5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

runnin no thermostat

Old 05-07-2008, 08:39 PM
5th Gear Member
Join Date: May 2007
Location: Warner Robins,GA
Posts: 2,872
Default RE: runnin no thermostat

Damn this is an old thread. I'm carbed,no puter. I dont run a stat in mine even though i've thought about it. But my car runs so cool, i have manual fans and keep the temp between 160-175.
WhiteWindsor is offline  
Old 05-07-2008, 09:17 PM
5th Gear Member
Joel5.0's Avatar
Join Date: Jan 2006
Location: Puerto Rico
Posts: 3,926
Default RE: runnin no thermostat

ORIGINAL: yellow93lx

The thermostat lets the water sit in the rad so it has time to cool off. With no thermostat the water will keep moving through without cooling good and on hot days it will keep heating up until you overheat. That is also the problem if you run too cool of a thermostat.
It's noon, temperature is 105°F, you're in a traffic jam, bumper to bumper and the A/C on.... coolant temp doesn't go below 205°F (= 180° or 195° t-stat is fully open all the time)....... if the above is true, that engine will overheat........right?........

If the cooling system does not have the capacity to keep the engine within op temp, with a constant flow condition (= no t-stat), the cooling system has a fault. I work a lot of OBD-II cases that have their t-stat removed elsewhere, and end up reinstalling one, but to correct other OD/Lockup application, due to the "overcooling" condition they fall in.
Joel5.0 is offline  
Old 05-07-2008, 10:37 PM
2nd Gear Member
Join Date: Aug 2007
Posts: 201
Default RE: runnin no thermostat

bad idea. and warming it up take foreverrrrrrrrrrrrrrrrrrrrrrrrrrrr
89stanger1989 is offline  
Related Topics
Thread Starter
Last Post
Nick Oliver
V6 S197 General Discussion
10-17-2018 04:22 AM
The Racers Bench
06-02-2016 09:52 PM
General Tech
09-12-2015 07:05 AM
Texas Regional Chapter
09-10-2015 09:43 AM
4.0L V6 Technical Discussions
08-30-2015 02:01 PM

Thread Tools
Search this Thread
Quick Reply: runnin no thermostat

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 and affiliated sites.