I have found a lot of people having problems with there 99 corollas having issues with the engine drinking oil at a very rapid pace and no signs of leaks and no smoke. Well my wife bought her 99 corolla with the 1ZZFE engine last July and she thought it was a great deal for 5,000 total. Well 3 weeks after getting it the oil light come on and all the oil was gone!!! Well I told her with out income tax refund I would fix it and I thought it was stem seals and I replaced all of them and the old seals were badly worn and I put on a new timing kit plus water pump, etc and the problem was just as bad. I was stumped and figure it has to be rings. I read online about everyone having issues with these engines and I didnt want to buy a rebuilt block and have the same issue.
Well I called a machine shop here that has been around for ages. As soon as I told him the 99 corolla engine he said "ahhhhhh one of those engines". He said that the problem is that when Toyota built the engines they put smaller pistons in the engine than what should of been in there and just put in oversized rings to compensate. They did this to make the initial startup and break in easier. Well after 30,000 or so miles the rings would wear down and then the oil consumption started and only gets worse. He said my rings were worn and sticking. He said for a temporary fix to reduce the oil consumption I could pull all the plugs out and dump a little transmission fluid into each cylinder and replace the plugs. He said to start the car and it would smoke like hell for a little bit but that transmission fluid would possibly free up the rings and reduce some carbon. But he said that your engine needs to be rebuilt.
I just thought some people may be interested in hearing this since so many people are baffled at this problem.
Well I called a machine shop here that has been around for ages. As soon as I told him the 99 corolla engine he said "ahhhhhh one of those engines". He said that the problem is that when Toyota built the engines they put smaller pistons in the engine than what should of been in there and just put in oversized rings to compensate. They did this to make the initial startup and break in easier. Well after 30,000 or so miles the rings would wear down and then the oil consumption started and only gets worse. He said my rings were worn and sticking. He said for a temporary fix to reduce the oil consumption I could pull all the plugs out and dump a little transmission fluid into each cylinder and replace the plugs. He said to start the car and it would smoke like hell for a little bit but that transmission fluid would possibly free up the rings and reduce some carbon. But he said that your engine needs to be rebuilt.
I just thought some people may be interested in hearing this since so many people are baffled at this problem.