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2010 4.0 random tick on cold start

SuperCab

Moderator
Staff member
10,067
543
Montana
So my mom recently picked up a 2010 Explorer. Pretty nice, very low miles for the year. Around 70k I think. I was checking it out the other day and noticed on cold start (very cold, it was around 5°) there is a fairly loud tick or click noise. Pretty random interval... and seems to go away as soon as it starts to warm up. The thing has a partial warranty for the first month so just wanting to make sure it’s not serious.


 
Last edited:

CowboyBilly9Mile

Charter Member
7,118
444
USA
Something driven by the serp belt(?).
 

dustybumpers

don't play well w others
Exhaust manifold studs?

Remember, this is one of the cars that hit the news for carbon monoxide in the cabin.....
 

SuperCab

Moderator
Staff member
10,067
543
Montana
So it turns out it's the fan clutch... it's run electrically and unplugging it's plug can stop/cause the noise. Only does it intermittently so if it ends up failing at some point I'll try to remember to update this thread
 
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