I have a ford f150 3.7 engine when I reach 30 miles per hour my engine makes a graining noise what is it I watch my gear gauge it does it only in 5 and 6 gear at over 30 mph. can you help
I have a ford f150 3.7 engine when I reach 30 miles per hour my engine makes a graining noise what is it I watch my gear gauge it does it only in 5 and 6 gear at over 30 mph. can you help