This seems like the switch is on its way out, I would have a certified mechanic verify that 12 volts is being applied to the windshield wiper motor. If power is present and the wiper isn't working its the motor,...
Hello, thank you for writing in. If the vehicle is cranking over, as in the starter is turning over the eninge (but it fails to start) then you are looking at a fuel or spark issue. If you are testing...
Power steering leaks are common. Since fluid is in the entire steering system leaks can occur anywhere. The most common leaks happen at the power steering pump or pressure hose. The rack and pinion and return line can leak but...
Intake and exhaust manifolds do not effect each other. If you had an exhaust manifold leak then you will hear noise but it should not effect the way the engine runs. If you have an intake manifold leaking then your...
Hi there. This jerking can occur for a number of reasons. I would first start by checking to see if the check engine light is coming on. If it is then I would scan the computer for codes. Any codes...
This may be a sign of a failing idle air control valve. The idle air control valve is located on or near your intake manifold that monitors the air intake as it is mixed with fuel prior to being injected...
Hi there. The fuel pump could have failed due to crystallization of the fuel if there is too much water in the fuel). I recommend putting a treatment of water separator in the fuel tank and let it sit for...
The charging system is not recharging the battery. This is why warning lights are on the dash and the vehicle loses power. It will jump start and run until the battery runs out of juice. The most common problem...
This can be caused from several different failed parts. First off the loss of fluid is a major leak in the system and an inspection would be needed to locate the leaking part. I have seen rusted lines causing a...
The clutch on the air conditioning compressor is a common failure item and the complete compressor is usually replaced. Once the system is opened, the receiver/dyer or accumulator must be replaced at the same time to ensure proper system operation....
Your vehicle has entered what is referred to as "limp mode" due to an engine or transmission-related failure. Often, the failure is in a sensor or electrical control type component. The first thing to do is check and see if...
Assuming the vehicle has an automatic transmission, there is a park or neutral switch on the transmission that impacts the functioning of the shift solenoids within the transmission. When this is not working properly, this may cause the vehicle to...
You should have the computer scanned and transmission linkage checked to see if the system has codes stored for transmission and shift linkage is not damaged and adjusted properly.
It could be that the transmission has failed. Or it could be that there is a bad CV joint. either one will leave you stranded in place. If he has heard some knocking when he went around turns for a...
Hi Sandy. Thanks for all the information - it's very helpful to initially provide some technical advice. It appears as if you might have a few different things going on with your Mercury Sable. First, in regards to the engine...
Fuel pressure may be good but the injectors should be checked for operation. At cold start, there is a temperature sensor that must be working properly to signal the PCM to enrich the mixture on cold start. Are there any...
Hi Ebenezer. Thanks for writing in tonight to YourMechanic.com. I have forwarded your inquiry with our sales and service team to help streamline the process of receiving an accurate estimate to have one of our mobile mechanics replace the cylinder...
Hello, thank you for writing in. The issue will need some further testing before we will know definitively. To begin, considering the symptoms, start by measuring your fuel pressure. If the pressure is weak, you want to replace the fuel...
P0174 can set if: there is an air leak after the mass air flow (MAF) sensor, such as a torn intake boot, or bad intake manifold gaskets; a dirty or faulty mass air flow sensor; a faulty oxygen sensor, incorrect...
