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Old 02-02-2013, 09:58 PM
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LarryMow LarryMow is offline
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Default Thermostat change on a 93-95 3.4 V6

Ok, I finally got off my ass this morning to change my thermostat. I'll post up a description and some pics of how I went about doing it. I'm not sure if this is what the dealer or you would do, but it works for me. If you have another way or an easier way, then please feel free to add the additional info.

Things need:
1 flat tip screwdriver
1 pair pliers
1 pair of needle nose pliers
1 magnetic retrieval tool (just in case)
1 short 7mm socket 1/4" drive
1 short 13mm socket 1/4" drive
1 deep 13mm socket 1/4" drive
1 1/4" drive swivel
1 8" 1/4" drive extension
1 13mm combination box end/open end wrench

Upon opening the hood, find the two 7mm screwing holding on the cover over the throttle cables....then remove them.

Next, roll the throttle back and pull the ends of the cables out of the throttle levers.

Next, there is one 13mm bolt and one 13mm nut holding on the throttle cable bracket, remove those and pull the bracket out of the way towards drivers fender.

After this, you'll need to unscrew the metal band on the intake boot, remove the plastic clamp on same boot, remove the pcv tube and unplug the sensor from the boot....remove boot and lay to the side.

Now, you'll need to remove two 13mm bolts holding the throttle body to the intake. Facing the throttle body, one bolt is about the 1 oclock position and the other is about 8 oclock position...remove the bolts and lay the throttle body down in front of the water pump out of the way.

At this point, the thermostat housing is exposed well enough that you can see it clearly and can get to it for the most part. To remove the passenger side bolt, use the short 13mm socket, the swivel, the extension and the rachet. To remove the driver side bolt, you'll need to use the box end of the 13mm wrench. This will take a few minutes to get out, so be patient.

Once you get the housing out and pulled out of the way, you'll see the thermostat...if you're lucky it'll be turned just enough to where you can use the screwdriver to pry it out.

Be careful not to tear the gasket when removing the thermostat and youll be able to reuse it. The gasket is rubber, has a groove in it and slips around the edge of the new thermostat.

Once you've done this, just reverse the above steps to put everything back opposite of the way it was removed.

The whole process should only take 1-2 hours.

Last edited by LarryMow; 02-02-2013 at 10:47 PM.
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Old 02-03-2013, 12:42 AM
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thake618 thake618 is offline
1995 camaro 3.4

Join Date: Jan 2013
Location: erie county, pennsylvainia
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Posts: 341

good to know I got so pissed trying to do mine I took it somewere the Haynes book is shit when it comes to thermostats. I could hav gotten it off but not sure I could have gotten it back on hahah it was like 10 bucks when I got it inspected
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Old 02-03-2013, 01:31 AM
LarryMow's Avatar
LarryMow LarryMow is offline
Proud owner of an underpowered T/A clone

Join Date: Oct 2012
Location: Hattiesburg, MS
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Posts: 100

I know how you feel man. Honestly, the hardest parts about this whole ordeal was taking out the driver side housing bolt and putting the throttle cables back into their levers. That one bolt sucks because you have to use a wrench to get to it. I tried one of my rachet wrenches, but the head of it was too wide to fit on the bolt and clear the housing. When it comes to the throttle cables, there are actually 3 of those, and its the inner most one that sucks. Reason being is, in order to get the cable back in it position, you have to pull the cable forward WHILE pulling the throttle back to access the hole where the head of the cable goes. The middle cable and outside cable arent that bad, unless youre worn out and pissed off by this point (which I usually am, lol).
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Old 01-18-2014, 02:40 PM
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ProudOfMy304hpV6 ProudOfMy304hpV6 is offline

Join Date: Aug 2013
Location: Bethesda Ohio
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Posts: 265

I just removed the entire throttle body to get to it. It was so much easier because I couldnt find the swivel.
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