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2005 RX330 Rear door problem

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Old 02-11-11, 02:15 PM   #1
MLBEATBOX
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Default 2005 RX330 Rear door problem

Hello,

I have an 05' RX330 and I have had problems with the automatic opening rear door closing by itself once it reaches (almost) fully open. A few weeks ago I was loading something in the back and it happened again so I (forcefully) pushed it back up. Wish I would have kept my "cool".... Now it doesn't work! Has anyone else had this problem? Is it a reset issue? Wondering if I may have ruined the pistons, or motor, and need to replace one or both. I know the pistons (for both) are around $500 for the pair... OUCH!

Thanks,

Mike
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Old 02-11-11, 02:45 PM   #2
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Have you tried opening the rear hatch manually?
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Old 02-13-11, 02:17 PM   #3
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I have the same year and make. I don't have any advice but keep us posted to what your solution was.
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Old 02-13-11, 02:26 PM   #4
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You might try using some liquid silicone fluid and lubricate the struts on the hatch. It may be that the sensor is tripping due to too much force. I'd not use WD40 or anything that thin but I'd not use a paste either.
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Old 02-13-11, 05:44 PM   #5
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I had a similar issue with my RX330. I Lubricated both the struts and the hinges at the top with white lithium grease, and I have not had a problem since (6 months ago).
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Old 02-14-11, 06:42 AM   #6
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Also might be a good idea to actually just manually lift the tail gate to full extension and then close the door firmly. I have the odd issue every so often where the automatic tail gate won't engage with the key or the door. For me it looks as though the door was not fully and although the locking mechanism engaged and there are no beeps or lights to say it is open, I suspect the switch requires a little bit of "manual override" and then works for a long time after that.
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Old 02-16-11, 03:52 PM   #7
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Thanks for the responses everyone. I did lube the piston shafts with Mobil 28 (the best grease on earth), but that's not my problem. The pistons help move the weight of the heavy door. When there is too much stress on the motor, which does most of the work, it overloads and lets the door come down and shut itself. Lubrication is definitely the cure for that. The problem I'm having is with the actual motor (or associated gears or drives) which is near the hinge, above the headliner. I'm not sure yet if the motor needs replacing ($1,000+ from my local dealer) or a gear that drives the hinge arm needs replacing or resetting. After this happened, I opened the door manually, and exercised it a few times. It was working fine until 2 days ago... Now it wont open manually more then 6 inches! I'm a pretty mechanical guy, but with having to remove the headliner, deal with broken clips, dented foam and torn fabric, I may just suck it up and take it to the dealer... Again, OUCH! I'll post the outcome after I decide how to go about fixing this!
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Old 03-07-11, 07:06 PM   #8
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i can only close my rear door halfway and then it won't go down any further. it's not working at all in power mode. anyone have any experience with this? thanks
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Old 03-08-11, 12:19 PM   #9
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I have an 08 with the same problem. I am actually at the dealer now getting the motor replaced. I had a feeling it was a pricy repair. Luckily its still under the CPO bumper to bumper warranty.
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Old 12-11-11, 07:13 AM   #10
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Quote:
Originally Posted by MLBEATBOX View Post
Thanks for the responses everyone. I did lube the piston shafts with Mobil 28 (the best grease on earth), but that's not my problem. The pistons help move the weight of the heavy door. When there is too much stress on the motor, which does most of the work, it overloads and lets the door come down and shut itself. Lubrication is definitely the cure for that. The problem I'm having is with the actual motor (or associated gears or drives) which is near the hinge, above the headliner. I'm not sure yet if the motor needs replacing ($1,000+ from my local dealer) or a gear that drives the hinge arm needs replacing or resetting. After this happened, I opened the door manually, and exercised it a few times. It was working fine until 2 days ago... Now it wont open manually more then 6 inches! I'm a pretty mechanical guy, but with having to remove the headliner, deal with broken clips, dented foam and torn fabric, I may just suck it up and take it to the dealer... Again, OUCH! I'll post the outcome after I decide how to go about fixing this!

I think that this may also have happened to my RX330. How did you go about fixing? Cost? Thanks.
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Old 12-18-11, 08:06 PM   #11
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I am having this exact same issue on my 05 when using the automatic open function. It opens fully, then beeps and begins to lower on its own. Might try some lubricant on the struts, but I fear it's an issue with the motor.

I can open the rear hatch manually without an issue, other than having to be a bit forceful with it. Don't want to cause further damage to anything.

what to do......



Quote:
Originally Posted by MLBEATBOX View Post
Hello,

I have an 05' RX330 and I have had problems with the automatic opening rear door closing by itself once it reaches (almost) fully open. A few weeks ago I was loading something in the back and it happened again so I (forcefully) pushed it back up. Wish I would have kept my "cool".... Now it doesn't work! Has anyone else had this problem? Is it a reset issue? Wondering if I may have ruined the pistons, or motor, and need to replace one or both. I know the pistons (for both) are around $500 for the pair... OUCH!

Thanks,

Mike
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Old 11-08-12, 06:27 AM   #12
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I have a 2006. It does the same thing. Goes up to top, beeps four times and comes right down again. After pressing the open hatch button on the RC (or dash button) and going up and than right down it eventually goes up and stays there. I replaced the multi-plex computer 89222-0E020. It didn't make any differnece. Now I'm thinking it might be a sensor. Basically I'm stumped. It's a nice feature only wished it would work properly. Jamie
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Old 12-16-12, 08:41 AM   #13
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Update. Still doing it. it seems to be temperature related. Wish a real Lexus tech reads this thread and offers a solution (if there is one) . merry christmas . jamie
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Old 10-08-13, 02:57 PM   #14
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The hatch on my RX-330 does the same thing but only in weather below 60 degrees. Lexus replaced the struts in April 2012 and now the problem is back. Any ideas?
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Old 10-08-13, 03:06 PM   #15
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Quote:
Originally Posted by spratt23 View Post
The hatch on my RX-330 does the same thing but only in weather below 60 degrees. Lexus replaced the struts in April 2012 and now the problem is back. Any ideas?
Welcome to Club Lexus, spratt23.

You can try cleaning the struts and applying some lubricant to see if that helps any. Would try a silicone spray
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Old 10-08-13, 03:06 PM
 
 
 
 
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