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Old 06-21-2011, 08:15 AM   #1
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running hot

My 04 V6 has been having some temp issues. If i sit idle for more than 5 minutes my temp needle starts climbing. I've checked my fan and it is working. I haven't found any leaks, and radiator and overflow reservoir were both at good levels. I changed the thermostat just to be sure as well. I've also changed the radiator cap. Nothing seems to fix the issue. Any ideas guys?
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Old 06-21-2011, 10:25 AM   #2
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Re: running hot

Sounds like a thermostat issue from your description since you confirmed the fans are working.
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Old 06-21-2011, 10:35 AM   #3
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Re: running hot

brand new OEM thermostat installed.
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Old 06-21-2011, 11:39 AM   #4
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Re: running hot

well sounds like you got a leak somewhere down the line. make sure you sealed the thermostat properly and put it together right!
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Old 06-21-2011, 12:17 PM   #5
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Quote:
Originally Posted by 04TRV6
My 04 V6 has been having some temp issues. If i sit idle for more than 5 minutes my temp needle starts climbing. I've checked my fan and it is working. I haven't found any leaks, and radiator and overflow reservoir were both at good levels. I changed the thermostat just to be sure as well. I've also changed the radiator cap. Nothing seems to fix the issue. Any ideas guys?
Waterpump blades might be rusted off and not moving the water fast enough to cool it down.
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Old 06-21-2011, 12:33 PM   #6
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Re: running hot

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Originally Posted by 04TRV6 View Post
brand new OEM thermostat installed.
How newly installed? You could have an air pocket in the system if it was installed right before the problem arose.
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Old 06-21-2011, 12:45 PM   #7
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Re: running hot

yea you can remove the little bolt facing upwards in front of the upper intake (highest point of the coolant system) and pour fluid in there etc just dont do it when its warm.
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Old 06-21-2011, 12:49 PM   #8
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When you reinstalled t-stat did you lose a lot of coolant? If you did did you make sure to you filled it back up completely? I had to dump the juice out of my diesel like three times and I had to let the engine heat up so I could fill my heater core back up and it lowered my coolant level like a gallon and a half....so not sure how much you lost but just chiming in to throw out some ideas
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Old 06-21-2011, 01:31 PM   #9
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Re: running hot

Quote:
Originally Posted by jaiveson View Post
well sounds like you got a leak somewhere down the line. make sure you sealed the thermostat properly and put it together right!
thermostat is sealed properly and no leaks around.


Quote:
Originally Posted by Texastboneking View Post
Waterpump blades might be rusted off and not moving the water fast enough to cool it down.
how do i check this?


Quote:
Originally Posted by PureVenom View Post
How newly installed? You could have an air pocket in the system if it was installed right before the problem arose.
the thermostat was replaced 2 weeks ago, and the problem was occuring before that. I made sure of no leaks all around after installing the thermostat, and i also purged the system to release all air.

Quote:
Originally Posted by SpectorV View Post
yea you can remove the little bolt facing upwards in front of the upper intake (highest point of the coolant system) and pour fluid in there etc just dont do it when its warm.
i used that bolt to purge.

Quote:
Originally Posted by gqsmash View Post
When you reinstalled t-stat did you lose a lot of coolant? If you did did you make sure to you filled it back up completely? I had to dump the juice out of my diesel like three times and I had to let the engine heat up so I could fill my heater core back up and it lowered my coolant level like a gallon and a half....so not sure how much you lost but just chiming in to throw out some ideas
didn't lose much coolant, and yes it is full. radiator is topped off and reservoir is at the correct level.




thanks for all the input guys! hoping to find a solution soon!
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Old 06-21-2011, 01:47 PM   #10
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Quote:
Originally Posted by 04TRV6

thermostat is sealed properly and no leaks around.

how do i check this?

the thermostat was replaced 2 weeks ago, and the problem was occuring before that. I made sure of no leaks all around after installing the thermostat, and i also purged the system to release all air.

i used that bolt to purge.

didn't lose much coolant, and yes it is full. radiator is topped off and reservoir is at the correct level.

thanks for all the input guys! hoping to find a solution soon!
Let it start getting hot. Idle the car to about 2500 rpm. Does the temp go down or up??? If down it's most likely the pump blades. If up something else.
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Old 06-21-2011, 02:17 PM   #11
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Re: running hot

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Originally Posted by Texastboneking View Post
Let it start getting hot. Idle the car to about 2500 rpm. Does the temp go down or up??? If down it's most likely the pump blades. If up something else.
ok will try that this evening! thanks!
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Old 06-21-2011, 02:21 PM   #12
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Quote:
Originally Posted by 04TRV6

ok will try that this evening! thanks!
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Old 06-22-2011, 07:30 AM   #13
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Re: running hot

well my car did the usual of making a liar out of me lol...

i had only driven her once since i changed the thermostat and once i saw the needle began to creep up i guess i assumed too soon that there was still a problem. sat at idle for almost 20 minutes yesterday. the needle did begin to climb, but i guess the thermostat did its job and i saw the needle go right back to the normal position shortly after. so after all i guess the new thermostat did do the trick.

sorry for the unneeded questions guys but thanks for your responses and input anyways!
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Old 06-22-2011, 07:33 AM   #14
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Quote:
Originally Posted by 04TRV6
well my car did the usual of making a liar out of me lol...

i had only driven her once since i changed the thermostat and once i saw the needle began to creep up i guess i assumed too soon that there was still a problem. sat at idle for almost 20 minutes yesterday. the needle did begin to climb, but i guess the thermostat did its job and i saw the needle go right back to the normal position shortly after. so after all i guess the new thermostat did do the trick.

sorry for the unneeded questions guys but thanks for your responses and input anyways!
Lol glad it works now
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