Correct Temperature Thermostat???

Correct Temperature Thermostat???

Postby BillyJoBob [OP] » October 17th 2019, 9:48pm

Replacing radiator in my 98 Safari 2WD and decided it was a good idea to replace Thermostat while I have it all apart (the part about taking the entire grill and lights off to get to 2 screws is a little silly, doncha think GM?).

My question is, what temperature Thermo is correct for this engine? I see 160 to 198 temp thermos all over Rock and O'Reilly. I searched for this info here before I posted but didn't see my answer. Isn't in the GM Shop Manual either.

I have owned 3 of these 97 or 98 vans and the temp gauge on the dash always reads 195 for the normal operating temperature. That might lead me to believe any 195 thermo or the 198 AC Delco to be the correct one but would rather have someone who knows tell me.

I also have a dim memory of a discussion somewhere about not being able to pass smog in sunny CA if the wrong one is installed.


As always, TIA

BJB
Planned Adolescence

1998 RWD Safari, AC, 170K
RIP - 1998 Astro - wouldn't Smog, now owned by the State of CA
Original Poster [OP]
User avatar
BillyJoBob
Fueling (3/8 tank)
Fueling (3/8 tank)
Years of Membership: BillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full years
Posts: 48
Topics: 16
Joined: February 2012
Gender: Male
Alias (AKA): BillyJoBob
Van Model Year: 1998
Van Make/Model: GMC Safari
Extra Info: V6 RWD 180k

  • Similar topics
    Replies
    Views
    Author
  • Electric Fan Temperature Probe. Looking for available 3/8"
    by blinkibus » September 12th 2020, 3:14am in Engines
    6 Replies
    298 Views
    Last post by Rinny View the latest post
    September 17th 2020, 5:58pm
  • Thermostat
    by DaHonu » September 13th 2020, 8:12pm in Engines
    4 Replies
    176 Views
    Last post by augidog View the latest post
    September 17th 2020, 3:26pm
  •  
    6
    84
    Last post by AstroSafari.com View the latest post
    March 3rd 2021, 4:00pm

Re: Correct Temperature Thermostat???

Postby AstroWill » October 17th 2019, 10:14pm

The ones on RA that state 'OE temperature' and do not state 'Alternate Temp'.

Though the service manual will talk about using temperature sticks of 188f and 206f in the thermostat diagnostics section.

Trolls take away from productive work, best to ignore & go about your business. See: Dark Tetrad
Report terrorists and anyone inciting violence to FBI @ fbi.gov and 800-CALLFBI (225-5324)
User avatar
AstroWill
Technical Director
Technical Director
Firing on 8 Cylinders (L7)
Firing on 8 Cylinders (L7)
Years of Membership: AstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full years
Posts: 11626
Topics: 108
Images: 472
Joined: February 2009
Alias (AKA): Critical Thinking+Common Sense
Van Make/Model: Chevrolet Astro
Extra Info: I love peaches

Re: Correct Temperature Thermostat???

Postby BillyJoBob [OP] » October 17th 2019, 10:32pm

Thanks Will, shore cain't beat the service around here!
Planned Adolescence

1998 RWD Safari, AC, 170K
RIP - 1998 Astro - wouldn't Smog, now owned by the State of CA
Original Poster [OP]
User avatar
BillyJoBob
Fueling (3/8 tank)
Fueling (3/8 tank)
Years of Membership: BillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full years
Posts: 48
Topics: 16
Joined: February 2012
Gender: Male
Alias (AKA): BillyJoBob
Van Model Year: 1998
Van Make/Model: GMC Safari
Extra Info: V6 RWD 180k

Re: Correct Temperature Thermostat???

Postby AstroWill » October 17th 2019, 10:37pm

You are most welcome. 18ftlbs for the thermostat housing.

Trolls take away from productive work, best to ignore & go about your business. See: Dark Tetrad
Report terrorists and anyone inciting violence to FBI @ fbi.gov and 800-CALLFBI (225-5324)
User avatar
AstroWill
Technical Director
Technical Director
Firing on 8 Cylinders (L7)
Firing on 8 Cylinders (L7)
Years of Membership: AstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full years
Posts: 11626
Topics: 108
Images: 472
Joined: February 2009
Alias (AKA): Critical Thinking+Common Sense
Van Make/Model: Chevrolet Astro
Extra Info: I love peaches

Re: Correct Temperature Thermostat???

Postby BillyJoBob [OP] » October 17th 2019, 10:45pm

Which leads to a more dire question.

I am having trouble getting at the 1/2" nuts, one of the problems is the bolts stick up too high for a standard socket and deep sockets that will wrap around the nut can't get a driver attached cuz it's too high. I appear to need a particular off set wrench or ??? ... something?

I did one of these 10 years ago but was working at a friends mechanics shop and we both struggled with it and his complement of tools

Any ideas appreciated
Planned Adolescence

1998 RWD Safari, AC, 170K
RIP - 1998 Astro - wouldn't Smog, now owned by the State of CA
Original Poster [OP]
User avatar
BillyJoBob
Fueling (3/8 tank)
Fueling (3/8 tank)
Years of Membership: BillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full years
Posts: 48
Topics: 16
Joined: February 2012
Gender: Male
Alias (AKA): BillyJoBob
Van Model Year: 1998
Van Make/Model: GMC Safari
Extra Info: V6 RWD 180k

Re: Correct Temperature Thermostat???

Postby Leeann_93 » October 17th 2019, 11:00pm

You've removed the intake air hose at the throttle body?

Now pull the doghouse cover and unscrew the plastic wing nut at the back of the throttle body. Tilt the 'hat' - the adapter from hose to throttle body - forward and pull off. Pull the upper radiator hose from the neck - after draining enough coolant to get it below the level of the thermostat.

Now you have full access to the bolts.

Image

Oh! You'll need a 14mm to pull the nut on the back stud, then pull the ground wire off the stud, then 13mm deep for the stud just like the front.
'05 Astro AWD vin X
'02 Astro LS AWD vin X
'00 Astro LS AWD - WIP
'99 Safari XLE AWD - broke
'93 AWD EXT vin W - real broke
User avatar
Leeann_93
Team Leader
Team Leader
Firing on 8 Cylinders (L7)
Firing on 8 Cylinders (L7)
Years of Membership: Leeann_93 has been a member for 12 full yearsLeeann_93 has been a member for 12 full yearsLeeann_93 has been a member for 12 full yearsLeeann_93 has been a member for 12 full yearsLeeann_93 has been a member for 12 full yearsLeeann_93 has been a member for 12 full yearsLeeann_93 has been a member for 12 full yearsLeeann_93 has been a member for 12 full yearsLeeann_93 has been a member for 12 full yearsLeeann_93 has been a member for 12 full yearsLeeann_93 has been a member for 12 full yearsLeeann_93 has been a member for 12 full years
Posts: 13732
Topics: 44
Images: 17
Joined: December 2008
Location: MD
Gender: Female
Alias (AKA):
Van Model Year: 2005
Van Make/Model: Chevrolet Astro
Extra Info: LS AWD

Re: Correct Temperature Thermostat???

Postby BillyJoBob [OP] » October 18th 2019, 12:31am

Well LeAnn, thanks, worked like a charm and it's off

Except I see no ground wire on mine. Where should that be going?
Planned Adolescence

1998 RWD Safari, AC, 170K
RIP - 1998 Astro - wouldn't Smog, now owned by the State of CA
Original Poster [OP]
User avatar
BillyJoBob
Fueling (3/8 tank)
Fueling (3/8 tank)
Years of Membership: BillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full years
Posts: 48
Topics: 16
Joined: February 2012
Gender: Male
Alias (AKA): BillyJoBob
Van Model Year: 1998
Van Make/Model: GMC Safari
Extra Info: V6 RWD 180k

Re: Correct Temperature Thermostat???

Postby Leeann_93 » October 18th 2019, 1:46am

Should come out of the huge bundle in the wire loom and have a single wire to a ring terminal that fits onto the rear stud. You can see it in my pic; click on it to make it big.
'05 Astro AWD vin X
'02 Astro LS AWD vin X
'00 Astro LS AWD - WIP
'99 Safari XLE AWD - broke
'93 AWD EXT vin W - real broke
User avatar
Leeann_93
Team Leader
Team Leader
Firing on 8 Cylinders (L7)
Firing on 8 Cylinders (L7)
Years of Membership: Leeann_93 has been a member for 12 full yearsLeeann_93 has been a member for 12 full yearsLeeann_93 has been a member for 12 full yearsLeeann_93 has been a member for 12 full yearsLeeann_93 has been a member for 12 full yearsLeeann_93 has been a member for 12 full yearsLeeann_93 has been a member for 12 full yearsLeeann_93 has been a member for 12 full yearsLeeann_93 has been a member for 12 full yearsLeeann_93 has been a member for 12 full yearsLeeann_93 has been a member for 12 full yearsLeeann_93 has been a member for 12 full years
Posts: 13732
Topics: 44
Images: 17
Joined: December 2008
Location: MD
Gender: Female
Alias (AKA):
Van Model Year: 2005
Van Make/Model: Chevrolet Astro
Extra Info: LS AWD

Re: Correct Temperature Thermostat???

Postby AstroWill » October 18th 2019, 2:39pm

Could be that someone/PO relocated it as well. You would surely know if that ground was missing.

Trolls take away from productive work, best to ignore & go about your business. See: Dark Tetrad
Report terrorists and anyone inciting violence to FBI @ fbi.gov and 800-CALLFBI (225-5324)
User avatar
AstroWill
Technical Director
Technical Director
Firing on 8 Cylinders (L7)
Firing on 8 Cylinders (L7)
Years of Membership: AstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full years
Posts: 11626
Topics: 108
Images: 472
Joined: February 2009
Alias (AKA): Critical Thinking+Common Sense
Van Make/Model: Chevrolet Astro
Extra Info: I love peaches

Re: Correct Temperature Thermostat???

Postby BillyJoBob [OP] » October 18th 2019, 3:16pm

I will scout around but have no idea what I would be looking for

What would be the symptoms if it was missing?
Planned Adolescence

1998 RWD Safari, AC, 170K
RIP - 1998 Astro - wouldn't Smog, now owned by the State of CA
Original Poster [OP]
User avatar
BillyJoBob
Fueling (3/8 tank)
Fueling (3/8 tank)
Years of Membership: BillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full yearsBillyJoBob has been a member for 9 full years
Posts: 48
Topics: 16
Joined: February 2012
Gender: Male
Alias (AKA): BillyJoBob
Van Model Year: 1998
Van Make/Model: GMC Safari
Extra Info: V6 RWD 180k

Re: Correct Temperature Thermostat???

Postby AstroWill » October 18th 2019, 3:39pm

If everything is working fine, don't worry about it.

Trolls take away from productive work, best to ignore & go about your business. See: Dark Tetrad
Report terrorists and anyone inciting violence to FBI @ fbi.gov and 800-CALLFBI (225-5324)
User avatar
AstroWill
Technical Director
Technical Director
Firing on 8 Cylinders (L7)
Firing on 8 Cylinders (L7)
Years of Membership: AstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full yearsAstroWill has been a member for 12 full years
Posts: 11626
Topics: 108
Images: 472
Joined: February 2009
Alias (AKA): Critical Thinking+Common Sense
Van Make/Model: Chevrolet Astro
Extra Info: I love peaches

Re: Correct Temperature Thermostat???

Postby steveweed » October 23rd 2019, 11:22pm

Hey Billiejo I run a 180 in my 95 astro but I live in florida and it works fine but just warm heat in winter but only a few weeks a yr it gets cold here but 195 is stock
steveweed
Fueling (Empty tank)
Fueling (Empty tank)
Years of Membership: steveweed has been a member for 1 full year
Posts: 11
Topics: 2
Images: 1
Joined: October 2019
Gender: Male
Alias (AKA): steve
Van Model Year: 1995
Van Make/Model: Chevrolet Astro
Extra Info: conversion van


 
  • Related topics
    Replies
    Views
    Last post

Return to Engines

It is currently March 3rd 2021, 4:00pm

Engines Forum
Engine Repairs, Modifications, Diagnostics, Tuning, Upgrading, Questions.

<a href="https://ad.doubleclick.net/ddm/trackclk/N8334.275400VERTICALSCOPEINC./B20209277.204028354;dc_trk_aid=407011718;dc_trk_cid=94070067;dc_lat=;dc_rdid=;tag_for_child_directed_treatment="target="_blank"><img src="https://tpc.googlesyndication.com/pagead/imgad?id=CICAgKDrrqWwMRCAARgcKAEyCN4sAjjtai4k" border="0" align="right">
<IMG SRC="https://ad.doubleclick.net/ddm/trackimp/N8334.275400VERTICALSCOPEINC./B20209277.204028354;dc_trk_aid=407011718;dc_trk_cid=94070067;ord=;dc_lat=;dc_rdid=;tag_for_child_directed_treatment=?" BORDER="0" HEIGHT="1" WIDTH="1" ALT="Advertisement">
Moderator: chevy57bert
To create a new topic in Engines, click this button:
Previous topic Next topic
Recent Image Attachments
Attached by:
Attached by: MHM
MHM
in Engines
Views: 335
Comments: 22
Date: Yesterday
Time: 2:20pm
» Read last comment
Attached by:
Attached by: MHM
MHM
in Engines
Views: 335
Comments: 22
Date: Mar 01 '21
Time: 7:27pm
» Read last comment
Attached by:
Ken2.7
in Engines
Views: 217
Comments: 10
Date: Feb 24 '21
Time: 2:02am
» Read last comment
Attached by:
Attached by: Mmusicman
Mmusicman
in Engines
Views: 217
Comments: 10
Date: Feb 23 '21
Time: 8:38pm
» Read last comment
Attached by:
Attached by: Mmusicman
Mmusicman
in Engines
Views: 217
Comments: 10
Date: Feb 23 '21
Time: 8:41pm
» Read last comment
Sponsors

Who is online

Users browsing this forum: No registered users and 19 guests