: Northstar Engines and System Technical Discussion



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  1. Service Emission System - No Acceleration
  2. Smoke
  3. 1996 Deville hard start and fuel pressure specs
  4. Doing my own head gasket
  5. 1997 cadillac deville performance?????
  6. 2005 STS with over 100k miles
  7. cadillac eldorado overheating but no oil in water
  8. 95 SLS w/ P076 Code - Trans pressure
  9. Where do you get Norms inserts?
  10. Engine heats up at idle (99 STS)
  11. Have two questions. Was looking around and found a leak.
  12. p1520 Trans Circuit
  13. Headgasket Fix for $1250
  14. Is it a head gasket?
  15. seriously clogged purge line! need help!
  16. Almost Overheating - is this Head Gasket ?
  17. Could Use Some Insight
  18. OBD Code E-119
  19. Deville Motor Swap 1997 to 1997 sts
  20. Took on my friend's LS1 *VID*
  21. 94 northstar cooling issue
  22. OIL FILTER/oil/AIR FILTER? What do you use on your N*?
  23. Time-sert kit
  24. 95 SLS Water Pump Removal Impact Wrench or Not?
  25. 2000 Deville Mechanical Issues *HELP*
  26. Can this be possible?
  27. looking for spark plugs
  28. need correct belt size to bypass ac comp on 97 concours
  29. DYI or NOT, Blown waterpump housing gasket
  30. Northstar 4.0 Aurora 97 interchangability
  31. Programmable ECU for STS 4.6L?
  32. Rough Idle Question For Ewill3rd
  33. Bought a Timesert kit on Ebay, what else do I need to install Norms inserts?
  34. loss of power overheating issues HELP
  35. What Anti-Freeze
  36. 50 Deville - Code = P0300 current
  37. New Owner/Member w/ n*star question
  38. P0300 - Timing Off
  39. intake gaskets
  40. Northstar 4.6 Coolant loss - but only under load
  41. 2000 deville or 1997 eldorado
  42. Northstar head gasket failures
  43. GM Top Engine Cleaner
  44. Coolent Temp
  45. Going to the track
  46. N* cylinder numbers
  47. Witnessed some component fail, what to do?
  48. Overhaeting Or Not or Maybe PLEASE HELP
  49. Non ACDelco Part?
  50. Electrical Problems With 94' Seville
  51. No HI cooling fan speed?
  52. Where to cut?? cradle bolt just spins
  53. engine ID
  54. Timing Chain Slack
  55. 2000 Deville Head gasket?
  56. 2000 Dts Front Engine Mount - Best Way To Change?
  57. coolant level deville 98
  58. Drag Race Calculator...
  59. engine swap pipe dreams
  60. Ingnition MAx Fuse burns out to stall 99 deville
  61. 98 sts what fits
  62. Northstar engine performance in my 01' DeVille DHS
  63. starter woes
  64. Intermittent spark loss on random coils 94' STS
  65. Disable the SIR
  66. Can you pull the front head with the engine in the car?
  67. Mechanics - Chicago area - Help
  68. Northstar Plenum Woes
  69. How to change pulley
  70. Engine to trans. bracket locations
  71. Is this an LT5
  72. 2001 Northstar in a 93 sts?
  73. no spark
  74. 1994 Cadillac STS
  75. Manifold or water pump causing overheating???
  76. Northstar crank sensor locations
  77. Quick engine swap question
  78. Solid Front Engine Mounts
  79. 98 deville no blower motor
  80. Still overheating
  81. Serpentine Belt
  82. couple of cooling sistem questions
  83. How many gallons Dex-Cool will I need.....
  84. oil can lite on and engine shuts down
  85. cat recomendations
  86. Therma Gasket Fixed My Head Leak
  87. Ignition Module Pin Out
  88. HG or paranoia?
  89. 2000 SLS keeps stalling
  90. another n* head gasket question
  91. Do you know what this part is?
  92. N* dissassembled engine found
  93. This Is Not a Joke
  94. My Rough Idle Story, So Far...
  95. 02 SLS running rough after pulling air box silencer
  96. 97 SLS N* Overheating quickly
  97. '95 STS Stuck in 3rd Gear
  98. 98 Deville non-functional engine cooler fan
  99. Post up your NORTHSTAR GAS MILEAGE (CTY/HWY) PLZ!
  100. 300hp N* to a Base N*
  101. Added my 99 STS to the HeadGasket poll...
  102. ATTN: All Volant owners
  103. 93 octane + WOT = rattle?
  104. Drill Guide for Head Bolt Inserts
  105. Idle issue when cold
  106. 94 el dorado starter location
  107. 1-2 At 45 Now Instead Of 40?
  108. Northstar fuel rail redesign
  109. 95 Eldorado with disturbing sound...
  110. Deville 98 coolant
  111. Is this the beginning of the end for my STS?
  112. 1994 Deville con
  113. 01 Olds Aurora Question...
  114. Coolant overflow?
  115. Switching a 1998 Northstar with a 2005 ?
  116. What to do with my 2000 DTS?
  117. Oh
  118. Headgasket info?
  119. Blown Engine???
  120. Fuel Induction System Specs
  121. Car is over heating?
  122. '02 STS Drain Plug Issue
  123. Oil guzzling 2003 Deville Northstar V8
  124. Cracked Block, exterior, 1997 Northstar
  125. Coil Bank Problems
  126. balancer bolt
  127. 2000 DeVille Overheats
  128. sounds like harmonic balancer??
  129. Over heating
  130. MSD Plug wires
  131. Delphi/Packard vs Delco Plug Wires
  132. HG Failure, Round 2
  133. new fuel injector & upper engine cleaner
  134. Tranny Question
  135. Location of ALL o2 sensors
  136. Hey Guys
  137. 93 Eldorado Sport Coupe Vs Touring Coupe
  138. ac compressor problem???
  139. Combustion Leak Detection
  140. Po41 code set
  141. Porting the throttlebody
  142. Another 97 DeVille Overheating Issue
  143. Can '03 Seville display digital coolant temp reading?
  144. BARS Head Gasket Fix and Aux Fan control
  145. Whistling pressure relief on N* Intake Manifold???
  146. Who needs a Timesert kit- I have one!!
  147. where does this thing go (headgasket job)
  148. Hard Start
  149. any tips on removing coolant crossover?
  150. 1996 Deville Intake??
  151. Performing "block" test from Napa
  152. Service A/c and A/C compressor off
  153. draining trans fluid 4T80E
  154. no start lots of codes network ?
  155. engine swap
  156. 1993 to 1999 Cam Wear Fix
  157. 94 Eldo ETC
  158. Need diagnosis - 98 STS overheating
  159. Professional Coolant Flush
  160. 4T80-E transaxle
  161. Oil Adapter housing Problems :(
  162. Head gasket, possibly cracked block...
  163. etanol blend, what does it do to the n?
  164. Loaded '03 STS 103k great shape - Dealer says it's the head gaskets.
  165. Problem with my Fast Chip
  166. Is there a Northstar FAQ section?
  167. 97 sts auto radio shut off
  168. Severe engine miss at idle-dirty gas in filter
  169. How Do I Change the ignition switch
  170. Cadillac De Ville 1999 OverHeat
  171. NO START, but the battery is good
  172. STS "Limited to 90 Miles an Hour" Message
  173. 1997 STS Ghostly Noise from Vacuum Leak?
  174. 4T80E bellhousing: starter?
  175. Blown Head Gasket On A 97 Deville
  176. North Star & Transmission Issues
  177. Head Gaskets
  178. Oil Housing
  179. North Star & Transmission Issues
  180. 4t80e problems
  181. Reverse problem someone please help me please
  182. AC & Intake
  183. '99 El Dorado Trans Question 2
  184. '99 El Dorado Tranaxle Modulator Location and Replacement
  185. Compression and oil consumption
  186. Anyone sells lower temperature thermostats?
  187. 1996 Deville Trouble Codes--Help Me!
  188. Aftermarket coils
  189. 05 STS V8 pcm reprogramming?
  190. '99 El Dorado White Smoke 70 mph and up
  191. Decel Stall
  192. no crank
  193. Who wants headers?!?!
  194. replacing oil pressure sending unit
  195. Northstar intermittent heating problem
  196. Compressed Natural Gas
  197. Proper A/C Recharge Pressure Spec?
  198. Head Bolt Torque
  199. what to do with a code
  200. Need headgaskets replaced...Twin Cities, MN area...
  201. Help finding exterior ground location IC Module
  202. Ran out of gas - Now will not start
  203. Hard Starting N* And Unknown Code
  204. Just wanted to check on some codes P0171 and P0134
  205. Ignition Miss - '98 DeVille
  206. Oil Testing, laboratories, and Additives
  207. What timesert kit is this referencing?
  208. Block Test Confirms!...or ?
  209. 2000 Deville with Denso plugs
  210. VIN or other link to body stamped on block?
  211. Prevent head gasket failure
  212. 2000 DeVille Northstar Problem
  213. Previously Timeserted block?
  214. turbo charging a Northstar
  215. p1350 & p1375 codes?
  216. bad fuel economy, rough(er) idle, need help!
  217. What gets relearned after battery disconnect?
  218. idle speed control
  219. 99 Deville Hesitation during Acceleration
  220. strange noise please help
  221. What happen to my overdrive???????
  222. Northstar Overheating!!! HELP
  223. After Timesert HG Repair Service Schedule?
  224. Top engine compartment struts
  225. '01 Deville with Half case leak, any temp fixes/band-aides?
  226. crankshaft sensor location ?
  227. Anyone heard of this?
  228. Are All Xlr's The New Style Closed Deck?
  229. MAF Translator
  230. Are A & B Crankshaft Position Sensors the same sensor??
  231. How much bubbling in surge tank indicates bad head gasket?
  232. Sick Baby
  233. Jet Power Flow Mass Air Sensor
  234. Everything You ever Wanted To Know About Cooling System Sealant Tabs
  235. O2, IAT, MAF sensor reliability on 2000 N*?
  236. Another Successful Mod (albeit potentially destructive)
  237. Questions On Rebuilding a Northstar Engine
  238. eldorado1 (and others)...my brain is failing me...help!
  239. Kent-moore Inserts, Anyone Every Use Them?
  240. 1996 Eldorado Won't Start
  241. 93 STS Northstar wont start
  242. radiator hose sucking itself in after car cools off
  243. upper trans oil cooler hose leaking
  244. What to do with these? (headgasket help)
  245. Not Again
  246. How Much Coolant?!?!
  247. 99 STS Northstar and Trans axle Problem
  248. No access to PCM info via dashboard OBD?
  249. smoking engine after install
  250. Frenchy ask help for his cadillac sts