: Northstar Engines and System Technical Discussion



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  1. Vote for CTS-V NOW
  2. Northstar idle
  3. Is my A/C compressor toast?
  4. Performance Chip!!!
  5. A/C Compressor Clutch
  6. coolant change procedure
  7. $4500 to replace head gasket...
  8. 94 concourse running rough
  9. 94 coolant leak
  10. Engine Out Bottom or Top?
  11. Water Pumps
  12. p076, transmission pressure solenoid help
  13. Transmission pan and Intake Manifold cover
  14. No TCC lock-up
  15. Trans. going out?
  16. Northstar worries
  17. dloch - &others swapping intakes...
  18. Bonneville GXP owners FYI
  19. bbob- help!
  20. Low oil pressure?
  21. 2x4s - raising the intake manifold
  22. Bbob
  23. I figured it out!!!...Almost..:(
  24. Northstar error codes, OBD1 and OBD2
  25. after market chip up date?
  26. I think I'm cross-eyed
  27. Code T061 What Is It? How To Diag?
  28. N* cylinder heads question, Bbob
  29. finally got a code help help
  30. Norstar Leaking Enginer ...............CURE !
  31. 1995 eldorado northstar
  32. high idle
  33. Any word on the S/C project?
  34. 7 seconds before start.,
  35. Started removing the northstar
  36. Coolant Temp
  37. does a Northstar have lifters-how to replace
  38. 4.6 Northstar Engine mod question.
  39. All kinds of noises
  40. I Think I Threw a Rod
  41. 2000 Eldorado using oil???
  42. Diagnostic codes
  43. Northstar aftermarket and tuneability questions
  44. Diesel oil in gasoline engines...BBob, opinion?
  45. Lawrence Look
  46. what is wrong my engine or converter
  47. Bbob Look
  48. 93 Eldo cuts out on accel and shorts in Radio
  49. Seville not running right
  50. Alternating Types of OIL
  51. 96 Eldo jerking
  52. Head torque sequence
  53. Tool Hunt
  54. Tire Recommendation For 2000 Deville
  55. Have Questions About An Eldorado
  56. Swapping heads 94 -> 96
  57. Trans or Oil Cooler ?
  58. Oil leak is from pan
  59. me=moron
  60. Different Oil for Leaky Seals?
  61. Head vs. intake manifold gasket/overheating
  62. 98 STS spewed coolant...
  63. n*= @#$%^&*(
  64. 97 concours steering
  65. change trans fluid?
  66. HELP!!! my eldorados crazy.
  67. Head Work
  68. Headgasket/Rod Bearings/Carbon Buildup
  69. Fuel Filter Location?
  70. help 2000 deville servive engine light
  71. Coolant system seal tabs
  72. Emission Code E013
  73. Northstar timesert kit for sale,$175.00+shipping.
  74. Best oil for my geezer
  75. 93 STS with VSS issues
  76. radiator replacement?
  77. PCV Valve location?
  78. Where is the IAC module?
  79. K&N Filter for STS and Eldorado
  80. 93 4.6 dies at random then restarts
  81. Purge tank cap fiasco
  82. What does it take to swap intake manifolds?
  83. Oxygen Sensors......Need help soon!!!
  84. which hose does the bars leak go.
  85. 97 eld0 etc
  86. engine ID
  87. Interior dimmer location on 03 Deville?
  88. Blown Coolent crossover gasket....$$$$
  89. Missing Bracket or support
  90. Check Coolant Level
  91. 93 Eldo Overheats New Thermostat Didn't help
  92. Where to find tie bars?
  93. What's wrong in these pictures?
  94. 94 Northstar Oil Leak
  95. Northstar 4.0 mods?
  96. Engine Hesitation ?
  97. shift points???
  98. Pcm part number ???
  99. Northstar Engine Facts & Tid Bits
  100. oil filter 96 sts help
  101. Aurora airbox wrapped!
  102. Oil leaking on a 200K miles engine. Is the engine still good?
  103. Corsa Performance
  104. intermittent misfire on #1 cylinder. Help Please.
  105. Rotten Egg smell....
  106. 97 concours hard starting
  107. Bbob-Interesting facts of Northstar engines
  108. Engine stalled and wont restart!!!
  109. Northstar hesitation
  110. '96 Northstar Vs. '97 Northstar
  111. fuel injectors???
  112. Tranny clunk in 98 sls
  113. Head Bolt Torque
  114. Was driving and caddy cut off?
  115. 97 STS and EGR
  116. Oil for Northstar 7.5 or 8.0
  117. Low Refrigerant Msg: 2 or 3 cans?
  118. Northstar head gasket parts.
  119. 94 Concourse Transmission
  120. 97 Eldorado Fuel Pump gone bad?
  121. im new want to know some things
  122. BBob, 2 stroke oil in gas to preserve...
  123. Reprogramming Computer
  124. which plug is right?
  125. bbob - Correct Crank Scraper/Placement
  126. want RWD N*
  127. What does a PCV valve do?
  128. 97 deville- Loud clunk followed by surging....
  129. Rattle in front of engine on first start up? Help!!
  130. Looking for performance items for the Northstar
  131. New revised Head Torque Procedure
  132. Torque Converter Stall for STS
  133. Carbon knock and 1 quart per 1.000 miles
  134. Stumped!! - problem setting cam timing
  135. Cleaned throttle body, lots of gunk...
  136. 94 STS Rough Idle, Jerking in overdrive with no load on moter!
  137. 96 Deville o2 Sensor question
  138. o2 sensor problems
  139. How common are the "Z" speed rated NorthStar's
  140. Diagnostic Code help
  141. Hard Shifting Problem 98 STS
  142. New 04" 4.6 vs previous 3 less MPG?
  143. Walker Quiet Flow Mufflers?
  144. Hard starting '96 Seville STS - Advice sought
  145. Oil in intake manifold (eek!?)
  146. Birds nest under my intake. 94 STS
  147. engine swapp
  148. northstar 4.6 1994 eldorado touring coupe
  149. 94 STS Where is my egr valve!
  150. Safety Recall: Aurora 4.0 - Fuel rail leaks
  151. 2000 Deville Stalls when idleing in drive
  152. 4.6 northstar engine
  153. Cases resealed and new style pistons?
  154. horrible surging
  155. AC blower keeps cutting off
  156. Supercharged, need 93-95 4.6L intake manifold top cover to modify HELP!!
  157. 97 Y NorthStar backfire
  158. abs/tcs fuse
  159. 93 STS with 4.6 sounds runs like crap, dies constantly!
  160. Dropping cradle - where's the other wiring?
  161. Trans too full!!!96 eldo
  162. Whats this all about???
  163. Is adding too much oil bad?
  164. More Power *grunt*!!!!
  165. What's wrong with my ABS
  166. fuel pump 96 eldo
  167. Aurora Recall (Fuel Rail)
  168. possibility of turbocharging a 94
  169. Whats the correct way to remove Trans ???
  170. timesert vs. helicoil
  171. 96 eldo ,problems abound
  172. Difference between 275 & 300 HP from # on Valve/cam Cover
  173. Resetting "low refridgerant" code??
  174. If you can get a filter from the dealer
  175. 2 codes
  176. What does the 97 STS Run?
  177. Need northstar balancer install tools.
  178. Long cranking, poor start
  179. 1996 Deville PCM 0717
  180. Case halves repair at 100,000 miles?
  181. Can't track down these error codes
  182. Engine Tick after oil change - very concerned
  183. F/S 2000 Northstar engine
  184. Jury rigged solution
  185. anybody watch TLC Rides yesterday?
  186. Help! Theft System Problem - Can't Start My 97 Concours
  187. A/C Question
  188. Bad Smog result
  189. 4.9 better than Northstar?
  190. Two Error Codes
  191. WTB: 4.6L Northstar intake manifold (1993 Eldorado)
  192. Northstar Intake manifold
  193. 4.0 cam swap/exhaust size
  194. DTC P1377 - IC Cam Pulse To 4X Reference Pulse
  195. Can someone tell me what GM PN's 1052080 & 12345382 are?
  196. OK Here Comes The Problems before summer.
  197. not so, everyday cadillac problems
  198. need help Removing Harmonic Balancer
  199. Very low refridgerant?? Please advise.
  200. Coolant Problem??
  201. Click noise when AC is on?
  202. how do i remove the...
  203. bottom pulley wabbles
  204. BCM causing rough idle?
  205. Water Pump Drive Pulley
  206. 98 SLS Trans/mounts Questions
  207. So how many people have had overheating/bad head gasket problems?
  208. Car Rides Horribly!
  209. PO85 Fix
  210. NEW exhaust idea...
  211. Northstar vs 4.9
  212. 4T80e questions
  213. check engine light
  214. Rough Idle
  215. More oil consumption
  216. Is it stupid to put in a new engine?????
  217. Advise on De Ville 97
  218. Oil filter
  219. Service Manuals
  220. Transmission Valve (or what the dealer told me)
  221. wierd idle
  222. Miracle fuel additive stopped noise and oil consumption
  223. 95 eldorado oil questions
  224. 95 Harness --> 93 Block/sensors?
  225. Kit Car w/Northstar, Engine VIN codes
  226. EGR Valve and Throttle Body
  227. Heater core?
  228. sticky gas pedal/rough idling/accelerating
  229. Head Bolts????
  230. OEM Liquid Sealant at Case Half Seal?
  231. Throttle Body, Rough Idle
  232. 97 air box mod?
  233. throttle body
  234. Head Gasket Repair - Clean Up of Head, Block & Combustion Chambers?
  235. How good is the 4.6L N*
  236. Seville ECM Codes
  237. Trouble Code on '96 Eldorado
  238. tranny probs need help
  239. Unidentified noise in front driver side wheel on a hard right
  240. spark plug gap?
  241. need timesert kit for my 94 n*
  242. 1993 Northstar engine knock
  243. Code IRC B1771
  244. Excessive Crank Time - Advice Needed
  245. Cost Efficient Mods for '98 STS?
  246. Pls help! How much $ should it cost to repair.....
  247. trouble code retrival
  248. Iridium spark plugs
  249. Sedan Deville Diag Codes: How to interpret?
  250. Boosted caddys