One of the worst problems that can happen to your Saab 9-4X is a bad fuel filter. When the filter goes bad, it can limit the amount of fuel that enters the engine. Without fuel, the vehicle will not run at all. With that in mind, most of the symptoms of a bad fuel filter … Read more
Bad spark plugs can cause many problems with your Saab 9-4X. Bad spark plug symptoms may be subtle, or incredibly noticeable. The basic design and task of the spark plug has changed little over the last 100 years. They sit on top of the combustion chamber and ignite the air/fuel mixture and start the power … Read more
Oxygen sensors play a vital role in both engine management and emissions control. When an O2 (oxygen) sensor go bad, it’ll cause your Saab 9-4X‘s engine to run less efficiently. Your 9-4X can exhibit symptoms when the Oxygen sensor has gone bad. Or, it may exhibit none at all. Often enough, the only sign … Read more
One of the most serious issues that can happen to your Saab 9-4X‘s engine is if it ends up with low oil pressure. Low oil pressure will cause the engine to seize up. When the oil pressure light on, it should be assumed that the engine locking up is imminent. We advise not running the … Read more
One of the most common critical engine problems is the blown head gasket. If your Saab 9-4X has blown its head gasket, you may find it running poorly or not at all. Below you’ll find the symptoms, causes, and price of a Saab 9-4X head gasket. A head gasket’s job is to create a … Read more
Your Saab 9-4X leaves the factory with a catalytic converter. It can run into problems over the normal life of the vehicle, and is often accompanied by OBDII code P0420. Below we’ll cover the location, price, and symptoms of a bad torque converter in your 9-4X. Menu: Catalytic Converter Price 9-4X Catalytic Converter Location … Read more
One of the most common issues with any vehicle, including the Saab 9-4X, is when it has fuel pressure regulator issues. A bad fuel pressure regulator can cause all sorts of problems. Most modern vehicles have the fuel pressure regulator mounted on the fuel rail. Some may be in the fuel pump assembly, but this … Read more
If you find your Saab 9-4X‘s steering wheel shakes or vibrates when you press the brakes, it is almost always the brake rotors that are the cause of the problem. There are plenty of other issues that can cause the steering wheel to wobble. But, if your 9-4X is only shaking when braking, that’s … Read more
The color of your exhaust can tell you a lot about the health of your Saab 9-4X’s engine and emissions systems. When there is white smoke coming from the exhaust, it can mean a few things. It’s not necessarily anything to be concerned about. But, a LOT of it can be a sign of … Read more
A flashing check engine light is your Saab 9-4X’s way of saying “I have a serious problem, don’t ignore me”. Most of the time, that serious problem is a misfire. This flashing light should not be ignored. When your engine is misfiring, it is dumping raw fuel into the exhaust. This raw fuel can detonate, … Read more