1. A computer-readable medium storing instructions that, when executed by a first computing system, cause the first computing system to perform functions comprising: receiving, from a second computing system, a message identifying a symptom of a first vehicle; and sending a repair tip to the second computing system, wherein the repair tip comprises: a first phrase describing a first procedure performed on a second vehicle that exhibited the symptom, wherein the first procedure performed on the second vehicle yielded a result insufficient to determine that a component of the second vehicle associated with the symptom is defective; and a second phrase describing a second procedure performed on a given vehicle, wherein the given vehicle is either (i) the second vehicle or (ii) a third vehicle that also exhibited the symptom, wherein the second procedure performed on the given vehicle yielded a result sufficient to determine that a component of the given vehicle associated with the symptom is defective, and wherein the component of the given vehicle is equivalent to the component of the second vehicle.
1. A computer-readable medium storing instructions that, when executed by a first computing system, cause the first computing system to perform functions comprising: receiving, from a second computing system, a message identifying a symptom of a first vehicle; and sending a repair tip to the second computing system, wherein the repair tip comprises: a first phrase describing a first procedure performed on a second vehicle that exhibited the symptom, wherein the first procedure performed on the second vehicle yielded a result insufficient to determine that a component of the second vehicle associated with the symptom is defective; and a second phrase describing a second procedure performed on a given vehicle, wherein the given vehicle is either (i) the second vehicle or (ii) a third vehicle that also exhibited the symptom, wherein the second procedure performed on the given vehicle yielded a result sufficient to determine that a component of the given vehicle associated with the symptom is defective, and wherein the component of the given vehicle is equivalent to the component of the second vehicle. 6. The computer-readable medium of claim 1 , determining that neither the first procedure nor the second procedure is a visual inspection procedure; based on determining that neither the first procedure nor the second procedure is a visual inspection procedure, identifying third data that (i) is stored by the first computing system, (ii) is associated with the symptom and the component of the first vehicle, and (iii) is associated with a visual inspection procedure; and generating a third phrase by inserting the third data into a third phrase template stored by the first computing system, wherein sending the repair tip comprises sending the generated third phrase to the second computing system.