: Northstar Engines and System Technical Discussion



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  1. What's your preference for plugs and wires ?
  2. intake manifold exploded/hole after backfire??
  3. 95 STS Cooling System Quirks
  4. MSD ignition
  5. Idea for vehicle to do Northstar swap on.
  6. NEED HELP - HAVE CODES P1416 and P0101
  7. quote???
  8. FPR replacement on 94 N*
  9. torker
  10. Sticking gas pedal????, high idle all of the sudden???? What do I check??? PLZ HELP!!
  11. Crankshaft & Cam sensors questions
  12. Why is my '96 Northstar now using oil?
  13. how to search forums..and cpk sensor question (2000 cadillac stalling)
  14. O2 Sensor Questions
  15. How can you tell if your HG's are shot?
  16. Rebuilt N*
  17. 97 STS vs. The drag strip
  18. 94 northstar starting problem
  19. Can i use synthetic oil in northstar?
  20. Getting Screwed
  21. Where is the main engine to body ground?
  22. white smoke n hp loss
  23. Is it me, or are alot of N*s having cracked blocks
  24. this is not an arguement thread for oil !
  25. 95 northstar tranny
  26. Is It Possible To???
  27. Engine stopped at the end of an exit ramp Any IDEAS WHY?
  28. Serpentine belt
  29. Need a VIN to a STS with the Z(W) option, I have the option but I don't like the Euro
  30. Removing EGR on a'96 SLS
  31. Whats the easy way to change the alternator on a Northstar? (99 Deville)
  32. Northstar shifting past redline
  33. 93/94 engines
  34. No Heat at Idle
  35. What's involved to drop the oil pan?
  36. Iradium spark plugs for 99deville? Better or worse? What the best plug & wires??
  37. Tell me about Force Motors/pressure control solenoids
  38. 99 Head Gasket Warranty?
  39. How can u save gas on a 99 deville?
  40. PC0327 - 96DeVille
  41. 1995 STS Cooling problems?
  42. Sts engine has this knocking sound
  43. Heater Core Leak/ Need Some Help, Please
  44. GM MAF sensor information and Discussion
  45. bottom end problems??
  46. Car runs hot but doesn't over heat
  47. Fuel Line Leak
  48. I have a cracked block, what next?
  49. RTV Silicone on Transmission Side Cover?
  50. hypothetically speaking
  51. 02 STS uses tons of oil
  52. Northstar Modifications
  53. 10w40 in N*
  54. 94 STS starts only if pressing gas, idles rough, dies after a couple minutes
  55. upgrading 94 concours
  56. '98 STS valve cover
  57. HELP- Dropped a bolt in the intake valley
  58. Intake manifold crack?
  59. Need Some Code Help 02 Seville
  60. Crankshaft position sensor
  61. engine compatibility
  62. 1994 DeVille Concourse
  63. misfire at idle
  64. Need help removing 99 STS northstar motor
  65. 1st time motor pull for HG on 99 N*, some questions
  66. 97 Etc N* Head Gasket Project
  67. Headgasket Leaks & Repairs
  68. check coolant light on???
  69. High idle/ IAC clicking?
  70. HELP!! Fuel Rail Recall Problems 1996 Seville
  71. Engine stutter/punch
  72. P0741 TCC Stuck ON, tried much, what next
  73. What is the Northstar suppose to sound like?
  74. 2003 Sts 0-70
  75. IAC valve
  76. strange rumble sound during hard acceleration.
  77. 2002 STC - Front Engine Mount Broken
  78. Mobil 1 5W30 meets GM spec 4718M but Mobil 1 10W30 DOES NOT. WHAT GIVES?
  79. Unbolting "beauty cover" on a 1999 Deville What GIVES
  80. Where is my IAT Sensor located? 99 sts
  81. 1997 Seville SLS
  82. Arizona Cadillac Owners Cheap Northstar Engine
  83. questions about PC0300 code on 96 deville
  84. Help with this code...97 Cadillac deville
  85. Drive vs 3 What's better???
  86. Cam numbers?
  87. What Spark Plugs for a 1999 DeVille Northstar?
  88. Using synthetic oil in a Northstar-Why does Cadillac recommend 10W30?
  89. Engine Oil Myths including ZDP by GM
  90. anyone ever use HEAL-A-SEAL
  91. Does vacuum sound from Surge Tank equal head gaskets?
  92. 94 Northstar Flexplate knocking noice. HELP!!
  93. 2003 DHS - Sluggish - EGR?
  94. Whirring/grinding That's Speed Sensitive
  95. 2002 deville/dhs engine trouble
  96. How can I clean the Mass Air Flow??
  97. Thanks for nothing, Northstar.
  98. P0147 - Heated Oxygen Sensor (HO2S) Heater Performance Bank 1 Sensor 3 - overheating
  99. Crank sensor tech 95 sts
  100. 1st gear WOT
  101. The End
  102. 99 STS Turbo charged video
  103. valve seals
  104. 1999 Seville Ignition DTC Help!
  105. Smoking Northstar?
  106. How long is your NS dipstick?
  107. weep holes
  108. engine swap for a 2001 dts
  109. P0741 - TCC System Stuck Off
  110. new Delco spark plug wires installed
  111. 1998 Deville overheating
  112. Help Having A Heart Attack! P039 / TRanny?
  113. N* programmer?
  114. Is it possible?
  115. Northstar Buick
  116. N* Runs Rough at Cold Start
  117. Bank 1 , 2 ??????
  118. Engine build
  119. P0300,p - Engine Misfire Detected 2002 deville, help please
  120. 2003 Deville with RWD
  121. Starter location
  122. Questions, Questions, and more Questions
  123. 93 sts traction disabled
  124. rental lincoln
  125. how to stay away from power loss
  126. 96 sts supercharger
  127. Are headgasket issues getting more common lately?
  128. 1998 Seville STS Chiptuning
  129. Tranny problems?
  130. Northstar Dyno Registry
  131. New Engine...climate control issues.
  132. Cryogenics
  133. My Photo Essay N* Head Gasket Repair Job
  134. Custom intake and nitrous
  135. 94 concours
  136. SLS Y-Code Engine: Do I need to replace the EGR Valve? PCM?
  137. service manual
  138. Possible Applications for Northstar?
  139. Need help....PLZ!!
  140. so i got a few PCM codes
  141. GM's Veiw on Fuel and Oil Additives
  142. How do I Reset the Change Oil Message?
  143. so when i went to pull codes, it just said all
  144. T061 T083
  145. 97 Deville No Longer Starts
  146. help on my 99' seville sls
  147. Starting issue
  148. 97 SLS Motor Swap to an 03. Is it possible?
  149. head
  150. 99 SLS and Straight DexCool rather than 50/50
  151. No 1st Gear!!!
  152. Cheap Northstar in NH, 35,000 miles
  153. Steering Wheel puff of smoke
  154. on the tranny subject
  155. Talk about luck!!
  156. New motor runs a lil hotter?
  157. o2 sensor question
  158. What is HOT for a blown head gasket
  159. Need Help Info On Where To Buy Rebuilt Engine
  160. compatable parts
  161. NorthStar swap wiring harness
  162. product question
  163. How long do you think caddy will keep the N*?
  164. SS Fuel Rail Removal
  165. Would this be a wise choice? [CAI] on a 184,000 mile northstar
  166. E85 on northstar ???
  167. just got my Plates
  168. 1996 Cadillac DeVille NO CODES ????
  169. Engine code - EOP
  170. Type of engine?
  171. Turbo Charged STS Cadillac
  172. Northstar Cam specs
  173. How can I drive 1000 miles with a coolant leak?
  174. To Rebuild or not.
  175. Do you use dealer for Northstar repairs?
  176. How long do Northstar engines last?
  177. 4.6 northstar fuel pressure?
  178. 150 miles in limp home mode
  179. CKP Question for One of the Techs
  180. Any problems trying 20W-50 in a '97?
  181. New 95' STS owner with tech question
  182. tune up ,whats involved?
  183. Oh shoot...need help ASAP...:(
  184. Radiator Cooling Fans not running
  185. Ram Air! (Maybe)
  186. Engine runs a bit rough during cold winter starts
  187. "break in" period for new Northstar engine
  188. How many miles to you get per tankfull with your north*?
  189. Inserts
  190. GM now offers Premium Remanufactured 4.6L Northstar
  191. 00 to 03 engine in a 98 or 99 Seville.
  192. recommended shop in Toronto/Kitchener area
  193. After head gasket repair engine knocks
  194. transaxel fluid change
  195. N* Injectors and Fuel Pressure Regulator
  196. transaxel filter
  197. 2002 plentum leak
  198. Sts Running Terrible
  199. 96 Cylinder head on 93 block
  200. My car has 121k on it..should I change the trany fluid?
  201. 96 to 99 Eldo, Deville, and 96, 97 Seville Tuning
  202. valve noise at startup
  203. Breaking in a N*
  204. Invisible leak (coolant)
  205. Another seafoam thread
  206. Is there an easy way to change coolant?
  207. what is considered normal coolant temperture for a north*?
  208. please identify mystery black box 01 DTS
  209. Northstar Headgasket/Cracked Block/Bolt Failure? Please let us know
  210. Flushing Radiator
  211. Are there any worthwhile performance mods for the 98 north*?
  212. Was there more then one north* engine in 1998?
  213. Three (3) Codes on 1996 SLS: P1406, P0401, P0108
  214. Northstar Air Consumption.
  215. Eldo Gone....
  216. 4T80-E Transmission Fluid Change - DONE!
  217. P119 - Shorted Fuel Injector Problem
  218. How often do you WOT your north*?
  219. Before i go to beat the crap outta my car - WOT cleaning
  220. denso wires ???
  221. timeserts -so do these things prevent bad head gaskets
  222. Northstar 32 valve good for swap-out?
  223. '94 sts.. ignition coils, ignition control module?
  224. Car will not turn over....
  225. Has anyone ever got the P0741 code?
  226. Are there any good oil additives to add...
  227. I read a post about top tier gasoline....
  228. '95 Concours hard starting when it's cold outside
  229. my service engine soon light is on
  230. bad idea to use 87 octane?
  231. royal purple on a N*
  232. 03 n* and trans in a 99 SLS
  233. What gives the Northstar its "whirring" sound at idle?
  234. 96 sts starter problems, questions?
  235. How would i get a custom pcm?
  236. Beef up a 4.6L NStar?
  237. squeeky serpatine belt *new belt and tensioner*
  238. N* performance
  239. what year was it?
  240. opinions on high flow cats
  241. Gasoline Consumption question
  242. Looking for a Timesert Kit
  243. Engine Performance mods 95 STS
  244. Which oil i need for my 96 eldorado????
  245. How long should I let the N* warm up in the morning?
  246. Timesert Kits?
  247. 1997 SLS (overheating)
  248. Changing brakes on 96 SLS
  249. 2000 dts northstar reliabilty
  250. 2002 ETC Collector-mobile.