2007 Overheating driving me crazy!!!
03-08-2011, 05:49 PM
#21
4th Gear Member
Join Date: Apr 2008
Location: San Diego, CA
Posts: 1,486
You got me man, wonder if there is a block in the heater? I know when you fill the system, you have to turn on the heater...check the routing here:
http://iihs.net/fsm/?dir=179&viewfil...%20Cooling.pdf
Does the heater work correctly?
http://iihs.net/fsm/?dir=179&viewfil...%20Cooling.pdf
Does the heater work correctly?
Last edited by Roy_R; 03-08-2011 at 05:54 PM.
03-08-2011, 07:13 PM
#23
4th Gear Member
Join Date: Apr 2008
Location: San Diego, CA
Posts: 1,486
Well, think about it...the only reason the coolant can overheat is if it doesn't flow through the engine. I would start to isolate parts of the cooling system as shown in that diagram and test them for flow-through. If the "upper radiator hose" doesn't warm up after idling the car for 10 minutes, then there is a blockage.
B5 CHECK THE THERMOSTAT OPERATION (4.6L (3V) ENGINES)
• Start the engine and allow the engine to run for 10 minutes.
• Feel the upper radiator hose.
• Does the upper radiator hose remain at ambient
temperature?
B5 CHECK THE THERMOSTAT OPERATION (4.6L (3V) ENGINES)
• Start the engine and allow the engine to run for 10 minutes.
• Feel the upper radiator hose.
• Does the upper radiator hose remain at ambient
temperature?
03-08-2011, 11:51 PM
#24
4th Gear Member
Join Date: Nov 2007
Location: SW Virginia
Posts: 1,047
well if the heat works when it has coolant in it then the thermostat is definilty opening and it has to be flowing through if heater core is working. The only thing I could gather is the pump is not pumping enough which makes sense or there is a partial blockage in the system slowing the flow down
Also how fast does it heat up when your driving it down the road.
Also how fast does it heat up when your driving it down the road.
03-10-2011, 08:58 PM
#27
4th Gear Member
Join Date: Nov 2007
Location: SW Virginia
Posts: 1,047
The only thing that I could think is flush it really good and if that doesnt work get the fan checked out by a tuner. If nothing else take it to a shop let them figure it out. I know it sucks but you have tried all reasonable options
03-11-2011, 12:55 AM
#28
Thread Starter
Join Date: May 2006
Posts: 35
Changed the temp sensor, turned the car back on and the fan kicked on within a min. Fan seems to me working more frequently now. the tip of the sensor was black not sure if that means anything. Drove it around tonight with no problems we'll see what tomorrow has in store.
03-11-2011, 12:56 AM
#29
Thread Starter
Join Date: May 2006
Posts: 35
Any place I can go to get the fan checked by a tuner? Also the car has been in the shop and they couldnt figure it out either.
03-11-2011, 01:53 AM
#30
4th Gear Member
Join Date: Dec 2010
Location: Gallifrey
Posts: 1,596
Have ya had it purged and redone? If what you just did doesnīt do it..
I skimmed, but I didnīt see that you noted the fan wasnīt working, just that it boiled over. Perhaps itīs just a bad ratio/mixture (coolant/water) as stated previously?
Last edited by wayne613; 03-11-2011 at 01:56 AM.