3.4 engine ticking noise

New ticking noise just appeared. This was never present until a day ago. Most say it’s just a “Toyota tick”. I’d say that is the case, but this just popped up for the first time ever on this truck. 189k on odo. New spark plugs and oil change. Never overheated and no check engine lights. Thoughts ? Also seems to only show when engine is warm.
https://youtu.be/P_87-9fMddk

 

What are your fuel trim #s ?

 

It doesn't sound as bad as the one in the first video.

This is bad.

https://youtu.be/G58WW0768-A

This is good.

https://youtu.be/14VqqPiTlTc

 

What does that mean? Sorry noobish

 

Did you fix yours ? Should I not worry? Just freaking out because it’s new. Woke up one morning and it appeared

 

I replaced the engine in mine at 225,000 miles. It had a morning death rattle. The previous owner neglected the cooling system and let it run too hot. Mine sounded like bad wrist pins.

The PO replaced the heads, water pump, and radiator in an attempt to fix this issue before giving up and trading off the truck. I would probe around with a mechanics stethoscope to determine if the noise is from down deep or near the valves or an exhaust manifold tick that goes way when warm. IMHO - yours didn't sound that bad.


If it is a serious engine problem, it will get worse over time.

 

Fuel trim #s are the air fuel ratios used to indicate a lean or rich fuel to air mix.
An OBD11 scan tool is needed to read fuel trims.

 

Sounds like an exhaust leak

 

Potentially it could be tb/wp?

 

+1 - Screwed up fuel trims can come from counterfeit injectors and MAFs that seem to be on the rise.

 

They don't make a knocking noise. Also, the 3.4L is a non-interference engine. So if the belt breaks, no engine damage. It just stops running.

 

Ok, this is weird, I am driving the truck and I feel like it may have misfired or something. Something didn’t feel right. Ticking sounds alittle bad and I swear first and second gear it felt like the truck almost died... no check engine light

 

Tell us about your truck. Mileage, area, previous owner, any maintenance history.

 

Found at Harbor Freight or any parts store. Helps pinpoint the location.

 

3.4 4x4 manual 189k on odo just replaced spark plugs a couple weeks ago. Central coast of California. Not to hot or cold. Never overheated never heard a tick at all, clutch is making a weird noise under the truck while driving . Oil changes regularly

 

I’ll keep updated, wouldn’t all this make a check engine light go off?

 

I guess you used OEM spec dual tip Denso or NGK?

 

I would think a misfire would.. But I haven't experienced a misfire yet.

 

Oem from Toyota dealership dual tip

 

When you first turn the key on does your Check Engine Light come on like all the other lights before starting engine? Does the Check Engine Light stay on after starting engine and stay on while driving? Have you ever seen the Check Engine Light flashing while driving?