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View Full Version : Northstar Engines and System Technical Discussion



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  1. P0300,p - Engine Misfire Detected 2002 deville, help please
  2. Engine build
  3. Bank 1 , 2 ??????
  4. N* Runs Rough at Cold Start
  5. Northstar Buick
  6. Is it possible?
  7. N* programmer?
  8. Help Having A Heart Attack! P039 / TRanny?
  9. 1998 Deville overheating
  10. new Delco spark plug wires installed
  11. P0741 - TCC System Stuck Off
  12. engine swap for a 2001 dts
  13. weep holes
  14. How long is your NS dipstick?
  15. Smoking Northstar?
  16. 1999 Seville Ignition DTC Help!
  17. valve seals
  18. 99 STS Turbo charged video
  19. The End
  20. 1st gear WOT
  21. Crank sensor tech 95 sts
  22. P0147 - Heated Oxygen Sensor (HO2S) Heater Performance Bank 1 Sensor 3 - overheating
  23. Thanks for nothing, Northstar.
  24. How can I clean the Mass Air Flow??
  25. 2002 deville/dhs engine trouble
  26. Whirring/grinding That's Speed Sensitive
  27. 2003 DHS - Sluggish - EGR?
  28. 94 Northstar Flexplate knocking noice. HELP!!
  29. Does vacuum sound from Surge Tank equal head gaskets?
  30. anyone ever use HEAL-A-SEAL
  31. Engine Oil Myths including ZDP by GM
  32. Using synthetic oil in a Northstar-Why does Cadillac recommend 10W30?
  33. What Spark Plugs for a 1999 DeVille Northstar?
  34. Cam numbers?
  35. Drive vs 3 What's better???
  36. Help with this code...97 Cadillac deville
  37. questions about PC0300 code on 96 deville
  38. Arizona Cadillac Owners Cheap Northstar Engine
  39. 1997 Seville SLS
  40. Where is my IAT Sensor located? 99 sts
  41. Unbolting "beauty cover" on a 1999 Deville What GIVES
  42. Mobil 1 5W30 meets GM spec 4718M but Mobil 1 10W30 DOES NOT. WHAT GIVES?
  43. 2002 STC - Front Engine Mount Broken
  44. strange rumble sound during hard acceleration.
  45. IAC valve
  46. 2003 Sts 0-70
  47. What is the Northstar suppose to sound like?
  48. P0741 TCC Stuck ON, tried much, what next
  49. Engine stutter/punch
  50. HELP!! Fuel Rail Recall Problems 1996 Seville
  51. High idle/ IAC clicking?
  52. check coolant light on???
  53. Headgasket Leaks & Repairs
  54. 97 Etc N* Head Gasket Project
  55. 1st time motor pull for HG on 99 N*, some questions
  56. Need help removing 99 STS northstar motor
  57. misfire at idle
  58. 1994 DeVille Concourse
  59. engine compatibility
  60. Crankshaft position sensor
  61. Need Some Code Help 02 Seville
  62. Intake manifold crack?
  63. HELP- Dropped a bolt in the intake valley
  64. '98 STS valve cover
  65. upgrading 94 concours
  66. 94 STS starts only if pressing gas, idles rough, dies after a couple minutes
  67. 10w40 in N*
  68. Northstar Modifications
  69. 02 STS uses tons of oil
  70. hypothetically speaking
  71. RTV Silicone on Transmission Side Cover?
  72. I have a cracked block, what next?
  73. Fuel Line Leak
  74. Car runs hot but doesn't over heat
  75. bottom end problems??
  76. GM MAF sensor information and Discussion
  77. Heater Core Leak/ Need Some Help, Please
  78. Sts engine has this knocking sound
  79. 1995 STS Cooling problems?
  80. PC0327 - 96DeVille
  81. How can u save gas on a 99 deville?
  82. 99 Head Gasket Warranty?
  83. Tell me about Force Motors/pressure control solenoids
  84. Iradium spark plugs for 99deville? Better or worse? What the best plug & wires??
  85. What's involved to drop the oil pan?
  86. No Heat at Idle
  87. 93/94 engines
  88. Northstar shifting past redline
  89. Whats the easy way to change the alternator on a Northstar? (99 Deville)
  90. Removing EGR on a'96 SLS
  91. Need a VIN to a STS with the Z(W) option, I have the option but I don't like the Euro
  92. Serpentine belt
  93. Engine stopped at the end of an exit ramp Any IDEAS WHY?
  94. Is It Possible To???
  95. 95 northstar tranny
  96. this is not an arguement thread for oil !
  97. Is it me, or are alot of N*s having cracked blocks
  98. white smoke n hp loss
  99. Where is the main engine to body ground?
  100. Getting Screwed
  101. Can i use synthetic oil in northstar?
  102. 94 northstar starting problem
  103. 97 STS vs. The drag strip
  104. Rebuilt N*
  105. How can you tell if your HG's are shot?
  106. O2 Sensor Questions
  107. how to search forums..and cpk sensor question (2000 cadillac stalling)
  108. Why is my '96 Northstar now using oil?
  109. Crankshaft & Cam sensors questions
  110. Sticking gas pedal????, high idle all of the sudden???? What do I check??? PLZ HELP!!
  111. torker
  112. FPR replacement on 94 N*
  113. quote???
  114. NEED HELP - HAVE CODES P1416 and P0101
  115. Idea for vehicle to do Northstar swap on.
  116. MSD ignition
  117. 95 STS Cooling System Quirks
  118. intake manifold exploded/hole after backfire??
  119. What's your preference for plugs and wires ?
  120. Looking for '98 ETC mods
  121. 94 ETC no shift, wont idle
  122. P0121, P0507 High Idle???
  123. 94 N* EGR valve ?? Engine stumbles.
  124. How do you disable the traction control perm without having to press the button in...
  125. I have a question about cold startswith N*??
  126. !996 Deville help troubleshoot
  127. White Smoke coming from front of car
  128. 2001 Cadillac SLS LD8 Bore-increase
  129. 2nd annual midwest meet !
  130. Engine Help!!!
  131. Sick Tranny?
  132. Need help - going to see a 98 Seville STS on Sat, what do I check?
  133. Got my 05 Deville back from Dealer!! and extra part for sale.
  134. New HG Installed on a 99, Pings on Start Up?
  135. Need help on 98 Seville/Northstar
  136. Computer/wiring problems
  137. Obd I P046
  138. 1034-loss of PCM data
  139. 2000 Deville with northstar
  140. Got Code P1415 Please Help
  141. Difference between VIN Y and VIN 9
  142. labor cost to replace o2 sensor????
  143. Front Valvetrain Clacking
  144. Can anyone tell me whats wrong?
  145. Could it be the Water Pump Knocking
  146. 200 DeVille Blows hot air at low speed turns cold
  147. Northstar Valvetrain Clatter
  148. So, here are the symptoms, whats wrong
  149. looking for pictures of northstar valvetrain
  150. ? For Ewill or AJ
  151. LC3 FWD Swap?
  152. Those Damn HEAD GASKETS
  153. Missed one connection
  154. Thermagasket Does It Work???
  155. IAC Counts
  156. Fuel pressure regulator?
  157. 1996 Deville Troubleshoot update
  158. Bad Alternator?
  159. 2000 DeVille Overheating Update
  160. 99 Deville Northstar Overheating -wanting non contradicting answers
  161. symptoms of bolt failure/lifted heads
  162. Northstar Rod Spec's & 3.6L
  163. Need a reliable source for Northstar Torque specs
  164. L37 or LD8 ????
  165. very hard start in the cold on N*
  166. msd coil?
  167. seville with shifting problems 1rst > 2nd
  168. overheating problem
  169. Over-sized Northstar Pistons
  170. Loud Engine Whine
  171. 99 STS, almost working
  172. why wont my fans work?
  173. Changing the cams on an STS to the SLS Cams
  174. Check Gas Cap Message.
  175. Why didn't Cadillac make a larger displacement Northstar?
  176. help please
  177. New here need help
  178. AJ-Question
  179. Northstar dimensions
  180. Advice on leak detection kits please
  181. No start (cranks OK)
  182. head gasket seeping oil
  183. Overheating
  184. Dealer Flush
  185. Compressor/ Air Ride Help
  186. big problems on 97 deville>please help me
  187. Track Results and Video's
  188. 2000 Deville DTS Overheating
  189. po39 tcc vcc help
  190. roller lifters or flat tappet
  191. 99 sts stalling out
  192. Northstar Oil Leak
  193. 2000-2005 Headgasket...
  194. Cam Question For AJ or Ewill
  195. now mine STS too Broken HG :(
  196. Northstar mechanic
  197. Pinging above 3000RPM with 93 octane
  198. Anyone who can read motor serials get in here (calling AJ)
  199. Hey, all you guys, check radiator hoses
  200. 96 deville egr valve cleaning
  201. P0741 & P1860
  202. Questions about low-mile oft-stored '02 Eldorado
  203. Throttle Position Sensor 94 N* - how to replace?
  204. How hot can you go?
  205. Two 4.6 Northstar Motors What are they Worth?
  206. Can you name this Car?
  207. Problems with 02 DHS, need more opinions
  208. Removing the N* from an el do?
  209. Northstar Oil Pan Help Needed
  210. possible 1/2 case oil leak.....
  211. water pump tension pulley
  212. oilpan/trans pan gasket...
  213. Custom made 8.5mm MSD spark plug wires
  214. LD8 Engine issue (2005 Bonneville GXP)
  215. engine swap
  216. gasket questions on the northstar
  217. intermittent Bubbling noise in dashboard.. Any ideas?
  218. 96 Eldorado ABS and Traction Control TRBL
  219. Oil leak 2000 Deville
  220. AGAP Northstar reman engine NIGHTMARE
  221. head gasket blown replacing motor
  222. 97 Deville w/ N* Battery(?) problems
  223. Thermostat
  224. Pulling camshaft cover - can it be done w/out dropping engine?
  225. 98 Eldo Rebuilt Motor
  226. question about trans gasket
  227. Noise on Startup when Cold
  228. 2002 sts engine codes
  229. OBD II Manual
  230. No 24x Refrence Signal
  231. Transmission Force Motor 1994 Eodorado - Can it be done without pulling the trans?
  232. Strange Call
  233. best Seville STS to buy ???
  234. Ok Someone Please Help My 97 Deville Not Running.............
  235. 2005 STS 3.6L Engine Oil Sensors
  236. After Market Code Scanner
  237. Block Sealer??
  238. N* Camshaft Removal: Special Tools Required?
  239. 2001 STS engine knock
  240. northstar poor mileage
  241. Heater Fan
  242. 2002 DTS trouble
  243. White smoke in the exhaust which clears after idling 5 minutes
  244. Head Gaskets Failure 97 STS
  245. is it worth it?.
  246. Head Gasket replacement 97STS
  247. Timing and Octane....I searched.
  248. Plz Listen 2 My story Need Help ASAP
  249. Oil pressure light
  250. Recommndations for N* Tech in Boston/RI Area?