New Member Area New to Toyota Camry Forums? Stop in tell us about you.

Changing Thermostat on 94 V6 engine help!

  #1  
Old 12-13-2011, 06:58 PM
Junior Member
Thread Starter
Join Date: Dec 2011
Posts: 5
Question Changing Thermostat on 94 V6 engine help!

Hi Everyone, I am a New member. My car need to replace the thermostat, but I want to know threre is certain way to put the thermostat in the housing? Some web site I see they tell put it in the direction 12 o'clock because I see the back of the thermostat housing is 2 wings( sorry I don't know how to describe it?) Second question is I saw the diagram in the Auto zone web site there is a bleeding valve on the top, do I need to release air after changing the thermostat? also so many gaskets, which one do I need to replace, this is the first time I am dealing with V6. Thank you very much for your support in advance.
 
  #2  
Old 12-14-2011, 01:08 PM
Super Moderator
Join Date: Jan 2008
Location: PTW
Posts: 11,738
Default

The AutoZone website may have something in their vehicle repair guide section about changing the T-stat. You will need a password but the site is free and contains a lot of good info.

The T-stat has a gasket around its flange, the pipe going into T-stat housing has an O-ring.

Determine if gasket comes with the T-stat. Often it can be reused but if out in the middle of nowhere best to have all the parts.

If you end up pulling the pipe out of the housing then replace the O-ring. This is a standard metric O-ring, perhaps the auto parts store has it or get one from Toyota.

You want the spring side of the T-stat installed facing the engine. The vent hole on the T-stat flange (or what may look like a loose rivet-jiggle valve) oriented in the up position so that it aligns with the upper stud that helps hold on the housing.

If there is no dedicated vent onto top of the housing or engine area it bolts to then no venting is required.

When draining the coolant if possible make a note as to how much came out.

Add coolant and when almost full squeeze the upper and lower radiator hoses to purge the air out of them. As more air comes out, add more coolant.

Ideally you will end up adding slightly less coolant that was drained out.

With the radiator cap off, start engine and let it heat up. Once the T-stat opens the coolant level may drop, add more coolant. Check for leaks at the housing, pipe, etc.

Fill the overflow reservoir with coolant then with radiator cap on drive the car. Check for leaks.

When engine is cold remove that radiator cap to make sure the coolant is really topped off. Check overflow tank fluid level and if required top off.
 
  #3  
Old 12-14-2011, 03:18 PM
Junior Member
Thread Starter
Join Date: Dec 2011
Posts: 5
Default

Originally Posted by toyomoho View Post
The AutoZone website may have something in their vehicle repair guide section about changing the T-stat. You will need a password but the site is free and contains a lot of good info.

The T-stat has a gasket around its flange, the pipe going into T-stat housing has an O-ring.

Determine if gasket comes with the T-stat. Often it can be reused but if out in the middle of nowhere best to have all the parts.

If you end up pulling the pipe out of the housing then replace the O-ring. This is a standard metric O-ring, perhaps the auto parts store has it or get one from Toyota.

You want the spring side of the T-stat installed facing the engine. The vent hole on the T-stat flange (or what may look like a loose rivet-jiggle valve) oriented in the up position so that it aligns with the upper stud that helps hold on the housing.

If there is no dedicated vent onto top of the housing or engine area it bolts to then no venting is required.

When draining the coolant if possible make a note as to how much came out.

Add coolant and when almost full squeeze the upper and lower radiator hoses to purge the air out of them. As more air comes out, add more coolant.

Ideally you will end up adding slightly less coolant that was drained out.

With the radiator cap off, start engine and let it heat up. Once the T-stat opens the coolant level may drop, add more coolant. Check for leaks at the housing, pipe, etc.

Fill the overflow reservoir with coolant then with radiator cap on drive the car. Check for leaks.

When engine is cold remove that radiator cap to make sure the coolant is really topped off. Check overflow tank fluid level and if required top off.
Hi Joey P
Thank you very much for your explaining in details. I am really appreciated!
 
  #4  
Old 12-14-2011, 07:50 PM
Senior Member
Join Date: Sep 2008
Posts: 965
Default

V6 is very complicated vehicle... getting info to other site is a good way to start understanding it.
 
  #5  
Old 12-26-2011, 12:14 AM
Junior Member
Join Date: Dec 2011
Posts: 8
Default

This weather it will stay cool for an extended period because the engine is slower to heat up than say on a hot summer's day.
Get a friend or mechanic to bleed the air from the heater hoses first as this is the most likely cause of no heat from the heater.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
tvsdprasad
PRIVATE For Sale / Trade Classifieds
0
05-21-2015 04:17 AM
Steelhead
General Tech
8
05-25-2009 07:53 AM
jasonrobinette
General Tech
1
12-26-2006 10:13 PM
tong
General Tech
1
12-06-2006 12:41 PM
ecdhold
General Tech
0
08-07-2006 08:48 PM


Thread Tools
Search this Thread
Quick Reply: Changing Thermostat on 94 V6 engine help!


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.