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Scion xB Engine Problems
I was wondering if any one else has had a Scion xb engine problem. I took my scion to a scin dealer and the told me i blew my engine because it hydro locked due to water enter the intake through a custom installed intake. When I took the engine to another mechanic, three of them, They told me that there was no way that water caused my engine to seize up and blow a rod. Has anyone else had this problem?
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I guess "blow" could mean either bend or break. But I think it would only happen to one rod and not progress to more than that. In a hydrolock, the engine stops instantly. The owner called it "seizing", but seizing is a completely different problem.
Hydrolock due to stock or aftermarket intake is not limited to Scion, this is a known problem with many makes of vehicles when aftermarket intakes are added, and some stock vehicles with a low intake are known for this issue when drivers do not use reasonable caution and drive thru water.
How are your service records?
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.
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.
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.
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
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.
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.
http://i49.photobucket.com/albums/f280/vintagefortytwo/xB%20Sunroof%20and%20Dash- /xBSunroofDeflect.jpg
Have a 2008 xb scion. Question:
where is it; lower engine block, or is the filter remote from the engine block.
Thanks in advance.
Trophy for producing the most Junk. The customer is never right. They already have your money, just go away. It can be repaired, but why would they.
Hope your problem has been resolved.
I have an 08 purchased in September with 9000 miles.
Yesturday I went to start it and it "wouldn't fire".
Followed the "flooded" starting directions and it would not start, the starter just kept turning over with no apparent "spark."
After towing to the dealership, they claim one of their mechanics started it right up, and it must have been flooded. I was shocked, I've tried to start a flooded vehicle before and it never just turned the starter with no attempt to spark.
Hoots
Sounds like you have to be a Toyota mechanic to start an xB. Scion sales will
drop to zero after all of the mechanics buy one..
You just caught Toyota in their 1st lie. Very Sad. David
The dealer is in Bristol Tennessee.And Scion tech's were no help either.
I have a strange problem. My 06 xB is still under warranty but since I only have 1 day off and don't want to spend it at Scion let's give me help:)
Ok, when turning left, not ALL THE WAY but about 3/4 or so I get a vibration I can feel in my steering wheel. There is a very low growl/hum with it, very low. I can feel it more than hear it though. I had the same factory tires put on it about 2 months ago, and they are still in great shape and it didn't do this till just about a week ago. I haven't checked the pressure yet (just though of this but it's late) but was wondering if anyone here has heard of this problem or ever went through it.
Let me know!
A day later the dash lit up again - we drove it until a few days ago. Took it to the 1st shop that had replaced the ignition coil - they replaced the same coil under warranty. Today the dash lit up again.
I'm wondering what has been missed in the diagnosis at both shops. If it's the same coil - whats causing it? Both Toyota and a separate reputable shop in town must have missed the root cause, I'm thinking?
Anybody have a similar experience?
Toyota in town seems more interested in selling a thousand dollars worth of maintenance work that has already been done in the other shop.
btw, my xB only has 5700 miles on it.
The check engine light came on recently. Took it to Toyota, the camshaft timing gear assembly is bad.
The man in the service department said he had the last problem about six months ago with another XB.
Not the quality that Toyota always advertises. And most reviews show no major problems with the XB. What gives?
Since it's an overhead cam, did the teeth on the gear fall off? Is the timing belt the fault? Did the gear crack?
Ask the service dept. what has to be replaced and why.
Thanks, David