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2006 Tacoma CEL P0460 #4609122
12/20/17 08:47 AM
12/20/17 08:47 AM
Joined: Jan 2012
Posts: 29
Virginia
SteveP Offline OP
SteveP  Offline OP
Joined: Jan 2012
Posts: 29
Virginia
First maintenance issue in 11 years of ownership!!!

So starting last spring I started hearing a couple of noises. The first sounded like a rattle - but not metal, more like the sound you'd hear if something was dragging against fan. It only lasted a brief amount of time, and was gone. The second noise was more like a diesel engine sound, at lower rpm ranges typically. Very intermittent. I always run 89 octane fuel, BTW.

I let it go as the first wasn't really an issue unless the truck sat out in the cold overnight. I had my trusted local shop check things out and their best guess was something in the exhaust causing either/both. They had recommended Marvel Mystery Oil as a cleaner and I added 8 oz to the crankcase. About a week later the truck threw code P0460, related to the cat (or cats). I don't believe in coincidences so I am wondering if adding the Marvel could have caused something problematic downstream?

This morning I am changing the PCV valve, air filter, and cleaning the MAF as first steps towards resolving the light - any other thoughts/input welcome.

Re: 2006 Tacoma CEL P0460 [Re: SteveP] #4609139
12/20/17 09:07 AM
12/20/17 09:07 AM
Joined: Oct 2014
Posts: 12,558
Idaho
CT8 Offline
CT8  Offline
Joined: Oct 2014
Posts: 12,558
Idaho
How many miles on the Truck and which engine? Google your code.


2015 Ford F150 2.7
2018 Ford F350 6.2
Re: 2006 Tacoma CEL P0460 [Re: SteveP] #4609146
12/20/17 09:12 AM
12/20/17 09:12 AM
Joined: Feb 2011
Posts: 6,758
Hudson, NH
LeakySeals Offline
LeakySeals  Offline
Joined: Feb 2011
Posts: 6,758
Hudson, NH
I had that code recently on a Nissan. Turned out not to be the fuel level sensor, it was problems with the cluster.


06 Escalade 6.0L LQ9 AWD 165k M1 5w30
03 Maxima 3.5L POS 152k ST HM 10w30
Re: 2006 Tacoma CEL P0460 [Re: SteveP] #4609316
12/20/17 01:11 PM
12/20/17 01:11 PM
Joined: Feb 2015
Posts: 2,359
Slovenia EU
Kamele0N Offline
Kamele0N  Offline
Joined: Feb 2015
Posts: 2,359
Slovenia EU
Most probably your catalyst converter went south (its mesh inside basically)...thats why it is rattling...inside its housing...

Did your fuel consumption go up recently? (engine went in "safe mode")

Last edited by Kamele0N; 12/20/17 01:13 PM.

2008 Toyota Yaris 1ND-TV 1.4 D4-D Elf FullTech FE 5w30
1997 Toyota Landcruiser KZJ95 3.0 TD Shell Rimula R6M 10w40

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