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Toyota Avalon Basic Maintenance Questions

290 messages, Last post on Jun 16, 2009 at 8:51 AM
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I have a 1995 Avalon, and would like to change the spark plugs. The front three are cake but the rear three are under the intake manifold. I have two questions: -- Must I take off the intake manifold in order to be able to change the rear plugs, or can it somehow be done with the manifold in place? -- If I only manage to replace some of the rear three, will it cause any problems? (My gut is that it will cause some kind of imbalance if some plugs are old and some are new.) Any help would be greatly appreciated.
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I had a 1997 Camry that described the rear (3) spark plug change as "may be necessary to remove the intake manifold". However, I found that with various combinations of long and short extensions and a universal connector, it was actually pretty easy to get at all the plugs and change them. I came up with a workable combination for all rear plugs before I actually removed any of them. You are correct about the need to change all plugs at the same time. I seriously doubt that dealers remove the intake to change plugs on these engines. |
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| the dealers may be well aware that these days changing spark plugs is mostly a waste of time, money, and knuckle skin. | |
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Replying to: zizzer (Mar 02, 2008 6:35 pm) http://members.cox.net/n0v8or/avalon_oil_change.pdf |
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Replying to: markjs (May 05, 2008 12:08 pm) It wasn't easy -- what should have taken a half hour took three hours! -- but I got it done. It's unbelievable that you can actually maneuver everything around so that you can replace the rear three plugs, but those clever people at Toyota have made it so that it's just barely possible. The trick is to have enough tools so that you can situate your wrench at just the right distance from the plugs (there is only one spot where it will work). So, you have to have at least a short and long extension for your socket wrench. Also, it's important that they all fit together tightly so that you can extract them if necessary (and, when you put a plug back in, it's necessary). |
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I have a 2000 Avalon w/70k miles. The Toyota dealer recommends an engine flush and a Valve Clearance Check be performed. They want almost $500 for the Valve Clearance Check and I am concerned about the engine flush. Does anyone have any suggestion about whether or not these would be required or have any experience with either? I also thought that the 2000 Avalon had VVtiming w/hydraulic lifters; if so, shouldn't they be self-adjusting? Chic
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Replying to: arif_cse (Apr 29, 2008 10:29 am) |
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I have a 2008 Avalon. Specifications in the manual call for 6.4 qts of oil with a filter change. Problem is that after after draining the oil and installing a new filter cartridge, when I have added back only 6 qts, the dipstick shows full or a little over. Should I go with the manual requirements and put back 6.4 regardless of what the dipstick indicates or should I believe the dipstick that the engine has a full load of oil. Thanks, dpm4
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Replying to: chicz (Jul 07, 2008 8:26 am) But first, why do you need these services? Perhaps loss in horsepower? Sound stemming from the valve area, suggesting unwanted friction? Why the need of flushing the engine? Engine flush (oil) suggests that at one point in time during or after the flush (depending how the flush is done) your engine is going to start somewhat dry. This is not the same as when first starting your car in the morning. Engine flush ain’t a good thing unless that engine block is sitting at the manufacturer’s plant. Amaury ’08 Limited
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Replying to: dpm4 (Jul 18, 2008 7:57 am) |
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