Jump to content

2000 Rx300 Rpm Moves Slightly In Park, Neutral Or Stopped At Lights


Recommended Posts

I have a 2000 rx300 with 131,xxx miles. This first started on a 18 hr road trip. When we got the the rpm moved up and down slightly but noticeable at stop lights or slow speeds. Someone did fill it with octane 85 when i was sleeping during a fill up or 2. After we let the car sit after we reached destination the problem was gone. I returned back home to MN and there were no problems. I'm not sure it this is connected to the current problem but it could be.

A couple weeks down the road the rpm started to move when I first started the car and continued at slow speed, stop lights. It was real slight and not too noticeable. I noticed it goes away once I hit highway speeds of 60-70mph for a few seconds and then returned to slow speeds/stop lights. Otherwise it continues for all in city trips since i can never reach that higher speed. At one point the check engine light went on and it read p0100 i believe and multiple random misfires. But that light eventually went away a day or 2 later, or my buddy reset it im not sure.

I read another guy on this site had the same issue months back (SRX) and a couple others. I guess motor mounts are likely to cause the problem. But that doesn't make sense to me if it goes away once I hit 60mph. Clogged injectors? I guess one of the motor mounts is hydraulic/oil.. possibly ignition coil? Any help is greatly appreciated, thanks.


Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...