Admin Table of Contents
When did the GM 3800 Series 2 engine come out?
While the stroke for the 3.8L engine remained at 3.4″ (86 mm), and the bore remained at 3.8″ (97 mm), the engine architecture changed dramatically. The GM 3800 Series II engine, introduced in 1995, is quite a different engine from its predecessor, the Series I engine.
When did the Buick 3.8L engine start?
The Buick 3.8L has evolved from its humble beginnings as a cheap, easy-to-build, economy motor in 1962, into one of the best pushrod motors in the world. But did you know that the engine started its “life” as a Buick V8 that had two cylinders “missing”?
When did GM change the crankshaft balancer on the 3800?
According to GM, there has been a running design change in the crankshaft balancer. This change affects 3800 engines built late in the 1995 model year (L27 and L36) and all of 1996 model year (L36 and L67). Refer to the appropriate section in the service manual if you have the previous design crankshaft balancer.
What was the fuel mileage of the GM 3800?
The result was a 205 hp and 230 lb.-ft. powerplant that had better fuel economy. To meet emissions standards of the ’90s, an EGR tube was placed in the intake manifold to reduce combustion temperatures. This increased fuel mileage by a substantial margin and provided GM some engineering success.
Why does the GM 3800 have a balance shaft?
Unfortunately, the engine still had a severe primary imbalance because it was a 90° block with a 120° firing order. GM engineers realized that the 3800 would still need a balance shaft to make it suitable for the upscale FWD cars later on.
What kind of bolts do I need for GM 3800 engine?
J 38197-MOD. (If you already have J 38197, it is necessary to only order the J 38197-MOD). The revised crankshaft balancer requires the use of three bolts (J 38197-4). Note: These bolts are 1/4” longer than the previous design. The J 38197-4 bolts are silver, while the previous tool uses black bolts.
Is there a recall on the GM 3800?
Tighten the bolt to 150 Nm (111 lb.-ft.) + 76° using J 36660. General Motors is recalling nearly 1.5 million 1997-2003 vehicles equipped with the 3.8L V6 naturally aspirated engine.