: Northstar Engines and System Technical Discussion



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  1. 2000 Deville with northstar
  2. 1034-loss of PCM data
  3. Obd I P046
  4. Computer/wiring problems
  5. Need help on 98 Seville/Northstar
  6. New HG Installed on a 99, Pings on Start Up?
  7. Got my 05 Deville back from Dealer!! and extra part for sale.
  8. Need help - going to see a 98 Seville STS on Sat, what do I check?
  9. Sick Tranny?
  10. Engine Help!!!
  11. 2nd annual midwest meet !
  12. 2001 Cadillac SLS LD8 Bore-increase
  13. White Smoke coming from front of car
  14. !996 Deville help troubleshoot
  15. I have a question about cold startswith N*??
  16. How do you disable the traction control perm without having to press the button in...
  17. 94 N* EGR valve ?? Engine stumbles.
  18. P0121, P0507 High Idle???
  19. 94 ETC no shift, wont idle
  20. Looking for '98 ETC mods
  21. What's your preference for plugs and wires ?
  22. intake manifold exploded/hole after backfire??
  23. 95 STS Cooling System Quirks
  24. MSD ignition
  25. Idea for vehicle to do Northstar swap on.
  26. NEED HELP - HAVE CODES P1416 and P0101
  27. quote???
  28. FPR replacement on 94 N*
  29. torker
  30. Sticking gas pedal????, high idle all of the sudden???? What do I check??? PLZ HELP!!
  31. Crankshaft & Cam sensors questions
  32. Why is my '96 Northstar now using oil?
  33. how to search forums..and cpk sensor question (2000 cadillac stalling)
  34. O2 Sensor Questions
  35. How can you tell if your HG's are shot?
  36. Rebuilt N*
  37. 97 STS vs. The drag strip
  38. 94 northstar starting problem
  39. Can i use synthetic oil in northstar?
  40. Getting Screwed
  41. Where is the main engine to body ground?
  42. white smoke n hp loss
  43. Is it me, or are alot of N*s having cracked blocks
  44. this is not an arguement thread for oil !
  45. 95 northstar tranny
  46. Is It Possible To???
  47. Engine stopped at the end of an exit ramp Any IDEAS WHY?
  48. Serpentine belt
  49. Need a VIN to a STS with the Z(W) option, I have the option but I don't like the Euro
  50. Removing EGR on a'96 SLS
  51. Whats the easy way to change the alternator on a Northstar? (99 Deville)
  52. Northstar shifting past redline
  53. 93/94 engines
  54. No Heat at Idle
  55. What's involved to drop the oil pan?
  56. Iradium spark plugs for 99deville? Better or worse? What the best plug & wires??
  57. Tell me about Force Motors/pressure control solenoids
  58. 99 Head Gasket Warranty?
  59. How can u save gas on a 99 deville?
  60. PC0327 - 96DeVille
  61. 1995 STS Cooling problems?
  62. Sts engine has this knocking sound
  63. Heater Core Leak/ Need Some Help, Please
  64. GM MAF sensor information and Discussion
  65. bottom end problems??
  66. Car runs hot but doesn't over heat
  67. Fuel Line Leak
  68. I have a cracked block, what next?
  69. RTV Silicone on Transmission Side Cover?
  70. hypothetically speaking
  71. 02 STS uses tons of oil
  72. Northstar Modifications
  73. 10w40 in N*
  74. 94 STS starts only if pressing gas, idles rough, dies after a couple minutes
  75. upgrading 94 concours
  76. '98 STS valve cover
  77. HELP- Dropped a bolt in the intake valley
  78. Intake manifold crack?
  79. Need Some Code Help 02 Seville
  80. Crankshaft position sensor
  81. engine compatibility
  82. 1994 DeVille Concourse
  83. misfire at idle
  84. Need help removing 99 STS northstar motor
  85. 1st time motor pull for HG on 99 N*, some questions
  86. 97 Etc N* Head Gasket Project
  87. Headgasket Leaks & Repairs
  88. check coolant light on???
  89. High idle/ IAC clicking?
  90. HELP!! Fuel Rail Recall Problems 1996 Seville
  91. Engine stutter/punch
  92. P0741 TCC Stuck ON, tried much, what next
  93. What is the Northstar suppose to sound like?
  94. 2003 Sts 0-70
  95. IAC valve
  96. strange rumble sound during hard acceleration.
  97. 2002 STC - Front Engine Mount Broken
  98. Mobil 1 5W30 meets GM spec 4718M but Mobil 1 10W30 DOES NOT. WHAT GIVES?
  99. Unbolting "beauty cover" on a 1999 Deville What GIVES
  100. Where is my IAT Sensor located? 99 sts
  101. 1997 Seville SLS
  102. Arizona Cadillac Owners Cheap Northstar Engine
  103. questions about PC0300 code on 96 deville
  104. Help with this code...97 Cadillac deville
  105. Drive vs 3 What's better???
  106. Cam numbers?
  107. What Spark Plugs for a 1999 DeVille Northstar?
  108. Using synthetic oil in a Northstar-Why does Cadillac recommend 10W30?
  109. Engine Oil Myths including ZDP by GM
  110. anyone ever use HEAL-A-SEAL
  111. Does vacuum sound from Surge Tank equal head gaskets?
  112. 94 Northstar Flexplate knocking noice. HELP!!
  113. 2003 DHS - Sluggish - EGR?
  114. Whirring/grinding That's Speed Sensitive
  115. 2002 deville/dhs engine trouble
  116. How can I clean the Mass Air Flow??
  117. Thanks for nothing, Northstar.
  118. P0147 - Heated Oxygen Sensor (HO2S) Heater Performance Bank 1 Sensor 3 - overheating
  119. Crank sensor tech 95 sts
  120. 1st gear WOT
  121. The End
  122. 99 STS Turbo charged video
  123. valve seals
  124. 1999 Seville Ignition DTC Help!
  125. Smoking Northstar?
  126. How long is your NS dipstick?
  127. weep holes
  128. engine swap for a 2001 dts
  129. P0741 - TCC System Stuck Off
  130. new Delco spark plug wires installed
  131. 1998 Deville overheating
  132. Help Having A Heart Attack! P039 / TRanny?
  133. N* programmer?
  134. Is it possible?
  135. Northstar Buick
  136. N* Runs Rough at Cold Start
  137. Bank 1 , 2 ??????
  138. Engine build
  139. P0300,p - Engine Misfire Detected 2002 deville, help please
  140. 2003 Deville with RWD
  141. Starter location
  142. Questions, Questions, and more Questions
  143. 93 sts traction disabled
  144. rental lincoln
  145. how to stay away from power loss
  146. 96 sts supercharger
  147. Are headgasket issues getting more common lately?
  148. 1998 Seville STS Chiptuning
  149. Tranny problems?
  150. Northstar Dyno Registry
  151. New Engine...climate control issues.
  152. Cryogenics
  153. My Photo Essay N* Head Gasket Repair Job
  154. Custom intake and nitrous
  155. 94 concours
  156. SLS Y-Code Engine: Do I need to replace the EGR Valve? PCM?
  157. service manual
  158. Possible Applications for Northstar?
  159. Need help....PLZ!!
  160. so i got a few PCM codes
  161. GM's Veiw on Fuel and Oil Additives
  162. How do I Reset the Change Oil Message?
  163. so when i went to pull codes, it just said all
  164. T061 T083
  165. 97 Deville No Longer Starts
  166. help on my 99' seville sls
  167. Starting issue
  168. 97 SLS Motor Swap to an 03. Is it possible?
  169. head
  170. 99 SLS and Straight DexCool rather than 50/50
  171. No 1st Gear!!!
  172. Cheap Northstar in NH, 35,000 miles
  173. Steering Wheel puff of smoke
  174. on the tranny subject
  175. Talk about luck!!
  176. New motor runs a lil hotter?
  177. o2 sensor question
  178. What is HOT for a blown head gasket
  179. Need Help Info On Where To Buy Rebuilt Engine
  180. compatable parts
  181. NorthStar swap wiring harness
  182. product question
  183. How long do you think caddy will keep the N*?
  184. SS Fuel Rail Removal
  185. Would this be a wise choice? [CAI] on a 184,000 mile northstar
  186. E85 on northstar ???
  187. just got my Plates
  188. 1996 Cadillac DeVille NO CODES ????
  189. Engine code - EOP
  190. Type of engine?
  191. Turbo Charged STS Cadillac
  192. Northstar Cam specs
  193. How can I drive 1000 miles with a coolant leak?
  194. To Rebuild or not.
  195. Do you use dealer for Northstar repairs?
  196. How long do Northstar engines last?
  197. 4.6 northstar fuel pressure?
  198. 150 miles in limp home mode
  199. CKP Question for One of the Techs
  200. Any problems trying 20W-50 in a '97?
  201. New 95' STS owner with tech question
  202. tune up ,whats involved?
  203. Oh shoot...need help ASAP...:(
  204. Radiator Cooling Fans not running
  205. Ram Air! (Maybe)
  206. Engine runs a bit rough during cold winter starts
  207. "break in" period for new Northstar engine
  208. How many miles to you get per tankfull with your north*?
  209. Inserts
  210. GM now offers Premium Remanufactured 4.6L Northstar
  211. 00 to 03 engine in a 98 or 99 Seville.
  212. recommended shop in Toronto/Kitchener area
  213. After head gasket repair engine knocks
  214. transaxel fluid change
  215. N* Injectors and Fuel Pressure Regulator
  216. transaxel filter
  217. 2002 plentum leak
  218. Sts Running Terrible
  219. 96 Cylinder head on 93 block
  220. My car has 121k on it..should I change the trany fluid?
  221. 96 to 99 Eldo, Deville, and 96, 97 Seville Tuning
  222. valve noise at startup
  223. Breaking in a N*
  224. Invisible leak (coolant)
  225. Another seafoam thread
  226. Is there an easy way to change coolant?
  227. what is considered normal coolant temperture for a north*?
  228. please identify mystery black box 01 DTS
  229. Northstar Headgasket/Cracked Block/Bolt Failure? Please let us know
  230. Flushing Radiator
  231. Are there any worthwhile performance mods for the 98 north*?
  232. Was there more then one north* engine in 1998?
  233. Three (3) Codes on 1996 SLS: P1406, P0401, P0108
  234. Northstar Air Consumption.
  235. Eldo Gone....
  236. 4T80-E Transmission Fluid Change - DONE!
  237. P119 - Shorted Fuel Injector Problem
  238. How often do you WOT your north*?
  239. Before i go to beat the crap outta my car - WOT cleaning
  240. denso wires ???
  241. timeserts -so do these things prevent bad head gaskets
  242. Northstar 32 valve good for swap-out?
  243. '94 sts.. ignition coils, ignition control module?
  244. Car will not turn over....
  245. Has anyone ever got the P0741 code?
  246. Are there any good oil additives to add...
  247. I read a post about top tier gasoline....
  248. '95 Concours hard starting when it's cold outside
  249. my service engine soon light is on
  250. bad idea to use 87 octane?