Popular questions

At key on, the fuel pump is normally only powered momentarily to pressurize the system. If you are testing during this brief interval, you have to apply a volt meter at the instant the key is turned on. Otherwise, the...

Hello. It is important that you do not drive this vehicle anymore until you can get it repaired. Your fuel system will need to be flushed, the fuel pump will need to be replaced, and it is possible that the...

Hey there, thanks for writing in about your 2004 Acura TL. A common transmission issue with this generation TL. No other way to say it but the transmission is on its way out. Acura does not recommend rebuilding or replacing...

Shaking or vibrating may be caused by many different things such as faulty spark plugs, poor fuel pressure or misfires. Other things such as a faulty idle air control valve may cause the engine idle to drop below the normal...

Hi there, thanks for writing in. I'd be happy to offer my insight. I would suggest checking the idle air control module. If the motor is starving for air (similar to an engine being choked at normal operating temp), this...

The battery light can come on for a few different reasons in addition to a weak battery. I would suggest having the alternator tested. If this checks out fine and the is still on, also check the voltage regulator as...

On the 528's, there is an electronically controlled heater valve that can stick closed, blocking heated coolant from entering the heater core. Replacing this component will mean the coolant system would need to drained, filled, and bled. You may...

A high idle can be caused by a defective sensor or an engine vacuum leak. Have computer tested for codes and engine checked for vacuum leaks at PCV valve or other vacuum hoses and at intake manifold.

Hi there. The fuse box on a 2005 Chevrolet Astro van is located under the hood, near the back of the engine, on the driver side. It's contained inside a "black box" that has a few clips on the box...

It is a given that when you take your car to a mechanic for a noise, it will stop making the noise right when he gets in the car. It can sometimes be a challenge to get a car to...

If the supply of fuel to the carburetor is reduced once the engine is hot, you might have a vapor lock condition. You might evaluate the location of the fuel lines and relocate as needed. Backfiring is often caused by...

Some of the CX5s have been having severe transmission problems, which is exactly what it sounds like your's is experiencing. There have been a couple cases of complete failure, even with under 1000 miles on them. It's possible that it...

It appears that your Dodge Magnum has a blown head gasket. In most cases, when a head gasket blows, it is due to the engine overheating or contamination of coolant. The coolant mixture should be 50% coolant and 50% distilled...

Hi there: In many cases when a vehicle simply shuts off while under operation it is caused by a main relay that is failing or a distributor issue. Most professional mechanics will begin to trace this issue by determining if...

Hi - your engine could be knocking from bad fuel, ignition problems or bad bearings. Check your engine oil level first - a low oil level could be the most damaging. If the Check Engine light is illuminated, have the...

Noises are one of the most difficult problems to diagnose because they often only happen for a brief period of time and sometimes only under certain conditions. The first thing that needs to be addressed is whether the noise is...

Hello. There are a variety of reasons for why the car may not start. This may very well be a loose wire or bad grounding to the battery or potentially even a bad starter relay (this is usually noticed by...

The O2 Sensors or the Mass Airflow Sensor may be bad. The list can go on. The engine computer will need to be tested and all codes diagnosed. Since you drove the vehicle for a year with it running this...

Yes, the engineers have chose to go that way. They want to keep it so you can go to them. There's a very complicated way to check the fluid. You need all kinds of tools and special equipment. They are...

Rattling and squeaking sounds are usually something that comes from suspension or brake related issues. I would recommend having a mechanic give your truck a thorough brake and suspension inspection. Something may be broken and knocking against something else causing...

When an engine stalls, it is usually due to lack of one or two things: Either the ignition system temporarily quit working properly, or the fuel system temporarily quit working properly. It is also possible that you may have an...

It is possible that some trouble codes have been stored in your system even though the check engine light has not come on. I would recommend treating this issue the same as you would if a check engine light was...

Hi and thanks for contacting YourMechanic. When it comes to replacing the radiator in your vehicle, it is best to replace the radiator with the OEM type. If there are two types of radiators that go into your vehicle, you...

Hi...gasoline has a limited shelf life. After four months or so, but sometimes even earlier, gum and varnish develop. Gasoline that is nine months old will typically not have enough of the volatile fractions (from the refinery process) to start...

Hello, thank you for writing in. If the engine is not turning over when you try to start the car then the starter is not receiving power, or is not using the power. Several components must pass the electricity through...