VVT Solenoid (OCV) Replacement DIY
01-08-18, 09:14 PM
#151
MEGH79, what an ordeal! I’ve had my ES300 14+ years; in my guesstimation, your problems feel like MAF and OCV problems. I will say the OCV feels like, to me, a failing transmission. I was shocked the OCV completely fixed the drivability problem.
That being said, I have found the CEL codes thrown exactly track what is wrong with the car. Between OCVs, fuel evap errors, coil,pack problems, the CEL code has completely and reliably diagnosed the underlying problems. I have yet to replace a part that didn’t cure the underlying problem, as triggered by the CEL code.
Good luck!
That being said, I have found the CEL codes thrown exactly track what is wrong with the car. Between OCVs, fuel evap errors, coil,pack problems, the CEL code has completely and reliably diagnosed the underlying problems. I have yet to replace a part that didn’t cure the underlying problem, as triggered by the CEL code.
Good luck!
01-15-18, 07:21 AM
#152
Driver School Candidate
MEGH79, what an ordeal! I’ve had my ES300 14+ years; in my guesstimation, your problems feel like MAF and OCV problems. I will say the OCV feels like, to me, a failing transmission. I was shocked the OCV completely fixed the drivability problem.
That being said, I have found the CEL codes thrown exactly track what is wrong with the car. Between OCVs, fuel evap errors, coil,pack problems, the CEL code has completely and reliably diagnosed the underlying problems. I have yet to replace a part that didn’t cure the underlying problem, as triggered by the CEL code.
Good luck!
That being said, I have found the CEL codes thrown exactly track what is wrong with the car. Between OCVs, fuel evap errors, coil,pack problems, the CEL code has completely and reliably diagnosed the underlying problems. I have yet to replace a part that didn’t cure the underlying problem, as triggered by the CEL code.
Good luck!
01-21-18, 08:47 PM
#153
Hello
My front bank LH OCV failed a few weeks ago, was out of town in the mountains so had it towed to the nearest dealer and they replaced the part.
I ordered one for the rear RH bank and just installed it.
When I removed the small 10mm head bolt that holds it in the bolt fell out of the socket and I can't find it.
Any chance anyone knows the part number for this bolt. There is a toyota dealer just down the street and then won't lookup or sell Lexus parts but if I give them a part number they will sell me one.
Thanks
My front bank LH OCV failed a few weeks ago, was out of town in the mountains so had it towed to the nearest dealer and they replaced the part.
I ordered one for the rear RH bank and just installed it.
When I removed the small 10mm head bolt that holds it in the bolt fell out of the socket and I can't find it.
Any chance anyone knows the part number for this bolt. There is a toyota dealer just down the street and then won't lookup or sell Lexus parts but if I give them a part number they will sell me one.
Thanks
01-21-18, 09:04 PM
#154
I tend to use Lexus of South Atlanta to find part numbers using their part diagrams.
https://www.lexussouthatlantaparts.c...car-parts.html
I also use Lexuspartsnow.com to confirm they fit my VIN.
https://www.lexussouthatlantaparts.c...car-parts.html
I also use Lexuspartsnow.com to confirm they fit my VIN.
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murphysf (01-21-18)
01-21-18, 09:31 PM
#155
I tend to use Lexus of South Atlanta to find part numbers using their part diagrams.
https://www.lexussouthatlantaparts.c...car-parts.html
I also use Lexuspartsnow.com to confirm they fit my VIN.
https://www.lexussouthatlantaparts.c...car-parts.html
I also use Lexuspartsnow.com to confirm they fit my VIN.
I found it, the part number is:
91631-60612 which I believe has been replaced by 90080-11255.
01-23-18, 04:02 PM
#156
Driver School Candidate
2001 RX300 199,891 miles. Owned since 50,000 miles. Regularly serviced and maintained by a Toyota dealer and DIY (me). About a week ago, my wife said the car was "acting up when it was slow". So I started digging in..
Symptoms:
Intermittent rough idle, and exhaust output with the muffler shaking
CEL, VSC, TRAC dash lights on solid. Sometimes the CEL would flash.
Throttle stall and surge on acceleration usually around 1,500 RPM
Off throttle jerking
Audible cylinder knock (pinging) in the cabin under hard load
Codes:
P0300 Random Misfire Detected
P0301 Cylinder 1 Misfire
P0303 Cylinder 3 Misfire
P0305 Cylinder 5 Misfire
P1349 Variable Valve Timing System (Bank 1)
Four days ago I checked the VVT solenoid filters and they were both surprisingly clean. Ordered two Dorman solenoids via Amazon Prime
I installed them yesterday. Car is running well, all lights are off. One thing I noticed - when I first started the car and test drove, it was still knocking a little bit under hard acceleration. It has since cleared up my guess being the computer has learned the new settings for VVT bank 1 and 2. Fresh Mobile1 5W-30 and she's good for another 10,000!
I'd like to thank all contributors and moderators of ClubLexus. I have saved thousands of dollars using the resources available on here to troubleshoot and fix problems. I'll follow up on these symptoms in 6 months.
Tim
Symptoms:
Intermittent rough idle, and exhaust output with the muffler shaking
CEL, VSC, TRAC dash lights on solid. Sometimes the CEL would flash.
Throttle stall and surge on acceleration usually around 1,500 RPM
Off throttle jerking
Audible cylinder knock (pinging) in the cabin under hard load
Codes:
P0300 Random Misfire Detected
P0301 Cylinder 1 Misfire
P0303 Cylinder 3 Misfire
P0305 Cylinder 5 Misfire
P1349 Variable Valve Timing System (Bank 1)
Four days ago I checked the VVT solenoid filters and they were both surprisingly clean. Ordered two Dorman solenoids via Amazon Prime
I installed them yesterday. Car is running well, all lights are off. One thing I noticed - when I first started the car and test drove, it was still knocking a little bit under hard acceleration. It has since cleared up my guess being the computer has learned the new settings for VVT bank 1 and 2. Fresh Mobile1 5W-30 and she's good for another 10,000!I'd like to thank all contributors and moderators of ClubLexus. I have saved thousands of dollars using the resources available on here to troubleshoot and fix problems. I'll follow up on these symptoms in 6 months.
Tim
Last edited by av8rga; 01-23-18 at 04:09 PM.
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murphysf (01-25-18)
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Avogel (12-24-18)
02-28-18, 09:49 AM
#159
Moderator
No need to be upset.
The sticky threads go over naming of banks ... a must read for any RX first gen owner.
Bank one is next to the firewall, and bank 2 is near the radiator.
Salim
The sticky threads go over naming of banks ... a must read for any RX first gen owner.
Bank one is next to the firewall, and bank 2 is near the radiator.
Salim
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LarryJ63 (02-28-18)
02-28-18, 10:39 AM
#160
Driver School Candidate
it gets confusing btw i was not upset just dumb about leaving my Caps on lol
I was not upset just forget my darn CAPS are on sometimes thank you so much for your help
larry
02-28-18, 10:50 AM
#161
Driver School Candidate
I'm confused on where BANK 2 is FRONT or BACK in the picture ?
Step 1 - Remove Engine Cover and Move Hoses to make room for work.
You'll need to remove the Engine Cover using a 4mm Allen key or socket. There are 3 Allen screws at the front edge of the cover. Remove those and give a light tug on it and it should pop right off.
There are a few hoses which you should loosen up and move out of the way in order to make your work easier so you can see what you're doing and get your hands in where they need to go.
You'll need to remove the Engine Cover using a 4mm Allen key or socket. There are 3 Allen screws at the front edge of the cover. Remove those and give a light tug on it and it should pop right off.
There are a few hoses which you should loosen up and move out of the way in order to make your work easier so you can see what you're doing and get your hands in where they need to go.
Thank you
larry
02-28-18, 01:01 PM
#162
Moderator
03-11-18, 07:46 AM
#163
Driver School Candidate
My Lexus runs like new!
2001 RX300 199,891 miles. Owned since 50,000 miles. Regularly serviced and maintained by a Toyota dealer and DIY (me). About a week ago, my wife said the car was "acting up when it was slow". So I started digging in..
Symptoms:
Intermittent rough idle, and exhaust output with the muffler shaking
CEL, VSC, TRAC dash lights on solid. Sometimes the CEL would flash.
Throttle stall and surge on acceleration usually around 1,500 RPM
Off throttle jerking
Audible cylinder knock (pinging) in the cabin under hard load
Codes:
P0300 Random Misfire Detected
P0301 Cylinder 1 Misfire
P0303 Cylinder 3 Misfire
P0305 Cylinder 5 Misfire
P1349 Variable Valve Timing System (Bank 1)
Four days ago I checked the VVT solenoid filters and they were both surprisingly clean. Ordered two Dorman solenoids via Amazon Prime I installed them yesterday. Car is running well, all lights are off. One thing I noticed - when I first started the car and test drove, it was still knocking a little bit under hard acceleration. It has since cleared up my guess being the computer has learned the new settings for VVT bank 1 and 2. Fresh Mobile1 5W-30 and she's good for another 10,000!
I'd like to thank all contributors and moderators of ClubLexus. I have saved thousands of dollars using the resources available on here to troubleshoot and fix problems. I'll follow up on these symptoms in 6 months.
Tim
Symptoms:
Intermittent rough idle, and exhaust output with the muffler shaking
CEL, VSC, TRAC dash lights on solid. Sometimes the CEL would flash.
Throttle stall and surge on acceleration usually around 1,500 RPM
Off throttle jerking
Audible cylinder knock (pinging) in the cabin under hard load
Codes:
P0300 Random Misfire Detected
P0301 Cylinder 1 Misfire
P0303 Cylinder 3 Misfire
P0305 Cylinder 5 Misfire
P1349 Variable Valve Timing System (Bank 1)
Four days ago I checked the VVT solenoid filters and they were both surprisingly clean. Ordered two Dorman solenoids via Amazon Prime
I installed them yesterday. Car is running well, all lights are off. One thing I noticed - when I first started the car and test drove, it was still knocking a little bit under hard acceleration. It has since cleared up my guess being the computer has learned the new settings for VVT bank 1 and 2. Fresh Mobile1 5W-30 and she's good for another 10,000!I'd like to thank all contributors and moderators of ClubLexus. I have saved thousands of dollars using the resources available on here to troubleshoot and fix problems. I'll follow up on these symptoms in 6 months.
Tim
I’d also like to point out that I chased knock sensor codes on this car for several years (P0330 and P0325). I changed the knock sensors with new OEM and still had the codes. Looking back, the codes may have been a true indicator of timing related engine knock and an indication that the VVT valves were starting to fail. If you are chasing knock sensor problems, I’d suggest to change the VVT valves first.
Tim
Last edited by av8rga; 03-11-18 at 07:55 AM.
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Avogel (12-24-18)
03-11-18, 08:31 AM
#164
Moderator
I am happy to report that my Lexus is running great after changing both VVT valves. It starts better, idles more smooth, accelerates faster, shifts better, and the mpg has gone up by 2. I had never seen or read about these valves, but after a little research and seeing their job, they are a very important piece of how the engine is electronically managed.
I’d also like to point out that I chased knock sensor codes on this car for several years (P0330 and P0325). I changed the knock sensors with new OEM and still had the codes. Looking back, the codes may have been a true indicator of timing related engine knock and an indication that the VVT valves were starting to fail. If you are chasing knock sensor problems, I’d suggest to change the VVT valves first.
Tim
I remember paying a mechanic for finding a problem where the failing part was a pin hole leak in a piping [less than 10c part] but the time he spent searching for it was 6 hrs. middle of a night on a road trip.
Salim
03-22-18, 08:12 PM
#165
I change my two OCV about 3 months ago but I didn't look at the filters.
No I am curious to see what the filters look like. Was thinking if I am going to bother removing the filters should I just get new ones and replace them.
I believe the part number for the filter is 15678-20010 1567820010
If so should I get new orings? Or are they included with the filter?
https://www.ebay.com/itm/LEXUS-OEM-F...lXIP-i&vxp=mtr
I see the oring is listed as a different part 90430-16007 9043016007
No I am curious to see what the filters look like. Was thinking if I am going to bother removing the filters should I just get new ones and replace them.
I believe the part number for the filter is 15678-20010 1567820010
If so should I get new orings? Or are they included with the filter?
https://www.ebay.com/itm/LEXUS-OEM-F...lXIP-i&vxp=mtr
I see the oring is listed as a different part 90430-16007 9043016007