2006 4.7 choking with one table spoon of water

[Yaff]

I guys,

I got my timing belt replaced about a month ago. I started to get random misfire codes on every cylinders a week ago.

Yesterday, I brought the T4R to the carwash. Hikes! Engine stalled as soon as the water jets hit the front.

I brought the truck to my mechanic friend. We spent the after noon trying to figure what kind of human error during the belt change process could be causing it.

We finally nailed the spot. (See attached picture)

We suspect the mechanic might have damaged the CamShaft positioning sensor/wiring or circuit as we are getting a OBDII P0345 code.

What do you think?

Picture - One table spoon of water poored in that crack (see arrow) kills the engine. Then it is very difficult to get it start. We also get P030(1to8) codes aka misfires.

 

[black4vcobra]

Unfortunately, since the codes took a few weeks to show up, I'd say it's a hard sell to get the dealer to fix the cam position sensor. When I replaced the timing belt on my truck a couple months ago we were getting a code for cam/crank correlation error but that is because we didn't line up the cam/crank pulleys the first time.

Idk why the engine would die from a bit of water splashing on the front of it. The only thing I can think of is there is a small black triangular shaped plastic piece that is supposed to be installed next to one of the timing covers. I think it's to prevent water from splashing where it isn't supposed to. It's easy to miss upon reinstallation, maybe the mechanic missed it

 

[emoore924]

So the obvious answer is "Stop pouring teaspoons of water in there" :lmao:

Har, ahem, ok, now to actually help...

Assuming that if you don't put water in there that all is well, why not squoosh a bit of the appropriate permatex gasket sealer or 3M silicone product in there to fill the gap so water doesn't get in? No water in there, problem solved!

 

[Yaff]

So the obvious answer is "Stop pouring teaspoons of water in there" :lmao:

Har, ahem, ok, now to actually help...

Assuming that if you don't put water in there that all is well, why not squoosh a bit of the appropriate permatex gasket sealer or 3M silicone product in there to fill the gap so water doesn't get in? No water in there, problem solved!

Here's a follow up question - When you do a close up on the picture - you can clearly see a gap and a misaligned rubber part. Could it be something as simple and stupid as a Timing Belt cover not properly put back in place?

My truck has been spending the week at the garage. The mechanic ordered a new camshaft position sensor and crankshaft position sensor. Apparently Toyota didn't ship the right sensors. I'm really upset as I'm quite convinced something went wrong when these guys replaced the timing belt.

Sigh... I'm supposed to get the truck back tomorrow. Can't wait.

 

[earthrealm]

timing belt horrors. sorry dude

 

[Yaff]

timing belt horrors. sorry dude

No f-beep-ing kidding...

I was on my way to the garage yesterday after a week waiting for my truck.

When I got a call from the supervisor. Euh, sir... The alternator just died, likely from soaking the engine bay with water to see if replacing the camshaft sensor solved the issue.... :trophy:

And because it's Friday PM - We'll keep it for the weekend... Talk to you Monday...

:frusty:Argh!

 

[Yaff]

Finally got my truck back today...

7 days later, towed twice, burnt alternator, camshaft position sensor replaced and $500+ hand and labor.

Here's the terminal of the so called defective camshaft position sensor.
No wonder it didn't like water... There is a big chunk of the plug missing. The connectors are exposed.

But it is all coincidences and have absolutely nothing to do with the timing belt service...

Whatever...

I'm just glad to have my baby back.

 

[emoore924]

That's been recently broken. Recently. JMHO.

 

[Yaff]

That's been recently broken. Recently. JMHO.

I'm sure it is. Just by the lighter color on the edges of the fragments.

The thing I'm not 100% sure is. Did he brake it during the timing belt service?
or while replacing it because it was "defective".

I lean toward the first option - Because it would also explain why it was so sensitive to water.

 

[Slowgoat]

Good God, man. What a nightmare. Glad you got it sorted out.

That is just dumb.

It's the small details.

What made the alternator take a crap? Pardon my ignorance, please.

 

[Yaff]

What made the alternator take a crap? Pardon my ignorance, please.

This one is a bit of a mystery. I had a reputable specialty shop to refurbish the alternator while the garage was servicing the timing belt. We don't know if its a refurbishing defect or because the mechanic hosed it during the water test. The refurbishing guys redid it under warranty. Garage still charged me for removing and reinstalling it though.

Both the regulator and the stator were fried. The alternator guys told me that water can fry a regulator but not the stator. The alternator must have run at full capacity for an extended period of time in order to melt the stator like it did.

I'm just repeating what I was told. I have no idea what I'm talking about