Engine problems of the 2008 Subaru Impreza Sti

Four problems related to engine have been reported for the 2008 Subaru Impreza Sti. The most recently reported issues are listed below.

1 Engine problem

Failure Date: 09/26/2010

1. I was driving the car on a road trip to nc when the issue arose. 2. The failure to the car was cracked ringlands on the # 2 and 4 pistons. This caused the car to produce a white smoke cloud on start up. Before I purchased this car Subaru issued a stop sale on all 2008 wrx's. The car was repaired at a local dealership under a goodwill repair. To which I was responsible for part of the cost. This repair was conducted in Mar 2010. Since then the car has been operating very well until recently to which the engine has developed a knock. I had the car towed to the dealership to determine what the issue was. The dealership contacted me the next day to inform me that the rod bearing on cyl #4 had failed. This is the same issue that prompted Subaru to place a stop sale on the vehicles. During the initial stop sale they had a range of VIN's that could have been affected, mine was not in that list. I think Subaru had mis-calculated the number of cars that were affected on this stop sale. 3. My car is currently at the dealership awaiting a re-manufactured engine, to which I have to disagree with. I purchased this car new with no re-manufactured on it from the factory. So why can a car maker place re-manufactured parts in a car for a repair?.

2 Engine problem

Failure Date: 02/22/2010

In February 2010, I purchased a 2008 Subaru Impreza Sti from a Subaru dealership with factory warranty and I purchased an extended factory warranty. Once I began getting used to the car I noticed there was an issue. When I would accelerate there would be constant "dead spots" in the power band through out the rpm range. After multiple times of bring the car in for repair the dealership could not figure out the problem. But I being very car social on the internet I found that many and I mean many people were having the same issue with the acceleration of the vehicle and some had come to find out that there motors pistons "ringlands" were cracked and the cylinder was losing compression. After multiple services as explained before Subaru finally found that my motor also had a "ringland" failure! the dealership replaced the bottom end of the motor and I received my car back. It ran great I knew that's how it should have felt in the first place. But now around 3000 miles later the same issue is back again! it is my worry that I go to pull out of a side road expecting the car to be able to make it out, and I go, but the car is bogging down and is struggling to get up to speed and the other car has to jam on there breaks or they end of rear ending me causing an even bigger problem. The same could be said for exit entrances onto highways. After researching on the internet I come to find out that this problem has been plaguing Subaru owners for years now and Subaru has done nothing to fix this issue. And this does not only effect Subaru Impreza Sti owners only but can also be found in the models such as the wrx, or outbacks DE to similar engine designs. I believe Subaru is turning a blind eye to how much of and issue this is and how big an issue this could cause. I read that most car companies when they have a widespread issue as explained they compare the cost of a recall to cost of per car issues and they go with the cheaper but this is a major problem needs resolution.

3 Engine problem

Failure Date: 06/05/2009

My 2008 Subaru impreza wrx sti had a number four piston failure with only 28,000 miles on the vehicle. The vehicle was immediately taken to a local auto shop when a problem was noticed. The shop did a compression test and found the number four piston to be at fault. Due to the possibility of damage to the cylinder walls the block and all associated internals were replaced. After removing the heads the shop owner said there were no signs of detonation on the cylinder and that the failure most likely was due to poor build quality.

4 Engine problem

Failure Date: 04/15/2009

Piston #4 had ringland failure of both ringlands on said piston in my 2008 Subaru wrx sti.


Other Engine And Engine Cooling related problems of the 2008 Subaru Impreza Sti



Impreza Sti Service Bulletins