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2005 ford ranger 4.0 ticking at idle… fixed

RedRanger05

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I have a 2005 ford ranger with the 4.0 I have just over 200k. It’s started making a ticking sound recently. it’s usually at idle and most of the time it’s a quiet tick. recently I was sitting at idle in park and it was much louder than usual. I know these engines have noisy valve trains and I am well aware of the timing issues. Can anyone point me in the right direction for what’s causing the sound.
 


franklin2

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Is a 2005 SOHC? If it is, you know what the problem most likely is.
 

rusty ol ranger

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Get a mechanic stethoscope and start probeing. Its probably timing chain tensioners.

Or possibly exhaust manifolds leaking...but probably option 1
 

RedRanger05

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The sound was most prominent right in front of the exhaust manifold on the driver side
 

Uncle Gump

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IMHO... the 4.0L SOHC doesn't really have what I would call a noisy valve train.

From where you say the noise is coming from... it could very well be timing chain noise. Pull the driver side valve cover and have a look.
 

RedRanger05

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IMHO... the 4.0L SOHC doesn't really have what I would call a noisy valve train.

From where you say the noise is coming from... it could very well be timing chain noise. Pull the driver side valve cover and have a look.
I had it off a few months ago to replace the valve cover gasket and everything looked good and the chain was tight. I put a mechanics stethoscope up to it and it sounded more like it was coming from the spark plug.
 

Uncle Gump

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Well... at 200K it's hard to tell.

Have you changed the tensioners?

The oil pan comes off pretty easy. The amount of nylon trash in the pan will tell you the story.
 

RedRanger05

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Well... at 200K it's hard to tell.

Have you changed the tensioners?

The oil pan comes off pretty easy. The amount of nylon trash in the pan will tell you the story.
I have not changed the tensioners. I am thinking about doing that as well as plugs before I jump to timing issues. I had the pan off when I did the valve cover gaskets and it was clean.
 

RedRanger05

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I have a 2005 ford ranger with the 4.0 I have just over 200k. It’s started making a ticking sound recently. it’s usually at idle and most of the time it’s a quiet tick. recently I was sitting at idle in park and it was much louder than usual. I know these engines have noisy valve trains and I am well aware of the timing issues. Can anyone point me in the right direction for what’s causing the sound.
The sound turned out to be a spark plug. The gap was way off so I re gaped it and threw it back in till I get new plugs. Thanks for all the help and advice on the problem.
 

DILLARD000

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Good troubleshooting!
Still best to renew those 2 OilPressurized TimingTensioners every 80k~100kMiles, so you're 100kMiles overdue!
Likely a testament for a good habit of regular oil+filter changes.
 

RedRanger05

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Good troubleshooting!
Still best to renew those 2 OilPressurized TimingTensioners every 80k~100kMiles, so you're 100kMiles overdue!
Likely a testament for a good habit of regular oil+filter changes.
100% agree in the spring it’s getting a full tune up and that’s on my list. The oil change has been done in it every 3k miles when I had the valve cover off it looked mint.
 

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