Repair 7

Block seal head-gasket repair chemicals are introduced through the coolant system. These chemicals circulate through the engine while its running and clog areas where the head gasket may be leaking or blown. While not involving opening the engine case, this product can be hit-and-miss in application since it must circulate to the problem area. It cannot be used while antifreeze is still in the coolant tube. The antifreeze must be drained first.

A new head gasket must be installed if the engine is opened. The old gasket may not be recycled or cleaned up to be used again. The old gasket is already compressed by the original assembly and wont work again. Many times it is also damaged on removal. The multiple-layers steel gasket is the typical gasket replacement used in modern cars for gasket replacements. The solid copper head gasket provides a solid seal but requires machining by a mechanic to fit properly. The extra work adds to repair costs.

The composite head gaskets are constructed from granite or asbestos. Due to the materials these gaskets are not favored anymore due to poor performance and also the health risk of asbestos in general.

Elastomeric head gaskets incorporate a steel center wrapped by silicone rubber. This provides a center integrity with a squishable edge for sealing. Unfortunately, the design failed on a performance level too often so their use has fallen out of favor.

Gasket sealant provides a silicone-based gum seal between the gasket and the metal engine parts closed up. This product primarily is used on older engines as more modern engine cases are fine-tuned to fit tightly when closed up with a new gasket.

A common problem with car stereo equipment is distorted sound at high volumes. According to Autos.com, this happens when the wattage of the radio is not high enough to drive the speakers. This can be solved by replacing the speakers with ones compatible to the radio. Another fix is to add an amplifier to the stereo system, which can be purchased as a kit at most audio or video stores.

After not using a GPS system for a period of time, its common that the unit wont pick up a satellite signal when turned on. According to Maps4u.com, this is because the units satellite data is out of date. Some units can recollect the information by themselves, but the process is lengthy. However, there is a way to speed the recollection of data. Refer to your users manual for instructions on which commands can program on the unit so that the process speeds up and the unit can be functional faster.

When a car radio only receives limited radio channels, the root of the problem could be several things, states Radioshack. It could be the result of improper wiring, a problematic antenna or a damaged radio. First, check the antenna circuit and rewire it if necessary, or replace the antenna. If the radio still isnt functioning properly, the problem could be that the radio itself needs to be serviced.