2003 GS300 Sport Design over heating !!
03-02-14, 07:07 PM
#2
We need a little more information. It could be the thermostat or the water pump or a hose or the heater core. When was the last time these were replaced? When you put the water in it could you see it churning in the radiator? Notice any leaks on or near the radiator or the hoses? Any leaks (puddles) where you park? Do you smell coolant in the car? Leaking coolant from the passenger side may be a heater core issue.
03-02-14, 07:20 PM
#3
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We need a little more information. It could be the thermostat or the water pump or a hose or the heater core. When was the last time these were replaced? When you put the water in it could you see it churning in the radiator? Notice any leaks on or near the radiator or the hoses? Any leaks (puddles) where you park? Do you smell coolant in the car? Leaking coolant from the passenger side may be a heater core issue.
the coolant was gone dont know where it went, if its the thermostat then the coolant should still be in the system. right?
also i filled it to the top with water with the car not on and no bubbling, the over flow tank was also empty. so filled it with water as well.
the orange coolant is on the passenger side on the plastic but doesnt look like its coming from any where close from the heater core, it looks more towards the front.
but when driving on highway it got hot and then cool and then hot, while it was on heat all of a sudden the heat just dropped to cool if felt like it made a noise of basically getting weak and then went hot again..
03-02-14, 08:09 PM
#4
Didn't say how many miles were on it. It was due a major service that included the water pump, thermostat, timing belt, etc., at 90k miles. The lower radiator hose is on the passenger side of the front of the engine. As are the thermostat housing, and the water bypass pipe and a part of the water pump that you can see; all of which may leak, especially if the engine overheats.
Heat is a real enemy of the 2jz engine. You really want to find out what the problem is before you cause some really serious damage. If you are not a member of Lexus USA, I would join them. You can do it on line. More importantly, you can see all the Lexus provided service that has been done on the vehicle. That will give you some history. You may be able to get some useful information from CarFax.
In the interim, crank the car. Turn your heater on high. Fill the radiator (through the radiator, not the overflow bottle) with distilled water. Let it run for several minutes. If (when) the thermostat opens up, you should see the water/coolant "churning" or flowing in the radiator. If the water level drops fill it to full. If after 10 or 15 minutes you do not see the water churn, it may be the thermostat or the WP. Be on the lookout for other leaks from other places near the front left of the engine just above the alternator.
Assuming that nothing has been done, I would suggest that you have the timing belt, seals, etc, replaced. If it's your WP that's bad, then you will need to go through all that stuff to get to it anyway.
Heat is a real enemy of the 2jz engine. You really want to find out what the problem is before you cause some really serious damage. If you are not a member of Lexus USA, I would join them. You can do it on line. More importantly, you can see all the Lexus provided service that has been done on the vehicle. That will give you some history. You may be able to get some useful information from CarFax.
In the interim, crank the car. Turn your heater on high. Fill the radiator (through the radiator, not the overflow bottle) with distilled water. Let it run for several minutes. If (when) the thermostat opens up, you should see the water/coolant "churning" or flowing in the radiator. If the water level drops fill it to full. If after 10 or 15 minutes you do not see the water churn, it may be the thermostat or the WP. Be on the lookout for other leaks from other places near the front left of the engine just above the alternator.
Assuming that nothing has been done, I would suggest that you have the timing belt, seals, etc, replaced. If it's your WP that's bad, then you will need to go through all that stuff to get to it anyway.
03-06-14, 07:23 PM
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Didn't say how many miles were on it. It was due a major service that included the water pump, thermostat, timing belt, etc., at 90k miles. The lower radiator hose is on the passenger side of the front of the engine. As are the thermostat housing, and the water bypass pipe and a part of the water pump that you can see; all of which may leak, especially if the engine overheats.
Heat is a real enemy of the 2jz engine. You really want to find out what the problem is before you cause some really serious damage. If you are not a member of Lexus USA, I would join them. You can do it on line. More importantly, you can see all the Lexus provided service that has been done on the vehicle. That will give you some history. You may be able to get some useful information from CarFax.
In the interim, crank the car. Turn your heater on high. Fill the radiator (through the radiator, not the overflow bottle) with distilled water. Let it run for several minutes. If (when) the thermostat opens up, you should see the water/coolant "churning" or flowing in the radiator. If the water level drops fill it to full. If after 10 or 15 minutes you do not see the water churn, it may be the thermostat or the WP. Be on the lookout for other leaks from other places near the front left of the engine just above the alternator.
Assuming that nothing has been done, I would suggest that you have the timing belt, seals, etc, replaced. If it's your WP that's bad, then you will need to go through all that stuff to get to it anyway.
Heat is a real enemy of the 2jz engine. You really want to find out what the problem is before you cause some really serious damage. If you are not a member of Lexus USA, I would join them. You can do it on line. More importantly, you can see all the Lexus provided service that has been done on the vehicle. That will give you some history. You may be able to get some useful information from CarFax.
In the interim, crank the car. Turn your heater on high. Fill the radiator (through the radiator, not the overflow bottle) with distilled water. Let it run for several minutes. If (when) the thermostat opens up, you should see the water/coolant "churning" or flowing in the radiator. If the water level drops fill it to full. If after 10 or 15 minutes you do not see the water churn, it may be the thermostat or the WP. Be on the lookout for other leaks from other places near the front left of the engine just above the alternator.
Assuming that nothing has been done, I would suggest that you have the timing belt, seals, etc, replaced. If it's your WP that's bad, then you will need to go through all that stuff to get to it anyway.
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