: Northstar Engines and System Technical Discussion



Pages : 1 2 3 4 5 6 7 8 [9] 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33

  1. '99 Seville STS
  2. What are the differences between 99> and 00< motors?
  3. Why do these motors break rods?
  4. pretty betty deville
  5. how reliable is northstars limp mode
  6. 1999 deville almost overheating
  7. 3.71 ever better with smaller wheels?
  8. Refrigerant pressure
  9. Minor Coolant Leak
  10. 93 sts misfires, stalls, very rough idle, looking for cause
  11. Any thoughts? Code P1350 p1375
  12. Injector spec for a Y2000 N*
  13. oil cooler
  14. TPS issue: Codes P0122, P1122. Help!
  15. Need Help Installing Air Filter ?
  16. 2002 Deville coolant leak
  17. Blew the head gaskets replacing the motor
  18. 1997 deville stalling at idle
  19. bad headgasket
  20. N* running Hot, Real Hot
  21. 99 deville oil pump
  22. 2001 Northstar AIR Valve
  23. Hydraulic valve-lash adjustor evaluation?
  24. 99 deville - RFA U1000 Help
  25. 91 GMC Sierra, with a Northstar?
  26. 96 96 Northstar Noise and Oil light issue With Video
  27. Speedomoter Reads wrong
  28. 2001 Deville Falls Dead
  29. 98 sls overheating
  30. EVAP Purge Solenoid
  31. P0171, P0174 After replaced Plenum
  32. 97 deville overheating??
  33. Batteries, voltage, power, and Optima
  34. Intake Manifold Removal Snag
  35. Smoke
  36. Come for a vacation while your HG's are replaced
  37. Exhaust manifold swap?
  38. Temp Indicator Question!
  39. Does Anyone Have Any Ideas???
  40. 2001 deville misfire
  41. '98 heads and cams on a 2000 block
  42. Fuel Rail / Fuel Injector Removal
  43. No Spark
  44. Puffs of smoke while revving in park
  45. Warping the Heads???
  46. A/c Discharge Hose
  47. Northstar Valve seals?
  48. Main studs?
  49. Notice of price increase on HG replacement
  50. Mystery Vacuum Hose
  51. Bad Thermostats or blown Head Gasket??? Help
  52. timeserts
  53. Northstar Engine belt
  54. Question about Time Serts?
  55. Iridium Spar Plugs
  56. Stock crank HP?
  57. How much better are the 00+ headgaskets.
  58. 97 ELDARADO w/ blown H/G
  59. allante 9 engine swap to a y engine
  60. Weird transmission behavior - any ideas?
  61. 3" Exhaust all the way back?
  62. FWD Sump swap for RWD?
  63. Early engine number needed
  64. Low oil pressure enigine stop no start
  65. Need Motor Mount R&R procedure in Tech Tips
  66. Crankshaft Position Sensor
  67. 2002 Eldog
  68. changing starter on 1998 deville--have you done it?
  69. 01 STS - Engine cutting out on accel
  70. Ram Air set-up on a 95 STS
  71. NorthStar painting touch up?
  72. Camchain timing
  73. 03 front (left) motor mount help
  74. Oil filter IArea
  75. I may need all forum members help, especially those who have ordered the stud kits.
  76. Do NS engines have an "air regulator"?
  77. Injector Alternatives
  78. Best year for a NorthStar??
  79. How to remove oil filter adapter???
  80. 95 N* intake issue
  81. How to lock flywheel without $150 tool?
  82. 2001 Deville DTS PO300 Random Misfires
  83. Cadillac STS Coolant, service stability system...
  84. anyone ever use Engine Ice Hi-Performance Coolant
  85. 1994 cadillac sts coolant loss
  86. What size of Time-Sert I have to buy ?
  87. 96 Eldo ETC I found the ABS computer cover...how do I get in it?? Do I force it?
  88. 96 Eldo engine sputters and stalls. P0300 and P1380 Engine Misfire.
  89. 01 STS Water pump grumbling noise
  90. Replacement Engine
  91. Coolant loss?
  92. what is the difference between the concourse and regular?
  93. '97 DeVille SES but no current codes?
  94. 95 sts hard shifting/chugging trans?
  95. combustion gas test turned yellow
  96. Northstar Died? no vacuum, no compression on cyl 6.
  97. Myrtle Beach Repair Shop
  98. High oil pressure
  99. Transmission help
  100. P0621
  101. 96 Seville AC system
  102. air box
  103. Engine almost stalls
  104. Help needed before I break something...
  105. Lean Cruise Tune
  106. 95 seville died and wont start
  107. would bad hg's cause the lower radiator hose not to get warm??
  108. Help..Which is #2 cylinder and other question
  109. cam sensor trigger
  110. getting p0741 code please help!!
  111. need help
  112. anyone know what this writing can mean?
  113. Primary timing chain sprocket wear?
  114. Still no short run power
  115. 96 concours crank prob
  116. On Vacation, just a bit of fun street racing....
  117. What is Normal Valve Train Noise?
  118. Fpr
  119. Need urgent help with spark plug wires
  120. PCM codes P0138 and P1139
  121. could this be a hg issue?
  122. barely running Northstar
  123. slightly overheating and coolant leak
  124. Help with TCC replacement parts list
  125. radiator fans not cutting on
  126. saying goodbye
  127. Transmission problems after HG fixed!!!
  128. 1996 STS Engine seized again what could be wrong?
  129. is there supposed to be something in the bottom radiator hoes?
  130. Bad head gasket without any symptoms???
  131. Crank Pulley removal/install
  132. how to check if the headgasket is in good shape before buying?
  133. newb question about tune-ups
  134. 1999 DeVille Coolant leak
  135. Coolant C/O Question
  136. HP rating from a sticker
  137. shelby northstar
  138. Wierd shaped bolt holding in IAC
  139. Check out my Headgasket Job in the car!!!!
  140. Crossover Manifold, Pipe Gasket Part Number
  141. Intake Manifold Cracked at Bolt Heads
  142. For all of us with the fluxuating speedometer / intermittent cruise control
  143. Transmission Strengths/Weaknesses
  144. looking for head gasket repair in tx
  145. Different Headgasket Question
  146. What is the difference between VIN 9 and VIN Y 4.6L Northstars ?
  147. I need to find someone closer than Canada to do my headgaskets !!
  148. Sold one of my '97 to my best friend, now it won't start
  149. 2001 STS vac leak at intake
  150. Overheats less in 3
  151. TERRIBLE Gas mileage "help"
  152. damm am i hard headed...over heating still
  153. still overheating need help...
  154. Found Coolant in the Valley. What could it be???
  155. Difficulty level on swapping a N* 4.6?
  156. Help with engine removal for STS
  157. Can 97 N* lifters be disassembled?
  158. front motor mount
  159. A/C delete pulley
  160. coolant leak
  161. Overpressurize relief valve boot
  162. 97 deville blown head gasket question
  163. The best preventative maintenance for my 97 N*?
  164. Service Stability System
  165. duramax1980
  166. 98 NS Brackets
  167. Intake Manifold Removal, '97 SLS
  168. Northstar Bracket
  169. my 1st post transmission problems i think
  170. Priming the oil pump on a northstar engine
  171. 2000 STS, N*interchangibility?
  172. Trying to find Intake Manifold Spacer
  173. PCM wiring without a complete car harness
  174. 99 ETC Weak hot restart?
  175. deville 2000 HG ???
  176. DHS would stall upon starting... would not idle
  177. Why Check the Oil When Hot?
  178. very little coolant circulation...i hope its not a head gasket
  179. '99 STS Oil Smell?
  180. why didnt gm recall northstar engines for head gasket?
  181. Any good Northstar Mechanics in SoCal
  182. radiator drain valve
  183. New Studs to incorporate alignment pins
  184. 1997 Power Steering Pump Questions
  185. 2000 N* Head Gasket probability
  186. 00' STS N* Conversion ???
  187. 99 Deville/Headgasket Issue
  188. Misfire PC0300 Code
  189. Code P0741...Really confused.....Need help!!!
  190. Finally tore the motor apart
  191. 1997 sts stalled, Won't start
  192. HARD loud knock @ acceleration. help
  193. 93 Northstar Dies randomly. HELP!
  194. 95 SLS throttle body vacuum plug
  195. 2006 DTS engine issue
  196. 97 northstar balancer removal
  197. Advice on Northstar Transmission???
  198. oil in the antifreeze & overheating
  199. HG blown 375 days after a $3500 repair
  200. Northstar Coil Bank
  201. Engine wiring harness removal
  202. 97 seville sls coolant loss
  203. 98 deville engine question
  204. STS Blowing Out Oil But From WHERE?????
  205. '93 STS Oil cooler
  206. What kind of seal installer to use?
  207. Northstar head gasket replacement with warranty, Louisville KY - 1500 + parts
  208. how easy is changing the thermostat yourself
  209. Low speed stall
  210. Coolant Issue "00 STS"
  211. failed state inspection because of p0507
  212. Alternator questions....
  213. Bars Leaks Liquid Copper?
  214. which of these codes will cause my service engine light to be on?
  215. 97 Deville oil pan leak
  216. Please Help with long cranking time
  217. high idle
  218. Aftermarket Intake for '99 DeVille base model
  219. 02 Deville rough idle & codes
  220. 1998 Eldorado Head Gasket - 2nd time in 375-days
  221. Started to hear an intermittent grinding noise
  222. $788 To fix P0410 Code
  223. Car Stalled, won't restart
  224. Smell Coolant after Driving??
  225. 1994 STS quit in driveway, seems battery went dead.
  226. 2000 seville sts misfire
  227. Idle Air Control Valve (IAC)
  228. 94 sts intake cover gasket
  229. HG Budget for 97 STS
  230. Help.. 2000 dts tranny blown
  231. 1999 Seville SLS hard start P1350/P1375
  232. Crap!!! Coolant leak! what do I do!?!?!?
  233. 97 Northstar Oil leak
  234. 94 Eldorado Idle problem
  235. Best service manual (rebuilding)
  236. low oil pressure indictator
  237. Any idea what I should pay to get the evap solenoid replaced ?
  238. Thinking of rebuilding motor... questions..
  239. 2001 Deville getting hot
  240. Oil pressure
  241. Cooling system tablets after HG job
  242. HG Jobs for all, anywhere in Canada or USA in my new shop
  243. where to get headgasket job done?
  244. Northstar Engine Gets Gummy?
  245. STS low power
  246. Northstar engine miss
  247. 2002 Deville P3008 code
  248. Real Performance Parts for the L37
  249. HELP outta town with tranny issues
  250. Cooling fans and hard driving- temp spikes