What happens when HEI module goes bad?
Engine performance issues One of the first symptoms of a problem with the ignition module are engine performance issues. If the ignition module fails or has any problems it can lead to performance issues with the vehicle, such as misfires, hesitation, loss of power, and even reduced fuel economy.
When did the Buick 3.8L V6 come out?
The Buick 231 cu. in. 3.8L V6 engine has had a production run lasting more than 30 years. Like the small block Chevy V8, this engine has undergone many changes over the years to keep it abreast of changing consumer expectations and emissions regulations. The first Buick 3.8L was offered in the 1975 model year Skyhawk, Apollo, Century and Regal.
Is the Buick 350 V8 the same as a 3.8L engine?
The 3.8L engine shared the same 3.8” bore size as the Buick 350 V8. It also had an “odd-fire” crankshaft, which produced some idle shake and vibration. Over the years various improvements were made to upgrade engine performance. Here are some of those changes:
What causes engine to run rough after warm up?
Most likely, the causes of rough engine idle crops from the basic functional components like direct fuel injectors, PCV valve, EGR valve, Oxygen sensors, vacuum leaks, air filter, and spark plugs or wire. Now, let’s fix the issue when engine runs rough after warm up in sequence and later troubleshoot the actual cause of it. 1.
When did the GM 3800 V6 engine come out?
1980 — Larger 4.1L version of 3.8L engine offered with bigger 3.965” pistons. 1981 — Stronger connecting rods and a revised harmonic balancer and flywheel were added.
The Buick 231 cu. in. 3.8L V6 engine has had a production run lasting more than 30 years. Like the small block Chevy V8, this engine has undergone many changes over the years to keep it abreast of changing consumer expectations and emissions regulations. The first Buick 3.8L was offered in the 1975 model year Skyhawk, Apollo, Century and Regal.
The 3.8L engine shared the same 3.8” bore size as the Buick 350 V8. It also had an “odd-fire” crankshaft, which produced some idle shake and vibration. Over the years various improvements were made to upgrade engine performance. Here are some of those changes:
What kind of engine does a Buick 90 degree V6 use?
The 1961-63 198 CID engines should be avoided as no parts from 1964 and newer engines interchange. Additionally, the difficulty in finding parts for these should deter one from making this choice. If using a 1982 or newer V6, you will have to use the 1977-81 carburetor to make the engine run correctly without the computer.
1980 — Larger 4.1L version of 3.8L engine offered with bigger 3.965” pistons. 1981 — Stronger connecting rods and a revised harmonic balancer and flywheel were added.