: Northstar Engines and System Technical Discussion



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