For Nissan Altima Hybrid owners the carbon buildup is about to hit the fan, or not, which is the problem. Be ready to spend at least $4,500 to replace the cylinder head in your car. My 2008 Nissan Altima Hybrid needs a cylinder head replacement at a minimal cost of $4,500.
Carbon buildup due to improper discharge is the cause. It's a design/manufacture defect known to Nissan for years and they’ve acknowledged in an internal bulletin that it is occurring in at least 1 in 4 Nissan Altima Hybrids. My Altima is within the five-year warranty period, but has 64,000 miles on it so falls just outside warranty.
They won't honor the warranty and won't recall.
Bad company - Bad car.
I can't point out any favorite features when my 2008 Nissan Altima Hybrid runs so rough it feels constantly like it is going to stall. Nissan wants me to pay them $4,500 to fix a problem they created by putting springs in the cylinder head that are too strong. Literally, highway robbery.
Nissan Motor Company could take more responsibility for their manufacturing and design flaws, like Toyota does, rather than trying to hide them.
This is a company that is not to be trusted.
We have 2007 Nissan Altima Hybrid has the same problem.
It has 25243 miles on the car, but it is over 5 yrs(5 yrs +
The cylinder head (valves) has to replace & it was in the Dealer for a week.
Nissan is not willing to pay the warrenty repair
Nissan only pays materials cost.
We have to pay all labor ($2888).
It is the design problem for the Hybrid which is for city street driving for saving gas, but the poor engine design causes Carbon build up
around valves(in cylinder head).
Nissan should pay the repair warrenty.
Nissan should send warnings to user(s) to drive in high way
ratio between city street driving vs highway driving to prevent carbon build up in valves(engine).
Nissan Hybrid is bad car for city driving.