: Northstar Engines and System Technical Discussion



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  1. Crankshaft & Cam sensors questions
  2. Why is my '96 Northstar now using oil?
  3. how to search forums..and cpk sensor question (2000 cadillac stalling)
  4. O2 Sensor Questions
  5. How can you tell if your HG's are shot?
  6. Rebuilt N*
  7. 97 STS vs. The drag strip
  8. 94 northstar starting problem
  9. Can i use synthetic oil in northstar?
  10. Getting Screwed
  11. Where is the main engine to body ground?
  12. white smoke n hp loss
  13. Is it me, or are alot of N*s having cracked blocks
  14. this is not an arguement thread for oil !
  15. 95 northstar tranny
  16. Is It Possible To???
  17. Engine stopped at the end of an exit ramp Any IDEAS WHY?
  18. Serpentine belt
  19. Need a VIN to a STS with the Z(W) option, I have the option but I don't like the Euro
  20. Removing EGR on a'96 SLS
  21. Whats the easy way to change the alternator on a Northstar? (99 Deville)
  22. Northstar shifting past redline
  23. 93/94 engines
  24. No Heat at Idle
  25. What's involved to drop the oil pan?
  26. Iradium spark plugs for 99deville? Better or worse? What the best plug & wires??
  27. Tell me about Force Motors/pressure control solenoids
  28. 99 Head Gasket Warranty?
  29. How can u save gas on a 99 deville?
  30. PC0327 - 96DeVille
  31. 1995 STS Cooling problems?
  32. Sts engine has this knocking sound
  33. Heater Core Leak/ Need Some Help, Please
  34. GM MAF sensor information and Discussion
  35. bottom end problems??
  36. Car runs hot but doesn't over heat
  37. Fuel Line Leak
  38. I have a cracked block, what next?
  39. RTV Silicone on Transmission Side Cover?
  40. hypothetically speaking
  41. 02 STS uses tons of oil
  42. Northstar Modifications
  43. 10w40 in N*
  44. 94 STS starts only if pressing gas, idles rough, dies after a couple minutes
  45. upgrading 94 concours
  46. '98 STS valve cover
  47. HELP- Dropped a bolt in the intake valley
  48. Intake manifold crack?
  49. Need Some Code Help 02 Seville
  50. Crankshaft position sensor
  51. engine compatibility
  52. 1994 DeVille Concourse
  53. misfire at idle
  54. Need help removing 99 STS northstar motor
  55. 1st time motor pull for HG on 99 N*, some questions
  56. 97 Etc N* Head Gasket Project
  57. Headgasket Leaks & Repairs
  58. check coolant light on???
  59. High idle/ IAC clicking?
  60. HELP!! Fuel Rail Recall Problems 1996 Seville
  61. Engine stutter/punch
  62. P0741 TCC Stuck ON, tried much, what next
  63. What is the Northstar suppose to sound like?
  64. 2003 Sts 0-70
  65. IAC valve
  66. strange rumble sound during hard acceleration.
  67. 2002 STC - Front Engine Mount Broken
  68. Mobil 1 5W30 meets GM spec 4718M but Mobil 1 10W30 DOES NOT. WHAT GIVES?
  69. Unbolting "beauty cover" on a 1999 Deville What GIVES
  70. Where is my IAT Sensor located? 99 sts
  71. 1997 Seville SLS
  72. Arizona Cadillac Owners Cheap Northstar Engine
  73. questions about PC0300 code on 96 deville
  74. Help with this code...97 Cadillac deville
  75. Drive vs 3 What's better???
  76. Cam numbers?
  77. What Spark Plugs for a 1999 DeVille Northstar?
  78. Using synthetic oil in a Northstar-Why does Cadillac recommend 10W30?
  79. Engine Oil Myths including ZDP by GM
  80. anyone ever use HEAL-A-SEAL
  81. Does vacuum sound from Surge Tank equal head gaskets?
  82. 94 Northstar Flexplate knocking noice. HELP!!
  83. 2003 DHS - Sluggish - EGR?
  84. Whirring/grinding That's Speed Sensitive
  85. 2002 deville/dhs engine trouble
  86. How can I clean the Mass Air Flow??
  87. Thanks for nothing, Northstar.
  88. P0147 - Heated Oxygen Sensor (HO2S) Heater Performance Bank 1 Sensor 3 - overheating
  89. Crank sensor tech 95 sts
  90. 1st gear WOT
  91. The End
  92. 99 STS Turbo charged video
  93. valve seals
  94. 1999 Seville Ignition DTC Help!
  95. Smoking Northstar?
  96. How long is your NS dipstick?
  97. weep holes
  98. engine swap for a 2001 dts
  99. P0741 - TCC System Stuck Off
  100. new Delco spark plug wires installed
  101. 1998 Deville overheating
  102. Help Having A Heart Attack! P039 / TRanny?
  103. N* programmer?
  104. Is it possible?
  105. Northstar Buick
  106. N* Runs Rough at Cold Start
  107. Bank 1 , 2 ??????
  108. Engine build
  109. P0300,p - Engine Misfire Detected 2002 deville, help please
  110. 2003 Deville with RWD
  111. Starter location
  112. Questions, Questions, and more Questions
  113. 93 sts traction disabled
  114. rental lincoln
  115. how to stay away from power loss
  116. 96 sts supercharger
  117. Are headgasket issues getting more common lately?
  118. 1998 Seville STS Chiptuning
  119. Tranny problems?
  120. Northstar Dyno Registry
  121. New Engine...climate control issues.
  122. Cryogenics
  123. My Photo Essay N* Head Gasket Repair Job
  124. Custom intake and nitrous
  125. 94 concours
  126. SLS Y-Code Engine: Do I need to replace the EGR Valve? PCM?
  127. service manual
  128. Possible Applications for Northstar?
  129. Need help....PLZ!!
  130. so i got a few PCM codes
  131. GM's Veiw on Fuel and Oil Additives
  132. How do I Reset the Change Oil Message?
  133. so when i went to pull codes, it just said all
  134. T061 T083
  135. 97 Deville No Longer Starts
  136. help on my 99' seville sls
  137. Starting issue
  138. 97 SLS Motor Swap to an 03. Is it possible?
  139. head
  140. 99 SLS and Straight DexCool rather than 50/50
  141. No 1st Gear!!!
  142. Cheap Northstar in NH, 35,000 miles
  143. Steering Wheel puff of smoke
  144. on the tranny subject
  145. Talk about luck!!
  146. New motor runs a lil hotter?
  147. o2 sensor question
  148. What is HOT for a blown head gasket
  149. Need Help Info On Where To Buy Rebuilt Engine
  150. compatable parts
  151. NorthStar swap wiring harness
  152. product question
  153. How long do you think caddy will keep the N*?
  154. SS Fuel Rail Removal
  155. Would this be a wise choice? [CAI] on a 184,000 mile northstar
  156. E85 on northstar ???
  157. just got my Plates
  158. 1996 Cadillac DeVille NO CODES ????
  159. Engine code - EOP
  160. Type of engine?
  161. Turbo Charged STS Cadillac
  162. Northstar Cam specs
  163. How can I drive 1000 miles with a coolant leak?
  164. To Rebuild or not.
  165. Do you use dealer for Northstar repairs?
  166. How long do Northstar engines last?
  167. 4.6 northstar fuel pressure?
  168. 150 miles in limp home mode
  169. CKP Question for One of the Techs
  170. Any problems trying 20W-50 in a '97?
  171. New 95' STS owner with tech question
  172. tune up ,whats involved?
  173. Oh shoot...need help ASAP...:(
  174. Radiator Cooling Fans not running
  175. Ram Air! (Maybe)
  176. Engine runs a bit rough during cold winter starts
  177. "break in" period for new Northstar engine
  178. How many miles to you get per tankfull with your north*?
  179. Inserts
  180. GM now offers Premium Remanufactured 4.6L Northstar
  181. 00 to 03 engine in a 98 or 99 Seville.
  182. recommended shop in Toronto/Kitchener area
  183. After head gasket repair engine knocks
  184. transaxel fluid change
  185. N* Injectors and Fuel Pressure Regulator
  186. transaxel filter
  187. 2002 plentum leak
  188. Sts Running Terrible
  189. 96 Cylinder head on 93 block
  190. My car has 121k on it..should I change the trany fluid?
  191. 96 to 99 Eldo, Deville, and 96, 97 Seville Tuning
  192. valve noise at startup
  193. Breaking in a N*
  194. Invisible leak (coolant)
  195. Another seafoam thread
  196. Is there an easy way to change coolant?
  197. what is considered normal coolant temperture for a north*?
  198. please identify mystery black box 01 DTS
  199. Northstar Headgasket/Cracked Block/Bolt Failure? Please let us know
  200. Flushing Radiator
  201. Are there any worthwhile performance mods for the 98 north*?
  202. Was there more then one north* engine in 1998?
  203. Three (3) Codes on 1996 SLS: P1406, P0401, P0108
  204. Northstar Air Consumption.
  205. Eldo Gone....
  206. 4T80-E Transmission Fluid Change - DONE!
  207. P119 - Shorted Fuel Injector Problem
  208. How often do you WOT your north*?
  209. Before i go to beat the crap outta my car - WOT cleaning
  210. denso wires ???
  211. timeserts -so do these things prevent bad head gaskets
  212. Northstar 32 valve good for swap-out?
  213. '94 sts.. ignition coils, ignition control module?
  214. Car will not turn over....
  215. Has anyone ever got the P0741 code?
  216. Are there any good oil additives to add...
  217. I read a post about top tier gasoline....
  218. '95 Concours hard starting when it's cold outside
  219. my service engine soon light is on
  220. bad idea to use 87 octane?
  221. royal purple on a N*
  222. 03 n* and trans in a 99 SLS
  223. What gives the Northstar its "whirring" sound at idle?
  224. 96 sts starter problems, questions?
  225. How would i get a custom pcm?
  226. Beef up a 4.6L NStar?
  227. squeeky serpatine belt *new belt and tensioner*
  228. N* performance
  229. what year was it?
  230. opinions on high flow cats
  231. Gasoline Consumption question
  232. Looking for a Timesert Kit
  233. Engine Performance mods 95 STS
  234. Which oil i need for my 96 eldorado????
  235. How long should I let the N* warm up in the morning?
  236. Timesert Kits?
  237. 1997 SLS (overheating)
  238. Changing brakes on 96 SLS
  239. 2000 dts northstar reliabilty
  240. 2002 ETC Collector-mobile.
  241. What's the difference between the STS and SLS engines?
  242. Internal Mods For Northstar
  243. 99 to 00+ swap differences
  244. stuttering at idle
  245. 1999 Cadillac STS love/hate relationship...
  246. Free Northstar Engine
  247. Help the new guy make a good decision
  248. High Performance Head Gaskets?
  249. Parts ID
  250. Not run for 6 years, what would you do?