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How do you know if you bent a valve? #404499 Feb 19, 8:49pm Feb 19, 8:49pm
Joined: Aug 2004
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eclipseturbogsx OP
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2001 Toyota Celica GT
eclipseturbogsx OP
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2001 Toyota Celica GT

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How do you know if you bent a valve?
People have told me that you hear a clicking noise and i started to hear it in my engine, so this is why i asked. Do I go to the mechanic shop and ask them to run a compression test or something? Have anyone done this? How much does it usually cost to see if you do have a bent valve? And how much does it usually cost to replace and fix a bent valve? Thanks guys.

Re: How do you know if you bent a valve? [Re: eclipseturbogsx] #404500 Feb 21, 11:35am Feb 21, 11:35am
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Illusive
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Originally Posted by eclipseturbogsx
People have told me that you hear a clicking noise and i started to hear it in my engine, so this is why i asked. Do I go to the mechanic shop and ask them to run a compression test or something? Have anyone done this? How much does it usually cost to see if you do have a bent valve? And how much does it usually cost to replace and fix a bent valve? Thanks guys.

compression check

you'll also get misfire codes in the cylinder where the bent valve is (cel)

it may not be visible and may only be a pending code, which only toyota diagnostics can register. which means it could be that your getting a minute amount of missfire but your ecu doesn't 100% think its misfire yet, and will pop a pending code, then the next time that same event is triggerd it displayes the cell.


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Re: How do you know if you bent a valve? [Re: Illusive] #404501 Feb 22, 12:37pm Feb 22, 12:37pm
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Canada, Ontario
JoyrideGTS
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JoyrideGTS
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Yeah take it for a compression check, got mine done for 40$, i have a bent valve right now in my celica and diagnosed it at Toyota and they found a misfire, dont really know how much is it to repair it, my car's gonna go in the shop for the repair next month, i'll let you know how it goes,...how did i get a bent valve? i was racing and accidently over rev it and now the engine is messed lol, my engine doesnt really sound normal anymore now but next month it will lol

Re: How do you know if you bent a valve? [Re: JoyrideGTS] #404502 Feb 22, 1:02pm Feb 22, 1:02pm
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Fontana, CA
Lucky_317
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^^ or for $50 you can go pick up a really nice compression tester of your own lol


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Re: How do you know if you bent a valve? [Re: Lucky_317] #404503 Feb 22, 3:36pm Feb 22, 3:36pm
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sickcelica696
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it'll start sounding like someone is dropping marbles or rocks on top of your engine

Re: How do you know if you bent a valve? [Re: sickcelica696] #404504 Feb 22, 3:55pm Feb 22, 3:55pm
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818, CA
Eman
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its 400 bucks to fix our electronic valves, it'll cost you a pretty penny, dont evne worry bout it...my valves are loud as hell lol, i learned my lesson a lil too late.


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Re: How do you know if you bent a valve? [Re: Eman] #404505 Feb 22, 4:08pm Feb 22, 4:08pm
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eclipseturbogsx OP
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is it bad driving around with bad valves? What can happen in the long run?

Re: How do you know if you bent a valve? [Re: eclipseturbogsx] #404506 Feb 22, 4:15pm Feb 22, 4:15pm
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slidr
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Originally Posted by eclipseturbogsx
is it bad driving around with bad valves? What can happen in the long run?
You would know pretty damn soon if something was wrong.


Your engine would go bye-bye.


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Re: How do you know if you bent a valve? [Re: slidr] #404507 Feb 22, 4:23pm Feb 22, 4:23pm
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Eman
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yea, if its just noise, dont worry bout it, excess redlining causes it, specially if you push your car early in the morning on a dry start/cold start...but dont worry if its just ticking.


Ima TuRD fa life
Re: How do you know if you bent a valve? [Re: Eman] #404508 Feb 22, 4:31pm Feb 22, 4:31pm
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North Carolina
eclipseturbogsx OP
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thanks for the good info Eman...i remember buying my car with around 46000 miles and now it has 53000 miles and the engine got way louder. I race occasionally but not beating on my car. I take care of it nice and change oil everying 2500 miles. But i was just worried something could go wrong with it.

Re: How do you know if you bent a valve? [Re: eclipseturbogsx] #404509 Feb 22, 6:16pm Feb 22, 6:16pm
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818, CA
Eman
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Eman
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off topic but the first exhaust i wanted was a hayame, how does it sound?


Ima TuRD fa life
Re: How do you know if you bent a valve? [Re: Eman] #404510 Feb 22, 11:55pm Feb 22, 11:55pm
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california
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If you have a bent valve it will not close, it will get stuck open. If this happens you will lose compression resulting in a missfire. as for the compression check go and buy a compression gauge 20.00 - 200.00 dollars. check the compresion in each cylinder. most compresion gauges have instructions on how to do this. a lot cheaper that going to a mechanic and after you are done you own a compresion gauge to lone to your friends.

Re: How do you know if you bent a valve? [Re: eclipseturbogsx] #449141 Feb 2, 4:04am Feb 2, 4:04am
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I had 2 bent valves when I installed a new timing chain/guides with bad timing. my car died on me haha. Replaced the 2 valves myself.. it was about 23 dollars a valve.

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