Originally Posted by SatinSilver
Originally Posted by The Critic
My guess is that your service intervals are too long and the UOAs are not giving you the full story.
More to the story:
Originally Posted by dkryan
My wife's 2005 Highlander with 135k well-maintained miles on it has a problem.
It has run exceedingly well up until this afternoon. When she first started it in the garage, a horrendous rattling sound came from under the hood followed by a white smokescreen from the tailpipe.
She immediately shut it down. I checked under the hood but could find anything that was obviously amiss.
I started it, fortunately there was no rattle, but the air was heavy with the smell of fuel. When I backed it out of the garage, the
white exhaust emerged from the tailpipe again.
I'm afraid to ask "what just happened?" Because it will logically be followed by "how much?"
And.....another OP. Not sure either one was really resolved since no update was posted in either thread. Maybe it needs a valve adjustment and new oem pcv valve since both of those often get overlooked at high miles.
Originally Posted by dkryan
2005 Highlander with 142k well maintained miles.
The timing belt was changed at 96k, as was the pre-tensioner, the idler pulley, the belts, plugs, and the water pump.
Yesterday, I got out of the SUV to get something out of the garage. As I walked by the front-end (the engine was running) I immediately noticed the engine sounded louder than normal.
I popped the hood and isolated the noise to the area of the belts/pulleys (I think). I shut off the engine and checked the belts and tension, all of which was fine.
The "sound" seemed metallic to me and had me thinking "bearing."
I took the SUV to my indy mechanic and he agreed there was a mild but noticeable metallic sound.
Unfortunately, we both agreed the sound seemed to emanate from under the cam cover which is fairly close to the pulleys.
I made an appointment for two weeks from now. He's going to pull the belts and run the engine to see if the noise goes away. If so, that sounds like a cheaper fix.
If the noise remains without the belts on, he wants to remove the cam cover and go from there.
I have not seen any Toyota forum comments concerning any issue involving the cam with this vehicle.
Any thoughts on possible causes?Thanks!
DOH!
Thanks for reminding me, Satin.
The first issue involved my wife starting the SUV and immediately backing out of the garage and shutting it off. When I finished working on the garage door opener, she started it and immediately pulled back into the garage.
Total run time out and in? Maybe 30 seconds.
My ASE buddy said we flooded the cylinders with fuel. Nothing was really burned off, so when I started it a short time later............
No codes or CEL and once I got it out and ran it, no issues.
However, to my second post, Satin.......
......apparently the dumba$$ who installed the timing belt 18 months previous to that date somehow bent the timing cover. The pulley was rubbing ever so slightly against the bent metal. Hence the noise my wife could not here.
Neither issue was fatal, fortunately.