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2012 Toyota Tacoma engine problems

124 complaints (42% of all complaints for this car). Typical mileage when it fails: 60,200. 1 crash reported.

owner complaints
124
of this car's complaints
42%
typical mileage
60,200
crashes
1
recalls
0

Which part fails

Owners did not name a specific part.

At what mileage

Complaints by mileage at the time of the problem.

0k-25k
25k-50k
50k-75k
75k-100k
100k-125k
125k-150k
150k-175k
175k-200k
200k+

Toyota Tacoma engine problems in other years

1995200020052010201520202026

Specific symptoms reported on the 2012 Toyota Tacoma engine

Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.

Check engine light 96Loss of power 31

Related recalls

No recalls on record for this model year.

What 2012 Toyota Tacoma owners say

Most recent owner complaints, unedited.

Filed Aug 30, 2022 · Engine · 85,000 miles · LA

The contact owns a 2012 Toyota Tacoma. The contact stated that while driving, the vehicle failed to exceed 45 MPH. The contact stated that the check engine and traction control warning lights were illuminated. The vehicle was taken to an independent mechanic who informed him about a Special Service Campaign: 20TC01. The vehicle was taken to the local dealer where it was diagnosed and determined that the air injection pump needed to be replaced. The vehicle was not repaired. The manufacturer was contacted and informed him that the Special Service Campaign: 20TC01 had expired. No additional assistance was provided. The failure mileage was approximately 85,000.

Filed Jun 2, 2021 · Acceleration, Brakes · NH · crash · 1 injury

June 1st 2021 I went to park in a parking space at a local mall. My truck instead of stopping it accelerated out of control jumped two stone curbs, drove though a fence and landed into a swamp. Call Toyota and they have opened a new case # 210602000065. Police report # 21-374-AC. This isn't the first time that this has happen with this truck. It happen in Aug 2019. I contacted Toyota case number 1908060035. They sent out EAA Engineering Analysis Ass. out who did a ACM.CDRX file a month later. Toyota came back said they couldn't find anything wrong and my case was closed. Another incident in winter of 2016 where my truck was stopped and it accelerated on its own and It drove in the 4 way intersection where it caused an accident. lots of damage to cars. Toyota was contacted and they sent me to a dealer for repairs. Dealership has records of my truck coming in since I owned it with complaints of Truck not moving at all to all of sudden to acceleration on its own.

Filed Aug 18, 2020 · Engine, Suspension · 137,000 miles · VT

I brought truck to toyota dealership as part of rusted frame recall to be verified. They stated truck was not rusted enough underneath for toyota to approve recall. That was a couple of months ago. I have recently brought it to a few mechanics to do some work on A/C as the A/C stopped working and that refuse to work on it as the truck is so rusted underneath!! They said it would crumble. Not even worth it.

Filed May 11, 2020 · Engine · 91,000 miles · CA

My 2012 tacoma warning light 1) engine and 2 trac off warning light came on and lost power going 65 MPH on freeway and would not go over 25 MPH (dangerous!). Obd-ii scanner displayed error code check p2442 indicating faulty air injection pumps and/or air switching valves.

Filed Apr 11, 2020 · Engine · 103,000 miles · UT

On my 2012 tacoma the code p2440 and p2442 which represent a stuck open valve in the secondary air injection system. Upon my research into this issue on forums I have learned this is a common problem with the toyota systems particularly the 2012 tacoma. The cost of the part is about 400 to 500 dollars for the valves and another 500 dollars for the secondary air injection pump. The failure will place the vehicle into a limp mode and has to be fixed in order to the truck to keep on good working condition. It seems like this error has affected many tacoma owners.

Filed Jan 27, 2020 · Engine · 68,381 miles · NJ

Two dashboard lights illuminated at the same time: the check engine light and the trac off light. At first I really didn't notice much of a difference but after 2 days I experienced significant power loss. I would pull out into traffic ok until about 20mph then have no power. It crawled while trying to get up to speed. I read on the internet that if you disconnect the battery and open the gas cap the lights would go out and the problem would go away. I did this and it worked; or so I thought. I then left for an hour trip (I know dumb) and within 15 mins the lights came back on and I couldn't get the truck over 60mph on a major highway. I actually stopped at a rest stop and disconnected the battery and removed the gas cap. Again this shut off the lights but only for about 5 mins. Then the power loss was back. Took to my local mechanic who I trust and he said it was a known problem that was something called a technical service bulletin but not yet a recall. Apparently the tundra and sequoia are recalled for this problem but not the tacoma. I don't get it. I was told to keep my receipts ($1,870.68) right after christmas thank you, and hopefully one day get reimbursed if it becomes a recall. I can only hope this is a no interest investment into my future.

Filed Dec 31, 2019 · Engine · 91,500 miles · KY

Failure of the secondary air injection system p2440 and p2442, while the vehicle was moving onto a city street from a parking lot. When accelerating immediately there was a decrease in power and the check engine light along with the "trac off" light illuminating simultaneously. The vehicle has a now maximum speed of around 55 MPH and extremely slow to accelerate being almost dangerous on busier roads. After being check out by a the dealer it was found to be the secondary air injection system which is covered by an extended warranty but parts are on back-order.

Filed May 18, 2019 · Engine · 46,000 miles · NM

While on a road trip I had my check engine light come on while on the highway due to defective secondary injection valves being stuck closed/open. The codes I had for this issue is p2440 and p2442. In my case this issue made my truck go into limp mode which is often a loss of power in the engine and sometimes a restriction in one's ability to shift the truck. Luckily the highway was not busy at the time this happened, but if it were I would believe that it would be a very unsafe thing to happen going 70 MPH. The parts do have an extended warranty until 2022 if I remember right, but it seems like toyota is not interested in recalling these parts even after they have known for many years that these parts are defective. I have done quite a bit of research and found issues with these parts going back to 2013.

Filed May 2, 2019 · Acceleration, Engine · 86,000 miles · CA

I was on the the highway today and suddenly I lost power and won't pass speeds over 40 MPH very dangerous have heard this happend to a lot of tacomas/ tundras and has to do something with the emissions I think I need a new diverter valve which toyota should cover

Filed May 1, 2019 · Engine · FL

Having trouble with my vehicles secondary air injection system, replacement parts are super expensive and have seen many people have the same issue, seems like a non-reliable component. Always get the fault codes p2440 and p2442. I strongly beleive that this is a defective component.

Questions about the 2012 Toyota Tacoma engine

Does the 2012 Toyota Tacoma have engine problems?

Owners have filed 124 complaints about the engine of the 2012 Toyota Tacoma, 42% of all its complaints, more than any other problem.

At what mileage do 2012 Toyota Tacoma engine problems start?

The typical (median) mileage in owner complaints is 60,200 miles.

Was there a recall on the 2012 Toyota Tacoma engine?

There is no recall for this problem on this model year.

What year does the Toyota Tacoma have bad engine?

The Toyota Tacoma model years with the most engine complaints are 2012 (124 complaints), 2016 (47 complaints) and 2006 (45 complaints).

Other 2012 Toyota Tacoma problems

Fuel system 53Transmission 35Acceleration 22Brakes 22Suspension 21Driver assistance 19Electrical 19Steering 12Airbags 9Body 9Wheels 7Lights 3Seat belts 2Seats 2Tires 2

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