What have you done to your Tacoma today? 1st Gen Edition

Find the backside of something similarly sized, like a 3.5in hole saw. Most of this stuff can be done just as well with a little ingenuity and some rinky dink shit from the garage haha. I used a 22mm socket and an old crossmember nut and bolt the other day as a jig/press to fix a dished coil bucket hole. Just cranked on the bolt as it was run through the socket and hole so it would press it flat.

 

Yeah I thought of a hole saw, but they're mucho expensive for one that big lol. I'll keep an eye out for something cheap - maybe a good piece of pvc like a plug.

http://www.homedepot.com/p/4-in-PVC-DWV-MIPT-Cleanout-Plug-C4818HD4/100344823

Even better - local in stock:

https://www.lowes.com/pd/4-in-dia-PVC-Cleanout-Plug-Fitting/3130797

Thanks man I was about to just make a hack move. Motivation back up to a good level lol!

 

So I've got the PO420 code Where should I start looking to diagnose?

 

Google? LOL jk
I've never had that code but I've seen it on here and it seems that it could be an exhaust leak, a bad o2 sensor or a bad catalytic converter. Start troubleshooting and eliminating possibilities.

 

I bought one from Ebay- included new tank, fill neck, lid, motor, and hose. The description has a typo- it does not come with a fluid level float sensor(they stick all the time anyway, just zip tie yours upside down to the frame and the dash light will not come back on).

 

Mine was the O2 sensor. There are two on the 3.4l, typically the sensor after(downstream) the catalytic converter will be ok. You can check the ohms and figure out which sensor is bad. One thing to keep in mind, the O2 sensor is likely failing due to the catalytic converter stopping up(or not allowing the heat to move thru quick enough). I replaced the upstream sensor, and also bought a direct fit catalytic converter from Autozone for just over $100. You can install both parts, two bolts + 3 bolts, just wear glasses or shield cause it'll be raining dirt underneath. Pretreat the nuts, bolts, threads with Kroil or the likes, they'll snap off quick from years of high exhaust heat.

Goodluck,
Malcolm

 

I need to do this too( i need to relocate it). With the new bumper installed my stock one is peeping out just waiting to be punctured.

 

That certainly sounds better than $1000+ I was hearing.

 

FWIW when my upstream O2 (Air/Fuel Ratio) sensor went it threw a P0031 code so maybe the P0420 code is the downstream O2 sensor.

 

You can use the racing heat shield material (cut to size, and its flexible) with self-tapping sheet metal screws, or just relocate it. It's tight under the 3.4 hood, add another layer of heat shield if you get close to the exhaust manifold.

 

That's BS! O2 sensor was around $150 at O'reillys, and the cat was just over $100 at Autozone. All new parts. You could even take the cat to a muffler shop and let them weld it on for $50-75. I did it all myself. While I was at it, I put on a magnflo muffler with chrome tip for a little sound. Just watch those bolts, Toyota will put stainless bolts and parts on the exhaust system and they seize up.

 

Unplug the sensor and check it with an ohm meter. you'll know right away. It seems like the ohm were 13 or so.

 

A picture or two O2 sensor & new cat ...I put my old heat shield on the new cat. You can do this

 

I think ill go with the Kia sportage reservoir bottle or try the ebay listing posted here. Someone here did a write up showing a 93-94 Kia reservoir fits where the empty void is near the airbox.

 

The $1000+ was directed at his rear hub leaking oil everywhere, not the P0420 code:

The CEL and the hub were mentioned in the same post (#128056) but are unrelated.

 

Is your grey leather boot in good shape? Any interest in getting rid of it?

 

Yes, a hub is expensive to repair. Check both sides while your tools are out.

 

I just did my clutch about two months ago, we used the bread technique and it worked marvelously. Less of a mess as well.

 

Yeah my bad... things are crazy at work and I'm trying to research in between jobs. I got things confused. Truck hasnt had one issue in the 3 years I've had it, and both code and axle seal go same day. I do appreciate all the input so far.

 

tntacomaguy was asking about a code. Bulldogs129 gave some possible scenarios including O2 sensors in the $100-$150 range.

tntacomaguy said that's much better than the $1000+ he was hearing. Bulldogs129 thought that was bit much for the engine code remedy.

....and my point was to clarify that while the hub leak and code came up in the same comment your advice and cost estimate was directed at the hub, not the CEL. So the $1,000+ was not a cost estimate to address the P0420 code. Make sense?