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9-5

You may have a dirty or failing idle air control valve. The idle air control valve reads the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and at idle. Since...

Claimed by Robert Tomashek

Hello, thank you for writing in. The first step is identifying where the noises are coming from. We need to determine if it related to the tires and suspension, if it is an engine problem, or if it is transmission...

Hi there. The white smoke coming from the exhaust system indicates that there is water (coolant) in the exhaust system. This is caused by the coolant getting into the combustion chamber and burning off with the fuel. The coolant is...

This may be a sign of a failing throttle position sensor (https://www.yourmechanic.com/services/throttle-position-sensor-replacement). The throttle position sensor (TPS) is a sensor used to monitor the throttle position of the throttle plate inside the throttle body in relation to your foot position...

Hi there! Blue smoke coming from the vehicle's exhaust is typically an indication of two mechanical component failures. First, when the smoke comes out while the vehicle is accelerating, it's commonly caused by damaged piston rings. Piston rings can wear...

Manual transmissions use synchronizers as buffers between the engagement of the gears. When a manual is difficult to get into reverse, it is either due to the reverse lockout failing or the reverse synchro being worn and taking a few...

Hi Steve. Thanks for taking the time to contact YourMechanic.com today. I think the root source of these issues is the catalytic converter to straight pipe conversion that was completed. Unless the previous owner reprogrammed the ECU (which is highly...

It sounds like you are having a crankcase ventilation problem. There is a series of baffles in the valve cover and a vent pipe that allow vapors and pressure to escape from the crankcase into the intake as they build...

Starting with the coolant sensor. While the coolant sensor (https://www.yourmechanic.com/services/coolant-temperature-switch-sensor-replacement) may be an issue, rarely if ever will a failed coolant sensor prevent the engine from cranking. It usually will just effect engine performance and economy. If the engine shut...

The cap on a car radiator is designed to withstand internal cooling system pressure, as the system heats up, of 16 to 20 psi (pounds per square inch) depending on the particular vehicle. If your cap has failed, and thus...

Hello there, thank you for asking about your 2001 Saab 9-5. I would recommend checking the idle air control valve. If you would like help, an expert from YourMechanic can come to your home or office to diagnose your car's...

Hello there. In most cases similar to this, the alternator and battery will fix the issues you have described. In more rare cases, there may be other things that cause the same symptoms. They are the battery cables, alternator fuse,...