: Northstar Engines and System Technical Discussion



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  1. slightly overheating and coolant leak
  2. Help with TCC replacement parts list
  3. radiator fans not cutting on
  4. saying goodbye
  5. Transmission problems after HG fixed!!!
  6. 1996 STS Engine seized again what could be wrong?
  7. is there supposed to be something in the bottom radiator hoes?
  8. Bad head gasket without any symptoms???
  9. Crank Pulley removal/install
  10. how to check if the headgasket is in good shape before buying?
  11. newb question about tune-ups
  12. 1999 DeVille Coolant leak
  13. Coolant C/O Question
  14. HP rating from a sticker
  15. shelby northstar
  16. Wierd shaped bolt holding in IAC
  17. Check out my Headgasket Job in the car!!!!
  18. Crossover Manifold, Pipe Gasket Part Number
  19. Intake Manifold Cracked at Bolt Heads
  20. For all of us with the fluxuating speedometer / intermittent cruise control
  21. Transmission Strengths/Weaknesses
  22. looking for head gasket repair in tx
  23. Different Headgasket Question
  24. What is the difference between VIN 9 and VIN Y 4.6L Northstars ?
  25. I need to find someone closer than Canada to do my headgaskets !!
  26. Sold one of my '97 to my best friend, now it won't start
  27. 2001 STS vac leak at intake
  28. Overheats less in 3
  29. TERRIBLE Gas mileage "help"
  30. damm am i hard headed...over heating still
  31. still overheating need help...
  32. Found Coolant in the Valley. What could it be???
  33. Difficulty level on swapping a N* 4.6?
  34. Help with engine removal for STS
  35. Can 97 N* lifters be disassembled?
  36. front motor mount
  37. A/C delete pulley
  38. coolant leak
  39. Overpressurize relief valve boot
  40. 97 deville blown head gasket question
  41. The best preventative maintenance for my 97 N*?
  42. Service Stability System
  43. duramax1980
  44. 98 NS Brackets
  45. Intake Manifold Removal, '97 SLS
  46. Northstar Bracket
  47. my 1st post transmission problems i think
  48. Priming the oil pump on a northstar engine
  49. 2000 STS, N*interchangibility?
  50. Trying to find Intake Manifold Spacer
  51. PCM wiring without a complete car harness
  52. 99 ETC Weak hot restart?
  53. deville 2000 HG ???
  54. DHS would stall upon starting... would not idle
  55. Why Check the Oil When Hot?
  56. very little coolant circulation...i hope its not a head gasket
  57. '99 STS Oil Smell?
  58. why didnt gm recall northstar engines for head gasket?
  59. Any good Northstar Mechanics in SoCal
  60. radiator drain valve
  61. New Studs to incorporate alignment pins
  62. 1997 Power Steering Pump Questions
  63. 2000 N* Head Gasket probability
  64. 00' STS N* Conversion ???
  65. 99 Deville/Headgasket Issue
  66. Misfire PC0300 Code
  67. Code P0741...Really confused.....Need help!!!
  68. Finally tore the motor apart
  69. 1997 sts stalled, Won't start
  70. HARD loud knock @ acceleration. help
  71. 93 Northstar Dies randomly. HELP!
  72. 95 SLS throttle body vacuum plug
  73. 2006 DTS engine issue
  74. 97 northstar balancer removal
  75. Advice on Northstar Transmission???
  76. oil in the antifreeze & overheating
  77. HG blown 375 days after a $3500 repair
  78. Northstar Coil Bank
  79. Engine wiring harness removal
  80. 97 seville sls coolant loss
  81. 98 deville engine question
  82. STS Blowing Out Oil But From WHERE?????
  83. '93 STS Oil cooler
  84. What kind of seal installer to use?
  85. Northstar head gasket replacement with warranty, Louisville KY - 1500 + parts
  86. how easy is changing the thermostat yourself
  87. Low speed stall
  88. Coolant Issue "00 STS"
  89. failed state inspection because of p0507
  90. Alternator questions....
  91. Bars Leaks Liquid Copper?
  92. which of these codes will cause my service engine light to be on?
  93. 97 Deville oil pan leak
  94. Please Help with long cranking time
  95. high idle
  96. Aftermarket Intake for '99 DeVille base model
  97. 02 Deville rough idle & codes
  98. 1998 Eldorado Head Gasket - 2nd time in 375-days
  99. Started to hear an intermittent grinding noise
  100. $788 To fix P0410 Code
  101. Car Stalled, won't restart
  102. Smell Coolant after Driving??
  103. 1994 STS quit in driveway, seems battery went dead.
  104. 2000 seville sts misfire
  105. Idle Air Control Valve (IAC)
  106. 94 sts intake cover gasket
  107. HG Budget for 97 STS
  108. Help.. 2000 dts tranny blown
  109. 1999 Seville SLS hard start P1350/P1375
  110. Crap!!! Coolant leak! what do I do!?!?!?
  111. 97 Northstar Oil leak
  112. 94 Eldorado Idle problem
  113. Best service manual (rebuilding)
  114. low oil pressure indictator
  115. Any idea what I should pay to get the evap solenoid replaced ?
  116. Thinking of rebuilding motor... questions..
  117. 2001 Deville getting hot
  118. Oil pressure
  119. Cooling system tablets after HG job
  120. HG Jobs for all, anywhere in Canada or USA in my new shop
  121. where to get headgasket job done?
  122. Northstar Engine Gets Gummy?
  123. STS low power
  124. Northstar engine miss
  125. 2002 Deville P3008 code
  126. Real Performance Parts for the L37
  127. HELP outta town with tranny issues
  128. Cooling fans and hard driving- temp spikes
  129. Convert 98 SLS motor into STS motor?
  130. NO Codes but stalls...
  131. Stand-alone Northstar engine/trans for swap
  132. 4T80E solenoid shift replacement
  133. N* Swap with Factory ECM and avoiding DTC's
  134. Vin lookup for engine history
  135. 1999 STS Traction Control off......Unable to turn it on.
  136. 98 deville no fan / tech 2 commanded fan on
  137. 1999 Cadillac Seville OVERHEATING :(
  138. Any differences in an Export N* Engine and a Domestic One?
  139. To much Antifreez
  140. Synthetic or Regular Oil in 08 Escalade ESV?
  141. Stalling when wet
  142. 1998 STS : Code v
  143. 02 Deville plenum question
  144. MSD Timing Controller - Question for AJ
  145. Cranshaft Main Bolts
  146. Rear Main Seal Install
  147. Where to find coolant test?
  148. Can I put a 2001 Northstar in a 1997 Eldorado?
  149. Major coolant leak
  150. I think i'm ready
  151. what to look for buying a used northstar powered car
  152. Happy ending to overheating problem
  153. 2000 sts
  154. Fully Polished Aluminum Strut Tower Brace for 98+Seville and 00+ Deville
  155. o2 sensor thread repair
  156. Bypass AC pump 94 Eldorado
  157. Northstar oil leak, main bolts
  158. 1993 Eldorado Northstar running rough
  159. Limp Mode?
  160. STS N* Rough Idle/Miss at Startup
  161. northstar aurora alternator
  162. Swap 4.9l v8 and 4.6l v8 northstar
  163. '99 STS stuck water water pump
  164. Water pump drive pulley
  165. heater on bench 1?
  166. Hello all
  167. wide engine temp swing
  168. Oil pan gasket
  169. I allmost died in my sts !!!!!, P065 drives itself
  170. 1993 seville STS
  171. cooling fan electrical diagram
  172. Fuel Injectors Revisited
  173. head gasket replacement in louisville kentucky area
  174. Cam Replacement in Car
  175. Northstar block #'s info needed on a used engine.
  176. oil filter for northstar
  177. 2000 sls overheating
  178. SLS overheating help? please?
  179. testing for bad HG
  180. 94 STS Coolant leak between block and flywheel
  181. Valve cover gaskets
  182. Hitting rev limiter in idle after startup
  183. Bad news Very Bad news
  184. EGR symptoms
  185. fuel pumps
  186. manifold pressure sensor or mat sensor
  187. Transaxle interchange
  188. TSB for Oil Consumption
  189. N*** PCM hacking Help
  190. Increasing fuel efficiency
  191. 94 Eldorado 4.6 High Idle
  192. photo shop help
  193. high engine rpm at start up
  194. Is it possible to have digital temperature display on 2002 deville ?
  195. 99 STS metallic ticking noise from valve area
  196. Bonneville GXP 1/4 mile times
  197. Time Serts, Norm's, SureGrip Stud Kit??????
  198. p080
  199. 2004 Deville 275hp... a good buy?
  200. I would like to 'update' the Performance Parts Mega-Post
  201. Questions for Ranger and Submariner409
  202. Cleaning Engine what do i cover?
  203. Any Ideas? No codes, backfire, sputter & parking brake get stuck
  204. dropping cradle: what would you replace preemptively
  205. HG and Timesert in car
  206. 1993 Cadillac Seville STS 4.6l engine bog
  207. Shoud i replace input speed sensor on 2002 deville 140k
  208. Go with studs and get warranty on a DIY HG job
  209. 2002 deville HEAD JOB and MORE --PLEASE HELP
  210. Help. 99 sts dash clicking?
  211. The ever present "miss"
  212. new engine ...?
  213. Code P0603
  214. Fire!!! Eh, not so bad..
  215. Fuel pump removal pictures
  216. No more HG jobs. I'm finished.
  217. More problems after a HG job- or are they?
  218. 02 dts high idle prob
  219. What 2 Do About GM's OHC V8 Engine.... How about the Mainstreaming of the 4.4L SC NS?
  220. 94-99 vs. 2000+ N* Oil issues
  221. RWD Northstar
  222. Running a 2005 N* on a 2006 N* PCM
  223. intake blow off flap
  224. PO155 (HO2S) Code
  225. 95 devile no heat on driver side help
  226. Clever stuff...I think?
  227. trading up
  228. Has anyone tried to put sc 3800 v6?
  229. What gives ?
  230. What is the probability of head gasket failure?
  231. Fuel Pump removal
  232. Like my N* but
  233. Motor will be coming back out after HG job!
  234. Check engine light ?
  235. 1997 deville hard start warm engine
  236. Low mileage Northstar
  237. 00 DTS Falls Flat on Face
  238. Fuel Pump repair kit
  239. Compression test for a head gasket failure
  240. Built Buick Lucerne (400HP Northstar Engine)
  241. Head Gasket Repair in Alaska
  242. Headgasket test kit ?
  243. 97 & 99 deville engine swap??????
  244. Problems After HG job!
  245. Cooling Fans
  246. P0300 and just filled coolant
  247. 01 northstar for sale
  248. northstar power
  249. 1998 STS stalling at idle
  250. New '98 Deville Owner with coolant questions