Coolant Loss and Overheating

Cadillac Forums | Help Us Help You | Advertise | Cadillac Parts | Cadillac News | Cadillac Classifieds

Cadillac Technical Archive | Cadillac Dealers | Cadillac Reviews | Cadillac Dealer Reviews | Cadillac Vendors is the premier Cadillac Forum on the internet. Registered Users do not see the above ads.
+ Reply to Thread
Results 1 to 2 of 2
Northstar Engines and System Technical Discussion Discussion, Coolant Loss and Overheating in Cadillac Engine Discussion; I have a Northstar engine that is losing coolant quickly. The water pump, radiator cap, hoses, and thermostat are new. ...
  1. #1
    bavariansting is offline Cadillac Owners Member
    Automobile(s): Cadillac
    Join Date
    Jul 2007

    Coolant Loss and Overheating

    I have a Northstar engine that is losing coolant quickly. The water pump, radiator cap, hoses, and thermostat are new. The radiator is about 2 years old. The system has been flushed within the past three weeks. I understand that there may be a problem with the head gaskets on these engines. I have run across a product called Thermagasket that the ownership claims will fix the problem. Does anyone have experience with this product? It is an inexpensive fix, about $130.00 delivered, but almost sounds too good to be true. Particularly in light of the $3,500 to $8,000 estimates I have received from dealers.

  2. Remove Advertisements

  3. #2
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
    Automobile(s): White Diamond '03 DHS (with DTS floor shift)
    Join Date
    Jun 2004
    Woodstock Ill.

    Re: Coolant Loss and Overheating

    sounds too good to be true.
    That's because it is. There is a painful and lengthy thread by Rfishing regarding Thermogasket if you do a search. I can save you a lot of reading though and tell you that it did not work.

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

What Cadillac(s) do you own? (Or type NONE)

Please select your insurance company (Optional)

Your date of birth and age are displayed in several places on the forum. Only the administrator will have access to your date of birth should you choose to hide it via the privacy option below.


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Cadillac Posting Rules

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
Read about Lincoln | Buick | Kia Forte Forum
Need products for your Cadillac? Check out your options at the links below:

custom floor mats | Cadillac Chrome and Black Chrome Wheels | window tinting