Is there a problem with the Buick 3800 V6?
The Buick 3800 V6 is a fairly reliable engine, but coolant leaks on the Series II 3800 engines with the plastic intake manifold have been a problem. The OEM intake manifold gasket tends to deteriorate after 60,000 or so miles in the area that seals the cylinder head coolant passage to the manifold.
What causes a Buick 3800 engine to misfire?
Chances are the misfire is due to a weak ignition coil. The three ignition coils on the 3800 engine fire cylinders 6 and 3, 2 and 5, and 1 and 4.
What causes intermittent chuggle in Buick 3800 engine?
An intermittent chuggle or hesitation that can be felt during light acceleration or while cruising at highway speeds with no Check Engine light or no fault codes set may be caused by intermittent operation of the automatic transmission torque converter clutch (TCC).
Where is the crank sensor on a Buick 3800?
The sensor is located on the front of the engine under a cover behind the crankshaft pulley. If the crank sensor tests good, the problem is likely the ignition control module, a fault in the ignition wiring harness, or possibly a fault in the engine computer.
When did the GM 3800 Series 2 engine come out?
The GM 3800 Series II engine, introduced in 1995, is quite a different engine from its predecessor, the Series I engine. 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.
When did GM change the crankshaft balancer on the 3800?
Use the following procedure to properly service the crankshaft balancer on these engines. 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).
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.
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.
What is the VIN code for a 1998 Buick?
“W” in the tenth character of the VIN indicates 1998 model year, and “X” indicates 1999 model year. Engine can also be identified by a 3-character engine code (RPO code). See ENGINE IDENTIFICATION CODES table. This code may be stamped on engine.
Where are the sensors on a 3800 V6 engine?
1 Fuel pressure regulator 2 Idle Air Control Motor (IAC) 3 Mass Airflow sensor (MAF) 4 Throttle Body 5 Throttle Position Sensor (TPS) 6 Fuel Injector 7 PCV Valve 8 Coolant Temp sensor (ECT) 9 Evap Purge Solenoid 10 EGR Valve
What is distributorless ignition system on Buick 3800?
The distributorless ignition system on the 3800 V6 is a waste spark system with three ignition coils. Each pair of cylinders shares a common ignition coil. Cylinders that are opposite one another in the engine’s firing order are paired so their spark plugs share the same coil.
What kind of engine does a GM 3800 have?
Applications include the 2004-’08 Pontiac Grand Prix, 2005-’08 Buick LaCrosse and 2006-’08 Buick Lucerne. An L32 Supercharged Series III 3800 also is introduced, rated at 260 hp in the Pontiac Grand Prix GT and GTP.
What kind of engine does a 06 GP have?
I have an 06 gp base sedan 3.8 v6. @106000 we changed the trans filter ,every 3000 since we owned the car oil was changed.it suptters @30 mph to 70 mph we lost a price from the injector clip ….got a new harness …never a problem again. 9 people found this helpful.
When is the end of the GM 3800?
2008 — End of the road for the 3800. Production will cease this year, with the 3800 being retired to the big boneyard in the sky. The engine will be replaced with the naturally aspirated LZ4 3500 OHV V6, or the LY7 3600 DOHC V6 in vehicles that used the supercharged 3800.
Applications include the 2004-’08 Pontiac Grand Prix, 2005-’08 Buick LaCrosse and 2006-’08 Buick Lucerne. An L32 Supercharged Series III 3800 also is introduced, rated at 260 hp in the Pontiac Grand Prix GT and GTP.
The Buick 3800 V6 is a fairly reliable engine, but coolant leaks on the Series II 3800 engines with the plastic intake manifold have been a problem. The OEM intake manifold gasket tends to deteriorate after 60,000 or so miles in the area that seals the cylinder head coolant passage to the manifold.
Is there a recall on the Pontiac Grand Prix?
Less than 6 percent are listed in the recall. The vehicles covered by the GM engine recall were outfitted with the 3800 Series II design, manufactured between 1995 and 2004. They were identified in two phases. A 2008 recall of 207,000 vehicles applied only to turbocharged 1997-2003 Buick Regal and Pontiac Grand Prix models.
2008 — End of the road for the 3800. Production will cease this year, with the 3800 being retired to the big boneyard in the sky. The engine will be replaced with the naturally aspirated LZ4 3500 OHV V6, or the LY7 3600 DOHC V6 in vehicles that used the supercharged 3800.