If you have a late model Jeep Grand Cherokee, chances are your cooling fan relay has failed on you at least once by now. If It has not, then you have been lucky so far. Jeep engineers for some reason decided to use a solid-state relay, rather than a tried and trusted conventional mechanical relay. If the relay has failed more than once, there is a very good chance that you have something else going on in your cooling fan circuit that is causing these repetitive failures. These solid-state relays are extremely sensitive to various conditions. One of the most common...

If you’ve had an AC compressor fail on you, Murphy’s law states that it likely happened in the heat of the summer. Therefore you most likely want to get it fixed as soon as humanly possible. But WAIT! There are some critical steps to replacing your AC compressor that absolutely cannot be ignored. If you are replacing the compressor in your vehicle, these are a few critical steps that must be taken before installing a new compressor. These are not just suggestions; they are requirements. And your compressor warranty depends on it! Clean your internals! In the case that the compressor...

Many automobile owners and enthusiasts have heard of oxygen sensors and know that their car has one or more of them. But how many people really understand their purpose and importance to the vehicle’s engine? Modern fuel injected engines depend on a large number of factors to keep the engine running smooth and efficient. One of the most important factors in this complicated process comes from the oxygen sensors. The oxygen sensors send data to the computer to help it determine whether the engine is running rich (too much fuel) or lean (too little fuel) and the computer can then make the...

We finally had a Ford F150 come into our shop for a side mirror replacement and we are posting step by step instructions here. We have had many requests for this and we are also going to have a video posted soon on our YouTube channel. The instructions for this are very similar to all Ford truck models and please feel free to pass this on to friends in need. You can easily replace your entire side view mirror in under 30 minutes and avoid paying a high labor charge. Also, there is no need to try and remove the...

The upper intake manifold is a very common failure point on the venerable GM 3800 Series II engine. Often when it begins to fail, the car will show the symptoms of a head gasket failure, however actual head gaskets failing on this engine is VERY rare. One of the first signs of the intake manifold failure is coolant loss, these intakes can leak internally into the engine, or externally near the thermostat housing. In extreme cases, the leak can get so bad internally that it can actually hydro-lock (when an engine fills with so much liquid that the pistons cannot...