Hi Guys,
I just bought a 98 Camry I4 with 139K. Other than problems I know how to fix, there are two that I will need help from experts here in this group.
- Radiator hose (upper, engine return to radiator). I noticed that after the engine runs for a while or after a trip, the hose inflated and pressurized. I can touch it and feel the pressure. When it colds down overnight, the same hose snap inward. There is no coolant leakage or overflow I can tell. Car runs good. I did notice noise of coolant flowing into the heater-core with air in it while I drive.
I thought the air in the coolant system will eventually get release into the coolant reservoir but I notice no change in the coolant level in the reservoir.
I think this symptom suggest a plug in the system and most likely the thermostat. Am I right or far off?
- Check Engine light on the panel: The owner told me the check engine never comes up, not even when you first insert the key and turn to run position. He said (after a long story of repairs) he always returned to the same garage for emission sticker because other garage will fail his car because the check engine light is off. He suspected that the garage could not fix whatever cause the check engine light and decided to "disable" the light completely. I do have an Autel Code Reader and I can check if a MIL happens.
My question is how someone can disable the check engine light and how to restore it.
Many thanks !
Jonathan Yip Cambridge, MA