Hey, I think i acidentally switched from 5th gear to 2nd gear while goin around 70mph, then all of a sudden i hear a lound *clunk* and the rpm just shot up past the red line. Now whenever it revs up to when vtec kicks in, it doesn't kick it, insted it makes a different louder noise. Is the engine broken and i need a new engine or is it *fixable*?

 

sounds pretty ****ed to me

 

it drives normal on the low rpm's so i think it's just the second cam that is broken. just hope the teeth on the cams are not broken and the hole is so there won't be any little specks of teeth in the engine. Since dohc vtec has 2 cams, the first is ok, just the second is damaged i think.

 

well I know for a fact that when the check engine light is on, and there is something that the computer "sees" as wrong, VTEC is affected.


It would drive normal..and then after 5000rpm, you would hear the other cams take over, but you wouldnt feel any power increase. As soon as the problem is resolved...you power is back....


I would tell the dealer exactly what you may have done, and let them look at the trouble codes...or anything else they might find.

 

What do you mean by second cam? Both of your cams are working all the time. One cam is exhaust and one is intake. It sound like you got lucky when you went from 5th to second. If everything is still fine in low rpm's then your engine seems to not haveany bad damage. But the different sound in vtec rpm's is con fusing. The sound of vtec is the engine being able to breathe more. So is the different sound a louder sound? You could have a valve problem, if this is so dont drive it anymore. You shoud have a mechanic take the top end apart and make sure everything is still ok or it could end up costing you alot later on.

 

Sounds like valve springs and bushings are bent. You may actually be very lucky, because instead of a whole new engine you may only need the head rebuilt. Second gear at 70 mph usually means valve float, piston damage, and if anything, overheating. You may want to have an oil and water pressure check now, too. As well as compression check. At that RPM you never know what seals or rings you may have burned.

 

thanks for the info. i brought my car to a mechanic today and won't know what's wrong with it till tomorrow. hopefully it won't cost alot to fix it.

 

sounds like bent valves. especially the part where you describe VTEC crossover having no power increase, and motor gets louder.

 

i am not tring to rub it in or anything but how did you get second confused with 5th gear??? Second is to the lower left and 5th is to the upper right. Totally opposite of each other???

 

n/m i read it again and it seems like i am the confused one