Last post on Oct 04, 2013 at 10:58 AM
You are in the Toyota Avalon
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Toyota Avalon, Engine, Sedan
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#284 of 367 Re: Engine RPM question [rpfingsten]
Aug 26, 2008 (5:38 am)
big ole torquey (and relatively fuel inefficient) V8s will generally pull something less than 2000 rpm at 70 - maybe 1700 or 1800. They can do this because of all that torque available at those lower engine speeds. The Toyota 2GR OTH is a free revving smaller V6 that is actually happier (from an operational efficiency point of view) at engine speeds significantly more than that - what is remarkable about the engine is that the CVVTi valve timing and ignition control systems that are built into the engine can effectively broaden that torque curve to rival that of a V8 in terms of lower engine speed torque availabilities so that the Avalon can be the same 'pleasant' highway car as those V8s and still be able to return FE in the 30s. The 2GR is easily the best part of the Avalon and a remarkable achievement for Toyota.
#285 of 367 Re: Engine RPM question [rpfingsten]
Aug 26, 2008 (6:26 am)
These are my observations (confirmed) while driving on flat surface and no passenger/cargo loads
60 mph = 1600 rpm
65 mph = 1900 rpm
70 mph = 2100 rpm
75 mph = 2200 rpm
#286 of 367 Cam Timing 97 Avalon
Sep 14, 2008 (2:12 pm)
I am reassembling a 97 avalon v6 engine and am using a Haynes repair manual. When installing the cams it says on the Right-Rear head to align the 2 dots of each rear cam gear so that they point together. For the Front-Left head they say to align 1 dot of each rear cam gear together. The 1 dot is 180 degrees apart from the 2 dots.
When I do as they say the rear-right head appears to have the pointer on its timing belt cam gear aligned 180 cam degrees out. When everything else says TDC, this cam gear is 180 Cam degrees out. The intake valves are in a position to begin opening.
If I set the rear cam gears so that only 1 dot is pointing at each other, then the timing belt gear for this head and all the valve are in the TDC position.
Is my logic correct and the manual wrong? If not why?
Terry in Colorado
#287 of 367 Re: Cam Timing 97 Avalon [teryliv]
Sep 26, 2008 (3:36 am)
Did you get your car back together? If so what was your outcome with the gears. I am doing the same thing an 02 Camry and have the exact same issue with the right bank timing gears. I am going to try and finish it today and have put it together with both heads using the one dot mark. Regardless of what the Toyota experts have told me, It has to be right or the front timing gear would have to go in 180 degrees off. I don't think there is a lot of DIY's out there changing head gaskets etc that are having to remove the cams. If you were changing the belt only you wouldn't be able to even see the gears so you wouldn't know if they are right or not and would only use your camshaft belt gear marks to do the job. I will post a follow up to this hopefully tonight if I get it done and will let you know. My email is: hunterctcn.net if you want to send me a direct response.
#288 of 367 Re: Cam Timing 97 Avalon [ttyler2000]
Sep 26, 2008 (6:34 pm)
I told you I would post back as soon as I got the car together and running. Since you already know the issue with the manuals vs. the actual job, here is what I did on my 02 Camry V6. I set both sets of cam gears to match up to the 1 dot marks which made my timing gears all line up with the corresponding marks, put it all together and fired it up. It was right. I see yours is a 97 and mine is an 02 so in that 5 year span I am betting there is more that just 2 vehicles out there with the same issue. Hope this post helps others. The way I see it is bring the engine to TDC, use a compression gauge on the #1 cylinder to insure you are on the compression stroke. Intall your camshafts by matching up either the set of marks as long as they are the same ie; either 1 to 1 or 2 to 2 tighthen your caps and forget it at that point. When you are ready to install your timing gears if the cams are not in the correct position to install they gears with there coresponding marks then rotate it 180 degress so the marks are right on both heads then install your belt period. In the future I will always look at the gears before I pull the cams just to be sure. But I can honestly say the book is not right in this particular case.
#289 of 367 Avalon Engine Squeaks Loudly at Start-Up
Feb 08, 2009 (8:33 am)
I have a 2000 Avalon XLS, 6 cyl. Just recently it started squeaking very loudly after starting up, The squeaking gets louder and louder until for about 25-30 seconds, after which the rpms or the general stability of the engine makes the squeaking go away. The squeaking usually happened while in reverse and does not go away until I push the rpms above 2k consistently.
What can I do to fix this. I leave the house at 5:45am and my wife can hear the squeaking very prominently in our bedroom. I can only imagine what my next door neighbors are thinking...
#290 of 367 Re: Avalon Engine Squeaks Loudly at Start-Up [dcbishop]
Feb 08, 2009 (4:55 pm)
By the feel of it, it sounds like the fan belt is either loose or worn out and is slipping.
Also possible that the bearings on the alternator are shot.
Check both of these items.
Just one little trick...before starting the car, drop a few drops of plain dishwashing detergent on the belt and the drive pulley and see if it makes a difference. If it does, your fan belt is worn out and pretty shiney looking on the sides.
Just my penny's worth. Good luck!!
#291 of 367 Avalon Oil Leak-VVT Oil Line Issue-TSB
Feb 28, 2009 (7:01 pm)
I have a 2006 Avalon Touring Sedan with 27k miles. Last weekend, the red oil light came on. I opened the hood, and oil had sprayed all around the engine compartment. Most of the remaining oil drained while I was waiting for a tow truck. The Toyota dealer indicated that this was a recurring problem with the VVT (variable valve timing) line, and they already had 3 other Avalons in the service department with the same problem--and repair parts were backordered. Through an internet search, I discovered that a Technical Service Bulletin has been published on this for the 05 and 06 Avalons. Fortunately I am covered by warranty and a service loaner is being provided. Has anyone else on this forum experienced this problem?
#292 of 367 2000 Avalon check engine light
Apr 20, 2009 (7:51 am)
I had the check engine light come on recently, and thanks to this and other forums was able to diagonse and fix the problem. I wanted to share it with others in the event you have the same problem.
Problem: check engine and VSC warning lights came on right after I had the car alignment checked and tires balanced at about 88,000 miles.
I had the check enginer code read by Pep Boys (for free) and it was code P0171, "system too lean bank 1". That was the only code. I had read on a forum that the code means the Mass Air Flow sensor (mounted just after the air cleaner) needed cleaning. I disconnected the electrical connector cable for the sensor, removed the sensor, and sprayed CRC QD electronic parts cleaner (Pep Boys, $5.99) onto the little wires inside the Mass Air Flow sensor without touching the sensor (the sensor wires are very small and sensitive and should not be touched). I then let the sensor dry (about 10 minutes) and reinstalled the MAF sensor and reconnected it. I also removed the 15 amp EFI fuse in the fuse box (under the hood, next to the air cleaner) to reset the check engine light. After a week and several driving trips the check engine light remains off and the car runs as good as new.
I had read on other forums that the reason the VSC warning lights came on is that when the tires were removed some error code was generated that said rear tires were spinning relative to the front--but these codes were in the background and the warning lights did not come on until the check engine light came on. When I fixed the check engine light as described above the VSC warning lights went out and stayed off. Some of the other forums showed pictures of the location of the MAF sensor, what it looks like dirty and after cleaning, and other detailed steps if you need more information.
I hope this helps someone since I was able to do this myself for $6 instead of having the dealer replace the sensor for about $350-400.
#293 of 367 Re: 2000 Avalon check engine light [selffixer]
Apr 20, 2009 (2:41 pm)
I had exactly the same problem, but after I drove home and parked the vehicle overnight, everything was OK.
At 88,000 miles I am surprised that you haven't yet run into a problem with the Idle Air Control. Unlike the conveniently positioned MAF, the IAC is on the underside of the intake plumbing and involves quite a bit of work to extract it and clean it. If you ever need to do this job, I have a step-by-step on this site.