Why does my Lexus RX 300 not have a knock sensor?
Funkyfresh September 6, 2017, 4:03pm #1 So my 99 lexus rx 300 with 200K+ is throwing the codes for both knock sensors. This most likely means that the wiring harness is bad.
How long does it take to repair a knock sensor?
Rodents like closed-in cubbies like that. I would first get into that area and investigate before buying any parts. You can always just put it back together and run it while you wait for any parts or supplies. The harness might be easily repairable. It’s certainly not a quick disassemble/re-assemble job. I think it bills at about 5 hours.
Can a rodent damage a car knock sensor?
Rodent damage should be pretty easy to see. If the cables are good, then maybe the sensors are bad, but it does seem unlikely that both would go at the same moment. Owning 2 older vehicles makes lots of sense to me. It costs no more, and it gives you the time to do work like this.
What is the code for the knock sensor?
The code is 0325 which is saying the sensor is faulty, not that it’s just detected knock. I would love to dream up some other reason as to why my problem is happening, and I usually do, but this seems pretty straight forward. Without removing the knock sensor and testing what more diagnosis would you recommend?
Funkyfresh September 6, 2017, 4:03pm #1 So my 99 lexus rx 300 with 200K+ is throwing the codes for both knock sensors. This most likely means that the wiring harness is bad.
The code is 0325 which is saying the sensor is faulty, not that it’s just detected knock. I would love to dream up some other reason as to why my problem is happening, and I usually do, but this seems pretty straight forward. Without removing the knock sensor and testing what more diagnosis would you recommend?
How much does it cost to replace a knock sensor?
You can always just put it back together and run it while you wait for any parts or supplies. The harness might be easily repairable. It’s certainly not a quick disassemble/re-assemble job. I think it bills at about 5 hours. A new harness is inexpensive at ~$30. I’ll probably just buy the harness and bypass hose to have on hand.
Can a spark plug cause a knock sensor to go out?
Bad gas, worn spark plug and mechanical problems generally won’t result in a loss of signal from the knock sensors. This is a knock sensor problem, not a detonation problem. he was able to get a mirror or scope under the intake and observed some signs of rodent damage on the harness Rodents like closed-in cubbies like that.
Bad gas, worn spark plug and mechanical problems generally won’t result in a loss of signal from the knock sensors. This is a knock sensor problem, not a detonation problem. he was able to get a mirror or scope under the intake and observed some signs of rodent damage on the harness Rodents like closed-in cubbies like that.
Why is my knock sensor not working properly?
It’s a good bet there’s an electrical problem common to the knock sensors, but there’s other possibilities that would explain knock sensor codes. A tank of bad gas, spark plugs who’s electrodes have too wide of a gap, problem w/the advance/retard mechanism, variable valve timing problem, etc.
You can always just put it back together and run it while you wait for any parts or supplies. The harness might be easily repairable. It’s certainly not a quick disassemble/re-assemble job. I think it bills at about 5 hours. A new harness is inexpensive at ~$30. I’ll probably just buy the harness and bypass hose to have on hand.
What happens when the knock sensor goes bad?
Both Knock sensors went bad simultaneously and the tech who originally looked at it claimed he was able to get a mirror or scope under the intake and observed some signs of rodent damage on the harness. I was skeptical because I’ve fixed symptomatic CEL codes by repairing something different than the stated code.
Rodent damage should be pretty easy to see. If the cables are good, then maybe the sensors are bad, but it does seem unlikely that both would go at the same moment. Owning 2 older vehicles makes lots of sense to me. It costs no more, and it gives you the time to do work like this.
What are the symptoms of a bad knock sensor?
Bad knock sensor symptoms 1 A failed knock sensor will register a trouble code and illuminate the Check Engine lamp (CEL), although some engines… 2 Misfire 3 Vibration, especially at highway speed 4 Thumping or knocking noise from the engine 5 Poor fuel economy and acceleration More
Where is the knock sensor on a Honda?
A car knock sensor is located on the intake manifold, cylinder, or engine block. The purpose of the knock sensor is to sense unusual pulsations caused by the engine detonation.
How can I repair or replace my knock sensor?
You can repair or replace the knock sensor of your vehicle by yourself by following a step by step easy to follow guide. For this purpose, it is highly recommended to keep a service manual of your vehicle with you before starting. Usually when we confirm that the knock sensor of the vehicle has gone bad the best way to get it fixed its replacement.
Is the knock sensor bolted to the engine block?
The most common is that it is bolted to the engine block. Keep in mind that your knock sensor needs to hear and feel what’s going on. Because of the wide variance on a knock sensor’s locations, it’s best to have an idea of what you’re looking for before you start.