: Northstar Engines and System Technical Discussion



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  1. 93 octane + WOT = rattle?
  2. Drill Guide for Head Bolt Inserts
  3. Idle issue when cold
  4. 94 el dorado starter location
  5. 1-2 At 45 Now Instead Of 40?
  6. Northstar fuel rail redesign
  7. 95 Eldorado with disturbing sound...
  8. Deville 98 coolant
  9. Is this the beginning of the end for my STS?
  10. 1994 Deville con
  11. 01 Olds Aurora Question...
  12. Coolant overflow?
  13. Switching a 1998 Northstar with a 2005 ?
  14. What to do with my 2000 DTS?
  15. Oh
  16. Headgasket info?
  17. Blown Engine???
  18. Fuel Induction System Specs
  19. Car is over heating?
  20. '02 STS Drain Plug Issue
  21. Oil guzzling 2003 Deville Northstar V8
  22. Cracked Block, exterior, 1997 Northstar
  23. Coil Bank Problems
  24. balancer bolt
  25. 2000 DeVille Overheats
  26. sounds like harmonic balancer??
  27. Over heating
  28. MSD Plug wires
  29. Delphi/Packard vs Delco Plug Wires
  30. HG Failure, Round 2
  31. new fuel injector & upper engine cleaner
  32. Tranny Question
  33. Location of ALL o2 sensors
  34. Hey Guys
  35. 93 Eldorado Sport Coupe Vs Touring Coupe
  36. ac compressor problem???
  37. Combustion Leak Detection
  38. Po41 code set
  39. Porting the throttlebody
  40. Another 97 DeVille Overheating Issue
  41. Can '03 Seville display digital coolant temp reading?
  42. BARS Head Gasket Fix and Aux Fan control
  43. Whistling pressure relief on N* Intake Manifold???
  44. Who needs a Timesert kit- I have one!!
  45. where does this thing go (headgasket job)
  46. Hard Start
  47. any tips on removing coolant crossover?
  48. 1996 Deville Intake??
  49. Performing "block" test from Napa
  50. Service A/c and A/C compressor off
  51. draining trans fluid 4T80E
  52. no start lots of codes network ?
  53. engine swap
  54. 1993 to 1999 Cam Wear Fix
  55. 94 Eldo ETC
  56. Need diagnosis - 98 STS overheating
  57. Professional Coolant Flush
  58. 4T80-E transaxle
  59. Oil Adapter housing Problems :(
  60. Head gasket, possibly cracked block...
  61. etanol blend, what does it do to the n?
  62. Loaded '03 STS 103k great shape - Dealer says it's the head gaskets.
  63. Problem with my Fast Chip
  64. Is there a Northstar FAQ section?
  65. 97 sts auto radio shut off
  66. Severe engine miss at idle-dirty gas in filter
  67. How Do I Change the ignition switch
  68. Cadillac De Ville 1999 OverHeat
  69. NO START, but the battery is good
  70. STS "Limited to 90 Miles an Hour" Message
  71. 1997 STS Ghostly Noise from Vacuum Leak?
  72. 4T80E bellhousing: starter?
  73. Blown Head Gasket On A 97 Deville
  74. North Star & Transmission Issues
  75. Head Gaskets
  76. Oil Housing
  77. North Star & Transmission Issues
  78. 4t80e problems
  79. Reverse problem someone please help me please
  80. AC & Intake
  81. '99 El Dorado Trans Question 2
  82. '99 El Dorado Tranaxle Modulator Location and Replacement
  83. Compression and oil consumption
  84. Anyone sells lower temperature thermostats?
  85. 1996 Deville Trouble Codes--Help Me!
  86. Aftermarket coils
  87. 05 STS V8 pcm reprogramming?
  88. '99 El Dorado White Smoke 70 mph and up
  89. Decel Stall
  90. no crank
  91. Who wants headers?!?!
  92. replacing oil pressure sending unit
  93. Northstar intermittent heating problem
  94. Compressed Natural Gas
  95. Proper A/C Recharge Pressure Spec?
  96. Head Bolt Torque
  97. what to do with a code
  98. Need headgaskets replaced...Twin Cities, MN area...
  99. Help finding exterior ground location IC Module
  100. Ran out of gas - Now will not start
  101. Hard Starting N* And Unknown Code
  102. Just wanted to check on some codes P0171 and P0134
  103. Ignition Miss - '98 DeVille
  104. Oil Testing, laboratories, and Additives
  105. What timesert kit is this referencing?
  106. Block Test Confirms!...or ?
  107. 2000 Deville with Denso plugs
  108. VIN or other link to body stamped on block?
  109. Prevent head gasket failure
  110. 2000 DeVille Northstar Problem
  111. Previously Timeserted block?
  112. turbo charging a Northstar
  113. p1350 & p1375 codes?
  114. bad fuel economy, rough(er) idle, need help!
  115. What gets relearned after battery disconnect?
  116. idle speed control
  117. 99 Deville Hesitation during Acceleration
  118. strange noise please help
  119. What happen to my overdrive???????
  120. Northstar Overheating!!! HELP
  121. After Timesert HG Repair Service Schedule?
  122. Top engine compartment struts
  123. '01 Deville with Half case leak, any temp fixes/band-aides?
  124. crankshaft sensor location ?
  125. Anyone heard of this?
  126. Are All Xlr's The New Style Closed Deck?
  127. MAF Translator
  128. Are A & B Crankshaft Position Sensors the same sensor??
  129. How much bubbling in surge tank indicates bad head gasket?
  130. Sick Baby
  131. Jet Power Flow Mass Air Sensor
  132. Everything You ever Wanted To Know About Cooling System Sealant Tabs
  133. O2, IAT, MAF sensor reliability on 2000 N*?
  134. Another Successful Mod (albeit potentially destructive)
  135. Questions On Rebuilding a Northstar Engine
  136. eldorado1 (and others)...my brain is failing me...help!
  137. Kent-moore Inserts, Anyone Every Use Them?
  138. 1996 Eldorado Won't Start
  139. 93 STS Northstar wont start
  140. radiator hose sucking itself in after car cools off
  141. upper trans oil cooler hose leaking
  142. What to do with these? (headgasket help)
  143. Not Again
  144. How Much Coolant?!?!
  145. 99 STS Northstar and Trans axle Problem
  146. No access to PCM info via dashboard OBD?
  147. smoking engine after install
  148. Frenchy ask help for his cadillac sts
  149. Headgaskets And "time-serts"!?
  150. Rough runner when it rains. 93 n'star
  151. ~Cadillac Deville Concours 59,000 A DISASTER??~
  152. 93 Allante w/Northstar Tranny Issues
  153. What other engines fit a 1999 Cadillac sts?
  154. Best years for N* between 93 and 99
  155. Any possible options to fix this engine noise?
  156. P0171 to lean code?
  157. 98 Deville theft sytem problem??
  158. Leave no bolt behind - Transmission Case
  159. 2002 Deville HG Replacement
  160. 00 N* still rough idle after changing plenum, cleaning TB
  161. I broke a water pump pulley
  162. Catalytic Convertor Clogged
  163. OH no...another one!
  164. getting ready to start this hd job
  165. Looking for a 2000-2005 Deville/DHS
  166. Anyone Swapped a 4.4 SC Engine?
  167. power steering pressure hose
  168. Thinking of coming over to the N* camp....
  169. Main Bearing Cap Torque
  170. remote start diy <help please>
  171. Symptoms of broken motor mount (2000 STS) ??
  172. N* cams
  173. Check Gas Cap Code
  174. N* dress ups
  175. Fuel Cutoff For Z-rated Sts
  176. Possible Fuel issue?
  177. 2001 Deville thermostat
  178. Help!!!what Parts Do I Need For N*headgasket Replacements?
  179. Another overheater...
  180. Is it ok..........
  181. Engine oil level sensor leaking
  182. How to install Nitrous the correct way! I need input
  183. Are There any Hot Rodder's here?
  184. Lifter, Cam, Valve Issue? (Sounds like Chubby Ranger)
  185. going to attempt head gaskets
  186. 1993 Northstar Rough Idle
  187. check this out if you have had cooling system trouble ie headgaskets
  188. PCM 0101 code set on WOT
  189. 96 Cad DeVille Questions
  190. Need help on 98 cad seville sls
  191. cometic, felpro or gm oem! Head gasket survey.
  192. Thank You so much
  193. Help
  194. Look at these plugs
  195. Fi A/f Ratio
  196. N* Headgasket Replacement
  197. northstar eldorado swap
  198. new HG, coolant issues
  199. replaced hg, low oil pressure
  200. What else should I clean when replacing intake plenum?
  201. 94 STS N* Top End Oil leak
  202. 94 STS High HC at Idle
  203. Is this a cracked intake plenum? (see attached pics)
  204. spare parts after rebuild **HELP**
  205. New Bar's Leaks Product
  206. Newest Intake work...
  207. Headgaskets!
  208. Fuel pressure or pump problem? Need Help!
  209. northstar engine
  210. 2001 Seville dies out????
  211. My Head gasket job
  212. 2000 SLS uses 1qt oil every 500mi - Should I be worried???
  213. air filter
  214. Please help 1995 STS "Service Engine Soon" jumping out of gear?
  215. Northstar Rant
  216. A/C blowing warm air
  217. Sorry for the rant but early NS owners need to know
  218. sealant- case 1/2's
  219. 2000 N* Rough Idle in Seville STS
  220. 01 STS running rich
  221. Is car driveable with Blown HG?
  222. heating and a/c system please help
  223. clogged radiator?????
  224. Headgasket, or what?
  225. no spark
  226. how to replace motor mount on 97 deville northstar
  227. Which Northstar do I have?
  228. 94jN* What do I use for a sealant when I put the intake manifold back on?
  229. no spark
  230. Professionally Painted Northstar Engine Covers
  231. Reuse main bearings?
  232. Noise coming from LH head - valve?
  233. 94 N* Help white smoke out of exhaust
  234. Overheating mystery
  235. New Coolant
  236. PLEASE HELP!!! Stalling when warm and smoking alternator
  237. Car lunges forward when tapping gas
  238. 93, 94 or 95 Eldo worth buying?
  239. Does 2006 Dts Engines Have Headgasket Problems Also?
  240. misc questions
  241. northstar gone bad....AHHHHH
  242. camshaft sensor
  243. Replacing Cylinder Heads Project
  244. newest member of the headgasket club
  245. 1999 northstar warped heads
  246. Northstar engine swap
  247. p0340 camshaft position sensor
  248. northstar in a monte carlo
  249. could this be anything else?
  250. for under 8k would anybody buy a NS Caddy?