Last post on Apr 21, 2013 at 6:02 AM
You are in the Toyota Avalon
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Toyota Avalon, Interior, Sedan
#3291 of 3628 Perhaps pinging on 2002 XLS
Jun 08, 2006 (7:19 pm)
Love this car as original owner with 56k, but it has pinging type noise on acceleration at lower speeds, an automatic. Mechanic says Toyota says try premium. Did that for awhile and noise was not as noticeable. Got off that about six months ago and back to gasahol 89-90 octane again and now problem seems a little worse. Back to this tank 92 octane and still a problem. Anyone else have anything like this?
Regular toyota oil and filter changes usually 3000 miles.
Nothing in manual about needing premium gas and it is more expensive. Seems Toyota problem. Also have a new 2005 XLS and use 89 octane with gasahol, as does dealer for new Avalons. With gasahol subsidies, that gas makes sense. Helpful comments please.
#3292 of 3628 Re: Perhaps pinging on 2002 XLS [jesch1]
Jun 12, 2006 (7:52 am)
Have an O2 with 82K. No pinging ever. Have them check the values, or similar engine componetry.
#3293 of 3628 Check engine light comes on after timing belt change
Jun 12, 2006 (4:52 pm)
My check engine light came on after timing belt was changed. It has never come on before, 89k miles. He wants to tear into it again to see, although he manually cleared the code/light. What could have caused this? The car has run perfectly since new(2000).
#3294 of 3628 Front end shakes at high speed after pads changed & rotors turned
Jun 12, 2006 (4:54 pm)
My disc pads were changed and rotors (supposedly) turned, but now my steering wheel shakes at 60MPH+. Pads were high ends ceramic. Should discs be turned again/checked?
#3295 of 3628 Re: Check engine light comes on after timing belt change [lschoelkopf]
Jun 12, 2006 (5:33 pm)
lschoelkopf, may I ask how much it cost to change the timing belt? And how did it take?
#3296 of 3628 Re: Front end shakes at high speed after pads changed & rotors turned [lschoelkopf]
Jun 12, 2006 (5:42 pm)
Start with the easy stuff: check the tire pressure and then the tire balance. Maybe a wheel weight fell off.
But if did not do this when you took it in, and does it now, the problem could easily be the rotor(s). If they were turned improperly, and this happens, you get vibrations, especially when you apply the brakes. The pads do not move in rotation so if the vibration occurs with no brake pressure, it's probably not the pads. (But they could be dragging from poor installation, causing rotor problems. Possible.)
Before attempting to turn the rotors again you need to measure the thickness of the rotor. There is a minimum to be safe and work properly. Check the books. Only so many turns, then you get new ones as the rotors get too thin. Usually 3 turns max on the front is safe the limit. Maybe only 1 or 2 if you went too far before a brake job. Newly turned rotors are bright, shiny and smoothe to the touch.
Forum member *abfisch* drives an Avalon with front end and other suspension upgrades and may have more ideas here...
#3297 of 3628 Re: Front end shakes at high speed after pads changed & rotors turned [fin]
Jun 15, 2006 (6:53 am)
Ummm. All correct fin, but do not advocate "turning" rotors. I only replace them. Cutting them thin the metal and you wind up replacing them sooner anyway, and the labor is intensive, whether you do it yourself or not, especially if you live in the North where rust is the enemy of brakes. i cannot tell if this member replaced not only pads but rotors nor can I tell if the pads were "bedded in" properly so it is difficult to ascertain. But I am sure it is the rotor either way.
#3298 of 3628 Re: Front end shakes at high speed after pads changed & rotors turned [fin]
Jun 15, 2006 (8:55 am)
Loosen all the wheel lug nuts and have them re torqued at the correct spec found in the back of your owners manual. If they are over torqued they can deflect the aluminum wheel and stretch the lugs and eventually warp your rotors.
Toyotas are very sensitive to lug nut torque and this has caused me vibration problems in the past.
If this does not solve the problem, rebalance the wheels because the wheels may have been deflected during over tightening and are now out of balance, and then remount with the correct torque.
The best balancing system is Hunter RoadForce. Many Toyota dealers have them and so do Discount Tires.
#3299 of 3628 Re: Front end shakes at high speed after pads changed & rotors turned [alan_s]
Jun 15, 2006 (1:46 pm)
Because I have most of my tire work done at a shop that does high end and performance cars, any thoughts of improper torque never crossed my mind. But, you are right. Checking for possible wheel damage and proper torque specs, along with balance, is a good idea here.
#3300 of 3628 Re: CHECK ENGINE VSC & VSC OFF LIGHTS AGAIN [par_pa]
Jun 17, 2006 (10:25 am)
Hi, I read your reply to the Avalon 2000 problem. My sister just had a similar experiance. The dealer wanted almost $400. I was looking for a part price on the net for the Mass airflow sensor which the dealer said it was. Are we talking about the same thing and where is it located to make it easier?