: Northstar Engines and System Technical Discussion



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  1. Keep getting same code.
  2. Cold starts not so good...
  3. 2001 DTS valvetrain noise after HG job?!
  4. Half Case Seal....
  5. P0153 - HO2S Slow Response Bank 2 Sensor 1
  6. Oil leak on STS, oil pan?
  7. 1994 eldorado coolant leak
  8. failed smog test again. the HC is still high @15MPH
  9. what resonator reduces drone, but not volume? (corsa not option)
  10. Water crossover parts to replace?
  11. intake and top cover 94 Seville STS 4.6
  12. 00 STS Air Pumps; how many of them?
  13. oil pressure
  14. Have a Northstar engine, what should I do with it?
  15. Code help...please!!!!!
  16. Help with o2 sensor--no cat--code p0146
  17. Anyone here an attorney - re: Head gasket failures?
  18. what happend to my kruella
  19. 6 of 8 spark plugs are oily!
  20. Code Assistance
  21. HG cause emissions test failure?
  22. new DTS. wide open throttle?
  23. Quick question: about to order from Rockauto
  24. Remote start
  25. 01 dhs over heating HELP!! PLEASE
  26. Questions about my Headgasket Job
  27. Curse stop leak and fast talking sales men!!
  28. Onboard computer and the octane rating of the fuel being used.
  29. 99 Deville Northstar-New fuel pump, but wont start
  30. need help on north star wire replacing...
  31. codes 073 and 1644
  32. Ranger Should Write a Caddy What to Expect Book
  33. 1st Annual Northstar Meet
  34. Dtc 730
  35. Northstar Stud Kits ready to ship!
  36. 98 SLS screeching noise from egen.
  37. ICM weak spark, have questions
  38. How to drop the cradle?
  39. Wheres my coolant going????
  40. front driver o2 sensor, where do connector wire lead to??
  41. Just got Headgaskets done. Still yellow liquid.
  42. Alternator Bearing Replacement?
  43. 01 STS Cracked Block Rebuilt Engine Recomendations
  44. Didn't pass emission. Got a high NO. Shouldn't use regular Gas(87)?
  45. A spike in coolant temp '93 North*
  46. 2007 XLR 4.6 in a Hot Rod!
  47. Testing MAF Sensor on '97 N* ??
  48. 02 SLS not liking the cold weather
  49. New Eldo Owner: Speed Limiter Question
  50. Damned Motor Mounts
  51. weak fuel pump question
  52. Low oil pressure/stop engine message
  53. '03 SLS - "Surges" at slowdown and stoplights
  54. torque convertor clutch solenoid
  55. Service Electrical System
  56. EGR Removal / Steel fuel rails
  57. advice needed - stubborn tight spark plug
  58. Motor swap,
  59. "97 DeVille B1S1 Oxygen Sensor
  60. I need help
  61. Track times
  62. Coolant leak when driving
  63. 96 SLS Electrical Charge System Gremlin
  64. P 420 code-what does it mean?
  65. Heater Core?
  66. Which side of the engine is "left" side?
  67. Vacuun line diagrahm
  68. 96 sls over curb now won't start
  69. electrical humming noise
  70. cam reluctors
  71. crankshaft sensors
  72. confused
  73. Transmission Pressure Control Solenoid 4T80E
  74. Worn Engine Mounts?
  75. strip thread in block
  76. Cadillac techs, can we visit you?
  77. Why remove the strut brace?
  78. oil filter adapter housing broke!
  79. Head gasket
  80. '97 Northstar MAF location and codes
  81. 94 4.6L Northstar stalls after warmup
  82. P024 - current 93 n* 4t80e trans.
  83. Fuel line?/Vacuum Line?
  84. 1993 4T80-E Transmission
  85. 65k mile service
  86. 4.6L Northstar Rattle
  87. '93 North* Glitch out of hand!
  88. 94 Concours Engine Clatter
  89. Any idea what part this is..urgent
  90. 94 N* overheating and leaking -bubba move
  91. What does a missfire feel like?
  92. 94 Concours leaking oil question
  93. Coil Pack Replacement
  94. 4.0L Northstar, more related to vin Y or vin 9?
  95. Converting a Y engine to a 9 in 97 STS
  96. '93 North* RUBBER PARTS!!!!!
  97. Ignition Ground Voltage
  98. Water in the valley
  99. Head Gasket Repair
  100. Would it be worth it?.
  101. TC defeat in 1st gear
  102. Yellow anti-freeze ?. (sorry)
  103. Where is the radiator drain plug?
  104. 4.9L? How can I tell?
  105. My 2 day old SLS is giving me some strange problems
  106. oil overfilled
  107. Reseting the ECU and PCM
  108. Just bought a used 1999 Deville 4.6L
  109. WOT vs HG preservation
  110. 03 Deville Filter Adapter Oil Leak
  111. Towing a FWD N* vehicle on 4 wheels
  112. Coolant in my Oil
  113. Northstar Repair without inserts
  114. 93 eldo northstar engine missing
  115. Help me understand...
  116. 97 sts cadillac turns over, will not start
  117. It overheated again - any idea why?
  118. What should I do about this 1997 Eldorado ETC?
  119. 96' Seville HG Problems.. :-(
  120. 97 SLS hard to start when warm
  121. How does this engine sound?
  122. HELP ASAP Need to Identify Engine in 97 sts
  123. 2000+ Northstars look different??
  124. cylinder guide pin removal
  125. 03 seville pcv location
  126. Are 00+ northstars slower than <99??
  127. 4.6 Northstar doining very strange
  128. engine boggs when accelerator is stepped on quickly
  129. do you have to pull motor to do head gaskets, can it be done in the car
  130. Thinking about a K&N cold air intake...
  131. northstar drive shaft problems, probably damaged bearing
  132. question on my 95 deville concours. heat gone out and check engine light....
  133. Are Northstar Heads Rebuildable? Or disposable?
  134. Water pump tensioner catastrophic failure?
  135. My Northstar HG project
  136. She's runnin' HOT captain.....
  137. Intake manifold
  138. How Can I prevent a blown head gasket problem
  139. steam out of tailpipes
  140. 93 STS cooling system/h-gasket problem
  141. Hard shifting and codes 0719 and 0732?
  142. 2000 devile Northstar 4.6 running hot
  143. Repairs to a 4T80E after 600+ hp
  144. Water crossover re-assembly
  145. Electric fans arent coming on / overheating
  146. 94 sts key stuck wont start
  147. Overheating problem...
  148. Engine surges?
  149. Front Bank Misfire
  150. Drag tips or suggestions for 03 DTS.
  151. looking for plug wires
  152. Eldorado Dog Bones on a STS/DTS
  153. Permanent HG Repair - Give an old N* new life
  154. 1999 Eldorado engine whine
  155. Where is oil filter?
  156. 95 Eldorado stalling
  157. P0300 code....AGAIN!
  158. 2 northstars ?
  159. Smoke after shutdown... Classic N* oil leak issue?
  160. Heal-a-seal
  161. Northstar Cold idle Knock?
  162. intermittent issue with burning smell
  163. Update on Turbo 99STS
  164. Aurora 4.0 V8
  165. 97 SLS engine problem
  166. Car will not start, backfired smoke form under hood on pass. side
  167. LOW COOLANT warning
  168. A list of factory stock quarter mile times?
  169. Northstar engines are a joke
  170. Please help with eratic idle!!!!!!!!!!
  171. Volkswagen Northstar ????
  172. Air Fuel Ratio on Narrow-Band O2 Sensor
  173. Did I Post This Question in The Wrong Place?
  174. small coolent leak
  175. mechanical oil pressure gage sending unit location
  176. Fuel rail
  177. Where is the PCM
  178. Two more codes ?
  179. 02' DHS overheating!!!!
  180. 2000 Deville Code P1860
  181. Head gasket repair "corpus christi, tx"
  182. OBD2 Scantool for Northstar Engine to monitor knock?
  183. Northstar Gas Mileage
  184. Help ASAP:will 96/97 power train exchange?
  185. Repair head gasket Or buy remanufactured eng
  186. 2000 STS Head gasket problem?
  187. 2001 STS motor mount?
  188. wrong alternator
  189. Another P1860/P0741 repair
  190. 2001 Seville Water pump?
  191. Information on P0741 & P1860. 1998+
  192. Philistines
  193. Opinions on N* nitrous use.
  194. 97 deville hard starting, no codes
  195. oil cooler
  196. Blown Head Gaskets?
  197. I need a water pump drive pulley please help
  198. Intake Backfire
  199. Dyno Run
  200. Replaced Engine 99 STS a few electrical issues!!!
  201. Drivetrain Efficiency
  202. What Gas Are You Using?
  203. pulled code pcm0443
  204. 05 sts v8 engine light
  205. Please Help P300
  206. Almost ready to go
  207. p0308 misfire, trying to find problem
  208. The use of Aftermarket reusable air filters
  209. Fuel pump :(
  210. Head gaskets X 2
  211. Long-term fuel trims up during deceleration
  212. Oil pressure after HG repair
  213. 240mph wooden car gets reversed flow NorthStar
  214. 98 sts stalling..aj..ranger...sub...help
  215. Water pump pulley disintegrating
  216. Regapping platinum plugs & best NA performance gap
  217. Head Gaskets Cause Coolent to Boil? And Repairs
  218. Engine swap
  219. Headgasket Vendor
  220. trans leak from a 4-80
  221. Loctite Red Gel REMOVAL!!!!!
  222. Service Emission System - No Acceleration
  223. Smoke
  224. 1996 Deville hard start and fuel pressure specs
  225. Doing my own head gasket
  226. 1997 cadillac deville performance?????
  227. 2005 STS with over 100k miles
  228. cadillac eldorado overheating but no oil in water
  229. 95 SLS w/ P076 Code - Trans pressure
  230. Where do you get Norms inserts?
  231. Engine heats up at idle (99 STS)
  232. Have two questions. Was looking around and found a leak.
  233. p1520 Trans Circuit
  234. Headgasket Fix for $1250
  235. Is it a head gasket?
  236. seriously clogged purge line! need help!
  237. Almost Overheating - is this Head Gasket ?
  238. Could Use Some Insight
  239. OBD Code E-119
  240. Deville Motor Swap 1997 to 1997 sts
  241. Took on my friend's LS1 *VID*
  242. 94 northstar cooling issue
  243. OIL FILTER/oil/AIR FILTER? What do you use on your N*?
  244. Time-sert kit
  245. 95 SLS Water Pump Removal Impact Wrench or Not?
  246. 2000 Deville Mechanical Issues *HELP*
  247. Can this be possible?
  248. looking for spark plugs
  249. need correct belt size to bypass ac comp on 97 concours
  250. DYI or NOT, Blown waterpump housing gasket