: Northstar Engines and System Technical Discussion



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  1. weak fuel pump question
  2. Low oil pressure/stop engine message
  3. '03 SLS - "Surges" at slowdown and stoplights
  4. torque convertor clutch solenoid
  5. Service Electrical System
  6. EGR Removal / Steel fuel rails
  7. advice needed - stubborn tight spark plug
  8. Motor swap,
  9. "97 DeVille B1S1 Oxygen Sensor
  10. I need help
  11. Track times
  12. Coolant leak when driving
  13. 96 SLS Electrical Charge System Gremlin
  14. P 420 code-what does it mean?
  15. Heater Core?
  16. Which side of the engine is "left" side?
  17. Vacuun line diagrahm
  18. 96 sls over curb now won't start
  19. electrical humming noise
  20. cam reluctors
  21. crankshaft sensors
  22. confused
  23. Transmission Pressure Control Solenoid 4T80E
  24. Worn Engine Mounts?
  25. strip thread in block
  26. Cadillac techs, can we visit you?
  27. Why remove the strut brace?
  28. oil filter adapter housing broke!
  29. Head gasket
  30. '97 Northstar MAF location and codes
  31. 94 4.6L Northstar stalls after warmup
  32. P024 - current 93 n* 4t80e trans.
  33. Fuel line?/Vacuum Line?
  34. 1993 4T80-E Transmission
  35. 65k mile service
  36. 4.6L Northstar Rattle
  37. '93 North* Glitch out of hand!
  38. 94 Concours Engine Clatter
  39. Any idea what part this is..urgent
  40. 94 N* overheating and leaking -bubba move
  41. What does a missfire feel like?
  42. 94 Concours leaking oil question
  43. Coil Pack Replacement
  44. 4.0L Northstar, more related to vin Y or vin 9?
  45. Converting a Y engine to a 9 in 97 STS
  46. '93 North* RUBBER PARTS!!!!!
  47. Ignition Ground Voltage
  48. Water in the valley
  49. Head Gasket Repair
  50. Would it be worth it?.
  51. TC defeat in 1st gear
  52. Yellow anti-freeze ?. (sorry)
  53. Where is the radiator drain plug?
  54. 4.9L? How can I tell?
  55. My 2 day old SLS is giving me some strange problems
  56. oil overfilled
  57. Reseting the ECU and PCM
  58. Just bought a used 1999 Deville 4.6L
  59. WOT vs HG preservation
  60. 03 Deville Filter Adapter Oil Leak
  61. Towing a FWD N* vehicle on 4 wheels
  62. Coolant in my Oil
  63. Northstar Repair without inserts
  64. 93 eldo northstar engine missing
  65. Help me understand...
  66. 97 sts cadillac turns over, will not start
  67. It overheated again - any idea why?
  68. What should I do about this 1997 Eldorado ETC?
  69. 96' Seville HG Problems.. :-(
  70. 97 SLS hard to start when warm
  71. How does this engine sound?
  72. HELP ASAP Need to Identify Engine in 97 sts
  73. 2000+ Northstars look different??
  74. cylinder guide pin removal
  75. 03 seville pcv location
  76. Are 00+ northstars slower than <99??
  77. 4.6 Northstar doining very strange
  78. engine boggs when accelerator is stepped on quickly
  79. do you have to pull motor to do head gaskets, can it be done in the car
  80. Thinking about a K&N cold air intake...
  81. northstar drive shaft problems, probably damaged bearing
  82. question on my 95 deville concours. heat gone out and check engine light....
  83. Are Northstar Heads Rebuildable? Or disposable?
  84. Water pump tensioner catastrophic failure?
  85. My Northstar HG project
  86. She's runnin' HOT captain.....
  87. Intake manifold
  88. How Can I prevent a blown head gasket problem
  89. steam out of tailpipes
  90. 93 STS cooling system/h-gasket problem
  91. Hard shifting and codes 0719 and 0732?
  92. 2000 devile Northstar 4.6 running hot
  93. Repairs to a 4T80E after 600+ hp
  94. Water crossover re-assembly
  95. Electric fans arent coming on / overheating
  96. 94 sts key stuck wont start
  97. Overheating problem...
  98. Engine surges?
  99. Front Bank Misfire
  100. Drag tips or suggestions for 03 DTS.
  101. looking for plug wires
  102. Eldorado Dog Bones on a STS/DTS
  103. Permanent HG Repair - Give an old N* new life
  104. 1999 Eldorado engine whine
  105. Where is oil filter?
  106. 95 Eldorado stalling
  107. P0300 code....AGAIN!
  108. 2 northstars ?
  109. Smoke after shutdown... Classic N* oil leak issue?
  110. Heal-a-seal
  111. Northstar Cold idle Knock?
  112. intermittent issue with burning smell
  113. Update on Turbo 99STS
  114. Aurora 4.0 V8
  115. 97 SLS engine problem
  116. Car will not start, backfired smoke form under hood on pass. side
  117. LOW COOLANT warning
  118. A list of factory stock quarter mile times?
  119. Northstar engines are a joke
  120. Please help with eratic idle!!!!!!!!!!
  121. Volkswagen Northstar ????
  122. Air Fuel Ratio on Narrow-Band O2 Sensor
  123. Did I Post This Question in The Wrong Place?
  124. small coolent leak
  125. mechanical oil pressure gage sending unit location
  126. Fuel rail
  127. Where is the PCM
  128. Two more codes ?
  129. 02' DHS overheating!!!!
  130. 2000 Deville Code P1860
  131. Head gasket repair "corpus christi, tx"
  132. OBD2 Scantool for Northstar Engine to monitor knock?
  133. Northstar Gas Mileage
  134. Help ASAP:will 96/97 power train exchange?
  135. Repair head gasket Or buy remanufactured eng
  136. 2000 STS Head gasket problem?
  137. 2001 STS motor mount?
  138. wrong alternator
  139. Another P1860/P0741 repair
  140. 2001 Seville Water pump?
  141. Information on P0741 & P1860. 1998+
  142. Philistines
  143. Opinions on N* nitrous use.
  144. 97 deville hard starting, no codes
  145. oil cooler
  146. Blown Head Gaskets?
  147. I need a water pump drive pulley please help
  148. Intake Backfire
  149. Dyno Run
  150. Replaced Engine 99 STS a few electrical issues!!!
  151. Drivetrain Efficiency
  152. What Gas Are You Using?
  153. pulled code pcm0443
  154. 05 sts v8 engine light
  155. Please Help P300
  156. Almost ready to go
  157. p0308 misfire, trying to find problem
  158. The use of Aftermarket reusable air filters
  159. Fuel pump :(
  160. Head gaskets X 2
  161. Long-term fuel trims up during deceleration
  162. Oil pressure after HG repair
  163. 240mph wooden car gets reversed flow NorthStar
  164. 98 sts stalling..aj..ranger...sub...help
  165. Water pump pulley disintegrating
  166. Regapping platinum plugs & best NA performance gap
  167. Head Gaskets Cause Coolent to Boil? And Repairs
  168. Engine swap
  169. Headgasket Vendor
  170. trans leak from a 4-80
  171. Loctite Red Gel REMOVAL!!!!!
  172. Service Emission System - No Acceleration
  173. Smoke
  174. 1996 Deville hard start and fuel pressure specs
  175. Doing my own head gasket
  176. 1997 cadillac deville performance?????
  177. 2005 STS with over 100k miles
  178. cadillac eldorado overheating but no oil in water
  179. 95 SLS w/ P076 Code - Trans pressure
  180. Where do you get Norms inserts?
  181. Engine heats up at idle (99 STS)
  182. Have two questions. Was looking around and found a leak.
  183. p1520 Trans Circuit
  184. Headgasket Fix for $1250
  185. Is it a head gasket?
  186. seriously clogged purge line! need help!
  187. Almost Overheating - is this Head Gasket ?
  188. Could Use Some Insight
  189. OBD Code E-119
  190. Deville Motor Swap 1997 to 1997 sts
  191. Took on my friend's LS1 *VID*
  192. 94 northstar cooling issue
  193. OIL FILTER/oil/AIR FILTER? What do you use on your N*?
  194. Time-sert kit
  195. 95 SLS Water Pump Removal Impact Wrench or Not?
  196. 2000 Deville Mechanical Issues *HELP*
  197. Can this be possible?
  198. looking for spark plugs
  199. need correct belt size to bypass ac comp on 97 concours
  200. DYI or NOT, Blown waterpump housing gasket
  201. Northstar 4.0 Aurora 97 interchangability
  202. Programmable ECU for STS 4.6L?
  203. Rough Idle Question For Ewill3rd
  204. Bought a Timesert kit on Ebay, what else do I need to install Norms inserts?
  205. loss of power overheating issues HELP
  206. What Anti-Freeze
  207. 50 Deville - Code = P0300 current
  208. New Owner/Member w/ n*star question
  209. P0300 - Timing Off
  210. intake gaskets
  211. Northstar 4.6 Coolant loss - but only under load
  212. 2000 deville or 1997 eldorado
  213. Northstar head gasket failures
  214. GM Top Engine Cleaner
  215. Coolent Temp
  216. Going to the track
  217. N* cylinder numbers
  218. Witnessed some component fail, what to do?
  219. Overhaeting Or Not or Maybe PLEASE HELP
  220. Non ACDelco Part?
  221. Electrical Problems With 94' Seville
  222. No HI cooling fan speed?
  223. Where to cut?? cradle bolt just spins
  224. engine ID
  225. Timing Chain Slack
  226. 2000 Deville Head gasket?
  227. 2000 Dts Front Engine Mount - Best Way To Change?
  228. coolant level deville 98
  229. Drag Race Calculator...
  230. engine swap pipe dreams
  231. Ingnition MAx Fuse burns out to stall 99 deville
  232. 98 sts what fits
  233. Northstar engine performance in my 01' DeVille DHS
  234. starter woes
  235. Intermittent spark loss on random coils 94' STS
  236. Disable the SIR
  237. Can you pull the front head with the engine in the car?
  238. Mechanics - Chicago area - Help
  239. Northstar Plenum Woes
  240. How to change pulley
  241. Engine to trans. bracket locations
  242. Is this an LT5
  243. 2001 Northstar in a 93 sts?
  244. no spark
  245. 1994 Cadillac STS
  246. Manifold or water pump causing overheating???
  247. Northstar crank sensor locations
  248. Quick engine swap question
  249. Solid Front Engine Mounts
  250. 98 deville no blower motor