Popular questions

On cars built after the late 1990's, replacing an ECU is a much bigger deal than just plugging in a new box. The ECU has to recognize the serial number of the car and the other modules in the car....

Hello there, thanks for writing in. I'd be happy to help. The symptoms you are experiencing can definitely be caused by a faulty crank sensor. If the crank sensor goes bad, or there is an issue with the wiring the...

Hey there. If you have manual transmission, this is almost certainly the clutch slipping. It is wearing out and used gently, it will propel the car forward, but it cannot hold the torque when you accelerate harder. The clutch will...

Hello. The right solution to this problem would depend on whether you have a motorized trunk latch, or a touch pad system. If you have a motorized trunk latch, the problem could be that the latch is not catching; so...

The different models for those two years are not interchangeable for fuse box swaps. Your only way to fix the problem is to replace the fuse box if the pins cannot be tightened up. If you need some assistance...

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...

It can be difficult to determine which fluid is leaking as transmission oil and engine oil eventually turn black if they have not been serviced. Power steering fluid is another common fluid leak most cars experience. A technician must first...

There are a variety of possibilities that could be at play here. The oil light may have come on due to low oil pressure which may be what has caused the rattling you hear. If this is the case, there...

Without knowing what piston return spring you are talking about it will be hard to come up with a diagnosis for you. If you are talking about the rear brake return spring then you may have to have the rear...

I can be quite alarming to start your car and have the engine start loudly shaking. There are a number of reasons why your Ford Focus is experiencing these symptoms. I have seen a number of shaky engines due to...

Hi Jill. Thanks for contacting us today. I'm assuming that you meant to type 600 RPM instead of 6000, but if this is the case, then there are a few possible non-recall specific reasons this can happen. In most cases,...

If you request an engine overheating diagnostic the responding certified mechanic will get this resolved for you promptly. In the interim, of course it's not recommended to drive the car if it is overheating because overheating can warp the cylinder...

Hello there, thanks for writing in about your 1993 Chrysler LeBaron V6-3.0L. You are correct that fuel can gum up and the oil can form a varnish which coats parts of the engine over time. The best method for cleaning...

What you are describing sounds like an ignition coil pack that may be failing. Ignition coils are prone to this type of erratic functioning or heat cycling when they are beginning to fail due to the temperature fluctuations under the...

The cooling fans on your vehicle are controlled by your powertrain control module through the fan relay when your vehicle gets to a set temperature. There have been issues of the fan relay and module failures. If these two components...

Hi. Running the AC with the engine off will definitely drain your battery. Most automotive batteries are designed to last last about 3-5 years. Being that your vehicle is a 2002, it should be on its 3rd or 4th battery...

You need to check to see if you have spark to the plugs. Scan the computer to see if crankshaft and camshaft sensors are signaling the computer to spark. If not then replace the defective spark plug. If it's proven...

Today's fuel injected vehicles have computers that control the adjustment of fuel flow into the motor via the throttle body or in some cases, directly to the fuel injectors. In this case, there would be no need to adjust anything...

The calipers could have a piston that is sticking or the combination valve on the brake system is sticking causing the brakes to be locking up after touching the brake pedal. I recommend seeking out a professional, such as one...

Hi there, thanks for writing in. The driver restraint fault code is a common issue on the BMWs. Here is how to clear it: Step 1: choose chassis "E65", then click on "Functional Jobs" Step 2: choose "Error" on the...

Some Jeep Grand Cherokees seem to have serious leaking problems regardless of engine size or whether or not you have all wheel drive. Fluid leaks past seals inside the rack and pinion shaft and the first sign of a problem...

You may have a misfiring coil or spark plug or a problem with the camshaft variable timing. Make sure you have a fresh oil change with correct oil viscosity and have computer scanned for codes to see what cylinders were...

When the oil pressure drops lower than 8 psi, then the oil light will come on. If the oil pressure drops and there is no light, then check the oil pressure sensor harness for power. If there is power, then...