Tapping Noise- not Toyota tick

TomHouse · Mar 30, 2018

grivera[OP] initial post: ↑

My Taco has had a tapping noise for quite some time- it sounds like loose pebbles slowly bouncing around in the engine; it is more noticeable when the truck is in gear with the brakes applied and less noticeable after about 1500 rpm. It's more easily heard from within the cabin and almost completely goes away when the engine is at full operating temp. I took it to Toyota service last December when I had 35k miles. The tech diagnosed on his own and advised the tapping was normal.

Today, I took it in again (54k miles), for the tapping noise and the gas pedal recall. the complaint is exactly the same, except the sound is more noticeable. I parked the vehicle at the dealer last night and kept the key so I could meet the tech when the vehicle was first started. The techs both heard the tapping and said the sound wasn't normal. One of the techs (master tech) said it may be coming from the transmission area because it's not noticeable from outside of vehicle. He said he would use a stethascope once he got in a garage bay.

At about 4pm, the service consultant called and said when the tech took it inside, he couldn't duplicate the sound. He said I may have to pick it up before the night was done. He called back at closing time and said that if I could leave it overnight, they would try with a steathascope in the AM. I agreed.

I suspect that they didn't try the stethsacope today and merely stopped diagnsotics after they didn't hear it in the garage, but I can't prove it. I also suspect that they won't be able to find the source tomorrow- but I ramain hopeful. The service consultaant said that if the problem isn't found or is found and it's not a warranteed item, I have to pay $52 diagnostic fee, plus repair price. I already called Toyota Care and opened a case because I reported this issue while the truck was under 36k bumper to bumper and they said it was normal. I don't think I should have to pay at all because I reported the issue while it was under a full warranty and they ignored the problem.

Does my arguement seem reasonable?
Am I sol?
What could the tapping be?
Click to expand...

Did you ever figure this out? Mine's doing the same thing. Lots of these threads, but none that I've found so far have any resolution.

Adenzeno · Dec 8, 2018

Has there been an answer?

TomHouse · Dec 8, 2018

Well, I just traded mine in at a Subaru dealer and they gave it a clean bill of health (and a really good trade in value) so I got my answer, in a way.

07 sport 4x4 · Dec 8, 2018

TomHouse said: ↑

Well, I just traded mine in at a Subaru dealer and they gave it a clean bill of health (and a really good trade in value) so I got my answer, in a way.
Click to expand...

So, what’s the new vehicle?

TomHouse · Dec 8, 2018

2016 Subaru Outback. Baby on the way, needed a backseat. A little tired of having a truck as a DD anyway. Loving the Outback so far.

Fullboogie · Dec 8, 2018

You guys should check the vacuum switching valve for the vapor purge system. Lots of write ups in the 4Runner world about how/why this little thingy on the driver's side of the engine makes a heck of a lot of racket when it gets old.

Armkb · Dec 8, 2018

Sound like this?

https://m.youtube.com/watch?v=Xf6eA5kxe2k

Adenzeno · Dec 8, 2018

No, more of a metal on metal tap...

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Tapping Noise- not Toyota tick

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Tapping Noise- not Toyota tick

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07 sport 4x4 Well-Known Member

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