Whoa, don't get ahead of yourself!! You're looking at the wrong engine diagram from the sound of it. You're looking at the diagram for the Dual Overhead Cam (DOHC) 3.4L V6. You have the 3100 V6. These are two entirely different animals. The 3100 does NOT have a timing belt, only a timing chain (as it's Overhead Valve, or OHV).. One of the most common problems on the GM 3.1L and 3.4L V6 engines is coolant leaking from the intake manifold gaskets. This problem has been a gold mine for GM and the auto repair industry.. If you do own a vehicle equipped with a 3.1L or 3.4L engine, chances are that you have already experienced this 'intake gaskets leaking coolant.
Engine Notes With one notable exception, all of the 60° V6 engines in GM's 2.7/3.1/3.4L family have been conventional pushrod designs with two vales per cylinder. The one exception was the dual overhead cam (DOHC) "LQ1" version of the 3.4L engine produced from 1991 to 1997. The 3.1L V6 utilizes a 3.50" bore with a 3.312" stroke.. 11) Remove the alternator. There are two bolts in the back that hold it along with the pinion one in the front. The bracket for the alternator will have to come off after the alternator is removed. There are four bolts holding the alternator bracket and an engine eyelet for pulling the engine out.