low coolant on Cadillac SRX

Average mileage: 102,875 (60,000–149,000)
Engines affected: 3.6L V6, 4.6L V8
4 model years affected: 2004, 2005, 2006, 2009
11 people reported this problem
6 people shared problem details
2005 Cadillac SRX- 4.6L V8100,000
I'm losing about a cup of coolant every 4-6 weeks. I cant find any external leak, but I can smell it on occasion.
2009 Cadillac SRX- 3.6L V685,000
My srx loses coolant at a rate of about 4-6oz every 2wks to a month.I have had all types of testing done, and no one has been able to find the leak, internal or external. I have no lights on and have never over heated. I have been told that it could be a head gasket, but i had the test for combustion and pressure done both negative.
2004 Cadillac SRX- 3.6L V6110,000
Can not find a leak, can also smell it now and then.
Every other month I have to add coolant...
2006 Cadillac SRX- 3.6L V6100,000
I have also been experiencing the issue of low coolant with my SRX. I have on quite a few different occasions noticed that I smelled coolant and checked to see I could see any leaks, but I was unable to see anything. I live on a hill and as I stopped and began backing in my driveway today I noticed a strong coolant odor. When I got out to check the vehicle it now appears there is a leak coming from somewhere under the car. When I turned the car off, the dripping stopped. My next stop is to the repair shop. (Keeping my fingers crossed that it is not a pricey repair...)
2005 Cadillac SRX- 4.6L V899,000
need to add coolant every month
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