overheating

2000 CADILLAC SLS
121,000 MILES • V8 • FWD • AUTOMATIC
Avatar
PETE SC
  • MEMBER
  • 1 POST
2000 sls caddy temp guage rises start to lose heat then temp goes down heat comes back then fine till the next episode ?weird changed burp tank cap , thermostat and have a new water pump but it seems to circulate dont know iif a simple flush would do it or what ?
Feb 14, 2011 at 6:53 PM
Avatar
FACTORYJACK
  • ✓Experienced Mechanic
  • 4,159 POSTS
Before I spent too much money, I would have the system block tested for the presence of combustion gases in the cooling system. If it is losing heat, that could indicate a low coolant level, but you should also have a low coolant message. That is if the sensor is plugged in and functional. If the coolant level is low, or it is using coolant, rule out external leaks as well.
Feb 18, 2011 at 11:15 PM
Avatar
CADIEMAN
  • ✓Experienced Mechanic
  • 3,544 POSTS
have the radiator tested for circuation
Feb 25, 2011 at 2:11 PM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle