have the cooling fans checked to see if they turn on at the set temperature. A faulty cooling fan can cause a vapor lock within the fuel line
Please read below
Modern cars, on the other hand, typically have electric cooling fans. These fans are linked to a sensor that detects the engine's temperature, and tells the fan whether to speed up or slow down. As a result, the internal combustion
engines in modern cars are less likely to overheat than those in older models, making vapor lock much less common than it used to be.
All of the problems that cause vapor lock are easily corrected, even on older cars. Older cars can often be retrofitted with the newer technology that reduces the likelihood of the fuel lines overheating. For instance, even on a carbureted engine, a low-pressure electric fuel pump
can be installed near the fuel tank, which will keep the fuel moving along the lines even if it starts to heat up in the engine compartment.
Another easy remedy for vapor lock in older cars is to install an electric fan in the engine compartment. Many auto parts stores carry aftermarket cooling fans, which can be installed on any car
. Some cooling fans can be connected to the existing engine temperature sensor
, mimicking the behavior of the cooling fans in modern cars.
Finally, vapor lock can be prevented in any car
by protecting the fuel lines from the heat of the engine. There are two ways to do this. One way is to install heat shields between the engine and the fuel lines, which will divert most of the heat away from the lines. Fuel lines can also be insulated to prevent the fuel from getting to the temperatures at which vapor lock occurs.