4.0L SOHC 2010 Ranger making noise when idling


Joined
Aug 21, 2026
Messages
2
Points
1
City
Barrie
State - Country
ON - CAN
Vehicle Year
2010
Vehicle
Ford Ranger
Drive
2WD
Engine
4.0L
After looking forever finally bought a 2010 4l ford ranger sport!!

Like buying any used car at this age some quirks are slowly starting to reveal themselves. My main concern is that the truck seems to be making this vibrating/ticking sound as it idles. I first noticed in a drive thru with the window down when I had my foot on the brake and have continued to notice the sound mainly when idling at a red light. Shifting into neutral and park the sound completely disappears.

Its got around 120k miles and everything else seems to be running smoothly going to take it into a shop soon but after being on enough forums starting to freak that it could have anything to do with timing chain…
 
Hello Mr surprise Pikachu.

Auto or manual?

Also, timing chain tensioners on the late engines are nbd. I just did mine. Again.

Get motorcraft ones from a dealer and make sure you order the gasket washers.

Preload them like a hydraulic lifter (pump them up submerged in a jar of fresh oil first, they will get rock hard) and install. Back one is super easy if you take the passenger wheel of. Front one... eh. You can sneak it out if you really want to. Taking the intake off is easier.

I'll give you the parts list if you're going to do it. At 150k I would.
 
Automatic.

Appreciate the write up! Sounds like a job I can handle once I’ve got a free weekend and the weather cooperates. Passenger wheel off for the back one and the intake off for the front, noted.
I’d love the parts list whenever you get a minute.

Thanks again.
 
Automatic.

Appreciate the write up! Sounds like a job I can handle once I’ve got a free weekend and the weather cooperates. Passenger wheel off for the back one and the intake off for the front, noted.
I’d love the parts list whenever you get a minute.

Thanks again.
Lists are all over here, but the explorer forum guys are where I got my info.

I did injectors and injector cups, knock sensor, tensioners, plugs and wires, O2 sensors, MAF, and tps all at the same time. You will need an upper intake gasket set as well. I like FelPro or Victor Reinz. Mahle is the OG stuff. Great if you can find it. They make a lot of parts for Ford.

Would recommend same if you're keeping the truck. Injectors on mine were night and day difference. If you do them, spend the coin for flow matched ones. Worth every penny. Buy from someone reputable, not ebay.

Big thing is, stick to Motorcraft parts. Cannot stress that enough. Aftermarket is ass, no polite way to say it. Rockauto is a good source. Use your dealer for the tensioners tho. Avoid Amazon for mission critical stuff. Too many counterfeits.

If all goes well, it's a days work. Don't drop stuff into your intake valves.

If the truck is new to you, run a can of LiquiMoly intake valve cleaner and a bottle of Techtron or Jectron to blow crap out of your lines, one tank after another, then change oil and fuel filter. SOHC likes Amsoil OE 5w30, a lot. Send current oil out for a blackstone report if you're feeling frisky. They found my injector problems for me.

Oil additives don't do much good, and engine flushes can eat the rubber check valves in your tensioners (ask me how I know 🙂). Run MOS2 if you're determined to put an additive in. Seems to do the least harm.
 
After looking forever finally bought a 2010 4l ford ranger sport!!

Like buying any used car at this age some quirks are slowly starting to reveal themselves. My main concern is that the truck seems to be making this vibrating/ticking sound as it idles. I first noticed in a drive thru with the window down when I had my foot on the brake and have continued to notice the sound mainly when idling at a red light. Shifting into neutral and park the sound completely disappears.

Its got around 120k miles and everything else seems to be running smoothly going to take it into a shop soon but after being on enough forums starting to freak that it could have anything to do with timing chain…
One other thing you can try before digging deeper... Valvoline Restore and protect oil seems to do ok for clearing goop. Awaiting my labs right now on first run.

Also, what I posted probably won't fix a tick, unless it's an injector.

What kind of tick do you have going on
 

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