The tensioners job is to keep the right amount of pressure on your SaturnVue’s timingbeltor chain. As the belt/chainstretches through normal operation, it would get loose and fall off or jump. The tensioner keeps this from happening by keeping a consistent amount of force on the belt. So, as the beltstretches it adjusts for this stretching. Saturn Vue: Bad Timing Belt or Chain Symptoms | Drivetrain Was this helpful? Saturn Vue Timing Belt Or Chain ? (2002 – 2010) | Auto From 2002 to 2007, Saturn Vue cars with the Ecotec L61 and LAT engines have a timing chain while cars with the GM L81 6 cylinder and Honda J L66 engines have a belt. 2008 - 2010: From 2008 to 2010, all Saturn Vue cars are chain driven. This entry was posted in Saturn, Saturn Vue, timing belt or chain on April 28, 2017 by. Timing belt or timing chain? - SaturnFans Forums Aug 10, 2005Okay sorry for my ignorance, but I just purchased a 1997 Saturn SL1 manual transmission. This car is immaculate. Issue is I asked the owner if they ever replaced the timing belt and they said they did not know.