Search



Go Back   MustangForums.com > Ford Mustang Tech > 2005 - 2014 Mustangs > V6 S197 General Discussion
Sign in using an external account
Register Forgot Password?
Search

V6 S197 General Discussion This section is for technical discussions pertaining specifically to the V6 variation of the 2005 and newer Ford Mustang.

Welcome to Mustang Forums!
Welcome to Mustang Forums.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!


Reply
 
 
 
 
Thread Tools Search this Thread
Old 05-23-2013, 12:45 PM   #1
4009TVM
 
Join Date: Dec 2009
Vehicle: 2006 V6 Premium
Location: Texas
Posts: 3
Default mysterious overheating need help please

I have '06 v6 my daughter is driving. Started spilling coolant. Replaced the reservoir cap. Fan died, replaced with OEM recently (fan had gone bad BTW). thought I had it done. Overheated again, replaced thermostat. Overheated again, replaced reservoir cap with Motorcraft cap. Overheated again, but no coolant appears missing. Thought it could be the water pump but garage says they can't say it is bad per the usual reasons. They also won't work on it anymore since they "can't" fix. Coolant was flushed twice and replaced.

Took to another shop last night, they checked it out and could find nothing wrong. Car has around 106K miles on it. I don't hear any unusual noises when i am around it. She now is afraid to drive it. Obviously I don't want to replace the water pump if I can't prove it's bad. What can I do?
This ad is not displayed to registered or logged-in members.
Register your free account today and become a member on Mustang Forums!
4009TVM is offline   Reply With Quote
Old 05-23-2013, 01:02 PM   #2
7 UP Mustang
1st Gear Member
 
7 UP Mustang's Avatar
 
Join Date: Jan 2005
Vehicle: 1990 5.0 HP LX 7 UP Edition and 2013 Premium Convertible
Location: Corryton, TN 37721
Posts: 117
Send a message via AIM to 7 UP Mustang Send a message via Yahoo to 7 UP Mustang
Default

Did you replace the radiator pressure cap? You said you replaced the reservoir cap, I guess you mean the over flow reservoir cap. Could be a bad pressure cap or the radiator is restricted due to build up of mineral deposits in side the radiator.

Good luck!
Larry
__________________

1990 LX 5.0 HP Convertible Known as 7 UP Edition

2013 GB Premium Convertible V6 Auto with performance package.
7 UP Mustang is offline   Reply With Quote
Old 05-23-2013, 01:06 PM   #3
4009TVM
 
Join Date: Dec 2009
Vehicle: 2006 V6 Premium
Location: Texas
Posts: 3
Default

fluids were flushed twice by garage during this ordeal, so don't think radiator is clogged up. no fluids were leaking last night when it overheated. two years ago the temp sensor housing started leaking and was replaced, doesn't leak now BTW. No idea what to do next and sure don't want to "just" replace a waterpump.
4009TVM is offline   Reply With Quote
Old 05-23-2013, 09:26 PM   #4
JimC
Moderator
 
JimC's Avatar
 
Join Date: May 2006
Vehicle: 2013 MCA convertible
Location: Michigan
Posts: 5,353
Default

You replaced the thermostat, but how about the thermostat housing? Did you check it when you put the new thermostat in? The housing usually splits on the back side and because of the way it drips it can look like a water pump leak.
__________________

JimC is offline   Reply With Quote
Old 05-24-2013, 07:05 AM   #5
Nuke
6th Gear Member

 
Nuke's Avatar
 
Join Date: Jun 2007
Vehicle: 2007 GT
Location: PA to KY ('07) to IL ('09) to MS ('10) to FL ('11)
Posts: 16,000
Send a message via AIM to Nuke Send a message via Yahoo to Nuke Send a message via Skype™ to Nuke
Default

Quote:
Originally Posted by JimC View Post
You replaced the thermostat, but how about the thermostat housing? Did you check it when you put the new thermostat in? The housing usually splits on the back side and because of the way it drips it can look like a water pump leak.
Possibly this^^^

The S197 V6's are notorious for cracked t-stat housings. Since you didn't specify where it's "spilling coolant" from, this could be it. Otherwise, I'm thinking blown head gasket.
__________________
Rick
07 GT Prem: Alloy, MT, 3.55's, Steeda CAI w/Brenspeed tunes, FRPP Stingers, 275/40/18 Goodyear Eagle F1 A/S on SVT Cobras (OE GT500's), 14" shorty, Wheelskin side scoops & qtr window louvers, A-H rear window louvers, SHR honeycomb blackout panel, Sequentials, Hella Optilux Extreme XY fogs, Silverstars
06 V6: Legend Lime, Pony Package, 14" shorty, Sequentials, Hella Optilux Extreme XY fogs, Silverstars
Nuke is offline   Reply With Quote
Old 05-24-2013, 01:18 PM   #6
Matt's 95 Stang
Resident Ginger
 
Matt's 95 Stang's Avatar
 
Join Date: Nov 2006
Vehicle: 2011 3.7 Premium
Location: Cali
Posts: 4,616
Default

Quote:
Originally Posted by Nuke View Post
Possibly this^^^

The S197 V6's are notorious for cracked t-stat housings. Since you didn't specify where it's "spilling coolant" from, this could be it. Otherwise, I'm thinking blown head gasket.
Normally you will see coolant in the oil or oil in the coolant if you blow the HG. Easy way to rule that out is to see if the oil looks like a milkshake, if not its not a HG. Could be the thermo housing like said before, or the radiator cap is busted and needs to be replaced.

Matthew
Matt's 95 Stang is online now   Reply With Quote
Old 05-24-2013, 03:10 PM   #7
Nuke
6th Gear Member

 
Nuke's Avatar
 
Join Date: Jun 2007
Vehicle: 2007 GT
Location: PA to KY ('07) to IL ('09) to MS ('10) to FL ('11)
Posts: 16,000
Send a message via AIM to Nuke Send a message via Yahoo to Nuke Send a message via Skype™ to Nuke
Default

Quote:
Originally Posted by Matt's 95 Stang View Post
... see if the oil looks like a milkshake...
If there's water in the oil, you'll usually see "baby poop" on the underside of the 710 cap... sorry, that was upside down... the OIL cap.
__________________
Rick
07 GT Prem: Alloy, MT, 3.55's, Steeda CAI w/Brenspeed tunes, FRPP Stingers, 275/40/18 Goodyear Eagle F1 A/S on SVT Cobras (OE GT500's), 14" shorty, Wheelskin side scoops & qtr window louvers, A-H rear window louvers, SHR honeycomb blackout panel, Sequentials, Hella Optilux Extreme XY fogs, Silverstars
06 V6: Legend Lime, Pony Package, 14" shorty, Sequentials, Hella Optilux Extreme XY fogs, Silverstars
Nuke is offline   Reply With Quote
Old 05-24-2013, 03:27 PM   #8
157dB
Cut & Paste Expert
 
157dB's Avatar
 
Join Date: May 2007
Vehicle: 2007 Pony Package
Location: NW Arkansas
Posts: 13,294
Default

http://iihs.net/fsm/?dir=180&viewfil...%20Cooling.pdf
__________________
NON PUMKIN JACKER
http://www.mustangforums.com/forum/5...-this-car.html
Quote:
Originally Posted by chronos View Post
You and that darn manual! If you like it so much, maybe you should marry it!
157dB is offline   Reply With Quote
Old 05-24-2013, 09:23 PM   #9
JimC
Moderator
 
JimC's Avatar
 
Join Date: May 2006
Vehicle: 2013 MCA convertible
Location: Michigan
Posts: 5,353
Default

Quote:
Originally Posted by Matt's 95 Stang View Post
Normally you will see coolant in the oil or oil in the coolant if you blow the HG. Easy way to rule that out is to see if the oil looks like a milkshake, if not its not a HG. Could be the thermo housing like said before, or the radiator cap is busted and needs to be replaced.

Matthew
When my car blew a head gasket (while still under warranty) the oil looked fine. So that isn't a foolproof test. A cylinder compression test will tell you where the leak is though.
__________________

JimC is offline   Reply With Quote
Old 05-25-2013, 03:07 AM   #10
jimkaray
4th Gear Member

 
jimkaray's Avatar
 
Join Date: Aug 2007
Vehicle: 2005 Ford Mustang Coupe
Location: Stroudsburg, PA
Posts: 1,075
Default

Quote:
Originally Posted by JimC View Post
When my car blew a head gasket (while still under warranty) the oil looked fine. So that isn't a foolproof test. A cylinder compression test will tell you where the leak is though.
Right, the head gasket can fail between the water jacket and the cylinder without impacting an oil passage. Usually it not fixed it will get bad enough over time where it will open up into both cooling and oiling passages. Check on Amazon for a tool called
Block Tester Block Tester
, it detects the presence of hydrocarbons in the cooling system and will verify a bad head gasket.

As far as flushing goes it won't do much to help a clogged radiator. Look at how thin it is, once they've corroded up inside you can't flush it out. If you remove the fan you can move your hand around and see if its hot all across it. Cold spots are clogged up and no hot water is getting through there. A infrared Heat gun would work too.

Is it clearly overheating - dumping fluid, running like crap and should be pinging badly. If not maybe just a faulty gauge or a coolant sensor.

Last thought, the water pump is easy to get at so pull it off and check it out if nothing else bad can be found. Sometimes the impeller breaks up and there is nothing left to circulate the fluid.
__________________
'05 4.0: G-Force T-5, MGW Shifter; VMP MAF/ CAI/93oct N2O Tun; CHE K-Brace & Torque Limiters, Rr Ctrl Arm; Shorty Headers; Centerforce Pressure Plate, McLeod DF clutch, Adj Slave Cyl; 8.8" 4:10's w/ T-Lok; Coast Alum D/S; FRPP Dual Ex; 18" Bullitts; CF Hood; Rr Louvers; SS Gen 1 Frt Cover. ZEX N2O - 100 shot bests: 1/4mi ET 13.495/MPH 103.95 (*only mods were VMP N2O tune & CAI; shorties w/ duals; t-lok).
jimkaray is offline   Reply With Quote
Old 05-25-2013, 03:07 AM
MustangForums
Ford Mustang




Paid Advertisement

 
 
 
Reply

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

Forum Jump

Advertising

Featured Sponsors
Vendor Directory
New Sponsors
All times are GMT -5. The time now is 05:33 PM.

© Internet Brands, Inc.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.

This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company
Emails Backup