: Northstar Engines and System Technical Discussion



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