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Often, that would be lifters making a noise. So, the first thing you'd want to do is get some good engine oil flush and have the engine flushed out, and then change the oil and filter. A lot of times,...

The engine may have lost spark or fuel pressure, or the timing belt might have broke. The ignition switch may have an intermittent open circuit which can cause stalling. If the vehicle can start back up right away, then I...

For an issue like this you are going to have the vehicle scanned to see if there is still something disconnected or if there are any codes that need to be cleared. You may have damaged the control module by...

There can only be two ways the oil is getting on the spark plug. The piston oil control rings are stuck or broken and letting excess oil into the cylinder. The intake valves seals for the cylinder...

If the exhaust smells like gasoline, the fuel mixture is either way too rich or you have a weak ignition system that is not burning the fuel efficiently. You can pull spark plugs out to check them and if they...

Hi there. Check the wheel bearing to see if the wheel speed sensor was plugged in. Those indicator lights will come on when the sensor is left unplugged. As for the engine having a misfire, check the spark plugs and...

It's possible that the water pump that was installed is faulty. The best way to determine this is to use a mechanic's stethoscope and use it on different areas of the engine to determine where the sound is coming from....

If you refer to YourMechanic's on-line clutch system tutorial you will see that there are four possible reasons why the clutch pedal would fail to return, namely: 1) a failed clutch release bearing; 2) a failed slave cylinder; 3) a...

Hi there. The sliding door has a track that the door rides in and allows the rollers on the door to move as the door motors operate. The track tends to get rust and buildup in it making the rollers...

There should be stored trouble codes that once downloaded will narrow the focus of the diagnostic. If you suspect that the accelerator pedal sensor (aka, "pedal value sensor") is faulty, that component has to be tested to rule it in...

Your engine management system is going into "limp mode" when the Check Engine light is illuminated, reducing engine power, and quite likely, leaving your automatic transmission in 2nd gear. This is why you are experiencing greatly diminished performance. Turning your...

Your car has an aluminum oil pan. They can not be repaired. Driving with an oil leak isn’t safe. Oil can catch fire if it leaks on the exhaust. If you car is cranking, but not starting, there is a...

If the engine exhaust sounds very loud, there may be a loose or broken component like a cracked manifold or rusted pipe section like on your egr valve. A technician will be able to look over the vehicle listening for...

Hi there. The glow plug light comes on when the computer is detecting an issue with the glow plugs to the engine. There are stored codes and pending codes. If the light goes out after turning the key off and...

With ignition on look to see if theft light is on or blinking to see if theft system is active. Sometimes another key if you have one will start vehicle if the key FOB is defective.If the battery is dead...

You need to check the transmission cooler line connections at the radiator are not leaking or came disconnected from the radiator. The line connection may have been damaged during assembly or the radiator had the wrong connectors and the ones...

Hello there, a few different faults can cause the AC clutch not to engage on your 1998 Nissan 200SX. The most common would be the refrigerant is low, AC high pressure switch, AC clutch failure, or lack of voltage to...

Thanks for writing in about your 2013 BMW 650i. The symptoms sound similar to a vehicle with a throttle position input error or a major boost leak in a forced induction vehicle. To verify this, I would recommend having a...

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Given the age and mileage, you might want to start with a basic cylinder compression test to see what the mechanical condition of the engine is. Although there are many possible causes of the power loss you are describing, a...

If the vehicle is 4 wheel drive, it sounds like it could be stuck in 4WD. Another possibility may be that the differential i stuck in the locked state if it is equipped with this option. Lastly, you may want...

Hi there. From your explanation of the problem it sounds like you are experiencing the onset of a transmission failure. A mechanic would drain the fluid from the transmission and inspect it for metal or debris in the fluid which...