shelton williams: Olds cutlass supreme 1996 with 3.1
Mike B: +rich pin hey rich for the bottom bolt, does a socket extension not fit?
Might have to do this on my gf Aztek. Thanks
Great video by the way.
sranjesuper: i'm a mechanic i just did this job 2 days ago on a 3.4 montana, i removed
the throttle body and was able to access both bolts with a small 13 mm
shelton williams: I tried to tackle this on an Oldsmobile last night and the housing would
NOT come off and fit in between the old thermostat and manifold, I had to
leave old one on.. Mine didn't so easily come out, my air cleaner was flat
instead of upright, it's a 96 olds rich, do I have to take off throttle
body? I'm stumped
M & J: the gasket ALWAYS BREAKS!! So everyone make sure you buy a new gasket
before opening your theroaldo body, (Oh however you spell it) your termo!!
is only 5bucks, & intake cleaner!!
jim mcdowell: I had to replace my thermostat today. I followed your advice except I
removed the throttle body and the coolant pipe. The bottom bolt was still
tough. I used a shorty wrench with a screw driver to hold it in place. It
worked. Thanks for the video.
Alberto Barragan: You dont have to take the bottom bolt out. Just get it loose. The
thermostat housing has an oppening for that bottom bolt.
Allen Christo: Ok, here's the final update on my cars problem. It turns out that it's the
intake manifold gaskets that is what needs to be fixed. It's a lot worse
then just the thermostat but, not nearly as bad as the Head gaskets.
Needless to say, not bad enough to get rid of my car. I do love this 95
Buick and she will live on.
Sid DeBord: to bad you didn't mention the sealer/gasket glue. if you don't do this, all
the trouble you go to with that bottom bolt is pointless cause you'll have
to do it all over again. my buddy told me "if you knew about working on
cars, you would've known that", if i knew about working on cars, i wouldn't
be watching this half assed video would i. thanks for wasting my time
Cj Hyde: Cal Van 751 GM Thermostat Wrench - is the specialty wrench needed to
replace your thermostat w/o taking off all the parts (just in case you
didn't see the rest of my last comment...
Michael Faith: Great video! I can't thank you enough! I have an '02 Alero 3.4L so it was
a little different. Not an easy job but MUCH easier after watching you.
The guy at Autozone said the instructions he had in his computer system
said that you need to take the exhaust manifold off. I can see how that
would make it easier but after looking at those bolts, I didn't want to
take the chance of breaking half of them off.
My son is taking his driver's test this Friday and they won't let you take
the test with the "Service Engine Soon" light on. Thanks to your help the
light is off and we're good to go!
Betsy Willey: Your video was very helpful thank you, the only thing I would change is to
mention about he sealer/gasket glue.
Allen Christo: Hey Rich, my Buick Century just started losing coolant all of a sudden. I
was trying to figure out why. I thought changing the thermostat would be
the easiest fix here. Now I am second guessing myself. I don't want to do
this now if it's not the problem. Other then the thermostat I was thinking
maybe the Water Pump. If not that then the worst case the Head Gasket.
What do you think I should do first to figure out my coolant loss? If I
have a bad Thermostat will my check engine light come on?
wederingas: Thanks Rich, my wife just bought an '05 Buick Rendezvous with a 3400 engine
and she does all the work herself, and the thermostat needs changing
Phil Merrow: Thank you for this video. I used it to replace the thermostat on my
daghter's Lumina. It was 100% on. That lower bolt is a pain in the rear
end. Thanks again.
Phish N' Chimps: 2:34... this is why you need an assistant... maybe a small structured
person... would be interesting to see a midget as a mechanic. strong as
heck, doesn't need a high lift.
Terry LaMasters: Thank you for your video. My friend is a mechanic and he told me how to
change the thermostat. After looking in the engine compartment, I realized
that I was intimidated. After watching your video it helped me to
understand I can do it and how easy it was...except for the bottom bolt.
Thanks again for your video since I am a Buick Rendezvous owner.
rustydog0329: If GM can save 15 seconds. and 3 inches of hose when they build a car, they
will do it, even if once you own it, it will take you 6 hours to replace a
part that DOES require periodic replacement
Gene Reeves: Thanks for the very informative video-helped a lot.!!!!!!!!
Alex W: that bottom bolt bested me for 3 hours, even after loosening the exaust
shroud. ended up losing the bolt in the belly of the engine bay. gotta go
to lowes and try again :(
Proper Image Performance: Rich Pin, that was a very informative video, now on to all the non
mechanics with "friends that are mechanics" you do not need any gasket
sealer for this job because that piece of rubber that goes around the
thermostat is recessed in the intake and it protrudes out just enough for
it to seal against the thermostat housing. Tell your half ass mechanic
friend that if he does a couple he would not have your dumb ass believing
what he told you was the truth... thanks again Rich Pin.
Jeffrey Coogan: Thanks so much. I managed to change my thermostat about 8 years ago. Now I
need to do it again and I couldn't remember how I did it the first time!
They really put it in an inaccessible place. Thanks for the refresher!
Eric Brooks: How did you remove the top bolt without removing any of the surrounding
Jon Bell: that bottom bolt is so hard...i do not understand why he doesnt take off
the crossover pipe. if you bump that thermostat and it comes out of place
your screwed...if possiablejust take off the exhaust crossover pipe
aislesoffiles: Is there any other way to get to the bottom bolt? Watched your video, and
got the wrenches you mentioned, but still can't get to the bottom bolt.
t72w3qz: As the thermostat housing is slotted for the bottom bolt could you possibly
pull the bolt most of the way out, leaving it in place with a few threads,
and still remove and replace the housing with enough room for the housing
to clear the thermostat?
Tito Diaz: have a problem with both screws but the bottom one is really hard i have
fat fingers and i cant reach the bottom bolt the black and silver pipes and
the other thing are really in the way any suggestions on a tool to use or
Allen Christo: Yes, she sure will. She's worth it. In the Spring I'll get that one rust
spot. She'll look like new. 8o)
314mrjohnson: hey do you have any videos on changing the O2 sensor and also were there
Gabriel Palma: thank you rich for the info
4Mary6: I also wish to join the chorus of thanks. This video was just the
information I needed. I didn't have the curved wrench that you have. After
looking around the internet I found a specialty wrench on eBay called a Cal
Van 751 GM Thermostat Wrench. It is a U shaped wrench that fits under the
exhaust manifold to get that lower bolt. I had to place a piece of wood on
top of the transmission block to hold this wrench in position. I also had
to use a 8" cheater pipe to get enough leverage to finally get the lower
bolt to loosen up. After that, it was just as you showed. Thanks again!
GUALLACOL: Excellent video, thanks!
Chris Oursler: very helpful thank you
dailydriver: The top bolt is very easy once it is loosened. A quarter inch socket and
extension will get it out. The back bolt was frozen. I used a combo wrench
open end on the bolt and a nylon strap with s hook on the box end. This
gave me enough torque to free it up. Then I had to flip the opened end 12
time for each turn. I shortened the back bolt a eighth inch or so since
it protrudes out the casting any how. Screwed in two turns and was able to
grind off some extra lip of the gooseneck to get it over the thermostat.
Then I was able to tighten the back bolt 3/4ths of the way in with a
ratcheting box wrench and finish off with the end wrench.
kingrider75: I agree with sonal. I couldn't get my big paws anywhere near that bottom
bolt. I don't think I haver worked on an engine that is such a PITA.
trainboy20072009: the information was very helpful, it took me a while to get it together but
in the long run it was well worth it. some people need to understand like a
few in this list that what works for 1 person doesn't always mean its gonna
work the same for them. and speak of wasting time, Sid DeBord comment is a
waste of time, have a little respect for a guy who is trying to help
others. thanks again richpin06a..
Michael Felker: Ok. My fans haven't been kicking on on my 3.1L lumina. I've changed relays
and the thermostat. Do you have any advice on what to try next? I have also
checked all the fuses too. Any help would be massively appreciated
audreonna619: On average how long does it take for a mechanic to replace the thermostat
on a 2002 Buick Rendezvous?
Newcumpas1: Thanks for the help on this project, I found that I just took the air
cleaner tube and the throttle body off and I could get to the bolts. The
top one needs to come out, but the bottom one does not. You can just loosen
the bottom bolt and the housing will slip off of it. Take Care
0nly1champ: how did you remove the duct hose? I remove the 2 wires from the hose and
loosened the clamps but I couldn't remove the plastic piece on nor could I
get the duct loose after loosening the clamps
tanya bolton: Nice video, I like the idea to use a superstat that in future if it fails
it stays open all the time, avoiding overheating. No gasket seal people,
make sure there is a new gasket that comes with the thermostat. Learn from
the best, shop foreman in shop class said to fire your mechanic if he tells
you to use gasket sealer.
csx3309: Hi just wondering if you have to take the bottom bolt completely out seeing
that the thermostat housing is slotted on the bottom bolt ? you would think
with that design you could just loosen it enough to remove the housing?
Selfish bastard: Changed this thermostat along with lower intake manifold gasket, then it
over heated again due to external radiator fluid leak. Now it is running
too cold.. Do I have to do lower intake manifold gasket job again? Or Am I
good just replacing the thermostat again?
ATXs Navbuoy: I normally take my time - the exhaust is in the way but the bolts look
rough and I didn't want to touch them. So I took off the hose off the fuel
rail and removed the sensor above it from the throttle body giving my
enough room to get my wrench in and loosen that infernal second bolt. Great
Vid by the way - thanks for posting!
richpin06a: Are you getting hot air out the vents....if not the place to start is to
check the heater hoses were they go through the firewall.Both should be hot
when the car is up to temperature.
John Doe: Does it matter what position the thermostat sits vertically or horizontally
in the housing? Mine had quit a bit of play when I finally got the housing
removed and I'm not sure how it was originally seat in there or if it
matters. Awesome video by the way. That bottom bolt is a pain.
richpin06a: 7mm on that bolt.
pitchshifter78: Would this be the same for my 95 Cutlass supreme 3.1?
Ernie S: I did everything as you showed, except used a ratcheting wrench on the
bottom bolt. It worked well. The whole job from opening the hood to finish
around 35 minutes.