Engine overheating generally serves as an indicative of other problems in the car, such as the decrease of coolant level due to leakage, a stuck closed thermostat, a broken cooling fan or a blocked radiator. Irrespective of the reason behind the overheating problems, the car should be necessarily turned off before the car does any damage at all. Consequently, the following steps should be followed:

 

  • The turn signals as well as flashers should be put on for indicating that the car is being pulled off the road.
  • As soon as the problem is detected, heater setting as well as heater blower should be kept at high level, for diverting the heat away from the car engine. However, this solution might only be of help if the overheating problems occur due to the broken fan or the fan belt. After finding a safe parking place on the roadside, the car should be pulled over and the engine should be turned off.
  • The hood should be opened next for check the level of coolant in the plastic reservoir tank. However, it should be kept in minds that the radiator cap should not be opened under any circumstances when the car engine is overheated. This is because overheating problems might leave the radiator under high pressure and the hot coolant may cause very serious burns. Some cars also have pressurization inside the plastic coolant tank also. Thus, it might require at least twenty minutes for cooling, before the same can be opened for adding extra coolant.
  • In order to counter engine overheating, a funnel should be used for adding coolant into the plastic reservoir, if its level is well below the recommended low line. Appropriate time must always be given for the overheating problems to subside and the car engine to cool down, before opening the cap of the radiator. Consequently, an experienced car mechanic should be called right away for finding and repairing the leakage.
  • However, if the engine overheating is not due to the low coolant level, a more complex cooling system problem might be the problem and thus a tow truck should be called under these circumstances. The temperature gauge should be checked periodically for making sure that it does not turn into red.
  • To minimize the possibility of engine overheating, the regular maintenance of the same should be carried out. The coolant should also be changed on a periodic basis for minimizing the car overheating risk. The belts as well as the hoses should also be checked from time to time. The car should also be taken to a mechanic, for checking any possibility of leaks, in case the level of the coolant remains low consistently. It should also be noted that the coolant is generally an equal ratio mixture of antifreeze as well as water, but it is not wrong to add only one or the other into the plastic coolant tank.

A carburetor is a pivotal part of the automobile engine, which is responsible for the combination of both, the air as well as the fuel into a pre-proportioned mixture, which is subsequently sent into the engine of the automobile for burning and creating engine power. Faulty as well as malfunctioning carburetor can lead to a myriad number of car engine problems, most of which would directly affect the air and the fuel delivery into the car engine. The various problems associated with the automobile carburetor are enlisted below:

  • Black Exhaust Smoke – In this case, the car emits black and dark exhaust smoke from the tail pipe. This implies that the car is normally experiencing carburetor problems. As the carburetor is solely responsible for creating the appropriate balance between air as well as fuel, the resultant mixture only flows into the automobile engine for further ignition. If the automobile carburetor allows excess of fuel and inadequate air to mix before flowing into the into car’s engine, the black and sooty smoke normally comes out as a result from the exhaust pipes.
  • Hard Starting Condition – It is described as a condition wherein the car cranks yet fails to start at all. This is often a clear indication of serious carburetor problems. This situation generally occurs when the carburetor choke gets stuck in an open position or fails to open in an adequate manner during the initial ignition and starting. In such cases, as the part is itself responsible for cold starting the engine, the car may be quite tedious to start or not start at all. Stuck carburetor chokes are very common problems, which often prevent the automobile from being started at all.
  • Stuck Engine Idle – The period for which the engine of the car normally stays idle, depends on the temperature of the automobile engine, while it is in service. During the period when the engine is cold, idling time is generally higher in order to facilitate the engine warm-up. However, when the engine is warm, the idling time drops. If the idle in the engine either gets stuck at the same single speed or fails to change at all, it is usually indicative of carburetor problems related to the carburetor idle solenoid, in most of the cases.
  • Rough Engine Idle – The malfunction of the automobile carburetor can impact the engine idle of the car in a negative manner. By causing due interference in the air/fuel mixture of the engine, the engine idling speed as well as the fuel flow might change considerably. Carburetor problems can thus cause the engine idle of automobiles to become choppy as well as irregular, which in many instances might lead to the shutting down of the car.
  • Engine Missing – The misfiring of the automobile engine can often occur due to a faulty and malfunctioning automobile carburetor. The engine miss usually occurs owing to faulty or irregular type of engine combustion. As the carburetor restricts the flow of the air and the fuel into the cylinders of the car engine, resultant engine combustion might get compromised and lead to situation which might cause an automobile engine miss.

In order to understand the basic operation of the automatic transmission systems as well as the key components contained in them, it is pivotal top know about some major terms associated with it. The Torque Converter is a mechanical as well as fluid coupling, which connects the engine and the transmission, while acting like the clutch pedal of the standard shift vehicles. The ramping up of the speed ramps leads to spinning of the converter, which further results in the multiplication of the torque owing to the turbine unit design. More often than not, a one -way or sprag clutch is itself used in as a torque converter. Over-spinning of the converter results in increased output as well as efficiency. The decrease in engine speeds results in slowing down of the converter spinning, which must consequently catch up or completely stop, so that the engine might be driven again. Some of the major transmission system problems are enlisted below:

  • If the sprag clutch in the automatic transmission system, which is used with the converter, becomes defective, it would not allow the car to go into the low or the reverse mode. If the automatic transmission fluid is fully clean, the problem can be diagnosed by removing the converter and the transmission. The tab inside should be turned with the help of a screwdriver, while the spline is wedged using another screwdriver. If it does not spin freely in one direction, while holding up firmly in the other direction, the converter is in a faulty condition.
  • If the transmission system problems cause the automobile to not move at all, the pump pressure might be the plausible underlying cause. Although this problem is rare, as most of the pumps are reliable in nature, a quick check might be conducted by loosening the transmission cooling lines while subsequently starting the engine. A normal pump would spray the fluid under fairly high amount of pressure. However, if the gusher of the fluid is not seen, the pump may be diagnosed as the root cause of the transmission system problems. The transmission filter might also be checked after removing the service pan as a plugged filter can also cause the problems of low pressure.
  • Another one of the common transmission system problems is the delayed shifting or the harsh shifting. It might occur sue to the sticking valves inside the valve body or the shift solenoids. The newer breed of automatic transmission has been designed to be computer controlled as they utilize electro magnets for engaging or disengaging shift valves. However, the older transmissions might make use of a valve body. In some of the really old transmission systems, modulator valves might also be used instead of the throttle valves, which rely on the engine vacuum in order to determine the load values. The load values are themselves balanced against the speed or the governor values, for determining the shift points. The computer-based electromagnetic valves have the ability of engaging and disengaging based upon the computed engine values, which in turn simply determine the precise value of the shift points.
  • Mechanical failure might also occur sometimes at the gear strips. The same can be diagnosed by looking for the metal shavings, the metal chips or the bronze-colored bushing material. If any of the aforementioned parts are found, the car might have to be overhauled for repair.