: Northstar Engines and System Technical Discussion



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