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Toyota Corolla Maintenance and Repair



  • To lower Nox you should have fresh oil and to decarbonize your engine you can use fuel cleaner by putting trough the trottle body while engine running. You can use half a bottle and little by little. Unless you have a vacuum leak, this will make a rough idle at low Rpms. Check all your hoses for vacuum leaks. Also its a good idea to use a bottle of fuel cleaner that you can put with a full tank. You can get it at Autozone or Kragen. Don't get the cheaper kind 'cause it might not work as good. If you didn't get new spark plug wires its better to check your wires with an ohm meter 'cause if they're not within specified range for your car, the car might run good but it makes big difference on Nox readings. If you drive your car almost every day, it's advisable to change your wires every two years.
    O2 sensors are supposed to be changed at 40k to 50k of life. I had a sensor was reading okay and the car wouldn't pass smoke check until I changed the sensor.
    Catalitic converters are supposed to last a long time. Although if your O2 sensor was bad it will shorten its life. They also have a life warranty of about 50k miles. Unless it was the original which should last longer.
  • llumedllumed Posts: 3
    I too have a high pitched annoying whistle at freeway speeds. It sounds like it comes from the dashboard or speedmeter. its a 2005 corolla S. It is aweful. I don't think my dealer has done much to try to fix it. The only way I can get it to stop is to slow why way down. Has anyone called toyota or found a cause?
  • I have a 98 Corolla, and the Gas pedal is starting to stick, has anyone experienced this problem and if so, what was done to fix it?
  • mcdawggmcdawgg Posts: 1,679
    Have you ever had the throttle body cleaned?
  • This question will probably be my answer but where exactly is that? No, I have never had it cleaned.
  • dadof6dadof6 Posts: 61
    This is serviced as a unit except the mast that threads into the base. Go see a local body shop for an estimate. The last I knew the antenna is an assembly from the base in the roof to the radio & has an amplifier in it. Lotsa bucks. Good luck.
  • dadof6dadof6 Posts: 61
    We have seen stuck piston rings on these engines that leads to a quart every 500 miles of use. You need a "ring job". The timing chain is a "fix it when it's noisey" thing and not a scheduled maint. item. The ring job with timing chain runs about $2000 with shop rates of $60/hr.
  • dadof6dadof6 Posts: 61
    I have seen most of these noises coming from front doors that don't fit tight enough. When you hear the noise push out alittle at the top of the front doors--this should change the noise confirming the diagnosis AND which door is out of adjustment.
    The only other thing I have seen, and it is rare, is windsheild mouldings that buzz at higher speeds. This noise is very hard to duplicate so it may be just easier to do the repair which is to have a body shop reseal the mldgs to the glass.
  • dadof6dadof6 Posts: 61
    The Tacoma overfender gaskets falling off was a problem unique to certain Tacomas & addressed in a TSB.
    You Corolla should be fine.
  • dadof6dadof6 Posts: 61
    Is the noise on the passenger side of the engine compartment? Sounds like a timing belt loose from wear or stretching.
  • dadof6dadof6 Posts: 61
    I would also recommend a long hard hiway drive (70 mph for 2 hrs) before the next inspection attempt. I use Chevron Techron additive in the gas tank exclusively for carbon buildup.
    55,000 miles on a 1991--is that a misprint ?
  • dadof6dadof6 Posts: 61
    The noise is coming from the serpentine (a/c) belt tensioner and will get worse with miles. The more work the belt does (a/c on) the more noise you'll get. The colder the engine is the more noise you'll get. This is an expensive repair and has been a problem with these tensioners for years. Make sure to have it replaced before the 3/36 warranty is over.
  • My mother just purchased an 07 Corolla, the base model. She likes the car, but there are a couple of drawbacks for her. She is very short, and raises her seat almost as close to the steering wheel as you can go. So,by this time, she is too far in front of the center console to use it for an armrest. She's looking for pillows to purchase to prop in the area of the armrest for long trips.
    I thought I remembered seeing on one of the Toyota forums that someone replaced a Corolla armrest with one from another model of Toyota. I don't know where that discussion was. I will try to do a search to find it, but is there anyone out there who knows of a way to change out the console to something that is larger in height or length?
    Thank you all for your help!
  • I have this same problem as well with a 1998 corolla. I can lock and unlock the steering column but the key will not turn to start the ignition. The car runs fine once the key turns and ignites it. Any ideas?
  • mcdawggmcdawgg Posts: 1,679
    Follow the air intake to just before the engine. It'll cost less than $50 at even a Toyota dealer.
  • alex24alex24 Posts: 54
    hey when the key will not turn ,try shaking the steering wheel left and right, that should work. have a nice day !
  • I have a 2004 Corolla S and just recently (actually as the weather got colder in the morning), the engine is reving intermittently while it idles. Any suggestions?
  • Has anyone else had to replace a rear hub assembly? I have 53,000 miles on my Corolla S (bought it new in 2004) and the guy who replaced it last weekend said it's the 3rd one he's done in 2 months - also his parts guy says he stocks them like crazy because he can't keep them on the shelves. Seems that if there's this big of a problem, Toyota should do a recall...
  • I have the exact same problem, and the dealership has never heard of it before. Any suggestions?
  • did you ever finf out what was causing the Overdrive off light coming on & off? How did you fix the problem?
  • kenymkenym Posts: 405
    The overdrive switch is on the gear shift and very easily bumped when shifting.
  • My boyfriend wants to know if it's still okay to change the ATF at over 100,000 mile? He's been told he would be wasting his time if he did that. He has a 1998 Toyota Corolla. Any suggestions? Thanks
  • dadof6dadof6 Posts: 61
    Toyota has a Technical Service Bulletin on this.
  • dadof6dadof6 Posts: 61
    There is a TSB on this too.
  • They do? Where would I find that? I already got it fixed...
  • dadof6dadof6 Posts: 61
    Was it fixed by a Toyota garage? If not contact Toyota national to see if they can do anything for you.
    If a Toyota garage fixed it contact them and ask them to check their TSB's.
  • We had a fire that burnt the wires (harness) coming from the battery and extending into the dash. We are replacing it, but are unsure as to where the 3 fuses behind the battery (30 amp, 100 amp...) attach. :confuse: :blush: We're sooo close!
    Any help? Please?
  • I have a great running Corolla 2000. Since past year the car battery dies off if the car remains unoperated for a couple of days. I have replaced the battery twice, but no luck.

    The Kragen mechanic checked the altinator and seems healthy.

    Please help.
  • I have problems with my Corolla type S 03. The "check" sign turned on and there's no turning it off. I took it to the local dealer for repair where he turned off the check sign by resetting it and said that the problem lies on the low octaine in the gasoline I once used, when my car was in the red line. This caused several problems such as a unusual smell of gasses expelled when acceleration occured, as well less performance. He supposedly solved the problem and the check sign was turned off. However, in a few days the check sign turned back again and the unusual smell came back.Any sugestions on how to solve the problem? I know that a low octaine fuel may cause these problems but take into account that I've been using high octaine fuel for some time now? Any suggestions, please let me know... :confuse:
  • 488488 Posts: 9
    The shop manual says that one should use jack stands with a rubber attachment on the corolla. Any idea where to find such an item. I took a block of hard wood and grooved it so that I could use a standard hydraulic floor jack to raise my cressida without digging out the service jack, wondering if this is the way to go with the corolla and jack stands? On my corolla when using the service jack only the inside of the u is lifting the car as the floor is about 1/4 inch lower on the inside of the "channel" the u fits around. This is at all four jacking points. Any toyota mechanics on this board that could shed some light?
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