: Northstar Engines and System Technical Discussion



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  1. Throttle Position Sensor 94 N* - how to replace?
  2. Questions about low-mile oft-stored '02 Eldorado
  3. P0741 & P1860
  4. 96 deville egr valve cleaning
  5. Hey, all you guys, check radiator hoses
  6. Anyone who can read motor serials get in here (calling AJ)
  7. Pinging above 3000RPM with 93 octane
  8. Northstar mechanic
  9. now mine STS too Broken HG :(
  10. Cam Question For AJ or Ewill
  11. 2000-2005 Headgasket...
  12. Northstar Oil Leak
  13. 99 sts stalling out
  14. roller lifters or flat tappet
  15. po39 tcc vcc help
  16. 2000 Deville DTS Overheating
  17. Track Results and Video's
  18. big problems on 97 deville>please help me
  19. Compressor/ Air Ride Help
  20. Dealer Flush
  21. Overheating
  22. head gasket seeping oil
  23. No start (cranks OK)
  24. Advice on leak detection kits please
  25. Northstar dimensions
  26. AJ-Question
  27. New here need help
  28. help please
  29. Why didn't Cadillac make a larger displacement Northstar?
  30. Check Gas Cap Message.
  31. Changing the cams on an STS to the SLS Cams
  32. why wont my fans work?
  33. 99 STS, almost working
  34. Loud Engine Whine
  35. Over-sized Northstar Pistons
  36. overheating problem
  37. seville with shifting problems 1rst > 2nd
  38. msd coil?
  39. very hard start in the cold on N*
  40. L37 or LD8 ????
  41. Need a reliable source for Northstar Torque specs
  42. Northstar Rod Spec's & 3.6L
  43. symptoms of bolt failure/lifted heads
  44. 99 Deville Northstar Overheating -wanting non contradicting answers
  45. 2000 DeVille Overheating Update
  46. Bad Alternator?
  47. 1996 Deville Troubleshoot update
  48. Fuel pressure regulator?
  49. IAC Counts
  50. Thermagasket Does It Work???
  51. Missed one connection
  52. Those Damn HEAD GASKETS
  53. LC3 FWD Swap?
  54. ? For Ewill or AJ
  55. looking for pictures of northstar valvetrain
  56. So, here are the symptoms, whats wrong
  57. Northstar Valvetrain Clatter
  58. 200 DeVille Blows hot air at low speed turns cold
  59. Could it be the Water Pump Knocking
  60. Can anyone tell me whats wrong?
  61. Front Valvetrain Clacking
  62. labor cost to replace o2 sensor????
  63. Difference between VIN Y and VIN 9
  64. Got Code P1415 Please Help
  65. 2000 Deville with northstar
  66. 1034-loss of PCM data
  67. Obd I P046
  68. Computer/wiring problems
  69. Need help on 98 Seville/Northstar
  70. New HG Installed on a 99, Pings on Start Up?
  71. Got my 05 Deville back from Dealer!! and extra part for sale.
  72. Need help - going to see a 98 Seville STS on Sat, what do I check?
  73. Sick Tranny?
  74. Engine Help!!!
  75. 2nd annual midwest meet !
  76. 2001 Cadillac SLS LD8 Bore-increase
  77. White Smoke coming from front of car
  78. !996 Deville help troubleshoot
  79. I have a question about cold startswith N*??
  80. How do you disable the traction control perm without having to press the button in...
  81. 94 N* EGR valve ?? Engine stumbles.
  82. P0121, P0507 High Idle???
  83. 94 ETC no shift, wont idle
  84. Looking for '98 ETC mods
  85. What's your preference for plugs and wires ?
  86. intake manifold exploded/hole after backfire??
  87. 95 STS Cooling System Quirks
  88. MSD ignition
  89. Idea for vehicle to do Northstar swap on.
  90. NEED HELP - HAVE CODES P1416 and P0101
  91. quote???
  92. FPR replacement on 94 N*
  93. torker
  94. Sticking gas pedal????, high idle all of the sudden???? What do I check??? PLZ HELP!!
  95. Crankshaft & Cam sensors questions
  96. Why is my '96 Northstar now using oil?
  97. how to search forums..and cpk sensor question (2000 cadillac stalling)
  98. O2 Sensor Questions
  99. How can you tell if your HG's are shot?
  100. Rebuilt N*
  101. 97 STS vs. The drag strip
  102. 94 northstar starting problem
  103. Can i use synthetic oil in northstar?
  104. Getting Screwed
  105. Where is the main engine to body ground?
  106. white smoke n hp loss
  107. Is it me, or are alot of N*s having cracked blocks
  108. this is not an arguement thread for oil !
  109. 95 northstar tranny
  110. Is It Possible To???
  111. Engine stopped at the end of an exit ramp Any IDEAS WHY?
  112. Serpentine belt
  113. Need a VIN to a STS with the Z(W) option, I have the option but I don't like the Euro
  114. Removing EGR on a'96 SLS
  115. Whats the easy way to change the alternator on a Northstar? (99 Deville)
  116. Northstar shifting past redline
  117. 93/94 engines
  118. No Heat at Idle
  119. What's involved to drop the oil pan?
  120. Iradium spark plugs for 99deville? Better or worse? What the best plug & wires??
  121. Tell me about Force Motors/pressure control solenoids
  122. 99 Head Gasket Warranty?
  123. How can u save gas on a 99 deville?
  124. PC0327 - 96DeVille
  125. 1995 STS Cooling problems?
  126. Sts engine has this knocking sound
  127. Heater Core Leak/ Need Some Help, Please
  128. GM MAF sensor information and Discussion
  129. bottom end problems??
  130. Car runs hot but doesn't over heat
  131. Fuel Line Leak
  132. I have a cracked block, what next?
  133. RTV Silicone on Transmission Side Cover?
  134. hypothetically speaking
  135. 02 STS uses tons of oil
  136. Northstar Modifications
  137. 10w40 in N*
  138. 94 STS starts only if pressing gas, idles rough, dies after a couple minutes
  139. upgrading 94 concours
  140. '98 STS valve cover
  141. HELP- Dropped a bolt in the intake valley
  142. Intake manifold crack?
  143. Need Some Code Help 02 Seville
  144. Crankshaft position sensor
  145. engine compatibility
  146. 1994 DeVille Concourse
  147. misfire at idle
  148. Need help removing 99 STS northstar motor
  149. 1st time motor pull for HG on 99 N*, some questions
  150. 97 Etc N* Head Gasket Project
  151. Headgasket Leaks & Repairs
  152. check coolant light on???
  153. High idle/ IAC clicking?
  154. HELP!! Fuel Rail Recall Problems 1996 Seville
  155. Engine stutter/punch
  156. P0741 TCC Stuck ON, tried much, what next
  157. What is the Northstar suppose to sound like?
  158. 2003 Sts 0-70
  159. IAC valve
  160. strange rumble sound during hard acceleration.
  161. 2002 STC - Front Engine Mount Broken
  162. Mobil 1 5W30 meets GM spec 4718M but Mobil 1 10W30 DOES NOT. WHAT GIVES?
  163. Unbolting "beauty cover" on a 1999 Deville What GIVES
  164. Where is my IAT Sensor located? 99 sts
  165. 1997 Seville SLS
  166. Arizona Cadillac Owners Cheap Northstar Engine
  167. questions about PC0300 code on 96 deville
  168. Help with this code...97 Cadillac deville
  169. Drive vs 3 What's better???
  170. Cam numbers?
  171. What Spark Plugs for a 1999 DeVille Northstar?
  172. Using synthetic oil in a Northstar-Why does Cadillac recommend 10W30?
  173. Engine Oil Myths including ZDP by GM
  174. anyone ever use HEAL-A-SEAL
  175. Does vacuum sound from Surge Tank equal head gaskets?
  176. 94 Northstar Flexplate knocking noice. HELP!!
  177. 2003 DHS - Sluggish - EGR?
  178. Whirring/grinding That's Speed Sensitive
  179. 2002 deville/dhs engine trouble
  180. How can I clean the Mass Air Flow??
  181. Thanks for nothing, Northstar.
  182. P0147 - Heated Oxygen Sensor (HO2S) Heater Performance Bank 1 Sensor 3 - overheating
  183. Crank sensor tech 95 sts
  184. 1st gear WOT
  185. The End
  186. 99 STS Turbo charged video
  187. valve seals
  188. 1999 Seville Ignition DTC Help!
  189. Smoking Northstar?
  190. How long is your NS dipstick?
  191. weep holes
  192. engine swap for a 2001 dts
  193. P0741 - TCC System Stuck Off
  194. new Delco spark plug wires installed
  195. 1998 Deville overheating
  196. Help Having A Heart Attack! P039 / TRanny?
  197. N* programmer?
  198. Is it possible?
  199. Northstar Buick
  200. N* Runs Rough at Cold Start
  201. Bank 1 , 2 ??????
  202. Engine build
  203. P0300,p - Engine Misfire Detected 2002 deville, help please
  204. 2003 Deville with RWD
  205. Starter location
  206. Questions, Questions, and more Questions
  207. 93 sts traction disabled
  208. rental lincoln
  209. how to stay away from power loss
  210. 96 sts supercharger
  211. Are headgasket issues getting more common lately?
  212. 1998 Seville STS Chiptuning
  213. Tranny problems?
  214. Northstar Dyno Registry
  215. New Engine...climate control issues.
  216. Cryogenics
  217. My Photo Essay N* Head Gasket Repair Job
  218. Custom intake and nitrous
  219. 94 concours
  220. SLS Y-Code Engine: Do I need to replace the EGR Valve? PCM?
  221. service manual
  222. Possible Applications for Northstar?
  223. Need help....PLZ!!
  224. so i got a few PCM codes
  225. GM's Veiw on Fuel and Oil Additives
  226. How do I Reset the Change Oil Message?
  227. so when i went to pull codes, it just said all
  228. T061 T083
  229. 97 Deville No Longer Starts
  230. help on my 99' seville sls
  231. Starting issue
  232. 97 SLS Motor Swap to an 03. Is it possible?
  233. head
  234. 99 SLS and Straight DexCool rather than 50/50
  235. No 1st Gear!!!
  236. Cheap Northstar in NH, 35,000 miles
  237. Steering Wheel puff of smoke
  238. on the tranny subject
  239. Talk about luck!!
  240. New motor runs a lil hotter?
  241. o2 sensor question
  242. What is HOT for a blown head gasket
  243. Need Help Info On Where To Buy Rebuilt Engine
  244. compatable parts
  245. NorthStar swap wiring harness
  246. product question
  247. How long do you think caddy will keep the N*?
  248. SS Fuel Rail Removal
  249. Would this be a wise choice? [CAI] on a 184,000 mile northstar
  250. E85 on northstar ???