started up, sounded like a machine gun and was shaking.
#17
Unrelated, but has your gas gauge always jumped around like that when starting the car? Shouldn't it just quickly go to the marking and stop? I've never seen that before... Any new news on your issue? I once had the same exact noise on my maxima after the car had sat for a couple of months. Exactly the same noise. But it smoothed out and went away and never came back. But I sold the car and it ran fine. Not sure what it was, but it was exactly the same noise like you posted. How long was the car parked for?
#18
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Unrelated, but has your gas gauge always jumped around like that when starting the car? Shouldn't it just quickly go to the marking and stop? I've never seen that before... Any new news on your issue? I once had the same exact noise on my maxima after the car had sat for a couple of months. Exactly the same noise. But it smoothed out and went away and never came back. But I sold the car and it ran fine. Not sure what it was, but it was exactly the same noise like you posted. How long was the car parked for?
Thanks everyone that has given different ideas. I'll update the thread when I know more.
edit: I forgot to mention to Lust4Lexus, you can also see the information display does not work. The thing that shows you your mpg, etc. On the non navigation models. I think it's time to sell this car, lol. It sucks because at the time of buying it, it was the only pearl white available.
Last edited by Dispin; 06-06-13 at 02:30 PM.
#19
Lexus Test Driver
I'd say its definitely not the timing belt jumping teeth. I don't even think that's possible in this motor. If it did jump a tooth then the belt would have to be trashed and/or it likely wouldn't have made a consistent knocking noise like in that one video, it likely would have just stumbled and quickly stalled. I don't think it would be a stuck valve either. I think it's possible it's something in the bottom end, which of course isn't good. Dumb question but have you pressed the display button (think that's the correct one) to cycle through the information display? Keep us posted.
#20
Lexus Champion
Why the guessing around with the possibility of causing serious damage? Just get it hauled to the dealer and let them determine the problem. Then you can make a decision as to what to do.
#21
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I'd say its definitely not the timing belt jumping teeth. I don't even think that's possible in this motor. If it did jump a tooth then the belt would have to be trashed and/or it likely wouldn't have made a consistent knocking noise like in that one video, it likely would have just stumbled and quickly stalled. I don't think it would be a stuck valve either. I think it's possible it's something in the bottom end, which of course isn't good. Dumb question but have you pressed the display button (think that's the correct one) to cycle through the information display? Keep us posted.
The reason I was trying to find out the issue before hand is to know where to tow the car to. If it was something simple like a spark plug, it didn't matter. If it was a rod knocking or similar. It would have to go somewhere specific. I don't know a good local mechanic yet.
Video of it running (turn your volume down a bit, it's loud)
Last edited by Dispin; 06-07-13 at 09:42 AM. Reason: embedding video
#23
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Kind of a thought. But I've had cars that sit for awhile and when you go to start them up they will tap.
Oil has all drained to the bottom of the motor. I dont know exactly how these heads are, if they have hydro lifter they could very well have air in them, or just from dry starting the motor.
I drove my one car for 3 days with a similar tap, and finally went away.
Just a thought.
Oil has all drained to the bottom of the motor. I dont know exactly how these heads are, if they have hydro lifter they could very well have air in them, or just from dry starting the motor.
I drove my one car for 3 days with a similar tap, and finally went away.
Just a thought.
#24
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Kind of a thought. But I've had cars that sit for awhile and when you go to start them up they will tap.
Oil has all drained to the bottom of the motor. I dont know exactly how these heads are, if they have hydro lifter they could very well have air in them, or just from dry starting the motor.
I drove my one car for 3 days with a similar tap, and finally went away.
Just a thought.
Oil has all drained to the bottom of the motor. I dont know exactly how these heads are, if they have hydro lifter they could very well have air in them, or just from dry starting the motor.
I drove my one car for 3 days with a similar tap, and finally went away.
Just a thought.
#25
I'm not aware of a check valve built into the oil pumping system for Toyota motors; however, there is a check valve built into the oil filter for all vehicle oil filters. This valve is to prevent the engine from starting 'dry.'
Has the OP allowed the engine to run to rebuild oil pressure? Would take 10-15 seconds to re-establish normal oil pressure. I would suspect a failed check valve in the oil filter as the cause of this issue......it's not commonplace for this to happen, but it does happen.
This is one reason I stick with high quality oil filters with a track record for high performance and longevity.
I hope the problem is resolved at minimal cost to the OP.......OP: please update us!
Regards,
Randy G.
Has the OP allowed the engine to run to rebuild oil pressure? Would take 10-15 seconds to re-establish normal oil pressure. I would suspect a failed check valve in the oil filter as the cause of this issue......it's not commonplace for this to happen, but it does happen.
This is one reason I stick with high quality oil filters with a track record for high performance and longevity.
I hope the problem is resolved at minimal cost to the OP.......OP: please update us!
Regards,
Randy G.
#26
Rookie
Thread Starter
I'm not aware of a check valve built into the oil pumping system for Toyota motors; however, there is a check valve built into the oil filter for all vehicle oil filters. This valve is to prevent the engine from starting 'dry.'
Has the OP allowed the engine to run to rebuild oil pressure? Would take 10-15 seconds to re-establish normal oil pressure. I would suspect a failed check valve in the oil filter as the cause of this issue......it's not commonplace for this to happen, but it does happen.
This is one reason I stick with high quality oil filters with a track record for high performance and longevity.
I hope the problem is resolved at minimal cost to the OP.......OP: please update us!
Regards,
Randy G.
Has the OP allowed the engine to run to rebuild oil pressure? Would take 10-15 seconds to re-establish normal oil pressure. I would suspect a failed check valve in the oil filter as the cause of this issue......it's not commonplace for this to happen, but it does happen.
This is one reason I stick with high quality oil filters with a track record for high performance and longevity.
I hope the problem is resolved at minimal cost to the OP.......OP: please update us!
Regards,
Randy G.
The noise went away after driving it down the road and hasn't came back. The mechanic said it happens on these engines? The longest it has sat for since this is 3 days, the noise has not returned! Changing the oil and filter today
#27
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This makes no sence. Is this a Lexus mechanic?
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