: Northstar Engines and System Technical Discussion



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