: Northstar Engines and System Technical Discussion



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  1. Ignition Module Pin Out
  2. HG or paranoia?
  3. 2000 SLS keeps stalling
  4. another n* head gasket question
  5. Do you know what this part is?
  6. N* dissassembled engine found
  7. This Is Not a Joke
  8. My Rough Idle Story, So Far...
  9. 02 SLS running rough after pulling air box silencer
  10. 97 SLS N* Overheating quickly
  11. '95 STS Stuck in 3rd Gear
  12. 98 Deville non-functional engine cooler fan
  13. Post up your NORTHSTAR GAS MILEAGE (CTY/HWY) PLZ!
  14. 300hp N* to a Base N*
  15. Added my 99 STS to the HeadGasket poll...
  16. ATTN: All Volant owners
  17. 93 octane + WOT = rattle?
  18. Drill Guide for Head Bolt Inserts
  19. Idle issue when cold
  20. 94 el dorado starter location
  21. 1-2 At 45 Now Instead Of 40?
  22. Northstar fuel rail redesign
  23. 95 Eldorado with disturbing sound...
  24. Deville 98 coolant
  25. Is this the beginning of the end for my STS?
  26. 1994 Deville con
  27. 01 Olds Aurora Question...
  28. Coolant overflow?
  29. Switching a 1998 Northstar with a 2005 ?
  30. What to do with my 2000 DTS?
  31. Oh
  32. Headgasket info?
  33. Blown Engine???
  34. Fuel Induction System Specs
  35. Car is over heating?
  36. '02 STS Drain Plug Issue
  37. Oil guzzling 2003 Deville Northstar V8
  38. Cracked Block, exterior, 1997 Northstar
  39. Coil Bank Problems
  40. balancer bolt
  41. 2000 DeVille Overheats
  42. sounds like harmonic balancer??
  43. Over heating
  44. MSD Plug wires
  45. Delphi/Packard vs Delco Plug Wires
  46. HG Failure, Round 2
  47. new fuel injector & upper engine cleaner
  48. Tranny Question
  49. Location of ALL o2 sensors
  50. Hey Guys
  51. 93 Eldorado Sport Coupe Vs Touring Coupe
  52. ac compressor problem???
  53. Combustion Leak Detection
  54. Po41 code set
  55. Porting the throttlebody
  56. Another 97 DeVille Overheating Issue
  57. Can '03 Seville display digital coolant temp reading?
  58. BARS Head Gasket Fix and Aux Fan control
  59. Whistling pressure relief on N* Intake Manifold???
  60. Who needs a Timesert kit- I have one!!
  61. where does this thing go (headgasket job)
  62. Hard Start
  63. any tips on removing coolant crossover?
  64. 1996 Deville Intake??
  65. Performing "block" test from Napa
  66. Service A/c and A/C compressor off
  67. draining trans fluid 4T80E
  68. no start lots of codes network ?
  69. engine swap
  70. 1993 to 1999 Cam Wear Fix
  71. 94 Eldo ETC
  72. Need diagnosis - 98 STS overheating
  73. Professional Coolant Flush
  74. 4T80-E transaxle
  75. Oil Adapter housing Problems :(
  76. Head gasket, possibly cracked block...
  77. etanol blend, what does it do to the n?
  78. Loaded '03 STS 103k great shape - Dealer says it's the head gaskets.
  79. Problem with my Fast Chip
  80. Is there a Northstar FAQ section?
  81. 97 sts auto radio shut off
  82. Severe engine miss at idle-dirty gas in filter
  83. How Do I Change the ignition switch
  84. Cadillac De Ville 1999 OverHeat
  85. NO START, but the battery is good
  86. STS "Limited to 90 Miles an Hour" Message
  87. 1997 STS Ghostly Noise from Vacuum Leak?
  88. 4T80E bellhousing: starter?
  89. Blown Head Gasket On A 97 Deville
  90. North Star & Transmission Issues
  91. Head Gaskets
  92. Oil Housing
  93. North Star & Transmission Issues
  94. 4t80e problems
  95. Reverse problem someone please help me please
  96. AC & Intake
  97. '99 El Dorado Trans Question 2
  98. '99 El Dorado Tranaxle Modulator Location and Replacement
  99. Compression and oil consumption
  100. Anyone sells lower temperature thermostats?
  101. 1996 Deville Trouble Codes--Help Me!
  102. Aftermarket coils
  103. 05 STS V8 pcm reprogramming?
  104. '99 El Dorado White Smoke 70 mph and up
  105. Decel Stall
  106. no crank
  107. Who wants headers?!?!
  108. replacing oil pressure sending unit
  109. Northstar intermittent heating problem
  110. Compressed Natural Gas
  111. Proper A/C Recharge Pressure Spec?
  112. Northstar head bolt torque - and later update
  113. what to do with a code
  114. Need headgaskets replaced...Twin Cities, MN area...
  115. Help finding exterior ground location IC Module
  116. Ran out of gas - Now will not start
  117. Hard Starting N* And Unknown Code
  118. Just wanted to check on some codes P0171 and P0134
  119. Ignition Miss - '98 DeVille
  120. Oil Testing, laboratories, and Additives
  121. What timesert kit is this referencing?
  122. Block Test Confirms!...or ?
  123. 2000 Deville with Denso plugs
  124. VIN or other link to body stamped on block?
  125. Prevent head gasket failure
  126. 2000 DeVille Northstar Problem
  127. Previously Timeserted block?
  128. turbo charging a Northstar
  129. p1350 & p1375 codes?
  130. bad fuel economy, rough(er) idle, need help!
  131. What gets relearned after battery disconnect?
  132. idle speed control
  133. 99 Deville Hesitation during Acceleration
  134. strange noise please help
  135. What happen to my overdrive???????
  136. Northstar Overheating!!! HELP
  137. After Timesert HG Repair Service Schedule?
  138. Top engine compartment struts
  139. '01 Deville with Half case leak, any temp fixes/band-aides?
  140. crankshaft sensor location ?
  141. Anyone heard of this?
  142. Are All Xlr's The New Style Closed Deck?
  143. MAF Translator
  144. Are A & B Crankshaft Position Sensors the same sensor??
  145. How much bubbling in surge tank indicates bad head gasket?
  146. Sick Baby
  147. Jet Power Flow Mass Air Sensor
  148. Everything You ever Wanted To Know About Cooling System Sealant Tabs
  149. O2, IAT, MAF sensor reliability on 2000 N*?
  150. Another Successful Mod (albeit potentially destructive)
  151. Questions On Rebuilding a Northstar Engine
  152. eldorado1 (and others)...my brain is failing me...help!
  153. Kent-moore Inserts, Anyone Every Use Them?
  154. 1996 Eldorado Won't Start
  155. 93 STS Northstar wont start
  156. radiator hose sucking itself in after car cools off
  157. upper trans oil cooler hose leaking
  158. What to do with these? (headgasket help)
  159. Not Again
  160. How Much Coolant?!?!
  161. 99 STS Northstar and Trans axle Problem
  162. No access to PCM info via dashboard OBD?
  163. smoking engine after install
  164. Frenchy ask help for his cadillac sts
  165. Headgaskets And "time-serts"!?
  166. Rough runner when it rains. 93 n'star
  167. ~Cadillac Deville Concours 59,000 A DISASTER??~
  168. 93 Allante w/Northstar Tranny Issues
  169. What other engines fit a 1999 Cadillac sts?
  170. Best years for N* between 93 and 99
  171. Any possible options to fix this engine noise?
  172. P0171 to lean code?
  173. 98 Deville theft sytem problem??
  174. Leave no bolt behind - Transmission Case
  175. 2002 Deville HG Replacement
  176. 00 N* still rough idle after changing plenum, cleaning TB
  177. I broke a water pump pulley
  178. Catalytic Convertor Clogged
  179. OH no...another one!
  180. getting ready to start this hd job
  181. Looking for a 2000-2005 Deville/DHS
  182. Anyone Swapped a 4.4 SC Engine?
  183. power steering pressure hose
  184. Thinking of coming over to the N* camp....
  185. Main Bearing Cap Torque
  186. remote start diy <help please>
  187. Symptoms of broken motor mount (2000 STS) ??
  188. N* cams
  189. Check Gas Cap Code
  190. N* dress ups
  191. Fuel Cutoff For Z-rated Sts
  192. Possible Fuel issue?
  193. 2001 Deville thermostat
  194. Help!!!what Parts Do I Need For N*headgasket Replacements?
  195. Another overheater...
  196. Is it ok..........
  197. Engine oil level sensor leaking
  198. How to install Nitrous the correct way! I need input
  199. Are There any Hot Rodder's here?
  200. Lifter, Cam, Valve Issue? (Sounds like Chubby Ranger)
  201. going to attempt head gaskets
  202. 1993 Northstar Rough Idle
  203. check this out if you have had cooling system trouble ie headgaskets
  204. PCM 0101 code set on WOT
  205. 96 Cad DeVille Questions
  206. Need help on 98 cad seville sls
  207. cometic, felpro or gm oem! Head gasket survey.
  208. Thank You so much
  209. Help
  210. Look at these plugs
  211. Fi A/f Ratio
  212. N* Headgasket Replacement
  213. northstar eldorado swap
  214. new HG, coolant issues
  215. replaced hg, low oil pressure
  216. What else should I clean when replacing intake plenum?
  217. 94 STS N* Top End Oil leak
  218. 94 STS High HC at Idle
  219. Is this a cracked intake plenum? (see attached pics)
  220. spare parts after rebuild **HELP**
  221. New Bar's Leaks Product
  222. Newest Intake work...
  223. Headgaskets!
  224. Fuel pressure or pump problem? Need Help!
  225. northstar engine
  226. 2001 Seville dies out????
  227. My Head gasket job
  228. 2000 SLS uses 1qt oil every 500mi - Should I be worried???
  229. air filter
  230. Please help 1995 STS "Service Engine Soon" jumping out of gear?
  231. Northstar Rant
  232. A/C blowing warm air
  233. Sorry for the rant but early NS owners need to know
  234. sealant- case 1/2's
  235. 2000 N* Rough Idle in Seville STS
  236. 01 STS running rich
  237. Is car driveable with Blown HG?
  238. heating and a/c system please help
  239. clogged radiator?????
  240. Headgasket, or what?
  241. no spark
  242. how to replace motor mount on 97 deville northstar
  243. Which Northstar do I have?
  244. 94jN* What do I use for a sealant when I put the intake manifold back on?
  245. no spark
  246. Professionally Painted Northstar Engine Covers
  247. Reuse main bearings?
  248. Noise coming from LH head - valve?
  249. 94 N* Help white smoke out of exhaust
  250. Overheating mystery