This is what is happening, cooling fans will not come on except when the AC is turned on and they will go off when the AC is turned off, otherwise the car acts like it will over heat. The temp gauge inside the dash shows the hand about half way to hot. When this happens the engine runs very rough and sounds badly. When first starting up the motor sounds great and quiet, but in a minute or two the engine starts making a loud clacking sound from the head. The head does not have the hydraulic lifters but the fixed ones.
When I first start it up it runs good, three different times I test drove it about a mile down the road, the engine started running rough as the temperature gauge on the dash was reaching mid-way. I turned the car around and started back home. As I am driving back into the garage, the motor was sounding badly and the gauge was mid way now. After cooling down, I check fluids to make sure the head did not warp. When the motor is running, taking the oil filler cap off, there is a lot of blow-by coming out. I am not sure if this is normal for Camry's.
This is what I have done. Replaced the fans (because the radiator fan was bad, after hooking them up to directly to the battery). I checked all the grounds, including the one under the intake, checked the fuses, checked relays when 12vots to the relay and used a ohm meter to see if it made contact when activated. On the three fan relays. Replaced and tested the new radiator sensor with a pot of water on the cooking stove and temp gauge and ohm meter. Unplug the radiator sensor while the car is running, the fans will come on, but go off as soon as it is plug back in. Replaced the thermostat. Did a block test, was ok. The compression is as follows, the motor would start each time
no1-125
no2-135
no.3-125
no.4-125
what can I do next, before I burn the motor up trying to fix it?
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Monday, January 25th, 2021 AT 12:46 PM
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