Two problems related to coolant leaking have been reported for the 2008 Chevrolet Impala. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 Chevrolet Impala based on all problems reported for the 2008 Impala.
This coolant crossover pipe gasket leak has been a repeated and multiple vehicle problem with the 3. 9l and 3. 5l and gm only came up with 2 technical service bulletins; the last one was #07-06-02-006e: coolant leaking from engine (replace coolant crossover pipe gaskets) - (Mar 5, 2012). However, the new gasket design presumably repaired the leak. However, it did not. I have seen this issue discussed on several web sites with all complaining about the same unresolved issue. My 2008 Impala with the 3. 9l v-6 has been repaired for this issue on the following dates, each time I was assured it was satisfactorily repaired: 02/09/2019 � diy due to dealership cost. Repaired per gm TSB/gm technical service manual. 11/30/2016 � dealership. 03/10/2014 � dealership. 01/11/2013 � dealership. And now, it's leaking again! I chatted with Chevrolet online on 10 Apr 2020 and cecil said that warranty had repaired it once, but the issue has been and still continues. Gm would no longer repair the leak. This is what I was told: cecil at 15:40, Apr 10, 2020: unfortunately, once the decision is final that it cannot be changed anymore. But here is what we suggest, you can take the vehicle to a certified gm dealership about this to have it diagnosed and it might the same symptom but different root cause. We cannot perform diagnosis over chat. Cecil at 15:41, Apr and for assistance, I highly suggest that you speak with the customer experience manager or cem at the dealership. However, the dealership is the one who told me that it could no longer be covered under warranty! this issue is something gm should have long resolved with a better solution. This leak is a continual problem and gm doesn't offer any better repair options and will not repair the leak again.
Tl- the contact owns a 2008 Chevrolet Impala. The contact stated stated she had her vehicle serviced for a routine oil change. The dealer informed the contact there was a leakage from the cooling reservoir and head gaskets. The dealer stated the seals on the motor mount and a new coolant reservoir would need to be installed. The manufacturer was made aware of the failure. The vehicle was not repaired. The failure mileage was 89,000. Az.