: Northstar Engines and System Technical Discussion



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  1. Problems with 02 DHS, need more opinions
  2. Can you name this Car?
  3. Two 4.6 Northstar Motors What are they Worth?
  4. How hot can you go?
  5. Throttle Position Sensor 94 N* - how to replace?
  6. Questions about low-mile oft-stored '02 Eldorado
  7. P0741 & P1860
  8. 96 deville egr valve cleaning
  9. Hey, all you guys, check radiator hoses
  10. Anyone who can read motor serials get in here (calling AJ)
  11. Pinging above 3000RPM with 93 octane
  12. Northstar mechanic
  13. now mine STS too Broken HG :(
  14. Cam Question For AJ or Ewill
  15. 2000-2005 Headgasket...
  16. Northstar Oil Leak
  17. 99 sts stalling out
  18. roller lifters or flat tappet
  19. po39 tcc vcc help
  20. 2000 Deville DTS Overheating
  21. Track Results and Video's
  22. big problems on 97 deville>please help me
  23. Compressor/ Air Ride Help
  24. Dealer Flush
  25. Overheating
  26. head gasket seeping oil
  27. No start (cranks OK)
  28. Advice on leak detection kits please
  29. Northstar dimensions
  30. AJ-Question
  31. New here need help
  32. help please
  33. Why didn't Cadillac make a larger displacement Northstar?
  34. Check Gas Cap Message.
  35. Changing the cams on an STS to the SLS Cams
  36. why wont my fans work?
  37. 99 STS, almost working
  38. Loud Engine Whine
  39. Over-sized Northstar Pistons
  40. overheating problem
  41. seville with shifting problems 1rst > 2nd
  42. msd coil?
  43. very hard start in the cold on N*
  44. L37 or LD8 ????
  45. Need a reliable source for Northstar Torque specs
  46. Northstar Rod Spec's & 3.6L
  47. symptoms of bolt failure/lifted heads
  48. 99 Deville Northstar Overheating -wanting non contradicting answers
  49. 2000 DeVille Overheating Update
  50. Bad Alternator?
  51. 1996 Deville Troubleshoot update
  52. Fuel pressure regulator?
  53. IAC Counts
  54. Thermagasket Does It Work???
  55. Missed one connection
  56. Those Damn HEAD GASKETS
  57. LC3 FWD Swap?
  58. ? For Ewill or AJ
  59. looking for pictures of northstar valvetrain
  60. So, here are the symptoms, whats wrong
  61. Northstar Valvetrain Clatter
  62. 200 DeVille Blows hot air at low speed turns cold
  63. Could it be the Water Pump Knocking
  64. Can anyone tell me whats wrong?
  65. Front Valvetrain Clacking
  66. labor cost to replace o2 sensor????
  67. Difference between VIN Y and VIN 9
  68. Got Code P1415 Please Help
  69. 2000 Deville with northstar
  70. 1034-loss of PCM data
  71. Obd I P046
  72. Computer/wiring problems
  73. Need help on 98 Seville/Northstar
  74. New HG Installed on a 99, Pings on Start Up?
  75. Got my 05 Deville back from Dealer!! and extra part for sale.
  76. Need help - going to see a 98 Seville STS on Sat, what do I check?
  77. Sick Tranny?
  78. Engine Help!!!
  79. 2nd annual midwest meet !
  80. 2001 Cadillac SLS LD8 Bore-increase
  81. White Smoke coming from front of car
  82. !996 Deville help troubleshoot
  83. I have a question about cold startswith N*??
  84. How do you disable the traction control perm without having to press the button in...
  85. 94 N* EGR valve ?? Engine stumbles.
  86. P0121, P0507 High Idle???
  87. 94 ETC no shift, wont idle
  88. Looking for '98 ETC mods
  89. What's your preference for plugs and wires ?
  90. intake manifold exploded/hole after backfire??
  91. 95 STS Cooling System Quirks
  92. MSD ignition
  93. Idea for vehicle to do Northstar swap on.
  94. NEED HELP - HAVE CODES P1416 and P0101
  95. quote???
  96. FPR replacement on 94 N*
  97. torker
  98. Sticking gas pedal????, high idle all of the sudden???? What do I check??? PLZ HELP!!
  99. Crankshaft & Cam sensors questions
  100. Why is my '96 Northstar now using oil?
  101. how to search forums..and cpk sensor question (2000 cadillac stalling)
  102. O2 Sensor Questions
  103. How can you tell if your HG's are shot?
  104. Rebuilt N*
  105. 97 STS vs. The drag strip
  106. 94 northstar starting problem
  107. Can i use synthetic oil in northstar?
  108. Getting Screwed
  109. Where is the main engine to body ground?
  110. white smoke n hp loss
  111. Is it me, or are alot of N*s having cracked blocks
  112. this is not an arguement thread for oil !
  113. 95 northstar tranny
  114. Is It Possible To???
  115. Engine stopped at the end of an exit ramp Any IDEAS WHY?
  116. Serpentine belt
  117. Need a VIN to a STS with the Z(W) option, I have the option but I don't like the Euro
  118. Removing EGR on a'96 SLS
  119. Whats the easy way to change the alternator on a Northstar? (99 Deville)
  120. Northstar shifting past redline
  121. 93/94 engines
  122. No Heat at Idle
  123. What's involved to drop the oil pan?
  124. Iradium spark plugs for 99deville? Better or worse? What the best plug & wires??
  125. Tell me about Force Motors/pressure control solenoids
  126. 99 Head Gasket Warranty?
  127. How can u save gas on a 99 deville?
  128. PC0327 - 96DeVille
  129. 1995 STS Cooling problems?
  130. Sts engine has this knocking sound
  131. Heater Core Leak/ Need Some Help, Please
  132. GM MAF sensor information and Discussion
  133. bottom end problems??
  134. Car runs hot but doesn't over heat
  135. Fuel Line Leak
  136. I have a cracked block, what next?
  137. RTV Silicone on Transmission Side Cover?
  138. hypothetically speaking
  139. 02 STS uses tons of oil
  140. Northstar Modifications
  141. 10w40 in N*
  142. 94 STS starts only if pressing gas, idles rough, dies after a couple minutes
  143. upgrading 94 concours
  144. '98 STS valve cover
  145. HELP- Dropped a bolt in the intake valley
  146. Intake manifold crack?
  147. Need Some Code Help 02 Seville
  148. Crankshaft position sensor
  149. engine compatibility
  150. 1994 DeVille Concourse
  151. misfire at idle
  152. Need help removing 99 STS northstar motor
  153. 1st time motor pull for HG on 99 N*, some questions
  154. 97 Etc N* Head Gasket Project
  155. Headgasket Leaks & Repairs
  156. check coolant light on???
  157. High idle/ IAC clicking?
  158. HELP!! Fuel Rail Recall Problems 1996 Seville
  159. Engine stutter/punch
  160. P0741 TCC Stuck ON, tried much, what next
  161. What is the Northstar suppose to sound like?
  162. 2003 Sts 0-70
  163. IAC valve
  164. strange rumble sound during hard acceleration.
  165. 2002 STC - Front Engine Mount Broken
  166. Mobil 1 5W30 meets GM spec 4718M but Mobil 1 10W30 DOES NOT. WHAT GIVES?
  167. Unbolting "beauty cover" on a 1999 Deville What GIVES
  168. Where is my IAT Sensor located? 99 sts
  169. 1997 Seville SLS
  170. Arizona Cadillac Owners Cheap Northstar Engine
  171. questions about PC0300 code on 96 deville
  172. Help with this code...97 Cadillac deville
  173. Drive vs 3 What's better???
  174. Cam numbers?
  175. What Spark Plugs for a 1999 DeVille Northstar?
  176. Using synthetic oil in a Northstar-Why does Cadillac recommend 10W30?
  177. Engine Oil Myths including ZDP by GM
  178. anyone ever use HEAL-A-SEAL
  179. Does vacuum sound from Surge Tank equal head gaskets?
  180. 94 Northstar Flexplate knocking noice. HELP!!
  181. 2003 DHS - Sluggish - EGR?
  182. Whirring/grinding That's Speed Sensitive
  183. 2002 deville/dhs engine trouble
  184. How can I clean the Mass Air Flow??
  185. Thanks for nothing, Northstar.
  186. P0147 - Heated Oxygen Sensor (HO2S) Heater Performance Bank 1 Sensor 3 - overheating
  187. Crank sensor tech 95 sts
  188. 1st gear WOT
  189. The End
  190. 99 STS Turbo charged video
  191. valve seals
  192. 1999 Seville Ignition DTC Help!
  193. Smoking Northstar?
  194. How long is your NS dipstick?
  195. weep holes
  196. engine swap for a 2001 dts
  197. P0741 - TCC System Stuck Off
  198. new Delco spark plug wires installed
  199. 1998 Deville overheating
  200. Help Having A Heart Attack! P039 / TRanny?
  201. N* programmer?
  202. Is it possible?
  203. Northstar Buick
  204. N* Runs Rough at Cold Start
  205. Bank 1 , 2 ??????
  206. Engine build
  207. P0300,p - Engine Misfire Detected 2002 deville, help please
  208. 2003 Deville with RWD
  209. Starter location
  210. Questions, Questions, and more Questions
  211. 93 sts traction disabled
  212. rental lincoln
  213. how to stay away from power loss
  214. 96 sts supercharger
  215. Are headgasket issues getting more common lately?
  216. 1998 Seville STS Chiptuning
  217. Tranny problems?
  218. Northstar Dyno Registry
  219. New Engine...climate control issues.
  220. Cryogenics
  221. My Photo Essay N* Head Gasket Repair Job
  222. Custom intake and nitrous
  223. 94 concours
  224. SLS Y-Code Engine: Do I need to replace the EGR Valve? PCM?
  225. service manual
  226. Possible Applications for Northstar?
  227. Need help....PLZ!!
  228. so i got a few PCM codes
  229. GM's Veiw on Fuel and Oil Additives
  230. How do I Reset the Change Oil Message?
  231. so when i went to pull codes, it just said all
  232. T061 T083
  233. 97 Deville No Longer Starts
  234. help on my 99' seville sls
  235. Starting issue
  236. 97 SLS Motor Swap to an 03. Is it possible?
  237. head
  238. 99 SLS and Straight DexCool rather than 50/50
  239. No 1st Gear!!!
  240. Cheap Northstar in NH, 35,000 miles
  241. Steering Wheel puff of smoke
  242. on the tranny subject
  243. Talk about luck!!
  244. New motor runs a lil hotter?
  245. o2 sensor question
  246. What is HOT for a blown head gasket
  247. Need Help Info On Where To Buy Rebuilt Engine
  248. compatable parts
  249. NorthStar swap wiring harness
  250. product question