Last post on Jan 19, 2012 at 12:42 AM
You are in the Toyota Tacoma
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Toyota Tacoma, Toyota, Engine, Truck
#3 of 18 Re: 2009 Tacoma running rich [wwest]
Mar 03, 2011 (11:32 am)
I do WASH my truck alot more than most others, I take very good care of this truck, not off road. just everyday typical driving conditions.. just for your info.
Just looking to see why the truck gives off black carbon... and to see if there is a correction for it.....
If you have nothing good worth saying, don't waste your time posting it on here!! must work for a toyota service department????
#4 of 18 Re: 2009 Tacoma running rich [09taco]
Mar 03, 2011 (6:44 pm)
#5 of 18 Re: 2009 Tacoma running rich [wwest]
Mar 03, 2011 (7:56 pm)
doesn't seem to be burning oil...I would say burning more gas than it should, I just checked got about 14 mpg city driving. I should be around 16city..no service lights on....the end of my tail pipe looks like a smoke stack off a old Mack Truck...which makes my back corner panel Black.
again this truck is very clean... TRD off road double cab V-6 auto..
#6 of 18 njones68
Mar 05, 2011 (10:47 am)
Just got my Dbl Cab back from the Dealer, tells me this condition is normal on all Tacomas. Sometimes on startup I get a fair amount of smoke which I don't think is normal. Suggested I buy a chrome extension for the tail pipe to keep the black off the paint. Only had the vehicle 6 weeks ( second owner ), first import I've owned, not too impressed with Toyota Service so far.
Anyone experienced throttle sticking ( electronic fly by-wire ) on this vehicle? I've had a couple of instances where it does not want to throttle back, ECU has been modified for the brake overide.
#7 of 18 Re: 2009 Tacoma running rich [09taco]
Mar 12, 2011 (7:44 pm)
Do you take a lot of short trips..... say 2-3 miles?
Even modern engines run richer until they approach normal operating temperature.
I have a 09 4-cyl Tacoma (15K miles) and have never noticed anything like what you have described...
It should be fairly easy to find a local garage that has an exhaust sensor used in tune-ups that can do an actual exhaust analysis, if you are so inclined to verify the "richness" coming out of the tailpipe...
#8 of 18 Re: 2009 Tacoma running rich [busiris]
Mar 13, 2011 (3:58 pm)
that's something to think about...That might be something to check into. I do drive short trips on the weekends, and about 10-12 miles to work monday to friday..The truck seems to run okay, for now. But I think its not right to have this heavy black carbon on the side of a newer truck, people see this and say eewww. whats wrong with your truck? And again I keep my truck VERY clean.
#9 of 18 Re: 2009 Tacoma running rich [09taco]
Jul 18, 2011 (6:20 pm)
Carbon is a normal byproduct of combustion. The "soot" you are refering to is pure carbon that is left over after the combustion of the hydrocarbons has occured in the combustion chamber. Other byproducts of the automotive engine include H20, C02, N0x, CO, et all. Because complete combustion is impossible - you will always have soemthing left over. A quick internet search of any model will reveal that a lot of people take notice of this condtion regardless of make or model. It is 100% normal - dont sweat it. If your engine light is off you really have nothing to worry about.
Yes I am a Toyota MDT.
#10 of 18 Re: 2009 Tacoma running rich [roosterjon]
Jul 22, 2011 (4:54 pm)
I disagree with you, your answer sounds like a typical dealer service "brushoff". The problem that 09 taco is describing is not 100% normal, or even 10% normal, based on casual observation of other vehicles that I see.
I don't see "sooting" on my Tacoma, or my Avalon, either. I think the post about an exhaust gas analyzer would be a good place to start, because there is something definitely wrong, and it is not being indicated by the "check engine" light for whatever reason.
#11 of 18 Re: 2009 Tacoma running rich [wwest]
Jul 22, 2011 (4:57 pm)
wwest, I am ashamed of you. You normally give a much more technical response to the problems that folks have.
#12 of 18 Hows a grand sound?
Jul 23, 2011 (9:30 am)
With no MIL light on...... I will bet $1000.00 that your 09 Tacoma is operating 100% normal and you just can't accept that you are wrong. I deal with guys like you all day long. I will gladly put it on my 5 gas for no charge. I will even invite the engineer of your choice to come and be a witness. Does that sound like a brush off ?