: Northstar Engines and System Technical Discussion



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  1. Removing the N* from an el do?
  2. Problems with 02 DHS, need more opinions
  3. Can you name this Car?
  4. Two 4.6 Northstar Motors What are they Worth?
  5. How hot can you go?
  6. Throttle Position Sensor 94 N* - how to replace?
  7. Questions about low-mile oft-stored '02 Eldorado
  8. P0741 & P1860
  9. 96 deville egr valve cleaning
  10. Hey, all you guys, check radiator hoses
  11. Anyone who can read motor serials get in here (calling AJ)
  12. Pinging above 3000RPM with 93 octane
  13. Northstar mechanic
  14. now mine STS too Broken HG :(
  15. Cam Question For AJ or Ewill
  16. 2000-2005 Headgasket...
  17. Northstar Oil Leak
  18. 99 sts stalling out
  19. roller lifters or flat tappet
  20. po39 tcc vcc help
  21. 2000 Deville DTS Overheating
  22. Track Results and Video's
  23. big problems on 97 deville>please help me
  24. Compressor/ Air Ride Help
  25. Dealer Flush
  26. Overheating
  27. head gasket seeping oil
  28. No start (cranks OK)
  29. Advice on leak detection kits please
  30. Northstar dimensions
  31. AJ-Question
  32. New here need help
  33. help please
  34. Why didn't Cadillac make a larger displacement Northstar?
  35. Check Gas Cap Message.
  36. Changing the cams on an STS to the SLS Cams
  37. why wont my fans work?
  38. 99 STS, almost working
  39. Loud Engine Whine
  40. Over-sized Northstar Pistons
  41. overheating problem
  42. seville with shifting problems 1rst > 2nd
  43. msd coil?
  44. very hard start in the cold on N*
  45. L37 or LD8 ????
  46. Need a reliable source for Northstar Torque specs
  47. Northstar Rod Spec's & 3.6L
  48. symptoms of bolt failure/lifted heads
  49. 99 Deville Northstar Overheating -wanting non contradicting answers
  50. 2000 DeVille Overheating Update
  51. Bad Alternator?
  52. 1996 Deville Troubleshoot update
  53. Fuel pressure regulator?
  54. IAC Counts
  55. Thermagasket Does It Work???
  56. Missed one connection
  57. Those Damn HEAD GASKETS
  58. LC3 FWD Swap?
  59. ? For Ewill or AJ
  60. looking for pictures of northstar valvetrain
  61. So, here are the symptoms, whats wrong
  62. Northstar Valvetrain Clatter
  63. 200 DeVille Blows hot air at low speed turns cold
  64. Could it be the Water Pump Knocking
  65. Can anyone tell me whats wrong?
  66. Front Valvetrain Clacking
  67. labor cost to replace o2 sensor????
  68. Difference between VIN Y and VIN 9
  69. Got Code P1415 Please Help
  70. 2000 Deville with northstar
  71. 1034-loss of PCM data
  72. Obd I P046
  73. Computer/wiring problems
  74. Need help on 98 Seville/Northstar
  75. New HG Installed on a 99, Pings on Start Up?
  76. Got my 05 Deville back from Dealer!! and extra part for sale.
  77. Need help - going to see a 98 Seville STS on Sat, what do I check?
  78. Sick Tranny?
  79. Engine Help!!!
  80. 2nd annual midwest meet !
  81. 2001 Cadillac SLS LD8 Bore-increase
  82. White Smoke coming from front of car
  83. !996 Deville help troubleshoot
  84. I have a question about cold startswith N*??
  85. How do you disable the traction control perm without having to press the button in...
  86. 94 N* EGR valve ?? Engine stumbles.
  87. P0121, P0507 High Idle???
  88. 94 ETC no shift, wont idle
  89. Looking for '98 ETC mods
  90. What's your preference for plugs and wires ?
  91. intake manifold exploded/hole after backfire??
  92. 95 STS Cooling System Quirks
  93. MSD ignition
  94. Idea for vehicle to do Northstar swap on.
  95. NEED HELP - HAVE CODES P1416 and P0101
  96. quote???
  97. FPR replacement on 94 N*
  98. torker
  99. Sticking gas pedal????, high idle all of the sudden???? What do I check??? PLZ HELP!!
  100. Crankshaft & Cam sensors questions
  101. Why is my '96 Northstar now using oil?
  102. how to search forums..and cpk sensor question (2000 cadillac stalling)
  103. O2 Sensor Questions
  104. How can you tell if your HG's are shot?
  105. Rebuilt N*
  106. 97 STS vs. The drag strip
  107. 94 northstar starting problem
  108. Can i use synthetic oil in northstar?
  109. Getting Screwed
  110. Where is the main engine to body ground?
  111. white smoke n hp loss
  112. Is it me, or are alot of N*s having cracked blocks
  113. this is not an arguement thread for oil !
  114. 95 northstar tranny
  115. Is It Possible To???
  116. Engine stopped at the end of an exit ramp Any IDEAS WHY?
  117. Serpentine belt
  118. Need a VIN to a STS with the Z(W) option, I have the option but I don't like the Euro
  119. Removing EGR on a'96 SLS
  120. Whats the easy way to change the alternator on a Northstar? (99 Deville)
  121. Northstar shifting past redline
  122. 93/94 engines
  123. No Heat at Idle
  124. What's involved to drop the oil pan?
  125. Iradium spark plugs for 99deville? Better or worse? What the best plug & wires??
  126. Tell me about Force Motors/pressure control solenoids
  127. 99 Head Gasket Warranty?
  128. How can u save gas on a 99 deville?
  129. PC0327 - 96DeVille
  130. 1995 STS Cooling problems?
  131. Sts engine has this knocking sound
  132. Heater Core Leak/ Need Some Help, Please
  133. GM MAF sensor information and Discussion
  134. bottom end problems??
  135. Car runs hot but doesn't over heat
  136. Fuel Line Leak
  137. I have a cracked block, what next?
  138. RTV Silicone on Transmission Side Cover?
  139. hypothetically speaking
  140. 02 STS uses tons of oil
  141. Northstar Modifications
  142. 10w40 in N*
  143. 94 STS starts only if pressing gas, idles rough, dies after a couple minutes
  144. upgrading 94 concours
  145. '98 STS valve cover
  146. HELP- Dropped a bolt in the intake valley
  147. Intake manifold crack?
  148. Need Some Code Help 02 Seville
  149. Crankshaft position sensor
  150. engine compatibility
  151. 1994 DeVille Concourse
  152. misfire at idle
  153. Need help removing 99 STS northstar motor
  154. 1st time motor pull for HG on 99 N*, some questions
  155. 97 Etc N* Head Gasket Project
  156. Headgasket Leaks & Repairs
  157. check coolant light on???
  158. High idle/ IAC clicking?
  159. HELP!! Fuel Rail Recall Problems 1996 Seville
  160. Engine stutter/punch
  161. P0741 TCC Stuck ON, tried much, what next
  162. What is the Northstar suppose to sound like?
  163. 2003 Sts 0-70
  164. IAC valve
  165. strange rumble sound during hard acceleration.
  166. 2002 STC - Front Engine Mount Broken
  167. Mobil 1 5W30 meets GM spec 4718M but Mobil 1 10W30 DOES NOT. WHAT GIVES?
  168. Unbolting "beauty cover" on a 1999 Deville What GIVES
  169. Where is my IAT Sensor located? 99 sts
  170. 1997 Seville SLS
  171. Arizona Cadillac Owners Cheap Northstar Engine
  172. questions about PC0300 code on 96 deville
  173. Help with this code...97 Cadillac deville
  174. Drive vs 3 What's better???
  175. Cam numbers?
  176. What Spark Plugs for a 1999 DeVille Northstar?
  177. Using synthetic oil in a Northstar-Why does Cadillac recommend 10W30?
  178. Engine Oil Myths including ZDP by GM
  179. anyone ever use HEAL-A-SEAL
  180. Does vacuum sound from Surge Tank equal head gaskets?
  181. 94 Northstar Flexplate knocking noice. HELP!!
  182. 2003 DHS - Sluggish - EGR?
  183. Whirring/grinding That's Speed Sensitive
  184. 2002 deville/dhs engine trouble
  185. How can I clean the Mass Air Flow??
  186. Thanks for nothing, Northstar.
  187. P0147 - Heated Oxygen Sensor (HO2S) Heater Performance Bank 1 Sensor 3 - overheating
  188. Crank sensor tech 95 sts
  189. 1st gear WOT
  190. The End
  191. 99 STS Turbo charged video
  192. valve seals
  193. 1999 Seville Ignition DTC Help!
  194. Smoking Northstar?
  195. How long is your NS dipstick?
  196. weep holes
  197. engine swap for a 2001 dts
  198. P0741 - TCC System Stuck Off
  199. new Delco spark plug wires installed
  200. 1998 Deville overheating
  201. Help Having A Heart Attack! P039 / TRanny?
  202. N* programmer?
  203. Is it possible?
  204. Northstar Buick
  205. N* Runs Rough at Cold Start
  206. Bank 1 , 2 ??????
  207. Engine build
  208. P0300,p - Engine Misfire Detected 2002 deville, help please
  209. 2003 Deville with RWD
  210. Starter location
  211. Questions, Questions, and more Questions
  212. 93 sts traction disabled
  213. rental lincoln
  214. how to stay away from power loss
  215. 96 sts supercharger
  216. Are headgasket issues getting more common lately?
  217. 1998 Seville STS Chiptuning
  218. Tranny problems?
  219. Northstar Dyno Registry
  220. New Engine...climate control issues.
  221. Cryogenics
  222. My Photo Essay N* Head Gasket Repair Job
  223. Custom intake and nitrous
  224. 94 concours
  225. SLS Y-Code Engine: Do I need to replace the EGR Valve? PCM?
  226. service manual
  227. Possible Applications for Northstar?
  228. Need help....PLZ!!
  229. so i got a few PCM codes
  230. GM's Veiw on Fuel and Oil Additives
  231. How do I Reset the Change Oil Message?
  232. so when i went to pull codes, it just said all
  233. T061 T083
  234. 97 Deville No Longer Starts
  235. help on my 99' seville sls
  236. Starting issue
  237. 97 SLS Motor Swap to an 03. Is it possible?
  238. head
  239. 99 SLS and Straight DexCool rather than 50/50
  240. No 1st Gear!!!
  241. Cheap Northstar in NH, 35,000 miles
  242. Steering Wheel puff of smoke
  243. on the tranny subject
  244. Talk about luck!!
  245. New motor runs a lil hotter?
  246. o2 sensor question
  247. What is HOT for a blown head gasket
  248. Need Help Info On Where To Buy Rebuilt Engine
  249. compatable parts
  250. NorthStar swap wiring harness