: Northstar Engines and System Technical Discussion



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  1. 97 Deville wont start in the morning
  2. Stud Kit Help
  3. A kitten caused my Serpentine Belt to come off
  4. Check Coolant Level
  5. Cleaning Heads and Block
  6. Over Heating... HELP!!!
  7. 2001 deville rough idle
  8. engine grounds
  9. manifold blowoff
  10. sealant for blown heads?
  11. 1994 STS Overheating (I think)...
  12. Block Identification Numbers
  13. Snapping noise when coming to a stop..Answered Finally!!!
  14. Overheating Eldorado Help
  15. need some help
  16. 05' STS. Little help with P0102 please
  17. 2000 DTS P0300 code
  18. Head gasket repair
  19. P041 1994 deville concours
  20. Quick Oil Question
  21. rough idle, no codes, rough start
  22. coolant leak
  23. STS Radiator Hose Replacement
  24. 95 Eldorado ETC - Cooling system
  25. power steering line: o-ring?
  26. broken bolt in oil pan
  27. Water pump & crossover gasket - $$$$
  28. Help Me Please
  29. Rad Cap PSI was wrong
  30. Coolant Leak. Where's it coming from?
  31. Water pump Purge line?
  32. 5w30 or 0w30
  33. Destroying a N* Engine
  34. N* engine removal - newbee
  35. 02 DHS overheating
  36. TCC Stuck Off
  37. No clue what to do. Northstar blues
  38. problem with map sensors
  39. 2001 caddy sts seville tranny
  40. What is going on with the car?
  41. Spark Plug Wires
  42. "Hush" or "Gasp" Before Expected Throttle Response
  43. my 93 ETC Eldorado N* has a question for you guys
  44. Which spark plugs to buy?
  45. Thoughts on Dex-Cool and Head Gaskets
  46. 2001 cadillac deville small hesitations
  47. Normal Operating Temperature?
  48. Intermittent starting issue 97Seville SLS
  49. Trouble finding exhaust leak 99 Deville Y motor
  50. Is 235 too hot for a N*star on hilly roads?
  51. Spark Plugs ACDELCO or somthign els ?
  52. Good mechanics to fix head gasket in Oceanside, California area
  53. rough idle, only when in gear and brake on
  54. The first head gasket failure - 1 out of around 90 or so
  55. Tranny problems?
  56. how to install serpentine belt on 98 concours
  57. engine swap
  58. Why high fuel pressure?
  59. 1997 Northstar low speed hesitation and noise
  60. 2001 DeVille DHS / North Star motor losing power
  61. Air-Dam / Belly Splash Guard importance on cooling your N*
  62. Make Your Own Damn Motor Mount
  63. cooling fans inop p01660
  64. Hard shifting 1-2 Help!
  65. Fabricated Torque Strut for the 2000+ Northstar
  66. Horrible Engine Bucking 93 N* Allante
  67. 1998 Seville STS Performance Engine Build - STAGE I
  68. My pulley melted
  69. 01 Deville issues, no codes, no check engine light
  70. '96 Deville Coolant Change
  71. Overheating
  72. White smoke after changing starter (by removing intake manifold)
  73. No current codes but...
  74. N* Powered Camaro
  75. Strange coolant/heat issue 99 STS
  76. 1998 STS engine full of mystery sludge?!
  77. Rough idle-stumble on accel
  78. 95 Eldorado 4.6L Engine stalls
  79. Oil in intake manifold 4.6 1993
  80. 98 Deville Concours Preformance Exhaust???
  81. Engine year compatibility
  82. Sucessful Northstar head gasket repair in a bottle
  83. PCM 09354896 code DCHJ
  84. 1997 4.6 eldorado up hill over heats
  85. fuel injector ohms
  86. 93 sts fuel rail removal tools
  87. Air ride compressor
  88. Overheating??
  89. Codes P0122 and P1122...
  90. Motor mount replaced!! WTF!!!!!
  91. 1996 Seville STS O2 Sensor REMOVAL. CAN"T GET TO IT
  92. 96 Seville where's the 02 Oxygen Sensor Location?? PLEASE HELP WONT PASS EMISSIONS!!!
  93. Long road trips good for the Northstar?
  94. headgaskets a 2nd time?
  95. 97 eldorado w/180,000 miles, should i upgrade to a preformance coil?
  96. 94 eldorado 4.6 - no codes - stumbling/chugging - about to give up
  97. Car not turning over
  98. Codes 340 and 1016 + Fixed A.I.R. with new coil cartridge?
  99. Transmission issue
  100. spark plugs
  101. Yearly engine oil changes really necessary?
  102. Overheating problem
  103. maybe you all know more
  104. What Oil For Northstar Cams and Flat Tappets?
  105. 93 seville sts fuel rail
  106. rear main seal
  107. 93-99 Camshaft picture needed
  108. Seville 03 shaking problems after tune-up.
  109. is it the head gasket again?
  110. Problems with starting the engine
  111. Adding an Electric water Pump 95 Northstar
  112. 1995 northstar for sale *LOCKED*
  113. After WOT Car smells strong of sulfur , rotten eggs
  114. Dexool Questions
  115. 2002 caddy deville
  116. Limp. Mode help
  117. Lifter starting to tap and needs replacing,
  118. Reg oil or Synthetic oil
  119. Coolant Shooting Out
  120. Random light miss during constant hwy cruising
  121. Which PCM??
  122. Fuel Injector O-Rings- Where go?
  123. air in cooling system
  124. Best oil and spark plugs for the northstar 4.6L
  125. Enginge doesn't crank
  126. Help!! Engine idling with hiccups
  127. Tach
  128. the day has come: headgasket
  129. '99 Seville STS
  130. What are the differences between 99> and 00< motors?
  131. Why do these motors break rods?
  132. pretty betty deville
  133. how reliable is northstars limp mode
  134. 1999 deville almost overheating
  135. 3.71 ever better with smaller wheels?
  136. Refrigerant pressure
  137. Minor Coolant Leak
  138. 93 sts misfires, stalls, very rough idle, looking for cause
  139. Any thoughts? Code P1350 p1375
  140. Injector spec for a Y2000 N*
  141. oil cooler
  142. TPS issue: Codes P0122, P1122. Help!
  143. Need Help Installing Air Filter ?
  144. 2002 Deville coolant leak
  145. Blew the head gaskets replacing the motor
  146. 1997 deville stalling at idle
  147. bad headgasket
  148. N* running Hot, Real Hot
  149. 99 deville oil pump
  150. 2001 Northstar AIR Valve
  151. Hydraulic valve-lash adjustor evaluation?
  152. 99 deville - RFA U1000 Help
  153. 91 GMC Sierra, with a Northstar?
  154. 96 96 Northstar Noise and Oil light issue With Video
  155. Speedomoter Reads wrong
  156. 2001 Deville Falls Dead
  157. 98 sls overheating
  158. EVAP Purge Solenoid
  159. P0171, P0174 After replaced Plenum
  160. 97 deville overheating??
  161. Batteries, voltage, power, and Optima
  162. Intake Manifold Removal Snag
  163. Smoke
  164. Come for a vacation while your HG's are replaced
  165. Exhaust manifold swap?
  166. Temp Indicator Question!
  167. Does Anyone Have Any Ideas???
  168. 2001 deville misfire
  169. '98 heads and cams on a 2000 block
  170. Fuel Rail / Fuel Injector Removal
  171. No Spark
  172. Puffs of smoke while revving in park
  173. Warping the Heads???
  174. A/c Discharge Hose
  175. Northstar Valve seals?
  176. Main studs?
  177. Notice of price increase on HG replacement
  178. Mystery Vacuum Hose
  179. Bad Thermostats or blown Head Gasket??? Help
  180. timeserts
  181. Northstar Engine belt
  182. Question about Time Serts?
  183. Iridium Spar Plugs
  184. Stock crank HP?
  185. How much better are the 00+ headgaskets.
  186. 97 ELDARADO w/ blown H/G
  187. allante 9 engine swap to a y engine
  188. Weird transmission behavior - any ideas?
  189. 3" Exhaust all the way back?
  190. FWD Sump swap for RWD?
  191. Early engine number needed
  192. Low oil pressure enigine stop no start
  193. Need Motor Mount R&R procedure in Tech Tips
  194. Crankshaft Position Sensor
  195. 2002 Eldog
  196. changing starter on 1998 deville--have you done it?
  197. 01 STS - Engine cutting out on accel
  198. Ram Air set-up on a 95 STS
  199. NorthStar painting touch up?
  200. Camchain timing
  201. 03 front (left) motor mount help
  202. Oil filter IArea
  203. I may need all forum members help, especially those who have ordered the stud kits.
  204. Do NS engines have an "air regulator"?
  205. Injector Alternatives
  206. Best year for a NorthStar??
  207. How to remove oil filter adapter???
  208. 95 N* intake issue
  209. How to lock flywheel without $150 tool?
  210. 2001 Deville DTS PO300 Random Misfires
  211. Cadillac STS Coolant, service stability system...
  212. anyone ever use Engine Ice Hi-Performance Coolant
  213. 1994 cadillac sts coolant loss
  214. What size of Time-Sert I have to buy ?
  215. 96 Eldo ETC I found the ABS computer cover...how do I get in it?? Do I force it?
  216. 96 Eldo engine sputters and stalls. P0300 and P1380 Engine Misfire.
  217. 01 STS Water pump grumbling noise
  218. Replacement Engine
  219. Coolant loss?
  220. what is the difference between the concourse and regular?
  221. '97 DeVille SES but no current codes?
  222. 95 sts hard shifting/chugging trans?
  223. combustion gas test turned yellow
  224. Northstar Died? no vacuum, no compression on cyl 6.
  225. Myrtle Beach Repair Shop
  226. High oil pressure
  227. Transmission help
  228. P0621
  229. 96 Seville AC system
  230. air box
  231. Engine almost stalls
  232. Help needed before I break something...
  233. Lean Cruise Tune
  234. 95 seville died and wont start
  235. would bad hg's cause the lower radiator hose not to get warm??
  236. Help..Which is #2 cylinder and other question
  237. cam sensor trigger
  238. getting p0741 code please help!!
  239. need help
  240. anyone know what this writing can mean?
  241. Primary timing chain sprocket wear?
  242. Still no short run power
  243. 96 concours crank prob
  244. On Vacation, just a bit of fun street racing....
  245. What is Normal Valve Train Noise?
  246. Fpr
  247. Need urgent help with spark plug wires
  248. PCM codes P0138 and P1139
  249. could this be a hg issue?
  250. barely running Northstar