Popular questions

I would not want to condemn your transmission without having a mechanic first going through some preliminary checks of the noises from the transmission. First, I would verify your complaint. Then I would sample the fluid for proper level and...

Hello, thanks for writing in about your Buick Cascada. Trouble code P0990 is a transmission fluid pressure fault. Possibly an internal fault in the transmission or there is a fluid leak. If the car didn't make it home, I suggest...

The P0707 diagnostic trouble code means the transmission range sensor circuit has low voltage input. The ECU looks for a specific range of voltage in the transmission range sensor and when the voltage input is low the ECU sets a...

The most likely cause for your engine performance problem is a balance chain and fuel pump issue. GMC has released Special Coverage Adjustment 12313B which outlines replacement of the fuel pump and balance chain. A fault with either of these...

Hi there, thanks for writing in about your 2013 BMW 650i. Your battery receives a charge voltage from the alternator while driving. The alternator is responsible for maintaining the charge on a battery during vehicle operation. Very low power can...

Depending on how steep the hill is you may have to down shift to a lower gear on some hills to keep the rpms above about 2000 rpms. If the engine speed drops below this then it will start to...

Engine misfires can be caused by many different problems and are generally caused by either a spark or fuel issue or in some cases, a combination of both. Spark related problems generally will result from things like ignition coils, crankshaft...

There have been many cases of defective airbags or systems causing a fault code to be stored in the system computer. If there is a fault code stored, the air bag will not deploy because the system has been shut...

Hi there - I'believe that's a 1-hr job (with the right lifts, tools, etc.). Any project always takes 3 times as long in my own home garage. Unfortunately, this is not a service YourMechanic offers at this time. Thanks for...

Hey there. This may be a sign of a dirty or failing idle air control valve or potentially an intake air leak. The idle air control valve monitors the air intake as it is mixed with fuel as it gets...

Hi there. To check to see if something is still on with the key on, remove the ground cable to the battery and put a digital volt ohm meter (DVOM) on the cable and onto the battery negative post. With...

Billing question sent to CS for the cost to repair a brake system with the ABS and brake warning light on. No information on the vehicle

The powertrain control module is programmed to go into a fail safe mode whenever there is a major failure in the transmission or engine. You will need to have the vehicle scanned to get the failure codes so it can...

This may be related to many different possibilities, some of which may be related to a lack of spark and some of which may be related to a fuel delivery problem or a combination of both. For example, if the...

Hello. The vehicle stalling can be caused by several faults. Typically to blame are fuel delivery and spark. You can perform a series of tests to eliminate some of the options. Start by using a spark tester to see if...

Hello. It sounds like you have a voltage problem. It may be a bad connection at the battery or at one of the ground connections. Both will commonly occur. Any loss of voltage will cause some serious module communication issues....

If you have not done a job like this before you might want to consider watching a professional from YourMechanic do it for you, especially as the labor time is less than 1.5 hours so it's pretty economical. The first...

The power windows are operated by power window switches. On the inside of the driver’s door, there are four power window switches. one for each door’s window. The placement of these switches corresponds with which window they operate (i.e. the...

In order to change the coolant bypass valve, you will first need to locate the thermostat housing. Once the thermostat housing has been located, the bypass hose is going to be the smaller hose that goes into the thermostat housing....

Hi. The first priority is to get the vehicle to crank over, without engine/camshaft RPM's, the engine computer will not start up the fuel pump. The starting circuit needs to be diagnosed. Some of the causes could be an ignition...

Confirm that the engine immobilizer system (security system) is not activated thus preventing the car from starting. If the immobilizer system is on, you may see a security warning light. If the warning light is on, to temporarily override the...

Have the computer checked for codes to see if the EGR system is malfunctioning. The ECM is not a common failure, and the failure may be caused by the EGR system or the engine having a misfire in one or...

Hello - given your mileage, your front struts and strut bearing plates are most likely candidates for the suspension noises you describe. Colder weather will make turning noises louder (or "creakier"). Having a helper "rock" each side of the car...

Since you ran the battery dead several times before you replaced the alternator, you caused the battery to get sulfated internally. The lead acid inside a battery will only last for so long. Most batteries will last between 3 to...