Can delayed echolalia be a cause of something other than autism in a 4 yr old?

Not necessarily bad!: Echolalia is also a part of normal language development. This phase begins around 18 months of age when a child has mastered imitating words and is just beginning to imitate phrases. Echolalia peaks around 30 months of age, and declines by the time a toddler turns 3. Delayed echolalia is the repetition of words or phrases that are echoed after the fact. Autism spectrum must be considered!

Needs evaluation: Delayed echolalia can be signs of other disorder. In the us if you have concerns about a developmental delay that may affect learning, your school district is required to perform an evaluation at no charge