: Northstar Engines and System Technical Discussion



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  1. Fpr
  2. Need urgent help with spark plug wires
  3. PCM codes P0138 and P1139
  4. could this be a hg issue?
  5. barely running Northstar
  6. slightly overheating and coolant leak
  7. Help with TCC replacement parts list
  8. radiator fans not cutting on
  9. saying goodbye
  10. Transmission problems after HG fixed!!!
  11. 1996 STS Engine seized again what could be wrong?
  12. is there supposed to be something in the bottom radiator hoes?
  13. Bad head gasket without any symptoms???
  14. Crank Pulley removal/install
  15. how to check if the headgasket is in good shape before buying?
  16. newb question about tune-ups
  17. 1999 DeVille Coolant leak
  18. Coolant C/O Question
  19. HP rating from a sticker
  20. shelby northstar
  21. Wierd shaped bolt holding in IAC
  22. Check out my Headgasket Job in the car!!!!
  23. Crossover Manifold, Pipe Gasket Part Number
  24. Intake Manifold Cracked at Bolt Heads
  25. For all of us with the fluxuating speedometer / intermittent cruise control
  26. Transmission Strengths/Weaknesses
  27. looking for head gasket repair in tx
  28. Different Headgasket Question
  29. What is the difference between VIN 9 and VIN Y 4.6L Northstars ?
  30. I need to find someone closer than Canada to do my headgaskets !!
  31. Sold one of my '97 to my best friend, now it won't start
  32. 2001 STS vac leak at intake
  33. Overheats less in 3
  34. TERRIBLE Gas mileage "help"
  35. damm am i hard headed...over heating still
  36. still overheating need help...
  37. Found Coolant in the Valley. What could it be???
  38. Difficulty level on swapping a N* 4.6?
  39. Help with engine removal for STS
  40. Can 97 N* lifters be disassembled?
  41. front motor mount
  42. A/C delete pulley
  43. coolant leak
  44. Overpressurize relief valve boot
  45. 97 deville blown head gasket question
  46. The best preventative maintenance for my 97 N*?
  47. Service Stability System
  48. duramax1980
  49. 98 NS Brackets
  50. Intake Manifold Removal, '97 SLS
  51. Northstar Bracket
  52. my 1st post transmission problems i think
  53. Priming the oil pump on a northstar engine
  54. 2000 STS, N*interchangibility?
  55. Trying to find Intake Manifold Spacer
  56. PCM wiring without a complete car harness
  57. 99 ETC Weak hot restart?
  58. deville 2000 HG ???
  59. DHS would stall upon starting... would not idle
  60. Why Check the Oil When Hot?
  61. very little coolant circulation...i hope its not a head gasket
  62. '99 STS Oil Smell?
  63. why didnt gm recall northstar engines for head gasket?
  64. Any good Northstar Mechanics in SoCal
  65. radiator drain valve
  66. New Studs to incorporate alignment pins
  67. 1997 Power Steering Pump Questions
  68. 2000 N* Head Gasket probability
  69. 00' STS N* Conversion ???
  70. 99 Deville/Headgasket Issue
  71. Misfire PC0300 Code
  72. Code P0741...Really confused.....Need help!!!
  73. Finally tore the motor apart
  74. 1997 sts stalled, Won't start
  75. HARD loud knock @ acceleration. help
  76. 93 Northstar Dies randomly. HELP!
  77. 95 SLS throttle body vacuum plug
  78. 2006 DTS engine issue
  79. 97 northstar balancer removal
  80. Advice on Northstar Transmission???
  81. oil in the antifreeze & overheating
  82. HG blown 375 days after a $3500 repair
  83. Northstar Coil Bank
  84. Engine wiring harness removal
  85. 97 seville sls coolant loss
  86. 98 deville engine question
  87. STS Blowing Out Oil But From WHERE?????
  88. '93 STS Oil cooler
  89. What kind of seal installer to use?
  90. Northstar head gasket replacement with warranty, Louisville KY - 1500 + parts
  91. how easy is changing the thermostat yourself
  92. Low speed stall
  93. Coolant Issue "00 STS"
  94. failed state inspection because of p0507
  95. Alternator questions....
  96. Bars Leaks Liquid Copper?
  97. which of these codes will cause my service engine light to be on?
  98. 97 Deville oil pan leak
  99. Please Help with long cranking time
  100. high idle
  101. Aftermarket Intake for '99 DeVille base model
  102. 02 Deville rough idle & codes
  103. 1998 Eldorado Head Gasket - 2nd time in 375-days
  104. Started to hear an intermittent grinding noise
  105. $788 To fix P0410 Code
  106. Car Stalled, won't restart
  107. Smell Coolant after Driving??
  108. 1994 STS quit in driveway, seems battery went dead.
  109. 2000 seville sts misfire
  110. Idle Air Control Valve (IAC)
  111. 94 sts intake cover gasket
  112. HG Budget for 97 STS
  113. Help.. 2000 dts tranny blown
  114. 1999 Seville SLS hard start P1350/P1375
  115. Crap!!! Coolant leak! what do I do!?!?!?
  116. 97 Northstar Oil leak
  117. 94 Eldorado Idle problem
  118. Best service manual (rebuilding)
  119. low oil pressure indictator
  120. Any idea what I should pay to get the evap solenoid replaced ?
  121. Thinking of rebuilding motor... questions..
  122. 2001 Deville getting hot
  123. Oil pressure
  124. Cooling system tablets after HG job
  125. HG Jobs for all, anywhere in Canada or USA in my new shop
  126. where to get headgasket job done?
  127. Northstar Engine Gets Gummy?
  128. STS low power
  129. Northstar engine miss
  130. 2002 Deville P3008 code
  131. Real Performance Parts for the L37
  132. HELP outta town with tranny issues
  133. Cooling fans and hard driving- temp spikes
  134. Convert 98 SLS motor into STS motor?
  135. NO Codes but stalls...
  136. Stand-alone Northstar engine/trans for swap
  137. 4T80E solenoid shift replacement
  138. N* Swap with Factory ECM and avoiding DTC's
  139. Vin lookup for engine history
  140. 1999 STS Traction Control off......Unable to turn it on.
  141. 98 deville no fan / tech 2 commanded fan on
  142. 1999 Cadillac Seville OVERHEATING :(
  143. Any differences in an Export N* Engine and a Domestic One?
  144. To much Antifreez
  145. Synthetic or Regular Oil in 08 Escalade ESV?
  146. Stalling when wet
  147. 1998 STS : Code v
  148. 02 Deville plenum question
  149. MSD Timing Controller - Question for AJ
  150. Cranshaft Main Bolts
  151. Rear Main Seal Install
  152. Where to find coolant test?
  153. Can I put a 2001 Northstar in a 1997 Eldorado?
  154. Major coolant leak
  155. I think i'm ready
  156. what to look for buying a used northstar powered car
  157. Happy ending to overheating problem
  158. 2000 sts
  159. Fully Polished Aluminum Strut Tower Brace for 98+Seville and 00+ Deville
  160. o2 sensor thread repair
  161. Bypass AC pump 94 Eldorado
  162. Northstar oil leak, main bolts
  163. 1993 Eldorado Northstar running rough
  164. Limp Mode?
  165. STS N* Rough Idle/Miss at Startup
  166. northstar aurora alternator
  167. Swap 4.9l v8 and 4.6l v8 northstar
  168. '99 STS stuck water water pump
  169. Water pump drive pulley
  170. heater on bench 1?
  171. Hello all
  172. wide engine temp swing
  173. Oil pan gasket
  174. I allmost died in my sts !!!!!, P065 drives itself
  175. 1993 seville STS
  176. cooling fan electrical diagram
  177. Fuel Injectors Revisited
  178. head gasket replacement in louisville kentucky area
  179. Cam Replacement in Car
  180. Northstar block #'s info needed on a used engine.
  181. oil filter for northstar
  182. 2000 sls overheating
  183. SLS overheating help? please?
  184. testing for bad HG
  185. 94 STS Coolant leak between block and flywheel
  186. Valve cover gaskets
  187. Hitting rev limiter in idle after startup
  188. Bad news Very Bad news
  189. EGR symptoms
  190. fuel pumps
  191. manifold pressure sensor or mat sensor
  192. Transaxle interchange
  193. TSB for Oil Consumption
  194. N*** PCM hacking Help
  195. Increasing fuel efficiency
  196. 94 Eldorado 4.6 High Idle
  197. photo shop help
  198. high engine rpm at start up
  199. Is it possible to have digital temperature display on 2002 deville ?
  200. 99 STS metallic ticking noise from valve area
  201. Bonneville GXP 1/4 mile times
  202. Time Serts, Norm's, SureGrip Stud Kit??????
  203. p080
  204. 2004 Deville 275hp... a good buy?
  205. I would like to 'update' the Performance Parts Mega-Post
  206. Questions for Ranger and Submariner409
  207. Cleaning Engine what do i cover?
  208. Any Ideas? No codes, backfire, sputter & parking brake get stuck
  209. dropping cradle: what would you replace preemptively
  210. HG and Timesert in car
  211. 1993 Cadillac Seville STS 4.6l engine bog
  212. Shoud i replace input speed sensor on 2002 deville 140k
  213. Go with studs and get warranty on a DIY HG job
  214. 2002 deville HEAD JOB and MORE --PLEASE HELP
  215. Help. 99 sts dash clicking?
  216. The ever present "miss"
  217. new engine ...?
  218. Code P0603
  219. Fire!!! Eh, not so bad..
  220. Fuel pump removal pictures
  221. No more HG jobs. I'm finished.
  222. More problems after a HG job- or are they?
  223. 02 dts high idle prob
  224. What 2 Do About GM's OHC V8 Engine.... How about the Mainstreaming of the 4.4L SC NS?
  225. 94-99 vs. 2000+ N* Oil issues
  226. RWD Northstar
  227. Running a 2005 N* on a 2006 N* PCM
  228. intake blow off flap
  229. PO155 (HO2S) Code
  230. 95 devile no heat on driver side help
  231. Clever stuff...I think?
  232. trading up
  233. Has anyone tried to put sc 3800 v6?
  234. What gives ?
  235. What is the probability of head gasket failure?
  236. Fuel Pump removal
  237. Like my N* but
  238. Motor will be coming back out after HG job!
  239. Check engine light ?
  240. 1997 deville hard start warm engine
  241. Low mileage Northstar
  242. 00 DTS Falls Flat on Face
  243. Fuel Pump repair kit
  244. Compression test for a head gasket failure
  245. Built Buick Lucerne (400HP Northstar Engine)
  246. Head Gasket Repair in Alaska
  247. Headgasket test kit ?
  248. 97 & 99 deville engine swap??????
  249. Problems After HG job!
  250. Cooling Fans