2012 toyota sienna check engine and trac off light

Discussion in ' 3rd Gen. Tacomas ' started by vuTronNov 17,

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. I am new here. I drive a Sienna

2012 toyota sienna check engine and trac off light

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. Yesterday the van was driven by my family to PA from NY, total round trip was about miles. This morning when i drove the van, the check engine light and the trac off light were both on. The engine is a bit louder and rougher. Also the biggest concern is that the van jerks pretty hard from 1st to 2nd gear. The gears do not shift smoothly at all. Sort by Oldest first Oldest first Newest first Most reactions.

For example if you swapped the spark plugs between cylinder 6 and 5, and the misfire moved from 6 to 5, excellent chance the problem is a faulty spark plug.

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. Yesterday the van was driven by my family to PA from NY, total round trip was about miles.

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. Recently it got progressively worse and unsafe as it would kick in traction control and slow me down. I read some varying ideas out there on a fix for this, so going into a mechanic visit I wanted to make the most efficient expenditure of money to try to get it fixed.

2012 toyota sienna check engine and trac off light

The car felt like it was in 4 wheel drive. I read around and found two things that I had to do to get the car fixed. It has to click at least once. Make sure there is no gunk around the gas nozzle as well so that the cap and nozzle get a tight seal. I let them be disconnected for 10 minutes. I returned connected the battery and both warning lights were now off and car was back to normal other than having to reset clocks, radio, etc.

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So if having issues always check your battery as well.. From what I can tell, when there's a check engine condition, it turns off the AWD system and thus Traction Control too. Believe it or not But should you be told they won't tell you the code, either be firm that you would never buy without knowing why, or simply head on down the street to a more cooperative merchant. This is an older thread, you may not receive a response, and could be reviving an old thread. I use it as a camper mainly for trips. I am new here. But, there seems to be a large cloud over this issue with no clear resolution. The engine light came back on after a few minutes. I was due this week for an oil change so I'm taking it into my shop on Wednesday for investigation.

The Check Engine light, on the other hand, may indicate a problem with the engine control system.

I have driven about 50 miles since it first popped up and the the CEL is still on so it doesn't seem to be a transient thing that would auto reset. The engine light came back on after a few minutes. In our case, the car always drove normally except that we had the check engine light and other warnings mentioned, plus we could not use the cruise control. Insert Quotes Quotes Post Reply. That coil is easy to replace, front bank, last cylinder. They figured out that when the knock sensor went bad the entire circuit board went bad and got fried. The first problem you fix yourself pays for it. Will you please tell me what can that be? If the Check Engine light turns on, the Trac off light will turn on automatically. Used Cars for Sale. Toyota GR Corolla Forum.