: Northstar Engines and System Technical Discussion



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  1. Headgasket/Rod Bearings/Carbon Buildup
  2. Fuel Filter Location?
  3. help 2000 deville servive engine light
  4. Coolant system seal tabs
  5. Emission Code E013
  6. Northstar timesert kit for sale,$175.00+shipping.
  7. Best oil for my geezer
  8. 93 STS with VSS issues
  9. radiator replacement?
  10. PCV Valve location?
  11. Where is the IAC module?
  12. K&N Filter for STS and Eldorado
  13. 93 4.6 dies at random then restarts
  14. Purge tank cap fiasco
  15. What does it take to swap intake manifolds?
  16. Oxygen Sensors......Need help soon!!!
  17. which hose does the bars leak go.
  18. 97 eld0 etc
  19. engine ID
  20. Interior dimmer location on 03 Deville?
  21. Blown Coolent crossover gasket....$$$$
  22. Missing Bracket or support
  23. Check Coolant Level
  24. 93 Eldo Overheats New Thermostat Didn't help
  25. Where to find tie bars?
  26. What's wrong in these pictures?
  27. 94 Northstar Oil Leak
  28. Northstar 4.0 mods?
  29. Engine Hesitation ?
  30. shift points???
  31. Pcm part number ???
  32. Northstar Engine Facts & Tid Bits
  33. oil filter 96 sts help
  34. Aurora airbox wrapped!
  35. Oil leaking on a 200K miles engine. Is the engine still good?
  36. Corsa Performance
  37. intermittent misfire on #1 cylinder. Help Please.
  38. Rotten Egg smell....
  39. 97 concours hard starting
  40. Bbob-Interesting facts of Northstar engines
  41. Engine stalled and wont restart!!!
  42. Northstar hesitation
  43. '96 Northstar Vs. '97 Northstar
  44. fuel injectors???
  45. Tranny clunk in 98 sls
  46. Head Bolt Torque
  47. Was driving and caddy cut off?
  48. 97 STS and EGR
  49. Oil for Northstar 7.5 or 8.0
  50. Low Refrigerant Msg: 2 or 3 cans?
  51. Northstar head gasket parts.
  52. 94 Concourse Transmission
  53. 97 Eldorado Fuel Pump gone bad?
  54. im new want to know some things
  55. BBob, 2 stroke oil in gas to preserve...
  56. Reprogramming Computer
  57. which plug is right?
  58. bbob - Correct Crank Scraper/Placement
  59. want RWD N*
  60. What does a PCV valve do?
  61. 97 deville- Loud clunk followed by surging....
  62. Rattle in front of engine on first start up? Help!!
  63. Looking for performance items for the Northstar
  64. New revised Head Torque Procedure
  65. Torque Converter Stall for STS
  66. Carbon knock and 1 quart per 1.000 miles
  67. Stumped!! - problem setting cam timing
  68. Cleaned throttle body, lots of gunk...
  69. 94 STS Rough Idle, Jerking in overdrive with no load on moter!
  70. 96 Deville o2 Sensor question
  71. o2 sensor problems
  72. How common are the "Z" speed rated NorthStar's
  73. Diagnostic Code help
  74. Hard Shifting Problem 98 STS
  75. New 04" 4.6 vs previous 3 less MPG?
  76. Walker Quiet Flow Mufflers?
  77. Hard starting '96 Seville STS - Advice sought
  78. Oil in intake manifold (eek!?)
  79. Birds nest under my intake. 94 STS
  80. engine swapp
  81. northstar 4.6 1994 eldorado touring coupe
  82. 94 STS Where is my egr valve!
  83. Safety Recall: Aurora 4.0 - Fuel rail leaks
  84. 2000 Deville Stalls when idleing in drive
  85. 4.6 northstar engine
  86. Cases resealed and new style pistons?
  87. horrible surging
  88. AC blower keeps cutting off
  89. Supercharged, need 93-95 4.6L intake manifold top cover to modify HELP!!
  90. 97 Y NorthStar backfire
  91. abs/tcs fuse
  92. 93 STS with 4.6 sounds runs like crap, dies constantly!
  93. Dropping cradle - where's the other wiring?
  94. Trans too full!!!96 eldo
  95. Whats this all about???
  96. Is adding too much oil bad?
  97. More Power *grunt*!!!!
  98. What's wrong with my ABS
  99. fuel pump 96 eldo
  100. Aurora Recall (Fuel Rail)
  101. possibility of turbocharging a 94
  102. Whats the correct way to remove Trans ???
  103. timesert vs. helicoil
  104. 96 eldo ,problems abound
  105. Difference between 275 & 300 HP from # on Valve/cam Cover
  106. Resetting "low refridgerant" code??
  107. If you can get a filter from the dealer
  108. 2 codes
  109. What does the 97 STS Run?
  110. Need northstar balancer install tools.
  111. Long cranking, poor start
  112. 1996 Deville PCM 0717
  113. Case halves repair at 100,000 miles?
  114. Can't track down these error codes
  115. Engine Tick after oil change - very concerned
  116. F/S 2000 Northstar engine
  117. Jury rigged solution
  118. anybody watch TLC Rides yesterday?
  119. Help! Theft System Problem - Can't Start My 97 Concours
  120. A/C Question
  121. Bad Smog result
  122. 4.9 better than Northstar?
  123. Two Error Codes
  124. WTB: 4.6L Northstar intake manifold (1993 Eldorado)
  125. Northstar Intake manifold
  126. 4.0 cam swap/exhaust size
  127. DTC P1377 - IC Cam Pulse To 4X Reference Pulse
  128. Can someone tell me what GM PN's 1052080 & 12345382 are?
  129. OK Here Comes The Problems before summer.
  130. not so, everyday cadillac problems
  131. need help Removing Harmonic Balancer
  132. Very low refridgerant?? Please advise.
  133. Coolant Problem??
  134. Click noise when AC is on?
  135. how do i remove the...
  136. bottom pulley wabbles
  137. BCM causing rough idle?
  138. Water Pump Drive Pulley
  139. 98 SLS Trans/mounts Questions
  140. So how many people have had overheating/bad head gasket problems?
  141. Car Rides Horribly!
  142. PO85 Fix
  143. NEW exhaust idea...
  144. Northstar vs 4.9
  145. 4T80e questions
  146. check engine light
  147. Rough Idle
  148. More oil consumption
  149. Is it stupid to put in a new engine?????
  150. Advise on De Ville 97
  151. Oil filter
  152. Service Manuals
  153. Transmission Valve (or what the dealer told me)
  154. wierd idle
  155. Miracle fuel additive stopped noise and oil consumption
  156. 95 eldorado oil questions
  157. 95 Harness --> 93 Block/sensors?
  158. Kit Car w/Northstar, Engine VIN codes
  159. EGR Valve and Throttle Body
  160. Heater core?
  161. sticky gas pedal/rough idling/accelerating
  162. Head Bolts????
  163. OEM Liquid Sealant at Case Half Seal?
  164. Throttle Body, Rough Idle
  165. 97 air box mod?
  166. throttle body
  167. Head Gasket Repair - Clean Up of Head, Block & Combustion Chambers?
  168. How good is the 4.6L N*
  169. Seville ECM Codes
  170. Trouble Code on '96 Eldorado
  171. tranny probs need help
  172. Unidentified noise in front driver side wheel on a hard right
  173. spark plug gap?
  174. need timesert kit for my 94 n*
  175. 1993 Northstar engine knock
  176. Code IRC B1771
  177. Excessive Crank Time - Advice Needed
  178. Cost Efficient Mods for '98 STS?
  179. Pls help! How much $ should it cost to repair.....
  180. trouble code retrival
  181. Iridium spark plugs
  182. Sedan Deville Diag Codes: How to interpret?
  183. Boosted caddys
  184. 95 sts,pcm?
  185. Northstar Mechanic
  186. 96 ETC code problems
  187. Codes
  188. Help with Timing Chain Removal
  189. help me with my ....
  190. It just quits (dies) restarts fine.
  191. fuel economy
  192. radiator with holes
  193. supercharged caddy?
  194. A few questions 2
  195. A little more Fuel or air needed.
  196. Is there anywhere to get the specs for a 4.6L Northstar
  197. Brake Fluid Flush
  198. GM part no. for timesert inserts?
  199. God ! please help me before my caddy kills me..
  200. 2000+ NorthStar modified to fit 1994 = success
  201. Lots O'Codes HELP!!!
  202. Coolant Change
  203. cruise control not working properly!
  204. Need help with codes
  205. i smell coolant, is my water pump bad?
  206. Crank micropolishing/where to buy parts?
  207. New Lights
  208. O2 sensor
  209. 95 eldorado Northstar over heats
  210. What to do, what to do...
  211. Main Bearing Replacement?
  212. Rear Main Seal Installer
  213. Looking for a few answers
  214. Help!!!
  215. 94 Seville
  216. My 1996 Sedan Deville won't go over 40 mph?
  217. Northstar and CHRFAB article
  218. 94 eldo compression test
  219. Ignition Wires
  220. Ran my STS again
  221. how long....
  222. 1994 Deville oil pan gasket leak
  223. Leaky oil pan gasket on 94 N* eldo
  224. Service Ride Control and traction control
  225. Some initial worries for 94 eldo tc
  226. some problems
  227. computer readout !!!
  228. Thottle Body
  229. Where to find a Northstar engine
  230. Rough Idel
  231. My 99 STS Overheated
  232. Engine Mounts
  233. oil pan gasket
  234. 94 Deville Concourse Billowing White Smoke
  235. cheap perfomance stuff...
  236. Coolant smell from heater; how screwed am I?
  237. Changing the fuel filter
  238. How to do a tuneup on a North*
  239. '96 SLS: IPC Option C problem
  240. Northstar Oil Usage
  241. Buzzing from turn signal
  242. Engine Data Analysis help
  243. 94 eldorado W/coolant in oil
  244. Growe3, Engine Removal Questions
  245. My .02 on Carbon
  246. N* plugs & wires: DIY or leave it for the pros?
  247. MAP sensor
  248. Lucus Products? Fuel Injector Cleaner
  249. Need Northstar Advic
  250. questions before installing new idle speed motor