Cadillac Owners Forum banner

06 DTS overheating

1715 Views 13 Replies 4 Participants Last post by  grullon10
I have an 06 dts with 182,000 miles..when I am sitting/idling the coolant temperature rises to 3/4 mark and the heat blows colder but as soon I accelerate it's the coolant temperature goes back to 1/2 and the heat blows normal.does anybody have any idea what's going on here.
1 - 14 of 14 Posts
Firts thing you got to do is to check the antifreeze it has to be low you may a leak some where. Add some antifreeze
Firts thing you got to do is to check the antifreeze it has to be low you may a leak some where. Add some antifreeze
I checked it .it was low took almost a whole jug of antifreeze
You didn't fill it to the top, did you?
Yea left maybe an inch space
It may leak again when the is cold check it again.
I found the leak the water pump is leaking smh but I'll take that over head gaskets any day ..any write ups on replacing water pumps
You have to remove the water pump housing I would recommend to do it asap . The pump may break and make sure they replace the haousing gaskets
  • Like
Reactions: 1
I changed the water pump and thermostat earlier today was a PITA.. now no leak but the coolant in the tank is bubbling/steaming.
I changed the water pump and thermostat earlier today was a PITA.. now no leak but the coolant in the tank is bubbling/steaming.
The thermostat is easy to put in backwards... "IF" it is backwards, it will not work properly.
I put the old thermostat back in the new one is a lil bit taller how do I burp the system
It would do it by it self let it run with the cap off until the fan come on and sime of coolant come out
Ok its running fine now (coolant wise) not bubbling or over heating .. now I'm having a problem with the idle while I had the water pump housing off I cleaned the throttle body and upper intake with carb cleaner and now it idles at 1600 rpm and accelerates by itself
It should go back to normal by it self or you may have to take it tobe reprogram.
1 - 14 of 14 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top