: Northstar Engines and System Technical Discussion



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  1. 94 4.6L Northstar stalls after warmup
  2. P024 - current 93 n* 4t80e trans.
  3. Fuel line?/Vacuum Line?
  4. 1993 4T80-E Transmission
  5. 65k mile service
  6. 4.6L Northstar Rattle
  7. '93 North* Glitch out of hand!
  8. 94 Concours Engine Clatter
  9. Any idea what part this is..urgent
  10. 94 N* overheating and leaking -bubba move
  11. What does a missfire feel like?
  12. 94 Concours leaking oil question
  13. Coil Pack Replacement
  14. 4.0L Northstar, more related to vin Y or vin 9?
  15. Converting a Y engine to a 9 in 97 STS
  16. '93 North* RUBBER PARTS!!!!!
  17. Ignition Ground Voltage
  18. Water in the valley
  19. Head Gasket Repair
  20. Would it be worth it?.
  21. TC defeat in 1st gear
  22. Yellow anti-freeze ?. (sorry)
  23. Where is the radiator drain plug?
  24. 4.9L? How can I tell?
  25. My 2 day old SLS is giving me some strange problems
  26. oil overfilled
  27. Reseting the ECU and PCM
  28. Just bought a used 1999 Deville 4.6L
  29. WOT vs HG preservation
  30. 03 Deville Filter Adapter Oil Leak
  31. Towing a FWD N* vehicle on 4 wheels
  32. Coolant in my Oil
  33. Northstar Repair without inserts
  34. 93 eldo northstar engine missing
  35. Help me understand...
  36. 97 sts cadillac turns over, will not start
  37. It overheated again - any idea why?
  38. What should I do about this 1997 Eldorado ETC?
  39. 96' Seville HG Problems.. :-(
  40. 97 SLS hard to start when warm
  41. How does this engine sound?
  42. HELP ASAP Need to Identify Engine in 97 sts
  43. 2000+ Northstars look different??
  44. cylinder guide pin removal
  45. 03 seville pcv location
  46. Are 00+ northstars slower than <99??
  47. 4.6 Northstar doining very strange
  48. engine boggs when accelerator is stepped on quickly
  49. do you have to pull motor to do head gaskets, can it be done in the car
  50. Thinking about a K&N cold air intake...
  51. northstar drive shaft problems, probably damaged bearing
  52. question on my 95 deville concours. heat gone out and check engine light....
  53. Are Northstar Heads Rebuildable? Or disposable?
  54. Water pump tensioner catastrophic failure?
  55. My Northstar HG project
  56. She's runnin' HOT captain.....
  57. Intake manifold
  58. How Can I prevent a blown head gasket problem
  59. steam out of tailpipes
  60. 93 STS cooling system/h-gasket problem
  61. Hard shifting and codes 0719 and 0732?
  62. 2000 devile Northstar 4.6 running hot
  63. Repairs to a 4T80E after 600+ hp
  64. Water crossover re-assembly
  65. Electric fans arent coming on / overheating
  66. 94 sts key stuck wont start
  67. Overheating problem...
  68. Engine surges?
  69. Front Bank Misfire
  70. Drag tips or suggestions for 03 DTS.
  71. looking for plug wires
  72. Eldorado Dog Bones on a STS/DTS
  73. Permanent HG Repair - Give an old N* new life
  74. 1999 Eldorado engine whine
  75. Where is oil filter?
  76. 95 Eldorado stalling
  77. P0300 code....AGAIN!
  78. 2 northstars ?
  79. Smoke after shutdown... Classic N* oil leak issue?
  80. Heal-a-seal
  81. Northstar Cold idle Knock?
  82. intermittent issue with burning smell
  83. Update on Turbo 99STS
  84. Aurora 4.0 V8
  85. 97 SLS engine problem
  86. Car will not start, backfired smoke form under hood on pass. side
  87. LOW COOLANT warning
  88. A list of factory stock quarter mile times?
  89. Northstar engines are a joke
  90. Please help with eratic idle!!!!!!!!!!
  91. Volkswagen Northstar ????
  92. Air Fuel Ratio on Narrow-Band O2 Sensor
  93. Did I Post This Question in The Wrong Place?
  94. small coolent leak
  95. mechanical oil pressure gage sending unit location
  96. Fuel rail
  97. Where is the PCM
  98. Two more codes ?
  99. 02' DHS overheating!!!!
  100. 2000 Deville Code P1860
  101. Head gasket repair "corpus christi, tx"
  102. OBD2 Scantool for Northstar Engine to monitor knock?
  103. Northstar Gas Mileage
  104. Help ASAP:will 96/97 power train exchange?
  105. Repair head gasket Or buy remanufactured eng
  106. 2000 STS Head gasket problem?
  107. 2001 STS motor mount?
  108. wrong alternator
  109. Another P1860/P0741 repair
  110. 2001 Seville Water pump?
  111. Information on P0741 & P1860. 1998+
  112. Philistines
  113. Opinions on N* nitrous use.
  114. 97 deville hard starting, no codes
  115. oil cooler
  116. Blown Head Gaskets?
  117. I need a water pump drive pulley please help
  118. Intake Backfire
  119. Dyno Run
  120. Replaced Engine 99 STS a few electrical issues!!!
  121. Drivetrain Efficiency
  122. What Gas Are You Using?
  123. pulled code pcm0443
  124. 05 sts v8 engine light
  125. Please Help P300
  126. Almost ready to go
  127. p0308 misfire, trying to find problem
  128. The use of Aftermarket reusable air filters
  129. Fuel pump :(
  130. Head gaskets X 2
  131. Long-term fuel trims up during deceleration
  132. Oil pressure after HG repair
  133. 240mph wooden car gets reversed flow NorthStar
  134. 98 sts stalling..aj..ranger...sub...help
  135. Water pump pulley disintegrating
  136. Regapping platinum plugs & best NA performance gap
  137. Head Gaskets Cause Coolent to Boil? And Repairs
  138. Engine swap
  139. Headgasket Vendor
  140. trans leak from a 4-80
  141. Loctite Red Gel REMOVAL!!!!!
  142. Service Emission System - No Acceleration
  143. Smoke
  144. 1996 Deville hard start and fuel pressure specs
  145. Doing my own head gasket
  146. 1997 cadillac deville performance?????
  147. 2005 STS with over 100k miles
  148. cadillac eldorado overheating but no oil in water
  149. 95 SLS w/ P076 Code - Trans pressure
  150. Where do you get Norms inserts?
  151. Engine heats up at idle (99 STS)
  152. Have two questions. Was looking around and found a leak.
  153. p1520 Trans Circuit
  154. Headgasket Fix for $1250
  155. Is it a head gasket?
  156. seriously clogged purge line! need help!
  157. Almost Overheating - is this Head Gasket ?
  158. Could Use Some Insight
  159. OBD Code E-119
  160. Deville Motor Swap 1997 to 1997 sts
  161. Took on my friend's LS1 *VID*
  162. 94 northstar cooling issue
  163. OIL FILTER/oil/AIR FILTER? What do you use on your N*?
  164. Time-sert kit
  165. 95 SLS Water Pump Removal Impact Wrench or Not?
  166. 2000 Deville Mechanical Issues *HELP*
  167. Can this be possible?
  168. looking for spark plugs
  169. need correct belt size to bypass ac comp on 97 concours
  170. DYI or NOT, Blown waterpump housing gasket
  171. Northstar 4.0 Aurora 97 interchangability
  172. Programmable ECU for STS 4.6L?
  173. Rough Idle Question For Ewill3rd
  174. Bought a Timesert kit on Ebay, what else do I need to install Norms inserts?
  175. loss of power overheating issues HELP
  176. What Anti-Freeze
  177. 50 Deville - Code = P0300 current
  178. New Owner/Member w/ n*star question
  179. P0300 - Timing Off
  180. intake gaskets
  181. Northstar 4.6 Coolant loss - but only under load
  182. 2000 deville or 1997 eldorado
  183. Northstar head gasket failures
  184. GM Top Engine Cleaner
  185. Coolent Temp
  186. Going to the track
  187. N* cylinder numbers
  188. Witnessed some component fail, what to do?
  189. Overhaeting Or Not or Maybe PLEASE HELP
  190. Non ACDelco Part?
  191. Electrical Problems With 94' Seville
  192. No HI cooling fan speed?
  193. Where to cut?? cradle bolt just spins
  194. engine ID
  195. Timing Chain Slack
  196. 2000 Deville Head gasket?
  197. 2000 Dts Front Engine Mount - Best Way To Change?
  198. coolant level deville 98
  199. Drag Race Calculator...
  200. engine swap pipe dreams
  201. Ingnition MAx Fuse burns out to stall 99 deville
  202. 98 sts what fits
  203. Northstar engine performance in my 01' DeVille DHS
  204. starter woes
  205. Intermittent spark loss on random coils 94' STS
  206. Disable the SIR
  207. Can you pull the front head with the engine in the car?
  208. Mechanics - Chicago area - Help
  209. Northstar Plenum Woes
  210. How to change pulley
  211. Engine to trans. bracket locations
  212. Is this an LT5
  213. 2001 Northstar in a 93 sts?
  214. no spark
  215. 1994 Cadillac STS
  216. Manifold or water pump causing overheating???
  217. Northstar crank sensor locations
  218. Quick engine swap question
  219. Solid Front Engine Mounts
  220. 98 deville no blower motor
  221. Still overheating
  222. Serpentine Belt
  223. couple of cooling sistem questions
  224. How many gallons Dex-Cool will I need.....
  225. oil can lite on and engine shuts down
  226. cat recomendations
  227. Therma Gasket Fixed My Head Leak
  228. Ignition Module Pin Out
  229. HG or paranoia?
  230. 2000 SLS keeps stalling
  231. another n* head gasket question
  232. Do you know what this part is?
  233. N* dissassembled engine found
  234. This Is Not a Joke
  235. My Rough Idle Story, So Far...
  236. 02 SLS running rough after pulling air box silencer
  237. 97 SLS N* Overheating quickly
  238. '95 STS Stuck in 3rd Gear
  239. 98 Deville non-functional engine cooler fan
  240. Post up your NORTHSTAR GAS MILEAGE (CTY/HWY) PLZ!
  241. 300hp N* to a Base N*
  242. Added my 99 STS to the HeadGasket poll...
  243. ATTN: All Volant owners
  244. 93 octane + WOT = rattle?
  245. Drill Guide for Head Bolt Inserts
  246. Idle issue when cold
  247. 94 el dorado starter location
  248. 1-2 At 45 Now Instead Of 40?
  249. Northstar fuel rail redesign
  250. 95 Eldorado with disturbing sound...