Jenni619 0 Posted June 15, 2017 Share Posted June 15, 2017 My reservoir tank was replaced three times once from Chevy twice from me. The small top hose would come off because the part of the tank it was connected to would melt and break off. This last time I caught it to late my car overheated now its parked with blown heads. Has anyone had any issues like this or is it just my bad luck? Link to post Share on other sites
SkudaLaRoo 0 Posted June 15, 2017 Share Posted June 15, 2017 I'm having the same issue with coolant reservoir leaking out of the same spot. I used JB weld plastic bonder and it worked for a few days then it started to leak out. I'm gonna try the JB water weld on top of the plastic bonder. How is your warranty? My deductible is $100 for any work. Link to post Share on other sites
Bobby MSME 100 Posted June 16, 2017 Share Posted June 16, 2017 Has any one with 2016 & 2017 Sparks experienced the coolant overflow tank issues? Has the design been changed after all the same problem with so many older models? It is an obvious design flaw and GM needs to issue a recall. What are all the class action suit lawyers doing? Link to post Share on other sites
sparkfanatic 70 Posted June 16, 2017 Share Posted June 16, 2017 I don't know about the 16/17 models but the replacement I bought from GM iwas different than the original . Link to post Share on other sites
Bobby MSME 100 Posted June 16, 2017 Share Posted June 16, 2017 4 hours ago, sparkfanatic said: I don't know about the 16/17 models but the replacement I bought from GM iwas different than the original . That is good to know, that at least GM knew there was a design flaw and changed the design. Thanks a lot for posting. Link to post Share on other sites
DeliveryDashcam 1 Posted November 3, 2017 Share Posted November 3, 2017 This has been the only problem with my Spark so far I had to replace the Coolant overflow tank also. that was 40k miles ago currently have 109k miles on it Link to post Share on other sites
Yankeesfan714 0 Posted February 26, 2019 Share Posted February 26, 2019 I have had this issue twice since 2015. This time, I took a brass pipe to hose fitting and threaded it straight into the broken return line hole. Working great so far. Link to post Share on other sites
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