Clicking Noise from Engine

[BigRed44]

I am guessing this might be something seriously wrong hoping not. I haven't had time to look farther but i do know it is not an exhaust leak or the fan hitting something. I get a click/knocking noise from the motor don't know if it is from the top or bottom end yet it was fine when i left home this morning and started after i had been driving a while (about 20 to 30 min ) then noticed it. didn't notice any loss of power. It does increase and decrease with RPM. Any Suggestions are welcome.

[Bow_Tied]

I presume you checked oil level.
Check for pending codes to see if it spark knock from bad gas. Hope it is somethign simple.

[BigRed44]

Checked the oil on my lunch is it is topped up it sounds like when you put a card in the spokes of a bike tire. and is coming from the top front of the engin. My guess right now is timing chain or guide.

[Adam]

Timing chain guides worn down. Very common on the vq35 and vq40. Better to repair sooner than later if this is the issue.

[BigRed44]

as long as it gets me home tonight the truck can sit for the next 3 months till it's warm enough for me to work on it. lots of fun

[the x kid]

Good luck Red. Maybe time for a diesel!

[BigRed44]

Depending on what i find wrong with it a diesel might be in the future especially if it is a cost effective chage vs new motor

[Miner]

Diesel torque is very addictive.

[Snafu]

Did it get you home?

[BigRed44]

nope it got home on the back of a flat bed the prognosis isn't good right now

[Adam]

That's not good. The timing guides usually don't just start all of a sudden, it kind of slowly starts getting louder, and it sounds more like a whining/rattling sound.

Good luck Man.

[BigRed44]

This one just gave way luckily no bent valves had to take it to Mike at Milton and have to send a Big thanks to him and his guys for getting it back on the road. But it turned out to be the timing guide and a few other warn out parts not bad for an engine that has over 240k. But happy it's back.

[Scotto]

You got very lucky, my friend!

[Snafu]

Good to hear luck was with you. Guess the mileage on the second belt should be a lot sooner than normal but I would not expect it to be that soon.

[BigRed44]

with this being a chain should last another 200k ish depending on the guides again. and yes got very lucky with out busting a whole lot of things.

[Snafu]

Oh, right. Second gen are chains. I am going to have to keep an ear open for clicking...none so far (touch wood)...around 170,000 miles