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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Dec 03, 2007 (12:27 pm)
I own a 1998 Toyota Avalon XLS and my check engine light recently went on. When accelerating, the car studders and shakes and takes a very long time to get up to the desired speed. A few times, the speed actually started to go down when I accelerated. It does run fine once it is up to higher speeds but the problem continues to occur in first and second gear mostly. If anyone has had similar problems with their toyota avalon or knows what to do to fix it, please let me know immediately.
#260 of 367 Re: Strange noise when starting engine (sounds like a relay) [sofl06avalon]
Dec 26, 2007 (1:20 pm)
I recently purchased a 2005 Ltd. and I performed the test as you described. It appears you are exactly right and the the steering locked with the noise even after waiting as much as a minute or two before opening the door. Now that I'm convinced, where do I go from here to have it corrected and did you have your's repaired?
#261 of 367 Re: engine sludge settlement [oldyotadriver]
Dec 27, 2007 (7:06 am)
Regarding the rattles you have noticed...check to see if the passenger seatbelt is twisted. Another person identified that as a source of rattles and I found it to be the case with my '05 Avalon. Just untwist and it quiets right down.
#262 of 367 Timing Belt? Chain? 2003 Avalon
Jan 01, 2008 (1:59 pm)
I have a 2003 Avalon. The maintainence charts say nothing about belt replacement.
Are there recommended time intervals for belt replacement (assuming it has a belt)?
Mine is low mileage.
#263 of 367 Re: Toyota Avalon [retrojordan23]
Mar 09, 2008 (8:58 am)
I started having similar problems with shuddering at low speed along with "Check Engine" and "Trac Off" lights in my 98 Avalon last summer, but after the car warmed up it would go away. Initially my garage thought it was a clogged fuel injector and recommended using a can of Seafoam with every tank of gas for a couple months. This did seem to help, but after the weather got colder, the shuddering got worse. By February, something had to be done as it continued to shudder even after warming up. Fortunately, it wasn't an injector, it turned out to be one of the three "pencil coils" that are mounted on top of the engine. These days, rather than have one central coil feeding all the plugs through a distributor, they put the coils right on top of the spark plugs and use a computer to send low voltage pulses to fire them. This minimizes the number of places where high voltage wire can break down. On the Avalon, each coil is shared by two spark plugs. I think the fuel injectors get fed from the coils too although this may just be low voltage wiring that passes through the coils. My middle coil was bad and that's why I was getting misfire error codes on cylinders 2 and 4. Replaced the coil and all is well. My garage charged $117 for the coil and $89 for labor which was mostly for the time spent diagnosing the problem. A Toyota dealer probably would have charged at least twice that. I have seen new coils for the 98 Avalon on the web for as cheap as $28, but you will probably have to have someone with sophisticated ignition diagnostic equipment to tell you if that is the problem and which coil it might be.
#265 of 367 Re: Engine oil flush ?? [rmsachs]
Apr 06, 2008 (11:49 pm)
The only engine flush in a everyday car is the oil, transmission, radiator, power steering, and maybe a brake flush. but most of those have nothing to do with the engine it self. and yes once the oil sludges its very hard to fix externally. they do make some stuff to put in your oil. I dont know what it is called but it worked for me. My instructor at school said it not bad to add some every oil change and change the pcv valve everytime too.
#267 of 367 Re: Noisy engine at idle [fjacks]
May 15, 2008 (8:02 pm)
I also have a 06 Toyota Avalon Ltd with a noisey engine when cold that sounds like a diesel until it is warmed up. Especially when accelerating. Did you ever find out the problem? I have been warming up the car for 10 minutes in summer and 15 in winter and I have been able to live with it. With the current cost of gas that's becomming expensive. I've taken it to the dealer but I doubt if they will admit anything is wrong. I use mid-grade Chevron gas.
#268 of 367 Re: Noisy engine at idle [fjacks]
May 16, 2008 (1:57 am)
Hi, we have the same problem, took it to Dealer and his top mechanic said no problem and that if something did happen it was under warranty. So I went home and called Toyota and made a formal claim. I suggest you do the same, they will give you a number. I am convinced they know that they have a problem but are not willling to admit it. I told them I had a Saturn with over 100,000 miles on it and a Ford f-150 with over 110,000 and had quieter motors than the Toyota Avalon.