Two problems related to coolant leaking have been reported for the 2007 Chevrolet Impala. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Chevrolet Impala based on all problems reported for the 2007 Impala.
Coolant crossover gaskets keep leaking on 2nd set now. Part 12623852 12577704 gasket. Gm knows they have a issue per their bull. 07-06-02-006e . The way I notice it leaking is when the heater does not get hot, when sitting, very slow leak.
Bought 2007 Impala year ago lately getting a smell of antifreeze around pass side frt check for leaks nothing found not down on coolant and getting heat any suggestions on this.