: Northstar Engines and System Technical Discussion



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