krazykarl

Was your thermostat replaced during any of the radiator replacements? Since that is what GM said causes the problem. I purchased a new radiator from Rock Auto earlier this summer and did the radiator swap myself and also installed a new thermostat in the process. No issues so far.

Noticed a faint coolant smell over the past couple months but couldn’t pinpoint the cause, coolant level didn’t seem to change. With the cold weather lately in the last week I noticed a small amount of steam coming from the front of the hood and grill after warmed up fully. It appears I have the problem covered by the 15829 Special Coverage Notice, however, my truck is a 2014 5.3L Silverado with 56,018 miles, so it is out of the 5 year coverage window. The local dealer, Symdon Motors, changed my oil today and I inquired about the leak and mentioned the Special Coverage Notice. After the oil change the service advisor indicated that they did find that the radiator had a leak and that they included an estimate of $384 labor and $491 parts to fix it since it was out of the coverage window. I asked if he thought GM would still stand behind it, he indicated that it might be worth a call since it is a known problem. I asked if he had a number to call, he indicated that I should check my manuals.... He also mentioned that they have the radiator in stock and that they could do the work next week. Must be a fairly common issue if they stock the parts.... Does anyone have any advice, number to call, experience getting a special coverage notice covered outside of coverage window?