Questions & Answers about יש תקר בצמיג.
יש is the Hebrew word used to express existence: there is / there are. So the structure of the sentence is literally there is a puncture in the tire.
This is a very common pattern in Hebrew. Hebrew usually does not use a present-tense form of to be the way English does, but for existence it uses יש.
Because תקר here is indefinite: a puncture, not the puncture. In existential sentences with יש, the thing being introduced is very often indefinite.
So יש תקר בצמיג sounds natural: there is a puncture in the tire.
יש התקר בצמיג would sound like there is the puncture in the tire, which is unusual unless you are talking about a specific puncture already known from context.
תקר means a puncture. In context, it often implies that the tire is flat because it has been punctured.
So the sentence does not just describe the tire as low or flat in a general way; it specifically points to a puncture as the problem.