Protesters, led by well-known street minister Pastor Mo, stood in front of Eastern Auto Shop on 8 Mile Road in Southfield.
They accused the business of ripping customers off, over charging them for services not needed to fix cars.
Pastor Mo tells 7 Action News he's a victim, saying they gave him an estimate for more than $3,600 for repairs. He claims he took his car to another shop, and was told the work would only cost $288.
He also claims he was attacked by workers when he tried to record an encounter he had with them.
Pastor Mo says he was also blocked in by cars there, and now has filed a formal police report against the shop. He claims there are many more victims out there.
Workers told us they are not ripping customers off, and every charge they give is for the appropriate work. They say the protest is bogus and any claims against them are false.