Originally Posted by geeitup Originally Posted by

I have an 08 9-3 with 104k miles and all the classic signs of intake valve failure. I have taken it to a Saab specialist who has not heard of this failure before. I do have bad compression, but, he has indicated that the problem may be from all the apparent unburned fuel entering the combustion chamber and washing the oil from the piston rings and compromising their seal. He wants to replace the fuel injector rail ($450) to rule out one or more bad fuel injectors. Apparently he is also getting a fuel injector code as well as the "300" misfire code. Does this make sense? Could it be the compression test was not conducted properly?



Thanks for any help.