: Northstar Engines and System Technical Discussion



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  1. 99 STS - Blown Head Gaskets
  2. throttle body and egr tubes
  3. 99 Concourse, just going to buy then clonk
  4. Any Temp Seal For Head gaskets??
  5. Wow, this stinks
  6. Oxygen Sensor
  7. my engine on my 98....
  8. What could the problem be????
  9. OBD Codes
  10. Northstar Exhaust acoustic "tuning", Bbobinsky?
  11. '94 Deville n* h2O pipes behind engine rusted out
  12. Map sensor
  13. Help with codes for the Concourse
  14. problems with 94 deville 4.6L
  15. Which Fuel Pressure Regulator?
  16. New Application for the N*
  17. Engine miss
  18. Northstar engine miss
  19. 97 Deville Running poorly Help.
  20. EGR stuck = retarded timing?
  21. What is an MAF, and where can I find it?
  22. Spark Plugs on 94 STS.
  23. WOT, Premium Gas and Service Engine Soon Message
  24. Re: Didn't know where else to post this...
  25. Acetone and the Northstar
  26. whats with the front valve cover???
  27. Theory for Bbob: Fuel grade AGAIN ;)
  28. Need an Honest Opinion on my STS
  29. Plugs and Wires
  30. Missfire sensor
  31. Not head GASKET!
  32. 94 deville intake cover
  33. DIC controlls
  34. superchip
  35. Help my Cadillac Starts by itself
  36. Whats up with this "turbonoter"?
  37. Are there certain northstar engines to stay away from?
  38. 98 Eldo N* Cooling Issues..Now This?
  39. Bad injectors at 50K miles?
  40. Coolant supplement paradox (yeah this again :-)
  41. 95 sts mods
  42. Lifting Fuel Rail
  43. Engine miss when HOT outside.
  44. New Concours owner has PF61 question
  45. Catalytic converter
  46. Need help with O2 sensor.
  47. Just for laughs.....
  48. 94 N* motor pulled tips and ideas
  49. Hesitation
  50. too much money to replace a oil pan gasket
  51. Code PC0138 96 Deville? O2 sensor which one?
  52. Radiator hose looks warped and rubbing against engine...
  53. Transmission Fluid Under Pressure at Cap?
  54. Pcv Valve
  55. 2000 DeVille Waterpump
  56. Oil leak?..Not oil pan!
  57. Time-Serts for 96 N* Eldorado
  58. Rebuidling Heads on 96 Eldorado N* Engine
  59. Rebuilding Heads for 96 Eldorado
  60. MAP Problem?
  61. ECM/PCM Tuning
  62. New Northstar Motor Breakin ??
  63. Never fill up on gas when...
  64. Another overheat thread: '97 Deville N*
  65. Tune Up
  66. Northstar Timing Chains
  67. Do you have a Time-Sert kit, please help ?
  68. blown head or water pump
  69. 1996 Deville Won't Shift Stays in One gear Need Help Serious Techs
  70. Can a Water Pump Be Bad Without Leaking Or Making Noise?
  71. loose power steering rack
  72. Y / 9 What's the Difference?
  73. Blown head gasket repair? 96 deville
  74. 99 STS Starting hard, STALLING..Help!!
  75. Venting Cooling System?? Drill Hole??
  76. COP - Coil over Plug Question
  77. intake plenum bolt
  78. *98 Deville- Coolant in Oil?
  79. Code P076 on 94 STS and hard shifting help!
  80. 96 deville poping and rough running
  81. Tune Up on North*???
  82. Oil misinformation
  83. Just ordered used engine
  84. Honestly, how much interest in S/C or T/C the N*
  85. Cooling fan "on" temp?
  86. Nitrous?
  87. PCV Rattle
  88. Occasional tranny slippage: Shift solenoid???
  89. 93 eldorado northstar stalls out plz help!
  90. Racing Junk heads
  91. My Caddy won't start.....help!!
  92. Northstar TIME-SERT Kit for Sale.....
  93. 1st Self Work on 1994 STS
  94. How many miles can I drive my 1996? Problems will be?
  95. Engine died & no codes?
  96. Plumbing help on 99 STS
  97. WOT vs 4T80E vs. Timing Chain
  98. Exhaust Vids
  99. 99 STS Starting hard then STALLING..Help!!
  100. How did this happen?
  101. overheats sometimes
  102. Heat / AC cover ?
  103. ignition switch
  104. 94 Concours prob. after EGR cleaning P036
  105. 98 STS Motor mount busted
  106. Help with 98 STS part.
  107. Summit Turbo Mufflers?
  108. advice on correct coolant temps for 92 eldorado
  109. Is your N* running bad, hesitating, missing??
  110. Head gasket replacement
  111. Can DIC messages be cleared for good??
  112. Code I039??
  113. blown head gasket
  114. Strange rhythmic vibration 2000 DTS
  115. Electronic Speedometer Display
  116. Blue Devil Engine & Cooling system Sealer!?
  117. Major problems at 80K miles. Is this normal?
  118. Buzzing and ringing...
  119. Performance mod
  120. "flapper door" replacement?
  121. OBDII Programmers
  122. Limp Home what is it??
  123. 99 N doesnt come with factory strut tower bar?
  124. Before And After....(Mufflers)
  125. witch fuse?
  126. Coolant Change 98 Deville
  127. 96 Sedan Deville-Where is the thermostat located
  128. Engine Codes PC0300 & RF2560
  129. Hotrod with the N*
  130. Engine Swap Info
  131. chugging N*
  132. OK, tired of Headgasket worry...
  133. 96 SLS burning oil like it's gas
  134. Remove the water pump pulley
  135. Tool to remove the water pump pulley
  136. 95 Deville Oil Presure
  137. engine died
  138. Tune Up Time!
  139. 97eldo Need Help
  140. missing bolts on side of oilpan and A-frame...
  141. Torque strut removal and "engine tilt"
  142. Thread inserts?
  143. Can you use 10W-40 in a Northstar
  144. Are AC/Delco parts available only at the dealer?
  145. '98 Deville Rough Idle, Shaking, Stuttering Under Acceleration
  146. How do you properly use pellets? Northstar
  147. Engine seems to misfire a bit when it's cold or damp out
  148. coolant coming out of overflow hose like faucet '97 Eldo
  149. SES Misfiring DTC P0300 My hunch is.....
  150. Oil cooler line leak, 4.6 N*
  151. Tightening time saver and accuracy improved with simple trick
  152. It Happened,the dreaded overheat!
  153. Oil pump - what is the grove and the port for
  154. Any performance parts for the N*?
  155. Intermediate timeing chain shaft - O ring?
  156. 98 Eldo N* 4.6 Overheating
  157. ZEX ordered....
  158. Latest head bolt tightening spec?
  159. Corsa scrwwed me over!
  160. Help with emissions system
  161. Supercharged Northstar
  162. Bbob?? Could you look at this Link?
  163. My water pump belt is dancing around...
  164. Belt Tensioner Condition - Bboby?
  165. Northstar Timing Chain Re-Install & Head Gasket Re-install Feedback........
  166. '98 deville idle
  167. intake kit
  168. WOT advice
  169. SeaFoam Opinions...
  170. GXP-ify my sts?
  171. caprice vs Seville sts
  172. water pump/thermostat crossover housing leaking again
  173. Oil in spark plug chamber, How Bad Is This?
  174. Bizarre Coolant- A/C problem 98 Deville!!!
  175. Anybody got a stock calpack?
  176. Question about climate control.
  177. Remanufactured Northstar Engine
  178. 98 eldo jerking while stopped
  179. Dex Cool.....What going on?
  180. Compression test results 98 Seville
  181. Failed emissions test
  182. just bought 97 eldo std.
  183. Cylinder rings blown on 18 thousand miles??? (cylinder nr 8 totally w/o compression)
  184. Low Coolant Level
  185. Alternative to Platinum Plugs?
  186. Cylinder rings blown on 18 thousand miles??? (cylinder nr 8 totally w/o compression)
  187. Northstar oilpan
  188. 95 deville blown head gasket
  189. 3 qts oil in 3000 miles?
  190. 5% discount on parts!
  191. Things I should do when changing engines
  192. egr bench test / disassembly ?
  193. '98 cam to waterpump belt
  194. direct flow air filter intake
  195. belt
  196. Transmission Problem Not Sure Need Help Bad!!!!!!!
  197. Dex Cool is eating the gaskets?!!!
  198. 2003 SLS ECM code: DTC "P0300
  199. Cleaning fuel injectors
  200. Oversize pistons? Undersize bearings?
  201. HeadGasket
  202. oil smoke -- any suggestions?
  203. New to North stars
  204. AC 41-900 Replaced with the 41-950 plug
  205. Long Crankin
  206. egr valve test?
  207. AC Compressor changeout - success -
  208. Oil Question
  209. Question about the EGR valve
  210. My oil drain plug magnet is missing
  211. Code P1350
  212. aftermarket catalytic converter
  213. 93 STS starting problem
  214. N*--Built by ISUZU????
  215. Few STS questions..engine, suspension??
  216. Average Cost to replace Tranny on N*?
  217. Buying the Juice....
  218. Oil Residue/grease on section of Air filter on 96 N* Why?
  219. Oil level sensor (check oil level)
  220. loud noise in valve cover ?
  221. not licking to stop and slight oil leak
  222. Cracked oil pan...
  223. Magnaflow Hi Flow Cats
  224. Main Acc Drivebelt - Whine & Grind Noises
  225. a few questions i have.
  226. ZDP Right ? Bad ?
  227. Crossover changed, now smoking anit-freeze?
  228. P036 Since changing crossover
  229. Boggy Accel
  230. references for understanding the N*?
  231. Vapor lock
  232. Torque Sequence and Lbs for NStar Heads BBob??
  233. Water Pump Housing
  234. Best High-flow cat
  235. the Northstar and cams???
  236. motor swap 94 to 97 Relocation of air sensor
  237. Quick Question
  238. Probly Not a New Question - Oil Pan Leak
  239. starting problem
  240. Idle surging
  241. Northstar Help
  242. Crank Position Sensor Symptoms and Replacement
  243. Water Pump ?
  244. RWD Northstar? Gofast Parts?
  245. My Idea!!!!!!
  246. Main thread pulled out
  247. Tranny trouble again.
  248. 00 DTS - Starting issue
  249. Timesert or not?
  250. 2000 N* into a '96 DeVille?