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Wagons Scion xB Scion xB Maintenance & Repair Scion xB Engine Problems
60 messages, Last post on Nov 11, 2009 at 9:51 PM
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Replying to: yoda8391 (Jul 13, 2006 6:58 pm) Hydrolocking means that water gets into a cylinder (through the open cold air intake). The OEM air intake and filter are designed to prevent this. Water is incompressible and suddenly slows the engine, which bends or breaks the connecting rod in that cylinder. A little bit of water will bend the rod, and enough water will break the rod. If the rod bends, the engine keeps going but may make noise and vibrate. The bent rod is weak and has shortened the stroke on that cylinder, which will eventually cause it to fail. If the rod breaks, the engine also keeps going, which thrashes the broken rod around and causes more internal damage. Often the engine jams up and stops, and people often refer to it as "seized". Seizing, however, is technically when the piston expands and sticks in the cylinder from overheating or lubrication failure. It is almost unheard of in water-cooled engines. Often a seized engine will move again after cooling. But if seizing is bad enough, the piston will be stuck until the engine is disassembled. Many people have hydrolocked their Scions after installing cold air intakes and then driving though a little water. Scion is very familiar with claims arising from this.
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Replying to: aatherton (Jul 14, 2006 5:27 am)
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Replying to: yoda8391 (Jul 14, 2006 7:37 pm) The damage caused by hydrolocking is unique to water in a cylinder. It is like the piston meets an incompressible plug of steel, bending or breaking its connecting rod. |
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Replying to: yoda8391 (Jun 30, 2006 7:47 pm) This new fuel conserving oil 5W30 is extremely slick and has no ZDP. It is only good for increased fuel mileage. It gives the engine much less protection. Number 11 said he has 40,000 with no problems, but he has used synthetic which is far superior to the 5W30 10W30 Fuel Conserving oils. I have been using 15W40 Castrol Diesel oil. The mpg did drop 1.6 mpg, but the engine runs great. 33,000. |
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Hi I have been having intermittent starting problems with my new scion. Every once in a while the car will just turn over many times, and then start. i have had it in 3 times for service, and they have no idea what is wrong. If anyone else is having this problem please reply so i can be backed up with this at the dealership. Or if anyone has any ideas as to what is causing it please reply. Thanks Scion06
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Replying to: scion06 (Jan 12, 2007 5:52 pm) |
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Bought an '05 xB with 14k miles. Shortly afterwars, started getting an intermittent metallic rattling sound. It goes away if I push in the clutch slightly. The sound is engine speed dependent, barely there at idle. Does it in neutral and any gears. Intermittent, but happening more often. Also, sometimes my engine wont turn over at all; I have to bump the car very slightly in gear, then fine. Are the two related? I'm thinking maybe so. |
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Hi, I just bought a 2008 xb and love it! However I am having problems with the automatic transmission. I can really feel the shifting from one gear to another especially from 0 to 35 miles per hour. I also feel it dragging when coasting down a long hill. Most of the time I have to keep my foot on the accelerator to keep it from dragging then it shifts real hard. I'm taking it to the dealer but I'm wondering if anyone else has this problem.
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I bought a 2008 xb and had a sunroof put in. I noticed when driving it especially around 30 miles an hour that it sounds like a helicopter is in the car. Very booming and loud. If I crack my side window it goes away. Has anyone else had a sunroof put in. I told the company that put it in about it and they said as far as they know they are the first ones in Missouri to put in a sunroof on a xb so they don't know why it's doing this. Thanks
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Replying to: slamon (Aug 15, 2007 10:20 am)
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