: Northstar Engines and System Technical Discussion



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  1. my 93 ETC Eldorado N* has a question for you guys
  2. Which spark plugs to buy?
  3. Thoughts on Dex-Cool and Head Gaskets
  4. 2001 cadillac deville small hesitations
  5. Normal Operating Temperature?
  6. Intermittent starting issue 97Seville SLS
  7. Trouble finding exhaust leak 99 Deville Y motor
  8. Is 235 too hot for a N*star on hilly roads?
  9. Spark Plugs ACDELCO or somthign els ?
  10. Good mechanics to fix head gasket in Oceanside, California area
  11. rough idle, only when in gear and brake on
  12. The first head gasket failure - 1 out of around 90 or so
  13. Tranny problems?
  14. how to install serpentine belt on 98 concours
  15. engine swap
  16. Why high fuel pressure?
  17. 1997 Northstar low speed hesitation and noise
  18. 2001 DeVille DHS / North Star motor losing power
  19. Air-Dam / Belly Splash Guard importance on cooling your N*
  20. Make Your Own Damn Motor Mount
  21. cooling fans inop p01660
  22. Hard shifting 1-2 Help!
  23. Fabricated Torque Strut for the 2000+ Northstar
  24. Horrible Engine Bucking 93 N* Allante
  25. 1998 Seville STS Performance Engine Build - STAGE I
  26. My pulley melted
  27. 01 Deville issues, no codes, no check engine light
  28. '96 Deville Coolant Change
  29. Overheating
  30. White smoke after changing starter (by removing intake manifold)
  31. No current codes but...
  32. N* Powered Camaro
  33. Strange coolant/heat issue 99 STS
  34. 1998 STS engine full of mystery sludge?!
  35. Rough idle-stumble on accel
  36. 95 Eldorado 4.6L Engine stalls
  37. Oil in intake manifold 4.6 1993
  38. 98 Deville Concours Preformance Exhaust???
  39. Engine year compatibility
  40. Sucessful Northstar head gasket repair in a bottle
  41. PCM 09354896 code DCHJ
  42. 1997 4.6 eldorado up hill over heats
  43. fuel injector ohms
  44. 93 sts fuel rail removal tools
  45. Air ride compressor
  46. Overheating??
  47. Codes P0122 and P1122...
  48. Motor mount replaced!! WTF!!!!!
  49. 1996 Seville STS O2 Sensor REMOVAL. CAN"T GET TO IT
  50. 96 Seville where's the 02 Oxygen Sensor Location?? PLEASE HELP WONT PASS EMISSIONS!!!
  51. Long road trips good for the Northstar?
  52. headgaskets a 2nd time?
  53. 97 eldorado w/180,000 miles, should i upgrade to a preformance coil?
  54. 94 eldorado 4.6 - no codes - stumbling/chugging - about to give up
  55. Car not turning over
  56. Codes 340 and 1016 + Fixed A.I.R. with new coil cartridge?
  57. Transmission issue
  58. spark plugs
  59. Yearly engine oil changes really necessary?
  60. Overheating problem
  61. maybe you all know more
  62. What Oil For Northstar Cams and Flat Tappets?
  63. 93 seville sts fuel rail
  64. rear main seal
  65. 93-99 Camshaft picture needed
  66. Seville 03 shaking problems after tune-up.
  67. is it the head gasket again?
  68. Problems with starting the engine
  69. Adding an Electric water Pump 95 Northstar
  70. 1995 northstar for sale *LOCKED*
  71. After WOT Car smells strong of sulfur , rotten eggs
  72. Dexool Questions
  73. 2002 caddy deville
  74. Limp. Mode help
  75. Lifter starting to tap and needs replacing,
  76. Reg oil or Synthetic oil
  77. Coolant Shooting Out
  78. Random light miss during constant hwy cruising
  79. Which PCM??
  80. Fuel Injector O-Rings- Where go?
  81. air in cooling system
  82. Best oil and spark plugs for the northstar 4.6L
  83. Enginge doesn't crank
  84. Help!! Engine idling with hiccups
  85. Tach
  86. the day has come: headgasket
  87. '99 Seville STS
  88. What are the differences between 99> and 00< motors?
  89. Why do these motors break rods?
  90. pretty betty deville
  91. how reliable is northstars limp mode
  92. 1999 deville almost overheating
  93. 3.71 ever better with smaller wheels?
  94. Refrigerant pressure
  95. Minor Coolant Leak
  96. 93 sts misfires, stalls, very rough idle, looking for cause
  97. Any thoughts? Code P1350 p1375
  98. Injector spec for a Y2000 N*
  99. oil cooler
  100. TPS issue: Codes P0122, P1122. Help!
  101. Need Help Installing Air Filter ?
  102. 2002 Deville coolant leak
  103. Blew the head gaskets replacing the motor
  104. 1997 deville stalling at idle
  105. bad headgasket
  106. N* running Hot, Real Hot
  107. 99 deville oil pump
  108. 2001 Northstar AIR Valve
  109. Hydraulic valve-lash adjustor evaluation?
  110. 99 deville - RFA U1000 Help
  111. 91 GMC Sierra, with a Northstar?
  112. 96 96 Northstar Noise and Oil light issue With Video
  113. Speedomoter Reads wrong
  114. 2001 Deville Falls Dead
  115. 98 sls overheating
  116. EVAP Purge Solenoid
  117. P0171, P0174 After replaced Plenum
  118. 97 deville overheating??
  119. Batteries, voltage, power, and Optima
  120. Intake Manifold Removal Snag
  121. Smoke
  122. Come for a vacation while your HG's are replaced
  123. Exhaust manifold swap?
  124. Temp Indicator Question!
  125. Does Anyone Have Any Ideas???
  126. 2001 deville misfire
  127. '98 heads and cams on a 2000 block
  128. Fuel Rail / Fuel Injector Removal
  129. No Spark
  130. Puffs of smoke while revving in park
  131. Warping the Heads???
  132. A/c Discharge Hose
  133. Northstar Valve seals?
  134. Main studs?
  135. Notice of price increase on HG replacement
  136. Mystery Vacuum Hose
  137. Bad Thermostats or blown Head Gasket??? Help
  138. timeserts
  139. Northstar Engine belt
  140. Question about Time Serts?
  141. Iridium Spar Plugs
  142. Stock crank HP?
  143. How much better are the 00+ headgaskets.
  144. 97 ELDARADO w/ blown H/G
  145. allante 9 engine swap to a y engine
  146. Weird transmission behavior - any ideas?
  147. 3" Exhaust all the way back?
  148. FWD Sump swap for RWD?
  149. Early engine number needed
  150. Low oil pressure enigine stop no start
  151. Need Motor Mount R&R procedure in Tech Tips
  152. Crankshaft Position Sensor
  153. 2002 Eldog
  154. changing starter on 1998 deville--have you done it?
  155. 01 STS - Engine cutting out on accel
  156. Ram Air set-up on a 95 STS
  157. NorthStar painting touch up?
  158. Camchain timing
  159. 03 front (left) motor mount help
  160. Oil filter IArea
  161. I may need all forum members help, especially those who have ordered the stud kits.
  162. Do NS engines have an "air regulator"?
  163. Injector Alternatives
  164. Best year for a NorthStar??
  165. How to remove oil filter adapter???
  166. 95 N* intake issue
  167. How to lock flywheel without $150 tool?
  168. 2001 Deville DTS PO300 Random Misfires
  169. Cadillac STS Coolant, service stability system...
  170. anyone ever use Engine Ice Hi-Performance Coolant
  171. 1994 cadillac sts coolant loss
  172. What size of Time-Sert I have to buy ?
  173. 96 Eldo ETC I found the ABS computer cover...how do I get in it?? Do I force it?
  174. 96 Eldo engine sputters and stalls. P0300 and P1380 Engine Misfire.
  175. 01 STS Water pump grumbling noise
  176. Replacement Engine
  177. Coolant loss?
  178. what is the difference between the concourse and regular?
  179. '97 DeVille SES but no current codes?
  180. 95 sts hard shifting/chugging trans?
  181. combustion gas test turned yellow
  182. Northstar Died? no vacuum, no compression on cyl 6.
  183. Myrtle Beach Repair Shop
  184. High oil pressure
  185. Transmission help
  186. P0621
  187. 96 Seville AC system
  188. air box
  189. Engine almost stalls
  190. Help needed before I break something...
  191. Lean Cruise Tune
  192. 95 seville died and wont start
  193. would bad hg's cause the lower radiator hose not to get warm??
  194. Help..Which is #2 cylinder and other question
  195. cam sensor trigger
  196. getting p0741 code please help!!
  197. need help
  198. anyone know what this writing can mean?
  199. Primary timing chain sprocket wear?
  200. Still no short run power
  201. 96 concours crank prob
  202. On Vacation, just a bit of fun street racing....
  203. What is Normal Valve Train Noise?
  204. Fpr
  205. Need urgent help with spark plug wires
  206. PCM codes P0138 and P1139
  207. could this be a hg issue?
  208. barely running Northstar
  209. slightly overheating and coolant leak
  210. Help with TCC replacement parts list
  211. radiator fans not cutting on
  212. saying goodbye
  213. Transmission problems after HG fixed!!!
  214. 1996 STS Engine seized again what could be wrong?
  215. is there supposed to be something in the bottom radiator hoes?
  216. Bad head gasket without any symptoms???
  217. Crank Pulley removal/install
  218. how to check if the headgasket is in good shape before buying?
  219. newb question about tune-ups
  220. 1999 DeVille Coolant leak
  221. Coolant C/O Question
  222. HP rating from a sticker
  223. shelby northstar
  224. Wierd shaped bolt holding in IAC
  225. Check out my Headgasket Job in the car!!!!
  226. Crossover Manifold, Pipe Gasket Part Number
  227. Intake Manifold Cracked at Bolt Heads
  228. For all of us with the fluxuating speedometer / intermittent cruise control
  229. Transmission Strengths/Weaknesses
  230. looking for head gasket repair in tx
  231. Different Headgasket Question
  232. What is the difference between VIN 9 and VIN Y 4.6L Northstars ?
  233. I need to find someone closer than Canada to do my headgaskets !!
  234. Sold one of my '97 to my best friend, now it won't start
  235. 2001 STS vac leak at intake
  236. Overheats less in 3
  237. TERRIBLE Gas mileage "help"
  238. damm am i hard headed...over heating still
  239. still overheating need help...
  240. Found Coolant in the Valley. What could it be???
  241. Difficulty level on swapping a N* 4.6?
  242. Help with engine removal for STS
  243. Can 97 N* lifters be disassembled?
  244. front motor mount
  245. A/C delete pulley
  246. coolant leak
  247. Overpressurize relief valve boot
  248. 97 deville blown head gasket question
  249. The best preventative maintenance for my 97 N*?
  250. Service Stability System