What is a “Guess” repair?
I’m glad you asked! There is more than one way to fix a problem with a car (or most anything). There’s the right way which involves testing components to find the failure, and then there is the way many uninformed folks will do things in an attempt to save money (by not paying for access to quality information) or save time (by not taking the needed time to verify why something doesn’t perform as it should). So, let’s say your car won’t start and it has been found to not have any fuel pressure. It needs a fuel pump, right? Most people automatically think so and some people will want a new fuel pump, no questions asked. This is a “guess” repair as nothing has been tested to confirm anything except a loss of fuel pressure. Is the fuel pump getting power? Does the darned gas tank have any gas in it? All too often the fuel pump is replaced without testing anything else. The car still doesn’t start so now it’s time to actually find out why. Whoops! A $15 relay was faulty and not supplying a
