I was wondering before i replace my t-stat.... - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


General GM Chat When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made. Chat about all things GM (and related cars). Off-topic stuff should be in the Lounge, and all Model specific mechanical problems should be posted in the proper forum.

Reply
 
 
 
Thread Tools Search this Thread
Old 01-24-2005, 12:13 AM   #1
Senior Member
True Car Nut
Thread Starter
 
Join Date: May 2003
Posts: 7,262
Thanks: 0
Thanked 0 Times in 0 Posts
ssesc93 is on a distinguished road
Default I was wondering before i replace my t-stat....

I will tell you my symptoms and let you alll decide if this is the reason for a new stat. I start my car up and leave it running between 30-45mins and then drive. The car temp is at 200-215*/ Once I statrt driving for a while like maybe 5min, the temp drops. It will go down to 150-165*. The heater is on 90* and on high and will suddenly blow cool air while the car temp drops. So, is this the common sign for a bad t-stat?
ssesc93 is offline   Reply With Quote
Old 01-24-2005, 12:15 AM   #2
Senior Member
Posts like a Northstar
 
Join Date: Dec 2004
Location: Troy, Michigan
Posts: 757
Thanks: 0
Thanked 0 Times in 0 Posts
Ireli is on a distinguished road
Default

Don't you think that leaving the car on for 30 minutes is too much?
I've heard that it'* a bad thing. But I don't actually know that if that'* the reason why you have a problem.

I'm very sorry though.
Ireli is offline   Reply With Quote
Old 01-24-2005, 12:16 AM   #3
Senior Member
Certified Car Nut
 
Join Date: Jun 2003
Posts: 15,928
Thanks: 0
Thanked 0 Times in 0 Posts
BonneMeMN is on a distinguished road
Default

It'* staying open too long, or it'* a very cold Tstat, letting too much coolant flow and cool.

30-45 min of idling is very bad for your car. I would suggest a much shorter time.
BonneMeMN is offline   Reply With Quote
Old 01-24-2005, 12:17 AM   #4
Senior Member
True Car Nut
Thread Starter
 
Join Date: May 2003
Posts: 7,262
Thanks: 0
Thanked 0 Times in 0 Posts
ssesc93 is on a distinguished road
Default

Quote:
Originally Posted by Ireli
Don't you think that leaving the car on for 30 minutes is too much?
I've heard that it'* a bad thing. But I don't actually know that if that'* the reason why you have a problem.

I'm very sorry though.
Nope, I leave it running like that so I won't have to sit in a cold car. I only had the car for a month now. I am doing some major work on her, thats all. But i need to know if this is the t-stat or something else.
ssesc93 is offline   Reply With Quote
Old 01-24-2005, 12:19 AM   #5
Senior Member
Certified Car Nut
 
Join Date: Jun 2003
Posts: 15,928
Thanks: 0
Thanked 0 Times in 0 Posts
BonneMeMN is on a distinguished road
Default

It'* the Tstat, but you'll be making more problems down the road if you let it idle that long.
BonneMeMN is offline   Reply With Quote
Old 01-24-2005, 12:32 AM   #6
Senior Member
Posts like a Northstar
 
Join Date: Dec 2004
Location: Troy, Michigan
Posts: 757
Thanks: 0
Thanked 0 Times in 0 Posts
Ireli is on a distinguished road
Default

EXACTLY!!!!!!!!
Stop doing that! Just 10 minutes is more than enough!
Ireli is offline   Reply With Quote
Old 01-24-2005, 08:49 AM   #7
Senior Member
True Car Nut
Thread Starter
 
Join Date: May 2003
Posts: 7,262
Thanks: 0
Thanked 0 Times in 0 Posts
ssesc93 is on a distinguished road
Default

Can you all tell me what problems are in the long run then?
ssesc93 is offline   Reply With Quote
Old 01-24-2005, 09:01 AM   #8
Senior Member
True Car Nut
 
Join Date: Jul 2003
Location: Westerville, Ohio 2000 Black SSEi
Posts: 6,127
Thanks: 0
Thanked 0 Times in 0 Posts
Rogue is on a distinguished road
Default

You only want to let the car idle enough to get the engine temp up to about 140. Driving it will heat it up faster then idling. Prolonged idling will cause carbon buildup on pistons leading to higher compression and thus more prone to detonation. Also you may be running to long in a rich condition which possibly could foul out the 02 sensor much faster.
Rogue is offline   Reply With Quote
Old 01-24-2005, 09:04 AM   #9
Senior Member
True Car Nut
Thread Starter
 
Join Date: May 2003
Posts: 7,262
Thanks: 0
Thanked 0 Times in 0 Posts
ssesc93 is on a distinguished road
Default

ok, thanx. I just put that o2 sensor in yesterday. dont want to get another one no time soon either
ssesc93 is offline   Reply With Quote
Old 01-24-2005, 02:43 PM   #10
Senior Member
Posts like a Corvette
 
Join Date: Jan 2003
Posts: 1,250
Thanks: 0
Thanked 0 Times in 0 Posts
bmsgaffer86 is on a distinguished road
Default

The o2 should be fine if everything else works right correct? Ive had many people say that fuel injection can idle forever with no problems because its always calculating the best combustion ratio for the air speed / engine speed / air temp.

Anyway if you idle that long then you can just do the "italian break-in" aka. flooring it to clean out the carbon with some high revving.

The name came from italian made cars that need high engine speed to warm up and keep cleaned out because of the way the engine was designed. Or something i cant recall 100%

~Got a lot of information from Click and Clack... they are mechanics that write articles in the paper.
bmsgaffer86 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
REPLACE IT BEFORE IT BREAKS! PEARL_JAM General GM Chat 7 01-06-2007 06:32 PM
with 170k on my 98 Bonnie,how long before I should replace ? cvc 1992-1999 12 09-14-2005 12:40 PM
help with error codes before I make before and after marks.. delta88 1992-1999 22 02-24-2003 12:17 PM
4.3 Vortec...just wondering. BusMaster007 Performance, Brainstorming & Tuning 5 01-06-2003 10:58 PM
Just wondering... Blk_Bonneville 1987-1991 79 10-08-2002 02:17 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 01:09 AM.


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.