: Northstar Engines and System Technical Discussion



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  1. help please
  2. Why didn't Cadillac make a larger displacement Northstar?
  3. Check Gas Cap Message.
  4. Changing the cams on an STS to the SLS Cams
  5. why wont my fans work?
  6. 99 STS, almost working
  7. Loud Engine Whine
  8. Over-sized Northstar Pistons
  9. overheating problem
  10. seville with shifting problems 1rst > 2nd
  11. msd coil?
  12. very hard start in the cold on N*
  13. L37 or LD8 ????
  14. Need a reliable source for Northstar Torque specs
  15. Northstar Rod Spec's & 3.6L
  16. symptoms of bolt failure/lifted heads
  17. 99 Deville Northstar Overheating -wanting non contradicting answers
  18. 2000 DeVille Overheating Update
  19. Bad Alternator?
  20. 1996 Deville Troubleshoot update
  21. Fuel pressure regulator?
  22. IAC Counts
  23. Thermagasket Does It Work???
  24. Missed one connection
  25. Those Damn HEAD GASKETS
  26. LC3 FWD Swap?
  27. ? For Ewill or AJ
  28. looking for pictures of northstar valvetrain
  29. So, here are the symptoms, whats wrong
  30. Northstar Valvetrain Clatter
  31. 200 DeVille Blows hot air at low speed turns cold
  32. Could it be the Water Pump Knocking
  33. Can anyone tell me whats wrong?
  34. Front Valvetrain Clacking
  35. labor cost to replace o2 sensor????
  36. Difference between VIN Y and VIN 9
  37. Got Code P1415 Please Help
  38. 2000 Deville with northstar
  39. 1034-loss of PCM data
  40. Obd I P046
  41. Computer/wiring problems
  42. Need help on 98 Seville/Northstar
  43. New HG Installed on a 99, Pings on Start Up?
  44. Got my 05 Deville back from Dealer!! and extra part for sale.
  45. Need help - going to see a 98 Seville STS on Sat, what do I check?
  46. Sick Tranny?
  47. Engine Help!!!
  48. 2nd annual midwest meet !
  49. 2001 Cadillac SLS LD8 Bore-increase
  50. White Smoke coming from front of car
  51. !996 Deville help troubleshoot
  52. I have a question about cold startswith N*??
  53. How do you disable the traction control perm without having to press the button in...
  54. 94 N* EGR valve ?? Engine stumbles.
  55. P0121, P0507 High Idle???
  56. 94 ETC no shift, wont idle
  57. Looking for '98 ETC mods
  58. What's your preference for plugs and wires ?
  59. intake manifold exploded/hole after backfire??
  60. 95 STS Cooling System Quirks
  61. MSD ignition
  62. Idea for vehicle to do Northstar swap on.
  63. NEED HELP - HAVE CODES P1416 and P0101
  64. quote???
  65. FPR replacement on 94 N*
  66. torker
  67. Sticking gas pedal????, high idle all of the sudden???? What do I check??? PLZ HELP!!
  68. Crankshaft & Cam sensors questions
  69. Why is my '96 Northstar now using oil?
  70. how to search forums..and cpk sensor question (2000 cadillac stalling)
  71. O2 Sensor Questions
  72. How can you tell if your HG's are shot?
  73. Rebuilt N*
  74. 97 STS vs. The drag strip
  75. 94 northstar starting problem
  76. Can i use synthetic oil in northstar?
  77. Getting Screwed
  78. Where is the main engine to body ground?
  79. white smoke n hp loss
  80. Is it me, or are alot of N*s having cracked blocks
  81. this is not an arguement thread for oil !
  82. 95 northstar tranny
  83. Is It Possible To???
  84. Engine stopped at the end of an exit ramp Any IDEAS WHY?
  85. Serpentine belt
  86. Need a VIN to a STS with the Z(W) option, I have the option but I don't like the Euro
  87. Removing EGR on a'96 SLS
  88. Whats the easy way to change the alternator on a Northstar? (99 Deville)
  89. Northstar shifting past redline
  90. 93/94 engines
  91. No Heat at Idle
  92. What's involved to drop the oil pan?
  93. Iradium spark plugs for 99deville? Better or worse? What the best plug & wires??
  94. Tell me about Force Motors/pressure control solenoids
  95. 99 Head Gasket Warranty?
  96. How can u save gas on a 99 deville?
  97. PC0327 - 96DeVille
  98. 1995 STS Cooling problems?
  99. Sts engine has this knocking sound
  100. Heater Core Leak/ Need Some Help, Please
  101. GM MAF sensor information and Discussion
  102. bottom end problems??
  103. Car runs hot but doesn't over heat
  104. Fuel Line Leak
  105. I have a cracked block, what next?
  106. RTV Silicone on Transmission Side Cover?
  107. hypothetically speaking
  108. 02 STS uses tons of oil
  109. Northstar Modifications
  110. 10w40 in N*
  111. 94 STS starts only if pressing gas, idles rough, dies after a couple minutes
  112. upgrading 94 concours
  113. '98 STS valve cover
  114. HELP- Dropped a bolt in the intake valley
  115. Intake manifold crack?
  116. Need Some Code Help 02 Seville
  117. Crankshaft position sensor
  118. engine compatibility
  119. 1994 DeVille Concourse
  120. misfire at idle
  121. Need help removing 99 STS northstar motor
  122. 1st time motor pull for HG on 99 N*, some questions
  123. 97 Etc N* Head Gasket Project
  124. Headgasket Leaks & Repairs
  125. check coolant light on???
  126. High idle/ IAC clicking?
  127. HELP!! Fuel Rail Recall Problems 1996 Seville
  128. Engine stutter/punch
  129. P0741 TCC Stuck ON, tried much, what next
  130. What is the Northstar suppose to sound like?
  131. 2003 Sts 0-70
  132. IAC valve
  133. strange rumble sound during hard acceleration.
  134. 2002 STC - Front Engine Mount Broken
  135. Mobil 1 5W30 meets GM spec 4718M but Mobil 1 10W30 DOES NOT. WHAT GIVES?
  136. Unbolting "beauty cover" on a 1999 Deville What GIVES
  137. Where is my IAT Sensor located? 99 sts
  138. 1997 Seville SLS
  139. Arizona Cadillac Owners Cheap Northstar Engine
  140. questions about PC0300 code on 96 deville
  141. Help with this code...97 Cadillac deville
  142. Drive vs 3 What's better???
  143. Cam numbers?
  144. What Spark Plugs for a 1999 DeVille Northstar?
  145. Using synthetic oil in a Northstar-Why does Cadillac recommend 10W30?
  146. Engine Oil Myths including ZDP by GM
  147. anyone ever use HEAL-A-SEAL
  148. Does vacuum sound from Surge Tank equal head gaskets?
  149. 94 Northstar Flexplate knocking noice. HELP!!
  150. 2003 DHS - Sluggish - EGR?
  151. Whirring/grinding That's Speed Sensitive
  152. 2002 deville/dhs engine trouble
  153. How can I clean the Mass Air Flow??
  154. Thanks for nothing, Northstar.
  155. P0147 - Heated Oxygen Sensor (HO2S) Heater Performance Bank 1 Sensor 3 - overheating
  156. Crank sensor tech 95 sts
  157. 1st gear WOT
  158. The End
  159. 99 STS Turbo charged video
  160. valve seals
  161. 1999 Seville Ignition DTC Help!
  162. Smoking Northstar?
  163. How long is your NS dipstick?
  164. weep holes
  165. engine swap for a 2001 dts
  166. P0741 - TCC System Stuck Off
  167. new Delco spark plug wires installed
  168. 1998 Deville overheating
  169. Help Having A Heart Attack! P039 / TRanny?
  170. N* programmer?
  171. Is it possible?
  172. Northstar Buick
  173. N* Runs Rough at Cold Start
  174. Bank 1 , 2 ??????
  175. Engine build
  176. P0300,p - Engine Misfire Detected 2002 deville, help please
  177. 2003 Deville with RWD
  178. Starter location
  179. Questions, Questions, and more Questions
  180. 93 sts traction disabled
  181. rental lincoln
  182. how to stay away from power loss
  183. 96 sts supercharger
  184. Are headgasket issues getting more common lately?
  185. 1998 Seville STS Chiptuning
  186. Tranny problems?
  187. Northstar Dyno Registry
  188. New Engine...climate control issues.
  189. Cryogenics
  190. My Photo Essay N* Head Gasket Repair Job
  191. Custom intake and nitrous
  192. 94 concours
  193. SLS Y-Code Engine: Do I need to replace the EGR Valve? PCM?
  194. service manual
  195. Possible Applications for Northstar?
  196. Need help....PLZ!!
  197. so i got a few PCM codes
  198. GM's Veiw on Fuel and Oil Additives
  199. How do I Reset the Change Oil Message?
  200. so when i went to pull codes, it just said all
  201. T061 T083
  202. 97 Deville No Longer Starts
  203. help on my 99' seville sls
  204. Starting issue
  205. 97 SLS Motor Swap to an 03. Is it possible?
  206. head
  207. 99 SLS and Straight DexCool rather than 50/50
  208. No 1st Gear!!!
  209. Cheap Northstar in NH, 35,000 miles
  210. Steering Wheel puff of smoke
  211. on the tranny subject
  212. Talk about luck!!
  213. New motor runs a lil hotter?
  214. o2 sensor question
  215. What is HOT for a blown head gasket
  216. Need Help Info On Where To Buy Rebuilt Engine
  217. compatable parts
  218. NorthStar swap wiring harness
  219. product question
  220. How long do you think caddy will keep the N*?
  221. SS Fuel Rail Removal
  222. Would this be a wise choice? [CAI] on a 184,000 mile northstar
  223. E85 on northstar ???
  224. just got my Plates
  225. 1996 Cadillac DeVille NO CODES ????
  226. Engine code - EOP
  227. Type of engine?
  228. Turbo Charged STS Cadillac
  229. Northstar Cam specs
  230. How can I drive 1000 miles with a coolant leak?
  231. To Rebuild or not.
  232. Do you use dealer for Northstar repairs?
  233. How long do Northstar engines last?
  234. 4.6 northstar fuel pressure?
  235. 150 miles in limp home mode
  236. CKP Question for One of the Techs
  237. Any problems trying 20W-50 in a '97?
  238. New 95' STS owner with tech question
  239. tune up ,whats involved?
  240. Oh shoot...need help ASAP...:(
  241. Radiator Cooling Fans not running
  242. Ram Air! (Maybe)
  243. Engine runs a bit rough during cold winter starts
  244. "break in" period for new Northstar engine
  245. How many miles to you get per tankfull with your north*?
  246. Inserts
  247. GM now offers Premium Remanufactured 4.6L Northstar
  248. 00 to 03 engine in a 98 or 99 Seville.
  249. recommended shop in Toronto/Kitchener area
  250. After head gasket repair engine knocks