What's the replacement cost for a 2004 Chevy TrailBlazer timing chain ?

In the 2004Chevrolet TrailBlazer, You'll have a timing chain regardless of which engine is in Your configuration -- so this applies to all. You can expect to pay upwards of $1,700 for a timing chain replacement if going through a professional mechanic. Some estimates even put the total cost of the job near $3,000, so that's essentially Your probable range. If You don't mind giving up a week or two of Your life and You've got a little bit of confidence, You can find a replacement timing chain for a little under $100. This is an advanced repair, and You run significant risk of causing serious damage. On the other hand, saving up to $2900 for a repair on a vehicle that's over a decade and a half old seems like it may be worth the bet.