Engine Engine help?

Engine help?

I was driving down the road and my engine started to knock. I know its coming from the head, sounds just like knonk but its not. Any thoughts? could it be loose valves? Thanks

check oil, make sure intake is on tight, check air filter... try seafoam..thats all i can think of..

u have a big problem man i think i might be your valves i don't thinks its loose man...WIll open your head and cheak your valves but i think its your valves...

i took it to the dealership today. 3 weeks ago they replaced my timing chain tensioner due to an oil leak. I think it might be chain slap. its coming from the timing chain side. i hope this problem isnt major cause my prototype cams are on order.

toyota wants 3000+ to replace 1 rod and bearing along with the crankshaft. they have talked of an engine replacement. im having it towed to our local tuning shop. toyota is wack

Alright - so how in the hell does a rod, bearing cap and crankshaft go bad?? What happened to cause this? This isn't a typical problem on Toyota engines that are properly maintained. I'd get the parts and do it myself, if I were you.

I mean, the only thing that could really cause this would be oil starvation or detonation or perhaps crazy boost pressure if FI.

Let us know the verdict,
Trav

they fixed an oil leak the other weak. if my engine was leaking oil it was without me knowing it

do the swap yourself, you can do it.

Well - do you think it was leaking oil? That would have to be a pretty big oil leak. Did you get an oil pressure warning light or anything? Or was it just kind of like fine one moment and the next not so fine??

Odd....very odd indeed.

Trav

the only problems i have seen is mis-use by the driver or ill-treatment not getting oil changed and all

my oil light came on the day after it started making noise for one second then clicked back off. i immediatly added oil. it wasnt low and i had changed the oil myself 3 weeks ago so i know it had oil.

Well, low oil pressure can cause big problems with the bearings, obviously. But if something besides oil starvation caused the bearing to crap out, then you'd have low oil pressure as a result - and that would just be a snowball effect. Bad bearing as a result of low pressure and low oil pressure as a result of a bad bearing. One bad bearing causes a system-wide drop in pressure...that's why it's so important that bearing clearances are correct down to the 0.001th of an inch. Just make sure it's fixed right or your engine will self-destruct again. That's why I'd do it myself if I were you.

Late,
Trav