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Truck won't move while in gear
Hello and thank you for your question. The problem could be 3 different things wrong with your truck. First, look at the brake system to ensure that the brakes are not engaging when you put the vehicle in gear. If...
Ran the car with no oil and won't turn on
Hi, thanks for writing in. If you have ran your engine with no oil in it, it is almost a certainty that it will need to be replaced. If it is not starting now due to the no oil issue...
Replaced alternator and now there's a low sounding, high pitched noise, like a jet engine whistling.
Hi and thanks for contacting YourMechanic. This can be an easy fix. The alternator may have a problem with the fan blades inside it if you got a brand new design. If you got a design with the fan located...
I can't drive at high speeds without the car shaking
Hi there. Your vehicle shaking over 60 km could be caused by several things. The possibilities include: tire separation and/or balance issues, bad shocks, bad springs, and possible driveline issues (u-joints, etc.). Securing the ramp/tailgate may be in order until...
There is an antifreeze leak on the passenger side that occurs when the vehicle is on for a long period of time
I would introduce UV leak detection dye into the system, pressurize the system while cold, and leave the system under pressure overnight (the pressure will slowly bleed off somewhat but such will not affect the test). If there is any...
My truck is shifting back and forth really hard
Hi there, thank you for your question. I am going to try to help you but I can't promise anything. I had a truck do that once. I drove from Texas to Georgia towing a car, when I got to...
My Expedition vibrates a lot when stopped at a slope
Hello and thank you for your question. This symptom is not related to the engine but rather the transmission. If you drive the vehicle around and the engine runs just fine, then either the engine oil is low, causing the...
Knocking from the motor
Hi. The usual cause of the loud knocking in these motors are one of two things (or both). The timing chain guides become loose or worn out and sometimes causes the engine to knock or tick when it is running....
My radiator hose is soft like I can squeeze it. I was checking for air in the line cause it feels like I got heat until I turn up
A faulty hose can not create this symptom. If a radiator hose can be squeezed, it only means there isn't pressure in the cooling system, but this can indicate a problem. Cooling systems are designed to hold pressure. This raises...
What kind of damage can a bad catalytic converter do to my vehicle?
A clogged catalytic converter will cause the performance of the engine to suffer. It will run rough, could begin to misfire or lose power, and the gas mileage will suffer. A clogged catalytic converter can also cause engine damage, and...
my truck feels like the rearend is going out
Hi There, If the brakes have been confirmed not to be the issue, I would recommend having the axle inspected by a qualified professional. This would likely involve removing the fill plug to the differential to see if the fluid...
Gear shift indicator won't go into park
Hello, thanks for writing in. There is an adjustment procedure for the shift indicator on your vehicle. Some shop repair manuals will outline how to make the adjustments, but it would be best to consult a certified mechanic that has...
Radio not very loud at full volume
Hello there. Many faults will cause your 1999 Ford Expedition to have low output from the stereo. The most common faults would be blown speakers, a failing radio, or a wiring harness fault. A qualified Technician such as one from...
Bad EGR code
Hello and thanks for your question. It seems that there may be excessive carbon build-up on the cylinders inside your engine. I recommend getting a carbon cleaner for your engine, like engine cleaner or sea foam. It is best to...
When the car hits 40 mph it feels like it wants to stall and slow down.
This is a sign of a potentially failing or dirty mass air flow sensor. This is a unit that regulates the air intake into your engine and ensures that proper air/fuel mix is injected into the engine. When this is...
Overdue for an oil change. Now the car won't run without foot on the gas.
Hi - first task is to get oil back up to level - then check for problem codes, whether the Check Engine Light is illuminated or not. This engine has a large history of ejecting spark plugs out of the...
Truck starts to overheat and blows cool from the heater but fixes itself after hitting a bump.
The overheating may also be caused by other issues such as a bad heater core. This is a small radiator used to warm up the interior of the vehicle making the heater operational. A valve controls the flow of hot...
What causes a major power loss while going down the highway?
Hi there. The problem you are describing, losing electrical power while driving, sounds like a charging system problem. The PCM (powertrain control module) has been engineered to recognize low charging voltage and systematically shuts down accessories to keep engine running....
Cylinder 7 misfire in Ford F-150
A misfire code is a very common fault on your 2002 Ford F-150. The first step is to determine what the root cause is, from there it can be determined what needs to be replaced. Common causes are the spark...
My truck shakes at traffic lights
Hi. The symptoms you describe could be a dirty or malfunctioning idle air control valve. Especially when hot, when the engine gets a leaner mixture of air and fuel, the idle air control will have a greater effect on idle...

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