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Cadillac de ville: HiMy son has a 97 Cadillac De Ville 4…

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Hi My son has a 97...
Hi
My son has a 97 Cadillac De Ville 4 door well anyway his car is overheating could you please let me know why it is doing this and what to do to fix the problem.
Thank You'
Carole
Submitted: 3 years ago.Category: Cadillac
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Answered in 3 minutes by:
6/12/2015
Cadillac Mechanic: Jerry, Master Mechanic replied 3 years ago
Jerry
Jerry, Master Mechanic
Category: Cadillac
Satisfied Customers: 17,221
Experience: ASE Master tech, 30 years experience
Verified
Hello and welcome. My name is ***** ***** I will be happy to assist you today.
.
They are sometimes bad about the radiators clogging up and causing an overheating. You can have that tested at a radiator shop or feel around the core when the engine is hot to see if there are any cool spots that would indicate a clog.
.
However, with any engine that runs hot, overheats or has been overheated it is best to check the integrity of the engine, (head gaskets and heads, etc.) Which they are common on the Devilles.
.
The first thing that you want to do is check the cooling system for any exhaust gases. Make sure that it’s full first. There is a tester for that, that you can get from Autozone for about $20. They will normally lend you the tester and you just buy the fluid for about $8. It comes with instructions, but there is a blue fluid that is used in it, if the fluid turns yellow, that is exhaust gases.
.
Block tester available is:
Napa BK.(###) ###-####
OEM/Block Tester AUTOZONE
Part Number:
27145
http://www.autozone.com/autozone/accessories/Tools/Block-Tester/_/N-25dh?filterByKeyWord=block+tester&fromString=search
.
*****You will want to check it at different RPM’s and at different temperatures***
..
.
If there are any exhaust gases in the cooling system, that will cause more pressure than desired and will allow the engine to burn coolant and/or heat the coolant up too high. Most times not filling the crankcase with coolant either and not smoke out the exhaust.
If there are, then there would be an internal engine problem, like a head gasket or head.
.
.
Please don’t forget to rate the answer, **** THAT IS THE ONLY WAY I GET PAID **** if you need any more on it, I will be here.
.
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