: Northstar Engines and System Technical Discussion



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  1. seriously clogged purge line! need help!
  2. Almost Overheating - is this Head Gasket ?
  3. Could Use Some Insight
  4. OBD Code E-119
  5. Deville Motor Swap 1997 to 1997 sts
  6. Took on my friend's LS1 *VID*
  7. 94 northstar cooling issue
  8. OIL FILTER/oil/AIR FILTER? What do you use on your N*?
  9. Time-sert kit
  10. 95 SLS Water Pump Removal Impact Wrench or Not?
  11. 2000 Deville Mechanical Issues *HELP*
  12. Can this be possible?
  13. looking for spark plugs
  14. need correct belt size to bypass ac comp on 97 concours
  15. DYI or NOT, Blown waterpump housing gasket
  16. Northstar 4.0 Aurora 97 interchangability
  17. Programmable ECU for STS 4.6L?
  18. Rough Idle Question For Ewill3rd
  19. Bought a Timesert kit on Ebay, what else do I need to install Norms inserts?
  20. loss of power overheating issues HELP
  21. What Anti-Freeze
  22. 50 Deville - Code = P0300 current
  23. New Owner/Member w/ n*star question
  24. P0300 - Timing Off
  25. intake gaskets
  26. Northstar 4.6 Coolant loss - but only under load
  27. 2000 deville or 1997 eldorado
  28. Northstar head gasket failures
  29. GM Top Engine Cleaner
  30. Coolent Temp
  31. Going to the track
  32. N* cylinder numbers
  33. Witnessed some component fail, what to do?
  34. Overhaeting Or Not or Maybe PLEASE HELP
  35. Non ACDelco Part?
  36. Electrical Problems With 94' Seville
  37. No HI cooling fan speed?
  38. Where to cut?? cradle bolt just spins
  39. engine ID
  40. Timing Chain Slack
  41. 2000 Deville Head gasket?
  42. 2000 Dts Front Engine Mount - Best Way To Change?
  43. coolant level deville 98
  44. Drag Race Calculator...
  45. engine swap pipe dreams
  46. Ingnition MAx Fuse burns out to stall 99 deville
  47. 98 sts what fits
  48. Northstar engine performance in my 01' DeVille DHS
  49. starter woes
  50. Intermittent spark loss on random coils 94' STS
  51. Disable the SIR
  52. Can you pull the front head with the engine in the car?
  53. Mechanics - Chicago area - Help
  54. Northstar Plenum Woes
  55. How to change pulley
  56. Engine to trans. bracket locations
  57. Is this an LT5
  58. 2001 Northstar in a 93 sts?
  59. no spark
  60. 1994 Cadillac STS
  61. Manifold or water pump causing overheating???
  62. Northstar crank sensor locations
  63. Quick engine swap question
  64. Solid Front Engine Mounts
  65. 98 deville no blower motor
  66. Still overheating
  67. Serpentine Belt
  68. couple of cooling sistem questions
  69. How many gallons Dex-Cool will I need.....
  70. oil can lite on and engine shuts down
  71. cat recomendations
  72. Therma Gasket Fixed My Head Leak
  73. Ignition Module Pin Out
  74. HG or paranoia?
  75. 2000 SLS keeps stalling
  76. another n* head gasket question
  77. Do you know what this part is?
  78. N* dissassembled engine found
  79. This Is Not a Joke
  80. My Rough Idle Story, So Far...
  81. 02 SLS running rough after pulling air box silencer
  82. 97 SLS N* Overheating quickly
  83. '95 STS Stuck in 3rd Gear
  84. 98 Deville non-functional engine cooler fan
  85. Post up your NORTHSTAR GAS MILEAGE (CTY/HWY) PLZ!
  86. 300hp N* to a Base N*
  87. Added my 99 STS to the HeadGasket poll...
  88. ATTN: All Volant owners
  89. 93 octane + WOT = rattle?
  90. Drill Guide for Head Bolt Inserts
  91. Idle issue when cold
  92. 94 el dorado starter location
  93. 1-2 At 45 Now Instead Of 40?
  94. Northstar fuel rail redesign
  95. 95 Eldorado with disturbing sound...
  96. Deville 98 coolant
  97. Is this the beginning of the end for my STS?
  98. 1994 Deville con
  99. 01 Olds Aurora Question...
  100. Coolant overflow?
  101. Switching a 1998 Northstar with a 2005 ?
  102. What to do with my 2000 DTS?
  103. Oh
  104. Headgasket info?
  105. Blown Engine???
  106. Fuel Induction System Specs
  107. Car is over heating?
  108. '02 STS Drain Plug Issue
  109. Oil guzzling 2003 Deville Northstar V8
  110. Cracked Block, exterior, 1997 Northstar
  111. Coil Bank Problems
  112. balancer bolt
  113. 2000 DeVille Overheats
  114. sounds like harmonic balancer??
  115. Over heating
  116. MSD Plug wires
  117. Delphi/Packard vs Delco Plug Wires
  118. HG Failure, Round 2
  119. new fuel injector & upper engine cleaner
  120. Tranny Question
  121. Location of ALL o2 sensors
  122. Hey Guys
  123. 93 Eldorado Sport Coupe Vs Touring Coupe
  124. ac compressor problem???
  125. Combustion Leak Detection
  126. Po41 code set
  127. Porting the throttlebody
  128. Another 97 DeVille Overheating Issue
  129. Can '03 Seville display digital coolant temp reading?
  130. BARS Head Gasket Fix and Aux Fan control
  131. Whistling pressure relief on N* Intake Manifold???
  132. Who needs a Timesert kit- I have one!!
  133. where does this thing go (headgasket job)
  134. Hard Start
  135. any tips on removing coolant crossover?
  136. 1996 Deville Intake??
  137. Performing "block" test from Napa
  138. Service A/c and A/C compressor off
  139. draining trans fluid 4T80E
  140. no start lots of codes network ?
  141. engine swap
  142. 1993 to 1999 Cam Wear Fix
  143. 94 Eldo ETC
  144. Need diagnosis - 98 STS overheating
  145. Professional Coolant Flush
  146. 4T80-E transaxle
  147. Oil Adapter housing Problems :(
  148. Head gasket, possibly cracked block...
  149. etanol blend, what does it do to the n?
  150. Loaded '03 STS 103k great shape - Dealer says it's the head gaskets.
  151. Problem with my Fast Chip
  152. Is there a Northstar FAQ section?
  153. 97 sts auto radio shut off
  154. Severe engine miss at idle-dirty gas in filter
  155. How Do I Change the ignition switch
  156. Cadillac De Ville 1999 OverHeat
  157. NO START, but the battery is good
  158. STS "Limited to 90 Miles an Hour" Message
  159. 1997 STS Ghostly Noise from Vacuum Leak?
  160. 4T80E bellhousing: starter?
  161. Blown Head Gasket On A 97 Deville
  162. North Star & Transmission Issues
  163. Head Gaskets
  164. Oil Housing
  165. North Star & Transmission Issues
  166. 4t80e problems
  167. Reverse problem someone please help me please
  168. AC & Intake
  169. '99 El Dorado Trans Question 2
  170. '99 El Dorado Tranaxle Modulator Location and Replacement
  171. Compression and oil consumption
  172. Anyone sells lower temperature thermostats?
  173. 1996 Deville Trouble Codes--Help Me!
  174. Aftermarket coils
  175. 05 STS V8 pcm reprogramming?
  176. '99 El Dorado White Smoke 70 mph and up
  177. Decel Stall
  178. no crank
  179. Who wants headers?!?!
  180. replacing oil pressure sending unit
  181. Northstar intermittent heating problem
  182. Compressed Natural Gas
  183. Proper A/C Recharge Pressure Spec?
  184. Northstar head bolt torque - and later update
  185. what to do with a code
  186. Need headgaskets replaced...Twin Cities, MN area...
  187. Help finding exterior ground location IC Module
  188. Ran out of gas - Now will not start
  189. Hard Starting N* And Unknown Code
  190. Just wanted to check on some codes P0171 and P0134
  191. Ignition Miss - '98 DeVille
  192. Oil Testing, laboratories, and Additives
  193. What timesert kit is this referencing?
  194. Block Test Confirms!...or ?
  195. 2000 Deville with Denso plugs
  196. VIN or other link to body stamped on block?
  197. Prevent head gasket failure
  198. 2000 DeVille Northstar Problem
  199. Previously Timeserted block?
  200. turbo charging a Northstar
  201. p1350 & p1375 codes?
  202. bad fuel economy, rough(er) idle, need help!
  203. What gets relearned after battery disconnect?
  204. idle speed control
  205. 99 Deville Hesitation during Acceleration
  206. strange noise please help
  207. What happen to my overdrive???????
  208. Northstar Overheating!!! HELP
  209. After Timesert HG Repair Service Schedule?
  210. Top engine compartment struts
  211. '01 Deville with Half case leak, any temp fixes/band-aides?
  212. crankshaft sensor location ?
  213. Anyone heard of this?
  214. Are All Xlr's The New Style Closed Deck?
  215. MAF Translator
  216. Are A & B Crankshaft Position Sensors the same sensor??
  217. How much bubbling in surge tank indicates bad head gasket?
  218. Sick Baby
  219. Jet Power Flow Mass Air Sensor
  220. Everything You ever Wanted To Know About Cooling System Sealant Tabs
  221. O2, IAT, MAF sensor reliability on 2000 N*?
  222. Another Successful Mod (albeit potentially destructive)
  223. Questions On Rebuilding a Northstar Engine
  224. eldorado1 (and others)...my brain is failing me...help!
  225. Kent-moore Inserts, Anyone Every Use Them?
  226. 1996 Eldorado Won't Start
  227. 93 STS Northstar wont start
  228. radiator hose sucking itself in after car cools off
  229. upper trans oil cooler hose leaking
  230. What to do with these? (headgasket help)
  231. Not Again
  232. How Much Coolant?!?!
  233. 99 STS Northstar and Trans axle Problem
  234. No access to PCM info via dashboard OBD?
  235. smoking engine after install
  236. Frenchy ask help for his cadillac sts
  237. Headgaskets And "time-serts"!?
  238. Rough runner when it rains. 93 n'star
  239. ~Cadillac Deville Concours 59,000 A DISASTER??~
  240. 93 Allante w/Northstar Tranny Issues
  241. What other engines fit a 1999 Cadillac sts?
  242. Best years for N* between 93 and 99
  243. Any possible options to fix this engine noise?
  244. P0171 to lean code?
  245. 98 Deville theft sytem problem??
  246. Leave no bolt behind - Transmission Case
  247. 2002 Deville HG Replacement
  248. 00 N* still rough idle after changing plenum, cleaning TB
  249. I broke a water pump pulley
  250. Catalytic Convertor Clogged