Cadillac Owners Forum banner

Northstar Engines and System Technical Discussion

Discussions relating to the Northstar System and various drivetrain mechanical/electrical/sensor problems.
97.3K 25.8M
  • 97.3K
  • 25.8M

HT4100 4.1, 4.5, 4.9

This forum is to discuss the newer aluminum block Cadillac engines.
34.7K 9M
  • 34.7K
  • 9M

500, 472, 425, 368

This forum is to discuss the old big block Cadillac engines.
17.4K 7.4M
  • 17.4K
  • 7.4M

5.0 and 5.7

This forum is to discuss the newer, small block Cadillac engines.
3.7K 3M
  • 3.7K
  • 3M

V6: 3.0, 3.2 LA3, 3.6 LY7, 3.6 DI LLT

This area is for discussions regarding the Cadillac V6 engines used in the CTS, Catera, and Cimarron.
1.1K 1.1M
  • 1.1K
  • 1.1M

Vortec 6.0 / 6.2 Liter

This is to discuss the Vortec 6.0 and 6.2 engines, used in the Cadillac Escalade
217 233K
  • 217
  • 233K

Other Cadillac Engines

This forum is to discuss Cadillac engines not listed in other forums.
319 304K
  • 319
  • 304K

Cadillac Powertrain Control Module (PCM) Tuning

Ask questions - Get answers in our section for discussions regarding Cadillac PCM tuning for engines such as the LT1, LS6, L92, LQ9, LQ4, L03 (TBI 305), L05 (TBI 350) and more...
1K 532K
  • 1K
  • 532K