Quote:
Originally posted by Domslowlude
Heres the deal, My check engine light came on sometime ago,
I Ignored it for some time. After a while I noticed the lack of HP
So I did a complete tune-up on it and nothing. About 2 days later
The #1 plug was bieng smashed by the piston so I changed it out and it did the same thing. I took out all the plugs and cranked it for about 5 minutes( to get out any built up carbon on p-head).
I put in a new plug and it quit smashing it. Now Im back to the original problem of no HP Plus an additional slight knocking from that side of the block. I took it by Autozone to have the code read and they said it was 02 or egr valve, would this cause the problems that I am having?. as In the smashing of the plug.
how about a bent or sticky valve or a stuck Injector?
Any Suggestions Before I have a new motor built ???
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damaged spark plug possibilites:
-wrong spark plug (too deep into cylinder)
-o2 sensor bad while driving a long time on it causes carbon build-up on the piston, valves, and head, ect. The reason this happens cuz your ecu goes into an open fuel map and runs very rich, causing carbon build up. To tell u the truth I have never heard of so much carbon build that it hits the spark plug before the valves. Usually its the valves or the head that get damaged first. But in this case who really knows.
-Also a bad bearing could be causing some slop in the rod causing it to interfere with the plug. Most of the time when this happens it can damge the head or the valves, like I said i havent heard of the spark plug happening first. Thats a new one on me, but like I said who really knows in this case.
final result:
Proper maintenace is very important. even for a little old check light for an o2 sensor. These problems can lead to bigger problems and more money. It sounds like u have been running with your knocking sound for quite some time. So it sounds like u have thrown a rod bearing and continued to drive on it. Bad choice. Your crank most definately needs machining, as well as possible damage to the rod. After driving it for a while like this u have probably beat the machining surface into crap. Your best bet is to get a new engine or a total tear down (full rebuild) and even then I dont know if your crank and rod is still good. The only one that could tell u that would be a machine shop. Using Emery cloth wont do it. It will not fix the crank journal that u have damaged. Dont even try it at this point.
Good luck and remeber maintenance is very important.