: Northstar Engines and System Technical Discussion



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