Why is my 5.4L Triton roaring Off and on?

Asked by Montana_gal2 Jul 20, 2021 at 05:44 PM about the 2001 Ford F-150 Lariat Crew Cab 4WD SB

Question type: Maintenance & Repair

My 2001 F150 5.4L roars intermittently. It roars when I start it up until it
warms up. It roars off and on while driving down the hiway. And it roars more
often when the weather is hot. I lose a little power when it roars especially if I
am trying to accelerate at all. When it stops roaring and will smooth out, it is
nice and quiet with plenty of power. What in the world is causing this? Any
thoughts? I hope its just some solenoid or sensor!

5 Answers

F_O_R answered 3 years ago

Probably the fan clutch. This is normal.

1 people found this helpful.
Best Answer Mark helpful

F_O_R answered 3 years ago

It is working normally. The clutch engages the fan when the engine needs more air flow.

Mark helpful

Montana_gal2 answered 3 years ago

So I just have to tolerate the loss of power? Sometimes the loss isn't to noticeable but other times it is bad when I am trying to get into traffic on the onramp!

Mark helpful

F_O_R answered 3 years ago

Service the cooling system and maybe the fan will engage less often. Without an operating fan your engine will overheat and die.

1 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • Why is my 5.4L Triton roaring Off and on? 5 Answers

    My 2001 F150 5.4L roars intermittently. It roars when I start it up until it warms up. It roars off and on while driving down the hiway. And it roars more often when the weather is hot. I lose a lit...

    2001 Ford F-150 Lariat Crew Cab 4WD SB

    -

    Maintenance & Repair

  • 2007 5.4l triton knocking and ticking 3 Answers

    I have a 2007 Ford F150 Lariat Super Crew with the 5.4l V8 triton. I have replaced the cam phasers, oil pump, chains, guides and tensioners, as well as the coils and spark plugs. Also went to full s...

    2007 Ford F-150 Lariat SuperCrew 5.5ft Bed 4WD

    -

    Maintenance & Repair

  • 5.4l triton 3v cam 2 Answers

    Hi. Have a question on the cam of a 5.4l triton in a 2007 f150. I am having engine problems so I done a compression test and was attempting a leak down test. I got no compression on #8 cylinder. I ...

    Ford F-150

    -

    Maintenance & Repair

  • 2007 F150 - 5.4L Triton - #8 plug problems. 3 Answers

    Changing plugs on my 2007 F150, 5.4L Triton engine. , seems to have an obstruction keeping the plug socket from seating on the #8 plug (Driver Side furthest under the firewall). Any suggestion on h...

    2007 Ford F-150 Harley-Davidson

    -

    Maintenance & Repair

  • In my 99 f150 the battery light is on and something keeps killing the charge on my battery to the point where it shuts off any ideas why? 3 Answers

    about a month the battery light came on but caused no noticeable problems until earlier in the week. while driving the interior and exterior lights dimmed and went out then the truck shut off. I repla...

    1999 Ford F-150 Work 4WD LB

    -

    Maintenance & Repair

F-150

Looking for a Used F-150 in your area?

CarGurus has 13,848 nationwide F-150 listings starting at $1,712.

Postal Code:

Shortcuts

Search Ford F-150 Questions

CarGurus Experts

  • #1
    OJ
    Reputation
    42,600
  • #2
    Gene Arnett
    Reputation
    16,040
  • #3
    Rowefast
    Reputation
    15,890
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Silverado 1500
196 Great Deals out of 5,897 listings starting at $2,975
Used GMC Sierra 1500
129 Great Deals out of 6,505 listings starting at $3,975
Used Ford F-250 Super Duty
18 Great Deals out of 1,176 listings starting at $8,995
Used Toyota Tundra
34 Great Deals out of 1,356 listings starting at $6,255
Used Toyota Tacoma
47 Great Deals out of 1,068 listings starting at $9,998
Used Dodge RAM 1500
5 Great Deals out of 68 listings starting at $3,000
Used Ford Mustang
62 Great Deals out of 1,356 listings starting at $4,995
Used Ford Ranger
27 Great Deals out of 1,594 listings starting at $5,400
Used Chevrolet Silverado 2500HD
28 Great Deals out of 1,246 listings starting at $9,500
Used GMC Sierra 2500HD
25 Great Deals out of 1,514 listings starting at $5,500
Used Ford Explorer
71 Great Deals out of 2,072 listings starting at $3,995

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. Content will be removed if CarGurus becomes aware that it violates our policies.