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Overheating can't find issue HELP!!

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3.3K views 53 replies 18 participants last post by  Elle_Rav4  
#1 ·
I have a 2001 Toyota Camry LE 2.2. my radiator originally cracked on the top plastic bar and it got replaced with a whole new radiator. After that it's still overheated and so I replaced the thermostat. I don't know if the thermostat needed to be lined up a certain way or not it didn't have any markings so I figured I would just line the thermostat up with the screws that hold it in. So I did that new radiator, new thermostat, put antifreeze in and all the works. Well it still is overheating and what it's doing is that it's not blowing hot air and it's not releasing the coolant. If I say it's not really seen the coolant because I would squeeze the hose to see if anything has been released and no it should be hot to the touch if it is once it is warmed up. I thought it was a bad thermostat so I replaced the thermostat with another one. Same problem exist. Is there something I'm missing, or other things I need to replace or check that is causing this overheating issue.The overflow coolant container starts to boil after it runs and gets the temperature gauge inside the car where it is supposed to be in the middle. So everything is replaced as far as I know and it is still overheating and I cannot figure it out, please..... suggestions would be greatly appreciated because I need to get this car moving again immediately. Thank you for your comments, your time, and most importantly your expertise!
 
#2 ·
1. Coolant system pressure test. Verify system integrity / that it can hold pressure @ 15psi.

2. Radiator cap - replace w/ a OEM cap - as a maintenance item.

3. Thermostat - replace w/ Dealer OEM, or AISIN thermostat that has a jiggle valve installed. Orient the jiggle valve up when installing, so air purges thru the valve.

Use the [ Search Community ] -> Advanced search / this forum for "thermostat" for lots o' threads with helpful info.

Use the following thread, "Engine Cooling System" section for more helpful info,


--

^^ This is what I would do / where I'd start, if here.
 
#12 ·
That jiggle valve is not on the thermostat that I bought. It's an off-brand obviously then Toyota, are you knowledgeable about which brands carry those along with Toyota? And is that a extremely important thing that I need to get or can it go without? I actually did notice it not having it on the new one, but every thermostat that I've replaced prior I've never seen a jiggle valve on them. And I don't mean this car I mean other cars. Are you saying it's a necessity for this particular car and will cause these issues of overheating?Thank you for your input too I appreciate all your guys's help. Really does mean a lot.
 
#11 ·
So is that a quick look and gasket replace? Because if I'm correct the answer on the very top and easy to get to? Am I correct on that? I just read a little on it because you said that in that could be the issue? It also sounds like an easy fix and inexpensive fix too? Correct? I appreciate your input more than you know.
 
#8 · (Edited)
A leading cause of overheating after maintenance like this is air in the system, due to either an incorrect thermostat; improper thermostat orientation (see comments above on the jiggle valve); or incorrect air bleeding procedures. The most effective procedure for bleeding air uses a "no spill coolant filling funnel" sold by Autozone, Harbor Freight, eBay and the like:
Image

I am going to try a do-it-yourself version some time, as described at
https://forums.nasioc.com/forums/showthread.php?t=2897137. Photo:

Image


See also:
 
#42 ·
Hey there buddy I am so grateful for your information I'm back trying to get this done. I had a little stint of being sick right after I text all of you and was going to do that test on that one day, and then it's been minus -2° to -20° so that also has hindered me from doing these tests that I was reading about. Today I went and got me a new battery because the battery was dying and I needed a fresh start from the battery end. I had left us where I had put the thermostat in with the jiggy valve don't really know which way it's supposed to be situated but I tried to situated with the screws, and I actually lifted the front end up so it was above the engine to try to get air to escape I squeezed the hose that leads to the thermostat multiple multiple times for a while letting air bubbles come out of the radiator radiator cap with it being off, and a bunch of that came up. So this is where I am now I went and got the battery and I started it up just now I was supposed to check to see if there was anything coming out of the tailpipe and what it was if so. What I found was that is just water. There is no oil and no radiator antifreeze, and the way I decided there was no antifreeze it's because of the color was white like water and I also even though I know it's not good for you I tasted it to see if it was sweet. All I got was a water taste. I can't remember that's a good thing or bad thing I'm going to go back and check on these comments and see. So I turned the car on and it started up ran and it did pretty much the same thing it did not open the thermostat at all didn't open because I kept feeling the hose and I didn't feel no warmth or no flow, and it was bubbling again in my overflow container. I know they said that was probably because of a gasket Bean bad but the test I did with the tailpipe I guess decides that. So anyways it ran and the air still was blowing cold out of my vents and like I said the overflow container boiled again. At this point I'm thinking it might be the sensors I don't know which ones so I need help with that, and with any other ideas that you might have or anything else I should do that you recommend. I'm at desperate at this point being the only transportation I have it's really starting to affect my income and life. Any comments and tips would be very greatly appreciated. I'm going to copy and paste this on other replies to thank you for your time buddy sorry I took so long I hope this is enough info if you have any questions please ask I'm here all night reading. I've got to figure this out now that I feel better and the temperature is only at 2°, LOL better than negative I guess
 
#10 ·
Prolly just got some air left in the system... Just throw the coolant funnel mentioned above on to help you purge the air... it'll also help if yo lift the nose of the car so the radiator is the highest point. These cars are quite easy to purge.



The boiling you mention is rather concerning but could also be air that's trapped being purged... but I would try to ensure the system is free of air first. you can try squeezing he upper radiator hose after a few minutes wih the car running / the cap back on.. if its rock solid you could have exhaust gasses building pressure in the syste...


How long did you run it in the overheated condition?
 
#40 ·
Hey there buddy I am so grateful for your information I'm back trying to get this done. I had a little stint of being sick right after I text all of you and was going to do that test on that one day, and then it's been minus -2° to -20° so that also has hindered me from doing these tests that I was reading about. Today I went and got me a new battery because the battery was dying and I needed a fresh start from the battery end. I had left us where I had put the thermostat in with the jiggy valve don't really know which way it's supposed to be situated but I tried to situated with the screws, and I actually lifted the front end up so it was above the engine to try to get air to escape I squeezed the hose that leads to the thermostat multiple multiple times for a while letting air bubbles come out of the radiator radiator cap with it being off, and a bunch of that came up. So this is where I am now I went and got the battery and I started it up just now I was supposed to check to see if there was anything coming out of the tailpipe and what it was if so. What I found was that is just water. There is no oil and no radiator antifreeze, and the way I decided there was no antifreeze it's because of the color was white like water and I also even though I know it's not good for you I tasted it to see if it was sweet. All I got was a water taste. I can't remember that's a good thing or bad thing I'm going to go back and check on these comments and see. So I turned the car on and it started up ran and it did pretty much the same thing it did not open the thermostat at all didn't open because I kept feeling the hose and I didn't feel no warmth or no flow, and it was bubbling again in my overflow container. I know they said that was probably because of a gasket Bean bad but the test I did with the tailpipe I guess decides that. So anyways it ran and the air still was blowing cold out of my vents and like I said the overflow container boiled again. At this point I'm thinking it might be the sensors I don't know which ones so I need help with that, and with any other ideas that you might have or anything else I should do that you recommend. I'm at desperate at this point being the only transportation I have it's really starting to affect my income and life. Any comments and tips would be very greatly appreciated. I'm going to copy and paste this on other replies to thank you for your time buddy sorry I took so long I hope this is enough info if you have any questions please ask I'm here all night reading. I've got to figure this out now that I feel better and the temperature is only at 2°, LOL better than negative I guess
 
#18 ·
100% air in the system still. If you have jack, jack up the front of the car and let it run for a while with the radiator cap off. This puts the radiator higher than the engine making it easier for the air to bleed out. I've seen this happen on many of these 2.2 cars.
 
#51 ·
Do you know the exact names for the sensors. I know the one for the radiator I just don't know the name, correct name, for the other one. I'm getting ready to look everything up but just thought in case you got it written before I found it that would be awesome. I'm heading to the auto store today to buy sensors which I believe probably the last step before the gasket issue. Thank you for your info and help. It is much appreciated thank you
 
#20 · (Edited)
By now you might be a bit confused so I'll reiterate some of the very good points made by other people on this thread. Several people have already pointed out the overheating might be from a leaking head gasket and of course they are right. Fingers crossed I truly hope you do not have this! But don't forget, just because fixing this is a P.I.T.A. in general, it does NOT necessarily mean a car-killing problem nor even a very expensive one either. BUT if the head gasket really is the problem, you need to know that first before you do anything more. Because, if you have a leaky head gasket, it makes everything else you do chasing the problem completely moot.

Until you get a coolant gas checker or other tool to make a solid diagnosis, it's easy enough to do some cursory checks... Stick finger in your tail-pipe...what comes out? Dusty dark grey or maybe even black, A-OK! Or does your finger come back wet with water, maybe even greenish or reddish wet with coolant?
Remove the spark plugs and examine the tips. Post pictures if you're not sure what you are looking at. Are one or more plugs wet? If they are, is it oil, or coolant, or maybe even both?

Coolant on the plugs and at the tail-pipe is exactly where it shouldn't be, of course - but even if it's head gasket time it is not the end of the world, this engine was known for head gasket problems anyway. And it doesn't necessarily mean it took the engine with it once it started to leak. Valve jobs used to be a fairly common procedure up until the 1990's, before the metallurgy of engines was as good as it is now. So, depending on your DIY skills, it might cost you far less than you think it will to fix.
 
#43 ·
Hey there buddy I am so grateful for your information I'm back trying to get this done. I had a little stint of being sick right after I text all of you and was going to do that test on that one day, and then it's been minus -2° to -20° so that also has hindered me from doing these tests that I was reading about. Today I went and got me a new battery because the battery was dying and I needed a fresh start from the battery end. I had left us where I had put the thermostat in with the jiggy valve don't really know which way it's supposed to be situated but I tried to situated with the screws, and I actually lifted the front end up so it was above the engine to try to get air to escape I squeezed the hose that leads to the thermostat multiple multiple times for a while letting air bubbles come out of the radiator radiator cap with it being off, and a bunch of that came up. So this is where I am now I went and got the battery and I started it up just now I was supposed to check to see if there was anything coming out of the tailpipe and what it was if so. What I found was that is just water. There is no oil and no radiator antifreeze, and the way I decided there was no antifreeze it's because of the color was white like water and I also even though I know it's not good for you I tasted it to see if it was sweet. All I got was a water taste. I can't remember that's a good thing or bad thing I'm going to go back and check on these comments and see. So I turned the car on and it started up ran and it did pretty much the same thing it did not open the thermostat at all didn't open because I kept feeling the hose and I didn't feel no warmth or no flow, and it was bubbling again in my overflow container. I know they said that was probably because of a gasket Bean bad but the test I did with the tailpipe I guess decides that. So anyways it ran and the air still was blowing cold out of my vents and like I said the overflow container boiled again. At this point I'm thinking it might be the sensors I don't know which ones so I need help with that, and with any other ideas that you might have or anything else I should do that you recommend. I'm at desperate at this point being the only transportation I have it's really starting to affect my income and life. Any comments and tips would be very greatly appreciated. I'm going to copy and paste this on other replies to thank you for your time buddy sorry I took so long I hope this is enough info if you have any questions please ask I'm here all night reading. I've got to figure this out now that I feel better and the temperature is only at 2°, LOL better than negative I guess
 
#21 ·
Okay, soon as the weather lets up a bit I'm gonna get back at it. Day or two. 21 inches of snow in Ohio over the last week. I went and got the right thermostat with the jiggy valve on it and put that in and still have issues. So I will do the spark plugs when the weather lets up and the tailpipe thing as well. I don't know if this matters, but the engine runs fine when I do start it though, it doesn't have any change in way it runs. So I don't know if that would tell you anything about the head gasket being the problem. I hope it would so you can inform me and be good news.
So I will get back to you and I will take pictures too when I do it. that way I can post them. I appreciate your info I really do. Certainly stinks being stuck without a car, but worse things could happen. Thanks again and I'll get back to you soon.
Scotty
 
#22 ·
One more thing. My father said something about taking the thermostat and being able to drive it that way. No heat obviously, but is that a possibility?? Is that also another way to lmk that it might be the gasket issue???
But am I able to drive it with no heat obviously like I said, if I were to take out the thermostat. In case I were to have an emergency or something?? Would it be able to drive if I took it out? Thank you again I appreciate your time
 
#24 ·
Don't run it without a T stat fix the issue.

"Is that also another way to lmk that it might be the gasket issue??? "

As mentioned, early on in the post a Block tester on loan from a big box store you will need to buy the test fluid or just buy a complete kit for like +/-$30. You can also use a leak down tester (need a compressor) and also a coolant pressure tester.
 
#25 ·
Well everybody thank you for all your help. I'm just catching up on reading all of them. The advice is amazing and I am going to give everything a shot tomorrow morning, unless I get home early enough today to give it a shot and that will be around 3: 00pm if I get home at a good time. it will be above 20 degrees then and I'm going to give it a shot. I wouldn't want you all waiting around for the suspenseful results of the answers to all my testing attempts, LOL. But, if I can't get there today to do it in that time it will be tomorrow morning probably around 11:00-12:00 noon. I'm going to do everything that is suggested here starting with the air purging. And go from there and I will update you as I do each one. Again I thank every one of you for all your help and it does mean a lot. I'm somebody that loves to learn and absorb knowledge. I take pride, and I take it real serious when i am givien that opportunity. I agree when they say knowledge is power, and if I'm giving the opportunity of gaining any of it, that's always a plus in my book. So I thank you for sharing yours with me. So either today(@4:30pm)or tomorrow(@11:00am est.). Until then, same Bat time...... same Bat channel....... And hopefully Batman will show up and help me out!
-Just me Scotty
 
#27 ·
its very easy to check if your thermostat is working ,bring some water to a rapid boil in a pyrex measuring cup in your microwave so you can see then drop your thermostat in it and if after a couple of minutes it opens up then its working. check to see if the coolant in your radiator is moving or circulating if not then you might have bad water pump, finely check to see if any coolant or water is coming out of your tailpipe,also check your oil and see if there is water mixed in your engine oil and what color it is,and last if you overheated the engine you might have blown a head gasket, they sell a test kit on amazon to check for gases in your coolant, hope this help
 
#52 ·
Getting ready to go out and make sure the thermostat is set correctly. I finally saw a diagram of where it is supposed to be set. Someone on here found it and posted it for me so that was awesome. And water pump? If it was the water pump wouldn't I know by a huge pile of water underneath the car. I've had water pumps go out before and they were usually a mess and that's how usually can tell if the dead giveaway. Don't know if that's an always event for a water pump but just one, let me know.
 
#29 ·
I chased a similar situation years ago with my 87 Toyota.... should have pulled the head from day one....
The bubbles in the tank and other things you mentioned makes me think it's a head gasket. Resurface head and check or lap valves at that time for many years of more service.
I doubt if burping the system well help since the air is getting in internally.
Vicdat
 

Attachments

#30 ·
2006 Camry, last summer I drained the coolant from the radiator and then refilled it, letting it run with the cap off. Took close to 25-30 minutes before it would stop bubbling. I turned on the A/C after trying the heater. I did have to keep adding coolant. Whereafter I drove it to Palm Springs in the summer without issue. Can’t rush getting out the air.
 
#34 · (Edited by Moderator)
Hi Frind,
Are a mechanic, as you say you determine by touching the hose pipe it hot it's wrong. can please check your temperature gauge? and as you see your radiator cap is psi is ok as the car is supposed to run hot than the Wright temprecher. my suggestion is to check the water curcaler maybe your water pump or fan belt is loose.
check this first.
Thanks.
Uattam.
 
#37 · (Edited)
charliehassett3,

Since the overheating problems began, how high did the temperature gauge needle get? More than 3/4s of the way to the top?

If the temperature gauge never went past 3/4s or so, then I tend to think the problem is an incorrect air purge. As others indicated, this is extremely common with these Camrys.

Once you installed the thermostat with the jiggle valve (correctly oriented, with the jiggle valve roughly at the 12 o'clock position), what exactly did you do to purge air from the Camry?
 
#53 ·
Unfortunately the temperature did get high in the red but not long. I shut it off as soon as I saw it pretty much. And I'm getting ready to go properly position the thermostat with the jiggy valve make sure that is incorrectly. And the other night I actually opened the thermostat Jack the front up started the car and continuously squeeze the hose coming from the radiator to the thermostat to purge air out of it. It literally bubbled for 10 minutes, by then I was an ice cube because it was -5 out so I had to stop. But is that normal to have it coming out for that long? If so I'm going to do it again here in a moment when I go fix the thermostat and position it right. Thank you for your replies I appreciate it keep any suggestions coming it's like we're having a baby and I'm almost there, LOL 🤣😂
 
#44 ·
I'm reposting this to everyone just in case cuz I would love everyone's opinion sorry if it's the wrong thing to do I just knew to this forum and you guys have been awesome so I want to make sure everybody's advice comes in. So pardon me for all the repost of my comment today. Just really need to get this going. From being sick to this weather it's been a living hell, be my "F"Angels angels.
Hey there buddy I am so grateful for your information I'm back trying to get this done. I had a little stint of being sick right after I text all of you and was going to do that test on that one day, and then it's been minus -2° to -20° so that also has hindered me from doing these tests that I was reading about. Today I went and got me a new battery because the battery was dying and I needed a fresh start from the battery end. I had left us where I had put the thermostat in with the jiggy valve don't really know which way it's supposed to be situated but I tried to situated with the screws, and I actually lifted the front end up so it was above the engine to try to get air to escape I squeezed the hose that leads to the thermostat multiple multiple times for a while letting air bubbles come out of the radiator radiator cap with it being off, and a bunch of that came up. So this is where I am now I went and got the battery and I started it up just now I was supposed to check to see if there was anything coming out of the tailpipe and what it was if so. What I found was that is just water. There is no oil and no radiator antifreeze, and the way I decided there was no antifreeze it's because of the color was white like water and I also even though I know it's not good for you I tasted it to see if it was sweet. All I got was a water taste. I can't remember that's a good thing or bad thing I'm going to go back and check on these comments and see. So I turned the car on and it started up ran and it did pretty much the same thing it did not open the thermostat at all didn't open because I kept feeling the hose and I didn't feel no warmth or no flow, and it was bubbling again in my overflow container. I know they said that was probably because of a gasket Bean bad but the test I did with the tailpipe I guess decides that. So anyways it ran and the air still was blowing cold out of my vents and like I said the overflow container boiled again. At this point I'm thinking it might be the sensors I don't know which ones so I need help with that, and with any other ideas that you might have or anything else I should do that you recommend. I'm at desperate at this point being the only transportation I have it's really starting to affect my income and life. Any comments and tips would be very greatly appreciated. I'm going to copy and paste this on other replies to thank you for your time buddy sorry I took so long I hope this is enough info if you have any questions please ask I'm here all night reading. I've got to figure this out now that I feel better and the temperature is only at 2°, LOL better than negative I guess