Kurtis West
Junior Member
I've got a 07 QC 5.7 1500. Its summer time in Texas which means it's hot as hell.
The last couple days while idling in heavy traffic or drive thru the truck goes above half now on temp guage.
While driving on the highway it sits 1 click below half constant.
This led me to believe its the fan clutch. Tested the clutch this morning on a cold engine and itd turn about 4-5in with a solid push. I believe that signals a good clutch. However with engine running it is a constant engaged spin.
I thought the clutch should release the waterpump.
Is this correct?
The overflow tank was halfway full, however the radiator took a bit more than half gallon to fill back up. I bled the system as well afterwards.
The tstat is a 180 I believe and is only 4 months old. I added a felpro gasket as I was having a tstat housing leak.
Waterpump gasket has had a minor leak for awhile but seems to be a bit more persistent now.
A mechanic before I got the truck added alumiseal to the radiator trying to solve tstat leak. I use the word mechanic lightly as that was idiotic.
My point is what could it be?
I know I need to eventually change the waterpump but could that minor leak only when engine is cold cause an overheat at long idle?
Could the fan clutch be slowly going out or the radiator be blocked up due to that alumiseal?
It seems that the excess fluid doesnt go back into the engine at all so maybe simply a radiator cap.
Where would yall start or should I go full ham on it and replace: radiator, cap, tstat, waterpump and fan clutch simultaneously?
Truck just finally hit 170k mi.
The last couple days while idling in heavy traffic or drive thru the truck goes above half now on temp guage.
While driving on the highway it sits 1 click below half constant.
This led me to believe its the fan clutch. Tested the clutch this morning on a cold engine and itd turn about 4-5in with a solid push. I believe that signals a good clutch. However with engine running it is a constant engaged spin.
I thought the clutch should release the waterpump.
Is this correct?
The overflow tank was halfway full, however the radiator took a bit more than half gallon to fill back up. I bled the system as well afterwards.
The tstat is a 180 I believe and is only 4 months old. I added a felpro gasket as I was having a tstat housing leak.
Waterpump gasket has had a minor leak for awhile but seems to be a bit more persistent now.
A mechanic before I got the truck added alumiseal to the radiator trying to solve tstat leak. I use the word mechanic lightly as that was idiotic.
My point is what could it be?
I know I need to eventually change the waterpump but could that minor leak only when engine is cold cause an overheat at long idle?
Could the fan clutch be slowly going out or the radiator be blocked up due to that alumiseal?
It seems that the excess fluid doesnt go back into the engine at all so maybe simply a radiator cap.
Where would yall start or should I go full ham on it and replace: radiator, cap, tstat, waterpump and fan clutch simultaneously?
Truck just finally hit 170k mi.
