CHICAGO (WLS) -- The ABC7 I-Team is investigating after consumers said their vehicles were left unusable after "bad oil changes" caused damage.

There are tips consumers should know to prevent costly repairs and ensure safety.

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Engines were dying and consumers were unable to drive their cars after getting what they call "bad oil changes."

The I-Team is finding out what drivers can do to protect their vehicles.

Reverend Willie Tyler recently got a Chevrolet Equinox as a gift from his son. So why is it dead?

"The car wont run at all?" the I-Team asked.

"Yes sir," Tyler said.

"All this from an oil change?" the I-Team asked.

"Yes, sir," he replied. "I don't know what to think."

Tyler says the car stopped running shortly after get

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