Go Back   Club Lexus Forums > Lexus Model Forums > ES Models > ES300 and ES330
Sign in using an external account
Register Forgot Password?

How to replace knock sensors in 99 ES300

Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 07-15-11, 04:41 PM   #1
saggy007
Driver School Candidate
Trader Score: (0)
 
Join Date: Jul 2011
Location: Arkansas
Posts: 2
Default How to replace knock sensors in 99 ES300

I have Lexus ES 300 99 model. I have engine check light on which shows two knock sensor error codes and one catalytic converter error code. Does any one have worked on fixing knock sensor of Lexus ES300 by themselves? If yes please guide me through the process (pictures or videos will be really helpful). I got a quote from repair shop and they said it will cost me $690 ($190 each knock sensor+ 3 hrs of labor) to replace knock sensors. Any help will be greatly appreciated.

Thank you,
Saggy
This ad is not displayed to registered members.
Register your free account today and become a member on Club Lexus!
saggy007 is offline   Reply With Quote
Old 07-18-11, 04:56 PM   #2
deeda1
Driver School Candidate
Trader Score: (0)
 
Join Date: Apr 2010
Location: AZ
Posts: 3
Default

Saggy, I understand this is not a tough task. DO NOT PAY the $690. I have the exact same problem right now with my 99es300. I just found the part for $50 by a company called autopart pro. Same part # OEM 896151-2040. I will get the step by step & post it here. I will take pics. (FYI)-With the ES300, once one function of the engine goes out typical there is multi errors. The reason is that the other parts depend on broken part to properly function. I'm that is the problem with the cat converter. If you can wait a few days, (i understand if you can't) But I will do my best to post that stuff here) It'll save you $640! Also, go to AUTOZONE, they can do a check engine light test for free & can tell "which of the 2" are out. You prob only need to replace one. Not both. They will tell you Bank 1 or Bank 2 sensor is out. We'l be in touch

http://www.amazon.com/94-00-Lexus-Kn.../dp/B003DSFIFS
deeda1 is offline   Reply With Quote
Old 07-22-11, 06:08 PM   #3
saggy007
Driver School Candidate
Trader Score: (0)
 
Join Date: Jul 2011
Location: Arkansas
Posts: 2
Default

Deeda, thank you for responding. I checked with fire stone and they reconfirmed that I have two knock sensor codes showing up P0325 code for bank 1 and P0330 for bank 2. Also, I have one catalyst converter code p0420. I will wait this weekend to see your work. I donít want to be rude but when are you planning to fix your knock sensor. Again thank you very much for giving me hope that I can fix it my self and not spending so much of money. I am eagerly waiting to see the instructions.

Sagar.
saggy007 is offline   Reply With Quote
Old 09-13-11, 08:19 PM   #4
kharma
Driver School Candidate
Trader Score: (0)
 
Join Date: Jun 2010
Location: tx
Posts: 2
Default

Any new on this issue?
kharma is offline   Reply With Quote
Old 09-14-11, 05:02 AM   #5
mdbrown
Lead Lap
Trader Score: (0)
 
Join Date: Aug 2011
Location: Virginia
Posts: 552
Default

Actually, 3 hours of labor is not bad for a job which requires removal of the intake manifold. I'd be very leery of a $50 part too, especially considering what it takes to get to it if it turns out to be insufficient. There are times to cut corners but I don't think this is one of them, buy the OE part. The cat converter code should go away once the knock sensors are repaired. You might do well to check wiring while you wait, both sensors failing at the same time is a bit odd...
mdbrown is offline   Reply With Quote
Old 09-14-11, 02:17 PM   #6
02SDGS
Lexus Champion
Trader Score: (0)
 
02SDGS's Avatar
 
Join Date: Jul 2007
Location: ny
Posts: 4,631
Default

Just paid 540 to replace a sensor of mine few weeks ago, the sensor itself was 190 oem and 3 hours service and 3 gaskets needed to be replaced as well for the intake
02SDGS is offline   Reply With Quote
Old 06-12-13, 01:28 PM   #7
Nberke
Driver School Candidate
Trader Score: (0)
 
Nberke's Avatar
 
Join Date: Jan 2011
Location: CT
Posts: 22
Default 1999 ES300 Knock Sensors replaced

OK... well after reading all the posts on this issue i have decided to replace both knock sensors, wire harness, bypass hose, gaskets, and spark plugs. I have learned a lot of the procedure in this thread but to make sure i did it right the first time, i went out and got a repair manual from the nearest advanced auto parts store before i started. This book gave me the torque specifications to tighten the manifold to the right torque. This is a really easy job if your handy with a wrench and you are patient with cleaning off the manifolds before installing the new gaskets.(REALLY IMPORTANT). This job looks like a big Job but it is really fairly easy. It took me a fair part of the day around 5 hours. I did find when i got the intake manifold off was leaves and bird feathers. Something was nesting in it and if not cleaned out my car would have probably caught on fire.

I was quoted a price of $1200.00 from a garage. I didn't even go to the Lexus dealer probably cost alot more. I spent $500.00 in parts and i feel pretty satisfied that i didn't pay $700.00 for someone to do this in labor.

Good luck to everyone on this Project.



I have 1999 Lexus ES300 120,000 miles
__________________
First time owner of a Lexus.
1999 ES300 61,000 Miles 12/10
Nberke is offline   Reply With Quote
Old 06-24-13, 02:11 PM   #8
imherenow
Lexus Champion
Trader Score: (0)
 
imherenow's Avatar
 
Join Date: Aug 2005
Location: TX, CA
Posts: 1,648
Default

got a engine light and it also shows P0325 dang it i always fill with highest octane gas and still....
so it looks like will have to remove the intake has to be removed . so just wondering since removing it should i also change the other sensor which is P0330?
just wondering what happens if i didn't change the the P0325 sensor
__________________
imherenow is offline   Reply With Quote
Old 06-25-13, 08:14 AM   #9
imherenow
Lexus Champion
Trader Score: (0)
 
imherenow's Avatar
 
Join Date: Aug 2005
Location: TX, CA
Posts: 1,648
Default

any one???
__________________
imherenow is offline   Reply With Quote
Old 06-25-13, 10:56 AM   #10
tomf
Pole Position
Trader Score: (0)
 
Join Date: Feb 2010
Location: Nebraska
Posts: 257
Default

When my knock sensor failed the car would go into limp mode. Basically making it undriveable. Other people have reported no adverse driving affects from a bad knock sensor. As I understand, driving without a working knock sensor would not allow detection of knocking. Knocking does bad things to an engine.

I recommend replacing the bad knock sensor. But, if you are willing to take the chance of having undetected knocking and your car does not go into limp mode then don't replace it. I was not willing to accept that risk.

I only replaced the bad knock sensor when I replaced mine. I usually only replace bad components. But if you think the other knock sensor might go bad and don't want to deal with the replacement again go ahead and replace both. They are close together and there is minimal extra work (unscrewing the old one and screwing in the new one) to replace both.
__________________
1999 ES300 154,000 miles and 110,000 miles
1995 Camry V6 with 1mz-fe engine 210,000 miles
tomf is offline   Reply With Quote
Old 07-01-13, 05:07 AM   #11
Nberke
Driver School Candidate
Trader Score: (0)
 
Nberke's Avatar
 
Join Date: Jan 2011
Location: CT
Posts: 22
Default

Replace them both while your in there. And replace that wire harness too
Nberke is offline   Reply With Quote
Old 10-18-13, 08:50 AM   #12
tattooeasy
Driver School Candidate
Trader Score: (0)
 
Join Date: Oct 2013
Location: Ca
Posts: 4
Default

I have done this job many times on es300's... the shortcut is to take the three 12mm bolts off and split the intake in two,,,and take advantage of the black flex hoses... with a helper one firm pull eliminates a lot of work... from there all the work is the screws, bolts, and nuts down the firewall... its all 10mm and 14mm... ratcheting wrenches do the trick... pay mind to not dropping em... keep a magnet near you... as for the brace only remove the top bolt...
tattooeasy is offline   Reply With Quote
Old 10-18-13, 08:55 AM   #13
tattooeasy
Driver School Candidate
Trader Score: (0)
 
Join Date: Oct 2013
Location: Ca
Posts: 4
Default

and I agree... dont mess with aftermarket parts on this job... Toyota uses whats called a Resonance Piezo Electric Knock Sensor... they only read at 7000hz... normal knock sensors are mass piezo(hear all sounds) to test these knock sensors you have to make the system run lean or have an oscilloscope...
tattooeasy is offline   Reply With Quote
Old 10-18-13, 08:58 AM   #14
tattooeasy
Driver School Candidate
Trader Score: (0)
 
Join Date: Oct 2013
Location: Ca
Posts: 4
Default

and for sure replace the wire harness... its only 42 at the dealership
tattooeasy is offline   Reply With Quote
Old 10-18-13, 08:58 AM
 
 
 
 
Reply

Tags
300, 99, bypass, cateletic, converter, es, es300, found, knock, lexsus, lexus, replace, replacement, replacing, sensor, sensors

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Knock Sensor p0330 appears even after replacement of the sensor novosartov ES300 and ES330 5 10-07-14 09:15 PM
Knock sensor Nightmares. Advice appreciated craigndee RX - First Generation 3 08-30-14 12:15 PM
Knock Sensor Problem shahzach ES300 and ES330 7 06-07-14 09:52 PM
http://www.clublexus.com/forums/images/smilies/Peace.gif Knock Sensor code shahzach ES300 and ES330 0 03-10-14 04:48 PM
1999 ES300 knock sensor issues frednaz ES300 and ES330 1 10-13-10 07:53 AM

All times are GMT -7. The time now is 04:22 AM.

Join ClubLexus
Advertising


Copyright © 2000-2008 Internet Brands, Inc. All Rights Reserved
Privacy Policy | Disclaimer | Terms of Use | JOBS


Get all contact info