Saab 9-3 2.0T Thermostat and Temperature Sensor Replacement
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- čas přidán 5. 09. 2024
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Another great DIY video! Thanks for taking one for the team, as it were, with those thermostat bolts!
haha, not fun!
Huge thanks for what you do. I just finished replacing my thermostat and temperature sensor. Yeah, taking the reservoir off makes it a ton easier. Thanks again.
Thank you! I appreciate the comment. I'm glad I was able to help you out
Great video. The rubber gasket is much nicer than having to scrape off paper gasket like the older days.
One tip learned the hard way recently. The o-ring on the plug can get really stuck. When opening the drain on the radiator, you will want to pull out while turning to un-stick it to keep from breaking things. I got lucky and I only broke guides on the drain plug itself, so that it would not lock back into place. New drain plug resolved the issue. Luckily I did not break the radiator plastic tabs inside that hole. This works with all GM's that have that plastic radiator drain.
thanks for the heads up on that! I have drained these a handful of times now so ill be wary
Thank you very much for this video, I replaced mine today for my Saab 9-3 2011 and just to let you know if you remove the coolant reservoir it will clear the space above the thermostat and you will find it very easy to remove all the three screws without any issues and yes replacing this fixed my low temp problem, now I have steady 9 o'clock temp.
Set your heater controls to high
So recirculation after filling will get all or any air out of the system.
As usual great vid... Thx
good tip, thanks!!
Also helps if any bubbles or air blocks are in the heater system
Just bought a 9-3 convertible that cold starts but won’t hot start as the thermostat and temp sensor likely need replacing. Temp gauge just cuts out after driving for 10 minutes and drops to zero. Good to know I can just fix it myself with a few hours and some parts. And so begins my obsessed Saab journey.
good luck :)
Stay safe out there my man ✊🏿
you too steve
Nice. One tip when changing the thermostat, remove the coolant reservoir. It will make a lot more room and make it a lot easier to reach all bolts on the thermostat housing.
I've had problems with the OEM thermostat and I've had two of them now. The coolant temperature rises normally until it gets to around 75C. Then it slowly climbs to 79, leaving the gauge to sit just under the 9 o'clock mark. If I do a fast acceleration it drops back down to 74-75. It's the same on hot summer days, almost like the thermostat opens too early. It's not a problem with the temp sensor either. I've heard other people having the same problem with this OEM thermostat. I've now bought a Gates thermostat and I'll put that in and see if the problem goes away. Have you experienced any problems like this now when you changed yours?
Yeap. Same problem with new OEM one showed in video, it opens at lower temperature. Maybe in desert climate it will reach 9th o' clock position, but not in colder climates. With CALORSTAT by Vernet TH6883.82J all is good :)
I fitted a Gates 82C stat. Superior make, no problems and under bonnet temperature is reduced
I've had trouble with my car's temp for the past year. I've changed two!! I had a similar problem to what you've metioned above. All OEM thermostats were changed to 82C and the 9 o'clock postion is 82C so something's going wrong. Either it's stuck open or you have a problem with the temp sensor. I would certainly stick to saab original parts though. Just my opnion. By the way great job to Jacob! I know what a pain in the neck job this is because I've done it twice. Greatings from Greece!!
@@1CandyBoy Interesting. I wonder why the OEM thermostat opens at a lower temperature than advertised. Manufacturing defect or they put the wrong type in the box maybe... When I've put in my new thermostat I'll boil the OEM one and measure it's exact opening temperature.
@@CycloneCyd Sounds great!
Suggestion. You should move the coolant overflow reservoir towards the passenger side and getting the 3 bolts is a piece of cake.
I’ve never seen anyone do that. There’s no room and I would also need different “custom” hoses if so 😅
@@AutoAutopsy It is precisely what the WIS says to do.
This just happened to my 06 2.0t conv. Just ordered the parts thank you so much ! 🙏
Glad I could help! :)
Needed this video about 2 weeks ago when my thermostat went!
:(
Great video as always! Just changed on my 9-3, that one particular screw on the thermostat housing... I think I need not say more. What did it for me was a flexible extender which I manage to squeeze in between, I don't know if it is the correct english word as I'm not a native speaker but you probably get what I mean.
Thanks! Yeah that one bolt can be a bit tricky
Nice job, thanks! We need to keep our SAABs on the road👍🏼
yes we do!
Dude you ROCK VERY ECELLENT VID BROTHA. GOOD JOB MAN
and thanks a Ton!!
You were a lot of help
thank you!!
I found that removing the ionizer and vacuum pump gave me all the room I needed to access all 3 bolts, and swap out thermostat easily.
Thought this was going to be a potential nightmare - thought sensor would be seized in head 😢or pipe that you moved would snap 😢used 19mm Draper make long socket - fitted like a dream 😊did not have to disturb pipe that is in front . Sensor was horribly black - replacement made significant improvement - warms up far more quickly 👌
awesome! great news
Just put a new radiator in my ng 2006 9-3 aero 2.8t n realized I need to put the cooling fans on the rad b4 installation... now I have to take it back out🙄.
Another good video my guy kee pop up the good work... maybe do a video on the bumper wiring harness & where it leads to.... (sadly I have to repair mine) n can't seem to see where it goes
rip :/ good luck and thank you!
Nice work brother. We gotta keep our Saabs rolling 👍🏻
definitely! thanks!
The og 9-3/ng900 water pumps suck, but I've heard the NG9-3 pumps are worse as well. There's a banjo bolt that requires some serious patience to get back together on the og9-3, I hate that, but what I hate even more is that OEM water pumps only last about 50k miles. I put 25k on my Saab every year for work, so to change it every two years is pretty annoying lol. I've had other makes of cars where the water pumps made it to 200k miles, I don't see any reason why they should only last 50. I've talked to a guy who was a Saab tech, he said he thinks the design of the pump put the bearing too far out of line with the belt and the tension makes them fail there so quickly. For a while I even though it was just junky pumps so I went aftermarket... lol... those only lasted 30k.
This was helpful, informative. I have a 2000 9-3 convertible, 88k miles. The check engine light came on last night. I noticed the temperature gauge did not move after roughly half an hour of driving/30 miles. Does a bad thermostat or sensor trigger the check engine light?
yeah, it's probably one of these too, most likely the thermostat! people recommend you change both tho
I've got an 03 convertible, last year of the og93 and the thing eats a thermostat every couple of years, maybe every 3. It stops getting up to temp like the thermostat is stuck open, the gauge will start to rise but at a point it drops back to cold and after a few times it sets a check engine code.
Ok just FYI bought a Dewalt 19mm deep socket for the sensor and it didn't go over the sensor or deep enough. I used a 21mm and it did the job.
thanks for letting us know!
How do you bleed the cooling system? Does it bleed itself? Do you leave the reservoir open and let it run?
Yep just leave it open and let it run
I had to do the same thing when my thermostat went bad. I made a mistake in over-tightening a bolt on the Thermostat Housing and so i had to rig it so it would seal, careful everyone when you're torquing those bolts, they don't need a lot
rip :(
@@AutoAutopsy Does WIS suggest a torque for those bolts?
Thank you! Having a similar issue with my temp gauge turning off and shutting off the A/C compressor as it sees it as the engine overheating. Going to try this first before anything else.
"Saab, great engines...just upside down and backwards."
Haha
I agree i had a volvo before a saab and to me was like its upside down in a way . my going tru this as i speak the temp gauge takes sometime to get to the 9 oclock nornal position that i looked in the scanner the temp is rising thats just no without an empty radiator with a bit of antifreeze.. So i refill the radiator just to the half way but tomorrow il fill the resevoir .. Dobt know if u ever got it fix
@@mcdonaldg2908 Yep fixed it without a problem, did need to put a bit more coolant back in after a bunch came out with the sensor. I just threw it in the car incase it leveled out low, and it did, so I topped it off and its been perfect since.
Don't know if anyone's already put this. Your coolant level Went up Because you have the cap off and system could not Build-up pressure. In your case in this video.
yes
Hi. Great video. Whats is the torque setting for tightening the 3 bolts?
Really helpful nice job 👍
thank you!
do you need to use ptfe plumbers tape on the thread please
Thanks for the helpful video. Do you need to drain coolant to do just the temperature sensor?
Nope!
Mine is just staying just above low do you think it's stuck open or that it's just not registering properly
The problem I have is the locations are not where you show them I have a a 2003 SABB 9-3 convertible with a direct ignition system. Where are the parts located?
What I notice on my 05 arc cv. Is that coming down from a hill It happened twice once when it was like 40 degrees F at night and the other time happened coming down a hills at 80 degrees F outside temperature my temperature gauge starts falling down once i reach a level surface goes back to normal.. I notice the coolant reservoir was boiling? Like when you put a pot and water on the stove and it's boils..
probably not good; might be a bad thermostat, but if it's boiling coolant it might be overheating.
Does removing header tank make it much easier ???
Yes
My check engine light also showed because of the sensor/thermostat. Do you thing removing the coolant reservoir would've provided more room to access the thermostat?
Yea. It definitely would. I just was lazy lol
Hi temp sensor is it 19mm long socket please ?
Good job. I thought you put a cold air intake on that car.
What? Like they have fitted as standard?
yes! The piping was cracked it threw me the P0101 code so I removed it. still haven't had time to fix it unfortunately
@@AutoAutopsy what material is the cracked pipe? Hold the crack together on on side with tape and then use Q Bond to fill the crack and provide a 'bridge'. Remove the tape and put a 'bridge' on that side
czcams.com/video/McVeYbOK2nI/video.html
It's BSR, so just plastic. I'll check the video out, thanks!
Hi! I have a 2007 Saab 9-3 2.8 turbo sport combi. I bought her 4 months ago. I got home yesterday and about ten minutes later my neighbor came out and said my car was on fire. I went out and it had obviously overheated and sprung a big leak and it was coolant steaming off the engine. I had no warning bells go off while driving, neither in the electronic display nor the temp gauge alerted me to anything. I did notice that the air hasn't wanted to get cool and the fan stayed on after I turned the car off, but I thought I needed an AC service and was told, "it's European, the fan is supposed to be on."
I lifted the hood and the reservoir had split at the seams... I'm assuming that's because my thermostat is non-operable... or at least I hope. I'm hoping you can tell me where to look? because I know it's different and miserably difficult to change for a thermostat, but I can't find it at all. Do I have to take the heat shield off the turbo to see it? Or is it further under the reservoir and I have to remove that to see? There is no room between the engine and hood back there like in this 2.0 vid....
Also, I'm hearing you have to buy the whole housing for the 2.8l, is that true?
I’m not too sure about the 2.8; but you said your expansion tank split? I would start by replacing that. Those are notorious for going bad due to being located right over the exhaust. If you need more help, I’d advise joining some Saab Facebook groups!
Thanks for this ...
I think I need to replace my thermostat for my Saab 9-3 because I’ve had issues with the temperature gauge were it dont even move 😆 lol
I’ve replaced the coolant sensor and still no luck....
But my heating works 😆
I’m kinder confused 😐
But I’ve put the order for a thermostat hopefully that comes by the weekend and with ur step by step
I would replace that next ....
Hopefully it will; good luck :)
Why didn’t you do a video on the 2.8 thermostat,also where can I get a low temp thermostat
Because my thermostat never went bad..
Check esaabparts. I’d just get OEM
I have the 2003 Vector and need to change mine out because it's causing check engine light to go on. That one bolt has me scared. I wonder if they make a deep socket skinny enough to go straight down.
send it!
@@AutoAutopsy Yep it worked. Got an 8 in 1/4 extension from Amazon (PT is the brand and came in a 3 set of different sizes for about $10) and it was skinnier than the deep socket which barely fits through that hole so it all fit down there at an angle. So it will fit and I can loosen, but I will need to use a magnet probably to pull it up after to be safe.
I dot know if you can help, I have a P0116 code, and already change the temperature sensor. I think I need to change the thermostat because I sill have the same code even after replacing the sensor temperature. Thanks
i would to be safe; if you haven't checked forums for that code, i'd advise doing that as well to see what other people have used as the solution
Hello, my question is, can these two cause check engine light? I got similar symptoms lately
Yes, it could cause a CEL
@@AutoAutopsy Thanks for the quick reply, I was doing some research, I'm almost certain it will be the sensor
Hey bro hope you see this message I saw your video and I installed a new coolant sensor in a new thermostat brand new and for some reason my car is still overheating ever since I installed a new water pump as well what could cause my car to overheat I have a saab 2004 93 2.0 the mechanic say it could be the radiator
If that's clogged, it could be!
More than one year ago, I had the same problem that I had to fix but the temperature gauge was reading very low near the cold mark. What does that mean when the temperature gauge is reading cold when driving on the highway for a few miles?
What is the problem that causes the temperature gauge to not reach the normal mark if it constantly reads cold?
probably the thermostat; i would start there
A diagnostic test revealed that my vaporizer sensor reads -40F. The AC coupling is only active for a short time (1-2 seconds) when the engine is started. The diagnosis shows the sensor OEM 93171824 is broken. Can you help me? where the sensor is located?
i would put that part number in google and an esaabparts parts diagram should come up to show you
@@AutoAutopsyThe diagram is incorrect because #31 is not the ACC evaporator sensor location and the wire colors from this are not the same as the replacement part 93171824, Thanks for your effort.
This is what i did today ... My temp gauge goes and stay in the 9 o'clock it doesnt go up or down but in the diagnostic temp is rising but the gauge stays at 9 oclock... I notice that today about the thermostat also how the one i took out before it had holes around it on the inside under the gasket.. Looks like Jello... What about the radiator we dont fill it in?? ...
Me personally everyone has different ways they work i took off the resevoir i was able to do things better this is just me..
I'm not sure what you're really asking. I would post about this on some saab facebook groups.
I had a p0128 code. Coolant temp lower than expected. Is my thermostat constantly open? I takes a long time to warm up, cabin gets heat very quick compared to other cars.
It could be a thermostat, but its hard to say for sure
@@AutoAutopsy I've ordered a thermostat and a temp sensor. They are very cheap.
The gauge on my 07 9-3 2.0t is slow to climb and won’t move at all if the heater is on. Just changed the temp sensor and thermostat was replaced recently (before I bought it, will have to check PO’s receipts for exact date). Should I do the thermostat again? Or is there some sort of other connection, relay, etc that I should check?
i would think the thermostat needs to be done again. maybe it wasn't replaced with OEM
Just ordered one from esaabparts. Thanks!
It was the thermostat. Thanks for the help!
Engine was too hot?? Too cold??
Having owned my 9-3 for about a year now, it seems as though Saab’s were built by someone who only worked on April Fools day. Everything is a major production!
I'd disagree. I find my 2.0T fairly good to work on. If you wanna experience something really hard to work on, get yourself a Range Rover.
@@CycloneCyd Snap!, I almost bought one of those RR!
I too find the 9-3 b207r easy to work on , especially with the WIS; well designed, given how tight engine bays are today. I grew up in the pre-computer/abs/analog era. Today's stuff is all mostly plug and play by comparison.
Cool vid. I’ve recently picked up a 2006 9-3 Arc and going through it, after owning a c900 Aero and now also have a 9000 Aero ...
I’ve notice the 9-3 has oil around the bottom of the plastic thermostat housing, from your experience what would this be coming from?
I’m not sure, sorry. Could be a number of things. Have you checked on any Facebook groups for help?
I have an 05 arc so i know what you mean i have the same exact thing its a leak did u ever fix it
@@mcdonaldg2908 I did and it was coming from the cam cover gasket. It was making a big mess at the back of the block also.
Leaks are also common from the vacuum pump and power steering pump.
Do I have to go through all the BS of messing with the thermostat and draining the coolant in order to change that temperature sensor? Cuz I'm getting a code that's saying the coolant temp sensor is bad.
nope; you might lose a bit of coolant but you can just remove it and top off fluid if necessary
Hi, I have a question. Does the coolant sensor also controls the radiator fan? Thanks for the vid.
good question; i'm not sure, sorry
Yes, as soon as the temp sensor reads 100C from the engine coolant passing through it - fans stage 1 kicks in. More info is available via WIS.
I can see it is a bit oily around thermostat. What is that? I have same oil dripping from somewhere and can not figure it out. Vacuum pump's gasket was change. Any idea?
Yes; i think it's either that or it comes from the PS reservoir. that's something i need to fix soon
My 9-3 drives great but cuts out when I apply brakes.. after 5 minutes it starts again fine… it drives for ages but whenever I apply brakes it dies yet again… any ideas please 🙏
Przepustnica
Hi. I have changed my Thermostat and while doing so the drain plug on radiator broke. I have the part (24411010). How does oneremove the broken plug for replacement?
i've never fully removed it, but I assume you twist it to a certain position and pull it straight out.
A question from another Saab enthusiast: the gauge on my 9-3 (2.0 Aero 2005 petrol) has the tendency not to go down completely after switching the engine off and pulling the key out. It normally stays at 1/4 so the next time I start the car and the engine reaches temperature, the gauge goes to 3/4. When I measure it with the OBD tool, it seems to run at 95-99 degrees Celsius, and never had overheating problems, thankfully! One way of getting the gauge down is by removing fuse 4 and putting it back on but that doesn't resolve the issue in the long term as the gauge still prefers not to go down after a while.
Do you think it could be a sensor problem or a problem with the instrument cluster?
Thank you for the video! Have fun with your Saabs and stay safe:)
I’d venture to guess it’s one of the two. I’d just replace both
I have this exact same problem. Have you found a permanent solution for it yet?
I think the only permanent solution is to replace the instrument cluster or the electric motor behind the gauge if you don't want to replace the whole cluster. I have the motor but I haven't done it yet as it's a bit of a job removing half of the dashboard. For now I just do the Fuse 4 thing and keep an eye on the coolant temp with an OBD 2 device. Hope this helps!
aye man appriciate you helping uss saabs out ^-^
:) no problem!
Is it difficult to remove ? Don’t want to snap it off in the head - will soak in plus gas and prey it doesn’t snap 🫰
2.38 Wasnt your saab downpipe missing a nut?
then engine is running while park for 45 minutes then after that i saw it the water is coming out from the coolant battle...can you help me what is the problem
i wouldn't drive it until it's fixed. you'll end up having more problems if you're driving it hot
can i ask i have a saab 9-3 convertable the problem is he is overheating while parked and not run but the engine is turn it on what the problem of it
i would assume the fans aren't working
Has anyone done this on the 2.8??
My '06 Aero is running at the 3/4 mark & I'm wondering the cause?
The fluid is fresh & at the proper level.
yeah, definitely replace that. i would NOT drive it like that.. check wis for instructions
How do you replace the number buttons? Is it just flick the old ones off and push back the new ones on type of job? Thanks :)
yeah. i used a skinny flathead/pry tool and hooked it back in there and kinda wiggled/pulled it out
@@AutoAutopsy cheers buddy!
I replaced my thermostat and now whenever I drive my car my temp gauge goes over halfway, and my coolant boils out the reservoir. Followed by smoking from under the hood (most likely coolant burning off) and the coolant tank is all empty, but no leak ... any ideas?
i wouldn't drive it....probably a bad thermostat or you replaced it wrong
@@AutoAutopsy yeah I probably did put it in wrong (even though you literally just sit it in there) but I took it back out, readjusted it and also threw in a new temp sensor and boom back to new
I have a 2007 Saab 9-3 and while I was replacing the thermostat on it one of the bolt holes snapped off on the thermostat housing and I was considering getting a metal replacement one for it. Would that be wise or should I just get OEM? And also there seems to be a tricky hose running from it into the engine where the is no room for pliers so do you have any tips for that?
maybe try removing eh expansion tank or something to give you more room; and i'd advise sticking to OEM!
Thanks, will do! I'll just go with OEM just to be sure everything is right with it.
hello, i have a Saab 9-3, 1.8 turbo, runs all well, opens up fun well. i have done trouble shooting on water pump and seems all okay. the car runs great, powerful, no over heating. after driving up a hilly road, the coolant starts coming out of reservoir and gets warning, low coolant. what could be the problem.
Could be a bad coolant cap, might not be holding pressure.
I think you have air in the system
@@mcdonaldg2908 thsnks, but it was a leak in coolant reservour tank
I'm sure you would saved some time and have more room if you just removed the coolant expansion bottle, it would have been much easier!?
by the time I had removed it, I venture to guess no time would have been saved.
My 2008 9.3 is missing the cover for the third brake light ...the plastic one that goes inside ...can you help me find it?
I offered to help you but you never responded 🤷♂️🤷♂️
junkyard, www.esaabparts.com, etc.
I notice on the coolant container its writen kalt, but you spell it kallt (cold) in swedish. GM dont bother to care about these things?!
wow, never noticed lmao
Ha! Good eye!
Did this fix the issue?
Yes.
Does it make sense that remove coolant expansion tank for get more space?
if you want to, yes
@@AutoAutopsy Yes. It makes this a 10 minute job.
Hello, how long time I must wait when air is get out.?? Sorry for my English 😁
Wait until the car reaches operating temperature
@@AutoAutopsy Ok thx 😁
Was that an original 90C stat?
The OEM thermostats were all changed to 82C.
I'm not entirely sure; sorry! :(
For anyone buying a stat for 2.0T, this is a MUST CHECK item. Be sure to put a 82C stat in as the replacement even if you're removing a 90C. Gates do one - easy to find the part number in their catalogue
oh my.i m going to have to do this soon and it doesnt look fun
It’s not too bad :)
I took a flathead screw driver and hammer to tap until it loosened...was much easier....but good job
thanks! might try that out if i ever do this again lol
@@AutoAutopsy if i change one O2 sensor....should i change the other...
Es el mismo motor que el Vectra..??
I’m not sure.
Hello buddy. How many kilometers does the motor have?
about 140k miles
@@AutoAutopsy Thanks!
Yes the water pumps are a nightmare you need special tools I would not even attempt if you value your sanity
probably will just take it somewhere if mine goes lol
@@AutoAutopsy RTJ Autos Stockport U.K. did mine with chains and tensioner at 102 K miles - intend keeping it for years ! so money and time well spent
Where is the location on your Aero xwd?
My turbo x? I believe it’s on the driver side of the motor
@@AutoAutopsy thanks
Replaced my thermostat but engine is still cold 😢
temperature sensor
This damn thing has been a nightmare for me haha.
:(((
my water pump is going out :(
that's not good :/
@@AutoAutopsy hey I'm back. Used this video to replace my thermostat and got it done in 20 mins. Thanks so much man.
what you shouldn't be doing is kneeling on top of your engine compartment........
What you shouldn’t be doing is commenting something useless like this on this video........
How?? I’m on the upper radiator support, which can easily hold my weight.
@@AutoAutopsy HUH? Do you even know where the radiator is? It's in the FRONT of the car. You're not kneeling there. In fact, you're kneeling on top of the battery. No radiator support by the battery, either. Unless, of course, you have a "special" Saab with a radiator on the side.....lol
First
:)
Thanks bought a 2001 Saab!! Lots of electrical problems and definitely needs thermostat !! My mechanic doesn't know a lot about Saab engines, only saving THIS for him what else could cause antifreeze to leak? I am thinking problems with expansion tank and thermostat ? Why else wouldn't my expansion tank open after running vehicle for a while? Right? If you are have any ideas I would appreciate it if you emailed me @ lila777witch@gmail.com! Pre salvation email address!! 🙏🏻🙏🏻🙏🏻s God bless
Így el kell rejteni? Mi van ha be esik egy szerszám? Hülye tervezés!
Wait til you change the water pump it's hell