: Northstar Engines and System Technical Discussion



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