Sudden horrible pinging (v6) - Page 3 - Toyota 4Runner Forum

jross20 · 04-04-2023, 07:36 AM

Quote:

Originally Posted by gamefreakgc

I suppose it could have been fake but not likely. Your LTFT looks normal, which is very odd. Pinging but fuel trims unaffected? That's a new one for me. I think the color might have been off on my last screen I looked at since now that I am home, the plugs look more brown than before. They looked stark white on the last screen I was using.

Let's keep going the easy route and run seafoam for a while. Was it here we mentioned Seafoam spray as well? It'll do what Seafoam in the tank is doing but a whole lot faster. I used to do that, 1/2 in the tank and 1/2 through the engine via a hose with vacuum. It really is a lot of fun.

I did finally find the seafoam spray version for less than $18 a can finally do I'll be doing that soon.

Can you know what? That's my specialty, encountering weird strange issues that don't make any sense... Lol.

But anyway, yeah like I was saying above we're currently writing on 87 and she's definitely behaving more than ever before... I mean I'm hesitant to say one can of seafoam helped that fast... So I'll definitely be doing the aerosol then we'll probably run another can through the tank as well.

brillo_76 · 04-04-2023, 08:14 AM

You be surprised on how seafoam cleans. It's sometimes very fast acting...

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Mendoncyclesmith · 04-04-2023, 01:27 PM

Quote:

Originally Posted by gamefreakgc

More than one of these 4Runners have blown out a spark plug.Your garage did the right thing and repaired the threads but it could happen to other cylinders if those threads are damaged as well.

Noted, thanks. They did pull and inspect the others, all seemed fine according to them.

Knock on wood, that was at least 3 years ago, so hoping all's well.

19963.4lsr5 · 04-04-2023, 01:33 PM

This is my cleaner of choice for intake degumming and combustion chamber decarbonizing.

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jross20 · 04-06-2023, 08:37 AM

Another day of no pinging from what I can tell. Going to try to do the aerosol seafoam treatment tonight.

I know that there's no point in doing it through the vacuum booster hose, where should I actually do it from?

brillo_76 · 04-06-2023, 09:07 AM

Quote:

Originally Posted by jross20

Another day of no pinging from what I can tell. Going to try to do the aerosol seafoam treatment tonight.

I know that there's no point in doing it through the vacuum booster hose, where should I actually do it from?

The intake throttle body. You get that sea foam hose in there and put intake hose back on. Get it running and spray it in there. It's easier with 2 people.

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19963.4lsr5 · 04-06-2023, 09:44 AM

My 96 and 97’s have two ports on the top of the throttle body that will have vacuum (ported vacuum) when the throttle plate is opened.

You need to give it throttle anyway.

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brillo_76 · 04-06-2023, 10:10 AM

Quote:

Originally Posted by 19963.4lsr5

My 96 and 97’s have two ports on the top of the throttle body that will have vacuum (ported vacuum) when the throttle plate is opened.

You need to give it throttle anyway.

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Those ports on the front or behind the throttle butterfly? I don't recall?

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19963.4lsr5 · 04-06-2023, 10:15 AM

Quote:

Originally Posted by brillo_76

Those ports on the front or behind the throttle butterfly? I don't recall?

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They are in front but as the throttle plate opens they are exposed to manifold vacuum.

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brillo_76 · 04-06-2023, 10:55 AM

Quote:

Originally Posted by 19963.4lsr5

They are in front but as the throttle plate opens they are exposed to manifold vacuum.

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Nice thanks...

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jross20 · 04-07-2023, 02:34 PM

Wait, so the two little right angle pipe looking things on top of the throttle body?

19963.4lsr5 · 04-07-2023, 03:22 PM

Quote:

Originally Posted by jross20

Wait, so the two little right angle pipe looking things on top of the throttle body?

Yep

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brillo_76 · 04-07-2023, 03:23 PM

Quote:

Originally Posted by jross20

Wait, so the two little right angle pipe looking things on top of the throttle body?

Yes. You can take those covers off and put a vacuum hose on it and attach the vacuum hose to the sea foam can and inject it that way. Making it a 1 person job instead of 2.

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19963.4lsr5 · 04-07-2023, 08:08 PM

You’ll still probably need to pinch the hose to control the flow so you don’t stall it.

That can I posted says to spray it into the TB at 1200-1500 rpm and when the can is almost done to stall the engine with it and let it sit 30min.

It is fun smoking out the neighborhood.

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jross20 · 04-09-2023, 09:58 AM

Quote:

Originally Posted by brillo_76

Yes. You can take those covers off and put a vacuum hose on it and attach the vacuum hose to the sea foam can and inject it that way. Making it a 1 person job instead of 2.

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I always wondered what those were for. Alright, cool. I wonder if the aerosol cans tube will fit in it.

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