: Northstar Engines and System Technical Discussion



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  1. 2006 Dts Rough Idle On Morning Start Up?
  2. What Causes Heagaskets To Blow?
  3. Blown Engine
  4. Air ram cones
  5. northstar engine knock help!
  6. Help identify foreign object jamming intake valve open
  7. 01 Dts Rough Idle
  8. dangrieco
  9. Spark plugs ?
  10. changing the governor
  11. Delaney Power Extractor Engine
  12. 94 cadillac sts ECM install
  13. Anyone here in Michigan
  14. Where to find new camshafts?
  15. Please don't flame the noob...codes and problem
  16. Real octane booster?
  17. Motor for 96 STS????
  18. What do you think of this? ECU Modifier
  19. Root Cause of Head gasket Failure and a Fix?
  20. Wont start when its cold
  21. Cadillac sts '94 problem
  22. 1995 STS sudden problem
  23. Oil burning TSB.. I know this has been talked about before
  24. Oil Under The Beauty Cover
  25. 97 STS Starting after dead battery
  26. Can you run your car with water?
  27. New to the site, wondering about repairs
  28. Recommndations for N* Tech in Boston/RI Area?
  29. Oil pressure light
  30. Plz Listen 2 My story Need Help ASAP
  31. Timing and Octane....I searched.
  32. Head Gasket replacement 97STS
  33. is it worth it?.
  34. Head Gaskets Failure 97 STS
  35. White smoke in the exhaust which clears after idling 5 minutes
  36. 2002 DTS trouble
  37. Heater Fan
  38. northstar poor mileage
  39. 2001 STS engine knock
  40. N* Camshaft Removal: Special Tools Required?
  41. Block Sealer??
  42. After Market Code Scanner
  43. 2005 STS 3.6L Engine Oil Sensors
  44. Ok Someone Please Help My 97 Deville Not Running.............
  45. best Seville STS to buy ???
  46. Strange Call
  47. Transmission Force Motor 1994 Eodorado - Can it be done without pulling the trans?
  48. No 24x Refrence Signal
  49. OBD II Manual
  50. 2002 sts engine codes
  51. Noise on Startup when Cold
  52. question about trans gasket
  53. 98 Eldo Rebuilt Motor
  54. Pulling camshaft cover - can it be done w/out dropping engine?
  55. Thermostat
  56. 97 Deville w/ N* Battery(?) problems
  57. head gasket blown replacing motor
  58. AGAP Northstar reman engine NIGHTMARE
  59. Oil leak 2000 Deville
  60. 96 Eldorado ABS and Traction Control TRBL
  61. intermittent Bubbling noise in dashboard.. Any ideas?
  62. gasket questions on the northstar
  63. engine swap
  64. LD8 Engine issue (2005 Bonneville GXP)
  65. Custom made 8.5mm MSD spark plug wires
  66. oilpan/trans pan gasket...
  67. water pump tension pulley
  68. possible 1/2 case oil leak.....
  69. Northstar Oil Pan Help Needed
  70. Removing the N* from an el do?
  71. Problems with 02 DHS, need more opinions
  72. Can you name this Car?
  73. Two 4.6 Northstar Motors What are they Worth?
  74. How hot can you go?
  75. Throttle Position Sensor 94 N* - how to replace?
  76. Questions about low-mile oft-stored '02 Eldorado
  77. P0741 & P1860
  78. 96 deville egr valve cleaning
  79. Hey, all you guys, check radiator hoses
  80. Anyone who can read motor serials get in here (calling AJ)
  81. Pinging above 3000RPM with 93 octane
  82. Northstar mechanic
  83. now mine STS too Broken HG :(
  84. Cam Question For AJ or Ewill
  85. 2000-2005 Headgasket...
  86. Northstar Oil Leak
  87. 99 sts stalling out
  88. roller lifters or flat tappet
  89. po39 tcc vcc help
  90. 2000 Deville DTS Overheating
  91. Track Results and Video's
  92. big problems on 97 deville>please help me
  93. Compressor/ Air Ride Help
  94. Dealer Flush
  95. Overheating
  96. head gasket seeping oil
  97. No start (cranks OK)
  98. Advice on leak detection kits please
  99. Northstar dimensions
  100. AJ-Question
  101. New here need help
  102. help please
  103. Why didn't Cadillac make a larger displacement Northstar?
  104. Check Gas Cap Message.
  105. Changing the cams on an STS to the SLS Cams
  106. why wont my fans work?
  107. 99 STS, almost working
  108. Loud Engine Whine
  109. Over-sized Northstar Pistons
  110. overheating problem
  111. seville with shifting problems 1rst > 2nd
  112. msd coil?
  113. very hard start in the cold on N*
  114. L37 or LD8 ????
  115. Need a reliable source for Northstar Torque specs
  116. Northstar Rod Spec's & 3.6L
  117. symptoms of bolt failure/lifted heads
  118. 99 Deville Northstar Overheating -wanting non contradicting answers
  119. 2000 DeVille Overheating Update
  120. Bad Alternator?
  121. 1996 Deville Troubleshoot update
  122. Fuel pressure regulator?
  123. IAC Counts
  124. Thermagasket Does It Work???
  125. Missed one connection
  126. Those Damn HEAD GASKETS
  127. LC3 FWD Swap?
  128. ? For Ewill or AJ
  129. looking for pictures of northstar valvetrain
  130. So, here are the symptoms, whats wrong
  131. Northstar Valvetrain Clatter
  132. 200 DeVille Blows hot air at low speed turns cold
  133. Could it be the Water Pump Knocking
  134. Can anyone tell me whats wrong?
  135. Front Valvetrain Clacking
  136. labor cost to replace o2 sensor????
  137. Difference between VIN Y and VIN 9
  138. Got Code P1415 Please Help
  139. 2000 Deville with northstar
  140. 1034-loss of PCM data
  141. Obd I P046
  142. Computer/wiring problems
  143. Need help on 98 Seville/Northstar
  144. New HG Installed on a 99, Pings on Start Up?
  145. Got my 05 Deville back from Dealer!! and extra part for sale.
  146. Need help - going to see a 98 Seville STS on Sat, what do I check?
  147. Sick Tranny?
  148. Engine Help!!!
  149. 2nd annual midwest meet !
  150. 2001 Cadillac SLS LD8 Bore-increase
  151. White Smoke coming from front of car
  152. !996 Deville help troubleshoot
  153. I have a question about cold startswith N*??
  154. How do you disable the traction control perm without having to press the button in...
  155. 94 N* EGR valve ?? Engine stumbles.
  156. P0121, P0507 High Idle???
  157. 94 ETC no shift, wont idle
  158. Looking for '98 ETC mods
  159. What's your preference for plugs and wires ?
  160. intake manifold exploded/hole after backfire??
  161. 95 STS Cooling System Quirks
  162. MSD ignition
  163. Idea for vehicle to do Northstar swap on.
  164. NEED HELP - HAVE CODES P1416 and P0101
  165. quote???
  166. FPR replacement on 94 N*
  167. torker
  168. Sticking gas pedal????, high idle all of the sudden???? What do I check??? PLZ HELP!!
  169. Crankshaft & Cam sensors questions
  170. Why is my '96 Northstar now using oil?
  171. how to search forums..and cpk sensor question (2000 cadillac stalling)
  172. O2 Sensor Questions
  173. How can you tell if your HG's are shot?
  174. Rebuilt N*
  175. 97 STS vs. The drag strip
  176. 94 northstar starting problem
  177. Can i use synthetic oil in northstar?
  178. Getting Screwed
  179. Where is the main engine to body ground?
  180. white smoke n hp loss
  181. Is it me, or are alot of N*s having cracked blocks
  182. this is not an arguement thread for oil !
  183. 95 northstar tranny
  184. Is It Possible To???
  185. Engine stopped at the end of an exit ramp Any IDEAS WHY?
  186. Serpentine belt
  187. Need a VIN to a STS with the Z(W) option, I have the option but I don't like the Euro
  188. Removing EGR on a'96 SLS
  189. Whats the easy way to change the alternator on a Northstar? (99 Deville)
  190. Northstar shifting past redline
  191. 93/94 engines
  192. No Heat at Idle
  193. What's involved to drop the oil pan?
  194. Iradium spark plugs for 99deville? Better or worse? What the best plug & wires??
  195. Tell me about Force Motors/pressure control solenoids
  196. 99 Head Gasket Warranty?
  197. How can u save gas on a 99 deville?
  198. PC0327 - 96DeVille
  199. 1995 STS Cooling problems?
  200. Sts engine has this knocking sound
  201. Heater Core Leak/ Need Some Help, Please
  202. GM MAF sensor information and Discussion
  203. bottom end problems??
  204. Car runs hot but doesn't over heat
  205. Fuel Line Leak
  206. I have a cracked block, what next?
  207. RTV Silicone on Transmission Side Cover?
  208. hypothetically speaking
  209. 02 STS uses tons of oil
  210. Northstar Modifications
  211. 10w40 in N*
  212. 94 STS starts only if pressing gas, idles rough, dies after a couple minutes
  213. upgrading 94 concours
  214. '98 STS valve cover
  215. HELP- Dropped a bolt in the intake valley
  216. Intake manifold crack?
  217. Need Some Code Help 02 Seville
  218. Crankshaft position sensor
  219. engine compatibility
  220. 1994 DeVille Concourse
  221. misfire at idle
  222. Need help removing 99 STS northstar motor
  223. 1st time motor pull for HG on 99 N*, some questions
  224. 97 Etc N* Head Gasket Project
  225. Headgasket Leaks & Repairs
  226. check coolant light on???
  227. High idle/ IAC clicking?
  228. HELP!! Fuel Rail Recall Problems 1996 Seville
  229. Engine stutter/punch
  230. P0741 TCC Stuck ON, tried much, what next
  231. What is the Northstar suppose to sound like?
  232. 2003 Sts 0-70
  233. IAC valve
  234. strange rumble sound during hard acceleration.
  235. 2002 STC - Front Engine Mount Broken
  236. Mobil 1 5W30 meets GM spec 4718M but Mobil 1 10W30 DOES NOT. WHAT GIVES?
  237. Unbolting "beauty cover" on a 1999 Deville What GIVES
  238. Where is my IAT Sensor located? 99 sts
  239. 1997 Seville SLS
  240. Arizona Cadillac Owners Cheap Northstar Engine
  241. questions about PC0300 code on 96 deville
  242. Help with this code...97 Cadillac deville
  243. Drive vs 3 What's better???
  244. Cam numbers?
  245. What Spark Plugs for a 1999 DeVille Northstar?
  246. Using synthetic oil in a Northstar-Why does Cadillac recommend 10W30?
  247. Engine Oil Myths including ZDP by GM
  248. anyone ever use HEAL-A-SEAL
  249. Does vacuum sound from Surge Tank equal head gaskets?
  250. 94 Northstar Flexplate knocking noice. HELP!!