Customers may complain about a ticking noise, engine misfire and/or SES light. This may be the result of an AFM (Active Fuel Management for displacement-on-demand) lifter that unlocks as soon as the engine is started or one that is mechanically collapsed/stuck. This TSB applies to the following vehicles:
The actual cost to install a gas fireplace may vary depending on your location, the product selected, complexity of the installation process, additional accessories purchased, and other options. 1  Top vented gas fireplace inserts cost $750 to $3,000, and installation adds another $500 to $1,000. The cost of a ventless gas fireplace is $500 to $2,500, and while there are additional installation costs, you may pay extra for finish work (such as a mantle, marble surround, etc.).
1 Inserts cost $1,200-$2,900, with professional installation adding another $600-$1,000.  A direct-vent gas fireplace doesn't need a chimney and is a way to add a fireplace where there isn't one. Installation is through an outside wall, and a pipe-within-a-pipe feature lets air in and exhaust out with just one vent. Direct-vent units average $1,200-$3,200, with installation running from $600 for a basic hookup to $5,000 or more for a fancy fireplace surround, according to Hearth.com .