: Northstar Engines and System Technical Discussion



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  1. labor cost to replace o2 sensor????
  2. Difference between VIN Y and VIN 9
  3. Got Code P1415 Please Help
  4. 2000 Deville with northstar
  5. 1034-loss of PCM data
  6. Obd I P046
  7. Computer/wiring problems
  8. Need help on 98 Seville/Northstar
  9. New HG Installed on a 99, Pings on Start Up?
  10. Got my 05 Deville back from Dealer!! and extra part for sale.
  11. Need help - going to see a 98 Seville STS on Sat, what do I check?
  12. Sick Tranny?
  13. Engine Help!!!
  14. 2nd annual midwest meet !
  15. 2001 Cadillac SLS LD8 Bore-increase
  16. White Smoke coming from front of car
  17. !996 Deville help troubleshoot
  18. I have a question about cold startswith N*??
  19. How do you disable the traction control perm without having to press the button in...
  20. 94 N* EGR valve ?? Engine stumbles.
  21. P0121, P0507 High Idle???
  22. 94 ETC no shift, wont idle
  23. Looking for '98 ETC mods
  24. What's your preference for plugs and wires ?
  25. intake manifold exploded/hole after backfire??
  26. 95 STS Cooling System Quirks
  27. MSD ignition
  28. Idea for vehicle to do Northstar swap on.
  29. NEED HELP - HAVE CODES P1416 and P0101
  30. quote???
  31. FPR replacement on 94 N*
  32. torker
  33. Sticking gas pedal????, high idle all of the sudden???? What do I check??? PLZ HELP!!
  34. Crankshaft & Cam sensors questions
  35. Why is my '96 Northstar now using oil?
  36. how to search forums..and cpk sensor question (2000 cadillac stalling)
  37. O2 Sensor Questions
  38. How can you tell if your HG's are shot?
  39. Rebuilt N*
  40. 97 STS vs. The drag strip
  41. 94 northstar starting problem
  42. Can i use synthetic oil in northstar?
  43. Getting Screwed
  44. Where is the main engine to body ground?
  45. white smoke n hp loss
  46. Is it me, or are alot of N*s having cracked blocks
  47. this is not an arguement thread for oil !
  48. 95 northstar tranny
  49. Is It Possible To???
  50. Engine stopped at the end of an exit ramp Any IDEAS WHY?
  51. Serpentine belt
  52. Need a VIN to a STS with the Z(W) option, I have the option but I don't like the Euro
  53. Removing EGR on a'96 SLS
  54. Whats the easy way to change the alternator on a Northstar? (99 Deville)
  55. Northstar shifting past redline
  56. 93/94 engines
  57. No Heat at Idle
  58. What's involved to drop the oil pan?
  59. Iradium spark plugs for 99deville? Better or worse? What the best plug & wires??
  60. Tell me about Force Motors/pressure control solenoids
  61. 99 Head Gasket Warranty?
  62. How can u save gas on a 99 deville?
  63. PC0327 - 96DeVille
  64. 1995 STS Cooling problems?
  65. Sts engine has this knocking sound
  66. Heater Core Leak/ Need Some Help, Please
  67. GM MAF sensor information and Discussion
  68. bottom end problems??
  69. Car runs hot but doesn't over heat
  70. Fuel Line Leak
  71. I have a cracked block, what next?
  72. RTV Silicone on Transmission Side Cover?
  73. hypothetically speaking
  74. 02 STS uses tons of oil
  75. Northstar Modifications
  76. 10w40 in N*
  77. 94 STS starts only if pressing gas, idles rough, dies after a couple minutes
  78. upgrading 94 concours
  79. '98 STS valve cover
  80. HELP- Dropped a bolt in the intake valley
  81. Intake manifold crack?
  82. Need Some Code Help 02 Seville
  83. Crankshaft position sensor
  84. engine compatibility
  85. 1994 DeVille Concourse
  86. misfire at idle
  87. Need help removing 99 STS northstar motor
  88. 1st time motor pull for HG on 99 N*, some questions
  89. 97 Etc N* Head Gasket Project
  90. Headgasket Leaks & Repairs
  91. check coolant light on???
  92. High idle/ IAC clicking?
  93. HELP!! Fuel Rail Recall Problems 1996 Seville
  94. Engine stutter/punch
  95. P0741 TCC Stuck ON, tried much, what next
  96. What is the Northstar suppose to sound like?
  97. 2003 Sts 0-70
  98. IAC valve
  99. strange rumble sound during hard acceleration.
  100. 2002 STC - Front Engine Mount Broken
  101. Mobil 1 5W30 meets GM spec 4718M but Mobil 1 10W30 DOES NOT. WHAT GIVES?
  102. Unbolting "beauty cover" on a 1999 Deville What GIVES
  103. Where is my IAT Sensor located? 99 sts
  104. 1997 Seville SLS
  105. Arizona Cadillac Owners Cheap Northstar Engine
  106. questions about PC0300 code on 96 deville
  107. Help with this code...97 Cadillac deville
  108. Drive vs 3 What's better???
  109. Cam numbers?
  110. What Spark Plugs for a 1999 DeVille Northstar?
  111. Using synthetic oil in a Northstar-Why does Cadillac recommend 10W30?
  112. Engine Oil Myths including ZDP by GM
  113. anyone ever use HEAL-A-SEAL
  114. Does vacuum sound from Surge Tank equal head gaskets?
  115. 94 Northstar Flexplate knocking noice. HELP!!
  116. 2003 DHS - Sluggish - EGR?
  117. Whirring/grinding That's Speed Sensitive
  118. 2002 deville/dhs engine trouble
  119. How can I clean the Mass Air Flow??
  120. Thanks for nothing, Northstar.
  121. P0147 - Heated Oxygen Sensor (HO2S) Heater Performance Bank 1 Sensor 3 - overheating
  122. Crank sensor tech 95 sts
  123. 1st gear WOT
  124. The End
  125. 99 STS Turbo charged video
  126. valve seals
  127. 1999 Seville Ignition DTC Help!
  128. Smoking Northstar?
  129. How long is your NS dipstick?
  130. weep holes
  131. engine swap for a 2001 dts
  132. P0741 - TCC System Stuck Off
  133. new Delco spark plug wires installed
  134. 1998 Deville overheating
  135. Help Having A Heart Attack! P039 / TRanny?
  136. N* programmer?
  137. Is it possible?
  138. Northstar Buick
  139. N* Runs Rough at Cold Start
  140. Bank 1 , 2 ??????
  141. Engine build
  142. P0300,p - Engine Misfire Detected 2002 deville, help please
  143. 2003 Deville with RWD
  144. Starter location
  145. Questions, Questions, and more Questions
  146. 93 sts traction disabled
  147. rental lincoln
  148. how to stay away from power loss
  149. 96 sts supercharger
  150. Are headgasket issues getting more common lately?
  151. 1998 Seville STS Chiptuning
  152. Tranny problems?
  153. Northstar Dyno Registry
  154. New Engine...climate control issues.
  155. Cryogenics
  156. My Photo Essay N* Head Gasket Repair Job
  157. Custom intake and nitrous
  158. 94 concours
  159. SLS Y-Code Engine: Do I need to replace the EGR Valve? PCM?
  160. service manual
  161. Possible Applications for Northstar?
  162. Need help....PLZ!!
  163. so i got a few PCM codes
  164. GM's Veiw on Fuel and Oil Additives
  165. How do I Reset the Change Oil Message?
  166. so when i went to pull codes, it just said all
  167. T061 T083
  168. 97 Deville No Longer Starts
  169. help on my 99' seville sls
  170. Starting issue
  171. 97 SLS Motor Swap to an 03. Is it possible?
  172. head
  173. 99 SLS and Straight DexCool rather than 50/50
  174. No 1st Gear!!!
  175. Cheap Northstar in NH, 35,000 miles
  176. Steering Wheel puff of smoke
  177. on the tranny subject
  178. Talk about luck!!
  179. New motor runs a lil hotter?
  180. o2 sensor question
  181. What is HOT for a blown head gasket
  182. Need Help Info On Where To Buy Rebuilt Engine
  183. compatable parts
  184. NorthStar swap wiring harness
  185. product question
  186. How long do you think caddy will keep the N*?
  187. SS Fuel Rail Removal
  188. Would this be a wise choice? [CAI] on a 184,000 mile northstar
  189. E85 on northstar ???
  190. just got my Plates
  191. 1996 Cadillac DeVille NO CODES ????
  192. Engine code - EOP
  193. Type of engine?
  194. Turbo Charged STS Cadillac
  195. Northstar Cam specs
  196. How can I drive 1000 miles with a coolant leak?
  197. To Rebuild or not.
  198. Do you use dealer for Northstar repairs?
  199. How long do Northstar engines last?
  200. 4.6 northstar fuel pressure?
  201. 150 miles in limp home mode
  202. CKP Question for One of the Techs
  203. Any problems trying 20W-50 in a '97?
  204. New 95' STS owner with tech question
  205. tune up ,whats involved?
  206. Oh shoot...need help ASAP...:(
  207. Radiator Cooling Fans not running
  208. Ram Air! (Maybe)
  209. Engine runs a bit rough during cold winter starts
  210. "break in" period for new Northstar engine
  211. How many miles to you get per tankfull with your north*?
  212. Inserts
  213. GM now offers Premium Remanufactured 4.6L Northstar
  214. 00 to 03 engine in a 98 or 99 Seville.
  215. recommended shop in Toronto/Kitchener area
  216. After head gasket repair engine knocks
  217. transaxel fluid change
  218. N* Injectors and Fuel Pressure Regulator
  219. transaxel filter
  220. 2002 plentum leak
  221. Sts Running Terrible
  222. 96 Cylinder head on 93 block
  223. My car has 121k on it..should I change the trany fluid?
  224. 96 to 99 Eldo, Deville, and 96, 97 Seville Tuning
  225. valve noise at startup
  226. Breaking in a N*
  227. Invisible leak (coolant)
  228. Another seafoam thread
  229. Is there an easy way to change coolant?
  230. what is considered normal coolant temperture for a north*?
  231. please identify mystery black box 01 DTS
  232. Northstar Headgasket/Cracked Block/Bolt Failure? Please let us know
  233. Flushing Radiator
  234. Are there any worthwhile performance mods for the 98 north*?
  235. Was there more then one north* engine in 1998?
  236. Three (3) Codes on 1996 SLS: P1406, P0401, P0108
  237. Northstar Air Consumption.
  238. Eldo Gone....
  239. 4T80-E Transmission Fluid Change - DONE!
  240. P119 - Shorted Fuel Injector Problem
  241. How often do you WOT your north*?
  242. Before i go to beat the crap outta my car - WOT cleaning
  243. denso wires ???
  244. timeserts -so do these things prevent bad head gaskets
  245. Northstar 32 valve good for swap-out?
  246. '94 sts.. ignition coils, ignition control module?
  247. Car will not turn over....
  248. Has anyone ever got the P0741 code?
  249. Are there any good oil additives to add...
  250. I read a post about top tier gasoline....