Knock sensor can be a costly
Wow, you hit the bad-news jackpot, William. The knock sensor is a complete pain in the tailgate to replace. You have to remove the air plenum, the intake manifold, the timing belt and lots of other stuff to get at it.Get more news about Heve Engine Sensor,you can vist our website!
The fact that Toyota buried it like that tells me that they never expected it to fail. And perhaps it hasn’t failed. It easily could be a broken or frayed wire leading to the knock sensor that’s causing the warning light to go on and off.
Once your mechanic removes the plenum, which is easy, he should see a wiring harness that leads to that sensor. Who knows? You might find a rodent nest in there and a chewed-up wire or two.You really do need a working knock sensor. The sensor continuously gauges the timing of the explosions in your cylinders, and adjusts the spark timing if the explosions start happening too early (that’s called knocking, or pre-ignition, and it’s damaging to your engine — and in extreme cases, can even burn a hole in a piston).
Here’s my advice: Find yourself a mechanic who is willing to take it a step at a time. Have him start by removing the plenum and checking the wiring first. You can be standing next to him with a stack of $20s and dole one out to him every 15 minutes as he works.
If you’re lucky, you’ll be able to stop doling well short of $2,200. I sure hope so, William.
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