1993 ES300 coolant boils over, gauge reads normal?
04-22-09, 05:41 PM
#1
Driver School Candidate
Thread Starter
Join Date: Apr 2009
Location: Tx
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
1993 ES300 coolant boils over, gauge reads normal?
What causes coolant to boil over, AND the temp gauge to read normal?
I have a 1993 Lexus ES300 that runs and drives great for about 30 minutes. The temperature gauge shows the car warms up like it should, but then coolant starts boiling and steaming from the cap. How should I fix this.
I have a 1993 Lexus ES300 that runs and drives great for about 30 minutes. The temperature gauge shows the car warms up like it should, but then coolant starts boiling and steaming from the cap. How should I fix this.
04-22-09, 06:14 PM
#2
Guest
Posts: n/a
More than likely your thermostat is broken. They are under $100. I replaced mine myself on my 2GS. Not sure where it is on the 2ES.
Are you sure you are putting in the correct coolant mixture in the car? I strongly suggest getting the Toyota red coolant and not using the green Prestone stuff. DO NOT mix red Toyota coolant and green coolant.
Welcome to Clublexus.
Are you sure you are putting in the correct coolant mixture in the car? I strongly suggest getting the Toyota red coolant and not using the green Prestone stuff. DO NOT mix red Toyota coolant and green coolant.
Welcome to Clublexus.
04-22-09, 07:20 PM
#3
Lexus Champion
that's not at all what is most likely broken
it's either: worn out radiator cap(s), head gasket failure, or -- a combination of these or other problems AND a malfunctioning temperature gauge. just pure logic.
I would say keep to one kind of coolant, as well. The ratio of coolant to distilled water should be at most 60:40, but optimum mix varies depending on how cold it is when the car is driven. pure water would not tend to boil just because it's pure water, actually, it would cool the best, thus reducing temperature, but, the cooling system is not designed for pure water, so there could be little glitches in the way it works, so minumum, 30% coolant. I live in NJ. I personally use a 40:60 coolant:water ratio. I have no problems whatsoever in my conditions, everything is A-OK.
welcome aboard, mr COMRAD from texas....
it's either: worn out radiator cap(s), head gasket failure, or -- a combination of these or other problems AND a malfunctioning temperature gauge. just pure logic.
I would say keep to one kind of coolant, as well. The ratio of coolant to distilled water should be at most 60:40, but optimum mix varies depending on how cold it is when the car is driven. pure water would not tend to boil just because it's pure water, actually, it would cool the best, thus reducing temperature, but, the cooling system is not designed for pure water, so there could be little glitches in the way it works, so minumum, 30% coolant. I live in NJ. I personally use a 40:60 coolant:water ratio. I have no problems whatsoever in my conditions, everything is A-OK.
welcome aboard, mr COMRAD from texas....
04-22-09, 09:04 PM
#4
Driver School Candidate
Thread Starter
Join Date: Apr 2009
Location: Tx
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
I'm doing a PPI tomorrow, without going into too much detail I need a car for less than $1000 that can be slept in. I found this car for a $1000 Great body and interior, and the owner told me no water in the oil, or oil in the water. I hope its as simple as a radiator cap, but I find it hard to believe he didn't try to change it. I will take a new one with me as part of the PPI.
04-22-09, 09:30 PM
#5
Lexus Champion
Thread
Thread Starter
Forum
Replies
Last Post
