Akes a rattling noise right after ignition that lasts 2-5 seconds. It doesn't make this noise any other time. It is worse on warmer days and better on days -10 or colder. Sounds like the timing chain tensioner. How does the motor come out? Through the top or out the bottom?
If this is a 4cyl., check the drive belt tensioner first, there is a TSB for a tensioner rattle that is a common failure . To test , remove the drive belt and start the engine and see if the noise is gone,
SOURCE: timing belt or timing chain?
You 98 Corolla has a timing chain that it internal and need no normal maintenance. It uses a hydraulic/spring tensioner to keep things tight and as long as its quiet, everything is fine.
Your drive belt (not to be confused with a t. belt) is the external belt you see on the passenger side of the engine. It drives you alt, water pump, A/C and power steering. It uses a spring loaded tensioner to keep the belt tight. These can weaken over time and cause a rattle noise and belt slippage.
SOURCE: Loud tick & knocking for a 1zzfe engine from 2001 toyota corolla
from what you are describing it sounds like a lifter/valve issue, i am a ford man i don't know if toyota do the same thing, but if they use inserts for the valve seats it is possible a valve seat has been dropping just has not dropped fully out to cause engine damage. buying a new engine will actually cost you less than an overhaul/rebuild anymore. the parts will cost you almost as much as a new motor will with all the machining that maybe needed.
426 views
Usually answered in minutes!
×