: Northstar Engines and System Technical Discussion



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  1. 2002 deville/dhs engine trouble
  2. How can I clean the Mass Air Flow??
  3. Thanks for nothing, Northstar.
  4. P0147 - Heated Oxygen Sensor (HO2S) Heater Performance Bank 1 Sensor 3 - overheating
  5. Crank sensor tech 95 sts
  6. 1st gear WOT
  7. The End
  8. 99 STS Turbo charged video
  9. valve seals
  10. 1999 Seville Ignition DTC Help!
  11. Smoking Northstar?
  12. How long is your NS dipstick?
  13. weep holes
  14. engine swap for a 2001 dts
  15. P0741 - TCC System Stuck Off
  16. new Delco spark plug wires installed
  17. 1998 Deville overheating
  18. Help Having A Heart Attack! P039 / TRanny?
  19. N* programmer?
  20. Is it possible?
  21. Northstar Buick
  22. N* Runs Rough at Cold Start
  23. Bank 1 , 2 ??????
  24. Engine build
  25. P0300,p - Engine Misfire Detected 2002 deville, help please
  26. 2003 Deville with RWD
  27. Starter location
  28. Questions, Questions, and more Questions
  29. 93 sts traction disabled
  30. rental lincoln
  31. how to stay away from power loss
  32. 96 sts supercharger
  33. Are headgasket issues getting more common lately?
  34. 1998 Seville STS Chiptuning
  35. Tranny problems?
  36. Northstar Dyno Registry
  37. New Engine...climate control issues.
  38. Cryogenics
  39. My Photo Essay N* Head Gasket Repair Job
  40. Custom intake and nitrous
  41. 94 concours
  42. SLS Y-Code Engine: Do I need to replace the EGR Valve? PCM?
  43. service manual
  44. Possible Applications for Northstar?
  45. Need help....PLZ!!
  46. so i got a few PCM codes
  47. GM's Veiw on Fuel and Oil Additives
  48. How do I Reset the Change Oil Message?
  49. so when i went to pull codes, it just said all
  50. T061 T083
  51. 97 Deville No Longer Starts
  52. help on my 99' seville sls
  53. Starting issue
  54. 97 SLS Motor Swap to an 03. Is it possible?
  55. head
  56. 99 SLS and Straight DexCool rather than 50/50
  57. No 1st Gear!!!
  58. Cheap Northstar in NH, 35,000 miles
  59. Steering Wheel puff of smoke
  60. on the tranny subject
  61. Talk about luck!!
  62. New motor runs a lil hotter?
  63. o2 sensor question
  64. What is HOT for a blown head gasket
  65. Need Help Info On Where To Buy Rebuilt Engine
  66. compatable parts
  67. NorthStar swap wiring harness
  68. product question
  69. How long do you think caddy will keep the N*?
  70. SS Fuel Rail Removal
  71. Would this be a wise choice? [CAI] on a 184,000 mile northstar
  72. E85 on northstar ???
  73. just got my Plates
  74. 1996 Cadillac DeVille NO CODES ????
  75. Engine code - EOP
  76. Type of engine?
  77. Turbo Charged STS Cadillac
  78. Northstar Cam specs
  79. How can I drive 1000 miles with a coolant leak?
  80. To Rebuild or not.
  81. Do you use dealer for Northstar repairs?
  82. How long do Northstar engines last?
  83. 4.6 northstar fuel pressure?
  84. 150 miles in limp home mode
  85. CKP Question for One of the Techs
  86. Any problems trying 20W-50 in a '97?
  87. New 95' STS owner with tech question
  88. tune up ,whats involved?
  89. Oh shoot...need help ASAP...:(
  90. Radiator Cooling Fans not running
  91. Ram Air! (Maybe)
  92. Engine runs a bit rough during cold winter starts
  93. "break in" period for new Northstar engine
  94. How many miles to you get per tankfull with your north*?
  95. Inserts
  96. GM now offers Premium Remanufactured 4.6L Northstar
  97. 00 to 03 engine in a 98 or 99 Seville.
  98. recommended shop in Toronto/Kitchener area
  99. After head gasket repair engine knocks
  100. transaxel fluid change
  101. N* Injectors and Fuel Pressure Regulator
  102. transaxel filter
  103. 2002 plentum leak
  104. Sts Running Terrible
  105. 96 Cylinder head on 93 block
  106. My car has 121k on it..should I change the trany fluid?
  107. 96 to 99 Eldo, Deville, and 96, 97 Seville Tuning
  108. valve noise at startup
  109. Breaking in a N*
  110. Invisible leak (coolant)
  111. Another seafoam thread
  112. Is there an easy way to change coolant?
  113. what is considered normal coolant temperture for a north*?
  114. please identify mystery black box 01 DTS
  115. Northstar Headgasket/Cracked Block/Bolt Failure? Please let us know
  116. Flushing Radiator
  117. Are there any worthwhile performance mods for the 98 north*?
  118. Was there more then one north* engine in 1998?
  119. Three (3) Codes on 1996 SLS: P1406, P0401, P0108
  120. Northstar Air Consumption.
  121. Eldo Gone....
  122. 4T80-E Transmission Fluid Change - DONE!
  123. P119 - Shorted Fuel Injector Problem
  124. How often do you WOT your north*?
  125. Before i go to beat the crap outta my car - WOT cleaning
  126. denso wires ???
  127. timeserts -so do these things prevent bad head gaskets
  128. Northstar 32 valve good for swap-out?
  129. '94 sts.. ignition coils, ignition control module?
  130. Car will not turn over....
  131. Has anyone ever got the P0741 code?
  132. Are there any good oil additives to add...
  133. I read a post about top tier gasoline....
  134. '95 Concours hard starting when it's cold outside
  135. my service engine soon light is on
  136. bad idea to use 87 octane?
  137. royal purple on a N*
  138. 03 n* and trans in a 99 SLS
  139. What gives the Northstar its "whirring" sound at idle?
  140. 96 sts starter problems, questions?
  141. How would i get a custom pcm?
  142. Beef up a 4.6L NStar?
  143. squeeky serpatine belt *new belt and tensioner*
  144. N* performance
  145. what year was it?
  146. opinions on high flow cats
  147. Gasoline Consumption question
  148. Looking for a Timesert Kit
  149. Engine Performance mods 95 STS
  150. Which oil i need for my 96 eldorado????
  151. How long should I let the N* warm up in the morning?
  152. Timesert Kits?
  153. 1997 SLS (overheating)
  154. Changing brakes on 96 SLS
  155. 2000 dts northstar reliabilty
  156. 2002 ETC Collector-mobile.
  157. What's the difference between the STS and SLS engines?
  158. Internal Mods For Northstar
  159. 99 to 00+ swap differences
  160. stuttering at idle
  161. 1999 Cadillac STS love/hate relationship...
  162. Free Northstar Engine
  163. Help the new guy make a good decision
  164. High Performance Head Gaskets?
  165. Parts ID
  166. Not run for 6 years, what would you do?
  167. 00 PCM on a 99 engine
  168. Blown Headgasket
  169. Aluminum Block porisity
  170. Its Alive
  171. oil life monitor problem
  172. P094 limp mode, no overdrive
  173. Valve Stem Seal Puller
  174. Homemade Valve Spring Compressor
  175. What Should I Pay For Eibachs?
  176. Trans Fluid/Filter change and Coolant drain/refill...
  177. Randomly Creeping High Idle Problem
  178. Stock spark plug wires, 7 or 8 mm?
  179. transmission oil looks dark :S
  180. how many cubic inches
  181. Northstar coil pack firing order
  182. '96 Sls: P1406: Egr
  183. GM Oil Consumption TSB, 2007
  184. Dexcool/Peak coolant
  185. noobie questions
  186. God a northstar sounds sexy, but does something sound odd
  187. Coolant leak...
  188. Northstar motor install
  189. overheating, waterpump? 2002 deville w/ 120k miles
  190. Transmission won't "kickdown" 1994 Eldorado
  191. Blocks cracking on final head torque?
  192. How to remove timeserts?
  193. crankshaft postion sensor
  194. '05 STS - Slipping Transmission at low MPH
  195. rear wheel drive conversion
  196. Cadillac Overheating Issues
  197. humming noise
  198. Clogged vacuum port to fuel pressure regulator
  199. thermostat starting to rise in strange way
  200. overheating , but ez fix?
  201. intermittent "hard start" when car at operating temp
  202. How to tell if block is timeserted?
  203. HELP ME!!!! What is the difference between ECON and Auto
  204. clogged cat = overheating?
  205. 2000-up coil pack crack
  206. 93 sts trans solenoids?
  207. Sealing off a blown head gasket
  208. Rear Main Seal
  209. Oil Life % vs. Reality
  210. Time out!!
  211. engines misses after teardown
  212. 93 STS Northstar won't start
  213. Motor build for sand rail
  214. What kind of gas mileage do you get with your Northstar?
  215. crank sensors
  216. 4.0 Northstar No Start PLEASE HELP!!!
  217. What Northstar do I have?
  218. 96 Eldorado ETC - Blown head gasket
  219. Radiator hoses
  220. headgasket pics
  221. Converter Size
  222. Cylinder Head Reconditioning
  223. 02 sts N* Engine knock
  224. MAF Issues
  225. Oil Pressure Issue - 2000 Cadillac DeVille
  226. Northstar mechanic in the Massachusetts??
  227. Need Help
  228. 93 sts misses and no 2-3 shift
  229. Good fresh tim-serted 94' SLS engine on ebay.
  230. Help, still overheating after headgasket job .
  231. Cooling fan motor bad?
  232. Roots style S/C for the northstar. Anytakers?
  233. front HVAC blower not working on 2000 deville
  234. 1995 STS won't start
  235. 94 4.6L SLS/STS Engine on Ebay
  236. oil level sensor
  237. Thought I had all the parts
  238. '99 Deville stalled and wont start
  239. 96 Deville stumbles on acceleration
  240. Spark Plug Gap
  241. P094 code
  242. 2001 Northstar 4.6 in 99 sts body??
  243. Short runner intake
  244. Bad Waterpump???
  245. Making a trip to fastchip
  246. Fan runs while car is shut off
  247. 94 Seville w/ 93 Engine & Trans (from Eldorado) Shift Problem
  248. Backfired while starting, now I have a miss!
  249. Octane Boosters
  250. Code Question