Does the following passage contain a comma splice error?

The clouds made the mountain seem intimidating, a chill went up his spine.

Yes, the following passage contains a comma splice error.

Yes, the passage does contain a comma splice error. A comma splice error occurs when a comma is used to join two independent clauses (complete sentences) without any coordinating conjunction (such as "and," "but," "or") or appropriate punctuation.

In the given passage, the comma between "intimidating" and "a chill went up his spine" is joining two independent clauses without any coordinating conjunction or appropriate punctuation. To correct the comma splice error, you can either use a coordinating conjunction (e.g., "The clouds made the mountain seem intimidating, and a chill went up his spine") or separate the two independent clauses into separate sentences (e.g., "The clouds made the mountain seem intimidating. A chill went up his spine.")