: Northstar Engines and System Technical Discussion



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  1. 94 northstar starting problem
  2. Can i use synthetic oil in northstar?
  3. Getting Screwed
  4. Where is the main engine to body ground?
  5. white smoke n hp loss
  6. Is it me, or are alot of N*s having cracked blocks
  7. this is not an arguement thread for oil !
  8. 95 northstar tranny
  9. Is It Possible To???
  10. Engine stopped at the end of an exit ramp Any IDEAS WHY?
  11. Serpentine belt
  12. Need a VIN to a STS with the Z(W) option, I have the option but I don't like the Euro
  13. Removing EGR on a'96 SLS
  14. Whats the easy way to change the alternator on a Northstar? (99 Deville)
  15. Northstar shifting past redline
  16. 93/94 engines
  17. No Heat at Idle
  18. What's involved to drop the oil pan?
  19. Iradium spark plugs for 99deville? Better or worse? What the best plug & wires??
  20. Tell me about Force Motors/pressure control solenoids
  21. 99 Head Gasket Warranty?
  22. How can u save gas on a 99 deville?
  23. PC0327 - 96DeVille
  24. 1995 STS Cooling problems?
  25. Sts engine has this knocking sound
  26. Heater Core Leak/ Need Some Help, Please
  27. GM MAF sensor information and Discussion
  28. bottom end problems??
  29. Car runs hot but doesn't over heat
  30. Fuel Line Leak
  31. I have a cracked block, what next?
  32. RTV Silicone on Transmission Side Cover?
  33. hypothetically speaking
  34. 02 STS uses tons of oil
  35. Northstar Modifications
  36. 10w40 in N*
  37. 94 STS starts only if pressing gas, idles rough, dies after a couple minutes
  38. upgrading 94 concours
  39. '98 STS valve cover
  40. HELP- Dropped a bolt in the intake valley
  41. Intake manifold crack?
  42. Need Some Code Help 02 Seville
  43. Crankshaft position sensor
  44. engine compatibility
  45. 1994 DeVille Concourse
  46. misfire at idle
  47. Need help removing 99 STS northstar motor
  48. 1st time motor pull for HG on 99 N*, some questions
  49. 97 Etc N* Head Gasket Project
  50. Headgasket Leaks & Repairs
  51. check coolant light on???
  52. High idle/ IAC clicking?
  53. HELP!! Fuel Rail Recall Problems 1996 Seville
  54. Engine stutter/punch
  55. P0741 TCC Stuck ON, tried much, what next
  56. What is the Northstar suppose to sound like?
  57. 2003 Sts 0-70
  58. IAC valve
  59. strange rumble sound during hard acceleration.
  60. 2002 STC - Front Engine Mount Broken
  61. Mobil 1 5W30 meets GM spec 4718M but Mobil 1 10W30 DOES NOT. WHAT GIVES?
  62. Unbolting "beauty cover" on a 1999 Deville What GIVES
  63. Where is my IAT Sensor located? 99 sts
  64. 1997 Seville SLS
  65. Arizona Cadillac Owners Cheap Northstar Engine
  66. questions about PC0300 code on 96 deville
  67. Help with this code...97 Cadillac deville
  68. Drive vs 3 What's better???
  69. Cam numbers?
  70. What Spark Plugs for a 1999 DeVille Northstar?
  71. Using synthetic oil in a Northstar-Why does Cadillac recommend 10W30?
  72. Engine Oil Myths including ZDP by GM
  73. anyone ever use HEAL-A-SEAL
  74. Does vacuum sound from Surge Tank equal head gaskets?
  75. 94 Northstar Flexplate knocking noice. HELP!!
  76. 2003 DHS - Sluggish - EGR?
  77. Whirring/grinding That's Speed Sensitive
  78. 2002 deville/dhs engine trouble
  79. How can I clean the Mass Air Flow??
  80. Thanks for nothing, Northstar.
  81. P0147 - Heated Oxygen Sensor (HO2S) Heater Performance Bank 1 Sensor 3 - overheating
  82. Crank sensor tech 95 sts
  83. 1st gear WOT
  84. The End
  85. 99 STS Turbo charged video
  86. valve seals
  87. 1999 Seville Ignition DTC Help!
  88. Smoking Northstar?
  89. How long is your NS dipstick?
  90. weep holes
  91. engine swap for a 2001 dts
  92. P0741 - TCC System Stuck Off
  93. new Delco spark plug wires installed
  94. 1998 Deville overheating
  95. Help Having A Heart Attack! P039 / TRanny?
  96. N* programmer?
  97. Is it possible?
  98. Northstar Buick
  99. N* Runs Rough at Cold Start
  100. Bank 1 , 2 ??????
  101. Engine build
  102. P0300,p - Engine Misfire Detected 2002 deville, help please
  103. 2003 Deville with RWD
  104. Starter location
  105. Questions, Questions, and more Questions
  106. 93 sts traction disabled
  107. rental lincoln
  108. how to stay away from power loss
  109. 96 sts supercharger
  110. Are headgasket issues getting more common lately?
  111. 1998 Seville STS Chiptuning
  112. Tranny problems?
  113. Northstar Dyno Registry
  114. New Engine...climate control issues.
  115. Cryogenics
  116. My Photo Essay N* Head Gasket Repair Job
  117. Custom intake and nitrous
  118. 94 concours
  119. SLS Y-Code Engine: Do I need to replace the EGR Valve? PCM?
  120. service manual
  121. Possible Applications for Northstar?
  122. Need help....PLZ!!
  123. so i got a few PCM codes
  124. GM's Veiw on Fuel and Oil Additives
  125. How do I Reset the Change Oil Message?
  126. so when i went to pull codes, it just said all
  127. T061 T083
  128. 97 Deville No Longer Starts
  129. help on my 99' seville sls
  130. Starting issue
  131. 97 SLS Motor Swap to an 03. Is it possible?
  132. head
  133. 99 SLS and Straight DexCool rather than 50/50
  134. No 1st Gear!!!
  135. Cheap Northstar in NH, 35,000 miles
  136. Steering Wheel puff of smoke
  137. on the tranny subject
  138. Talk about luck!!
  139. New motor runs a lil hotter?
  140. o2 sensor question
  141. What is HOT for a blown head gasket
  142. Need Help Info On Where To Buy Rebuilt Engine
  143. compatable parts
  144. NorthStar swap wiring harness
  145. product question
  146. How long do you think caddy will keep the N*?
  147. SS Fuel Rail Removal
  148. Would this be a wise choice? [CAI] on a 184,000 mile northstar
  149. E85 on northstar ???
  150. just got my Plates
  151. 1996 Cadillac DeVille NO CODES ????
  152. Engine code - EOP
  153. Type of engine?
  154. Turbo Charged STS Cadillac
  155. Northstar Cam specs
  156. How can I drive 1000 miles with a coolant leak?
  157. To Rebuild or not.
  158. Do you use dealer for Northstar repairs?
  159. How long do Northstar engines last?
  160. 4.6 northstar fuel pressure?
  161. 150 miles in limp home mode
  162. CKP Question for One of the Techs
  163. Any problems trying 20W-50 in a '97?
  164. New 95' STS owner with tech question
  165. tune up ,whats involved?
  166. Oh shoot...need help ASAP...:(
  167. Radiator Cooling Fans not running
  168. Ram Air! (Maybe)
  169. Engine runs a bit rough during cold winter starts
  170. "break in" period for new Northstar engine
  171. How many miles to you get per tankfull with your north*?
  172. Inserts
  173. GM now offers Premium Remanufactured 4.6L Northstar
  174. 00 to 03 engine in a 98 or 99 Seville.
  175. recommended shop in Toronto/Kitchener area
  176. After head gasket repair engine knocks
  177. transaxel fluid change
  178. N* Injectors and Fuel Pressure Regulator
  179. transaxel filter
  180. 2002 plentum leak
  181. Sts Running Terrible
  182. 96 Cylinder head on 93 block
  183. My car has 121k on it..should I change the trany fluid?
  184. 96 to 99 Eldo, Deville, and 96, 97 Seville Tuning
  185. valve noise at startup
  186. Breaking in a N*
  187. Invisible leak (coolant)
  188. Another seafoam thread
  189. Is there an easy way to change coolant?
  190. what is considered normal coolant temperture for a north*?
  191. please identify mystery black box 01 DTS
  192. Northstar Headgasket/Cracked Block/Bolt Failure? Please let us know
  193. Flushing Radiator
  194. Are there any worthwhile performance mods for the 98 north*?
  195. Was there more then one north* engine in 1998?
  196. Three (3) Codes on 1996 SLS: P1406, P0401, P0108
  197. Northstar Air Consumption.
  198. Eldo Gone....
  199. 4T80-E Transmission Fluid Change - DONE!
  200. P119 - Shorted Fuel Injector Problem
  201. How often do you WOT your north*?
  202. Before i go to beat the crap outta my car - WOT cleaning
  203. denso wires ???
  204. timeserts -so do these things prevent bad head gaskets
  205. Northstar 32 valve good for swap-out?
  206. '94 sts.. ignition coils, ignition control module?
  207. Car will not turn over....
  208. Has anyone ever got the P0741 code?
  209. Are there any good oil additives to add...
  210. I read a post about top tier gasoline....
  211. '95 Concours hard starting when it's cold outside
  212. my service engine soon light is on
  213. bad idea to use 87 octane?
  214. royal purple on a N*
  215. 03 n* and trans in a 99 SLS
  216. What gives the Northstar its "whirring" sound at idle?
  217. 96 sts starter problems, questions?
  218. How would i get a custom pcm?
  219. Beef up a 4.6L NStar?
  220. squeeky serpatine belt *new belt and tensioner*
  221. N* performance
  222. what year was it?
  223. opinions on high flow cats
  224. Gasoline Consumption question
  225. Looking for a Timesert Kit
  226. Engine Performance mods 95 STS
  227. Which oil i need for my 96 eldorado????
  228. How long should I let the N* warm up in the morning?
  229. Timesert Kits?
  230. 1997 SLS (overheating)
  231. Changing brakes on 96 SLS
  232. 2000 dts northstar reliabilty
  233. 2002 ETC Collector-mobile.
  234. What's the difference between the STS and SLS engines?
  235. Internal Mods For Northstar
  236. 99 to 00+ swap differences
  237. stuttering at idle
  238. 1999 Cadillac STS love/hate relationship...
  239. Free Northstar Engine
  240. Help the new guy make a good decision
  241. High Performance Head Gaskets?
  242. Parts ID
  243. Not run for 6 years, what would you do?
  244. 00 PCM on a 99 engine
  245. Blown Headgasket
  246. Aluminum Block porisity
  247. Its Alive
  248. oil life monitor problem
  249. P094 limp mode, no overdrive
  250. Valve Stem Seal Puller