Q: Diesel Particulate Filter

Hi. In order for any liquid to have pressure, there has to be a restriction. The restriction in an engine is the oil clearance on the rotating parts. On a newer engine, it is roughly 0.0015 of one inch. This...

These codes are related to intake air ports not opening and closing at proper times. This can be related to carbon buildup inside the intake, a vacuum leak, or a faulty electric solenoid depending on the setup. I would start...

The internal transmission shifting mechanism of the valve body to the forward clutches is not working, or the forward sprag clutches are broken. Only a transmission pressure test would be able confirm if the problem is in the valve body...

As far as the power window fuse, there is obviously a shorted circuit causing the fuse to pop every time. The components of the system must be inspected by an automotive electrical technician to track down the fault. The stalling...

Hello! It sounds like you may have a dirty or faulty idle air control valve. The idle air control valve (https://www.yourmechanic.com/services/idle-control-valve-replacement) monitors the air intake as it is mixed with fuel prior to being injected into the engine at low...

Shaking or vibration (https://www.yourmechanic.com/services/engine-is-shaking-pulsating-or-vibrating-inspection) may be caused by many different things such as faulty spark plugs, poor fuel pressure or misfires. Other things such as a faulty idle air control valve (https://www.yourmechanic.com/services/idle-control-valve-replacement) may cause the engine idle to drop below...

Hi There, It sounds like you may have a couple of separate issues going on here. Overheating can be caused by a number of things such as low coolant levels, a faulty thermostat (https://www.yourmechanic.com/services/thermostat-replacement), a clogged radiator (https://www.yourmechanic.com/services/radiator-replacement) or a...

Hi there - your Fiat "automatic" transmission is actually a 6-speed, dual-clutch manual transmission, with some rather sophisticated electronics and actuators attached to it. These boxes are notoriously complicated, with incredible complexity in the transmission controllers themselves. Your controller is...

Check for diagnostic trouble codes which might provide sufficient clues. If, though, no codes have been stored, you can consider the typical causes for immediate stalling which are a faulty mass airflow sensor, faulty engine coolant temperature switch/sensor (typically at...