I turn on my car and it makes a loud thud sound it runs fine what can that be?
May 2, 2009 at 12:41 PM
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MMPRINCE4000
✓Experienced Mechanic
8,548 POSTS
Check motor mounts, check starter to make sure it is tight, also check flexplate to torque convertor bolts, make sure they are not loose, although they will normally make a knock when starting and shutting off.
May 3, 2009 at 12:06 AM
IHNARAS
MEMBER
2 POSTS
thank you for taking time out to answer my ? I really apreciate it.