Question: 1981 Toyota 2 WD pickup standard 22R mileage: 142,000. What is vapor lock? How do I fix it? Do I have to pull the carburetor off and completely rebuild it to replace the float? Is there some way to test the fuel pump pressure without taking it to a garage and having it hooked up to gauges? I am having some kind of fuel problem but it does not happen all the time. These are some of the things I think could be wrong. Thanks