,950
Used Ford F-250 Super Duty
24 Great Deals out of 1,197 listings starting at $7,995
Used Toyota Tundra
32 Great Deals out of 1,157 listings starting at $8,500
Used Toyota Tacoma
56 Great Deals out of 1,044 listings starting at $8,708
Used Dodge RAM 1500
5 Great Deals out of 69 listings starting at $4,000
Used Ford Ranger
20 Great Deals out of 1,507 listings starting at $2,888
Used Ford Mustang
53 Great Deals out of 1,255 listings starting at $4,995
Used Chevrolet Silverado 2500HD
21 Great Deals out of 1,272 listings starting at $9,990
Used GMC Sierra 2500HD
18 Great Deals out of 1,632 listings starting at $11,900
Used Ford F-350 Super Duty
37 Great Deals out of 2,594 listings starting at $8,888

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.