: Northstar Engines and System Technical Discussion



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  1. what to do with a code
  2. Need headgaskets replaced...Twin Cities, MN area...
  3. Help finding exterior ground location IC Module
  4. Ran out of gas - Now will not start
  5. Hard Starting N* And Unknown Code
  6. Just wanted to check on some codes P0171 and P0134
  7. Ignition Miss - '98 DeVille
  8. Oil Testing, laboratories, and Additives
  9. What timesert kit is this referencing?
  10. Block Test Confirms!...or ?
  11. 2000 Deville with Denso plugs
  12. VIN or other link to body stamped on block?
  13. Prevent head gasket failure
  14. 2000 DeVille Northstar Problem
  15. Previously Timeserted block?
  16. turbo charging a Northstar
  17. p1350 & p1375 codes?
  18. bad fuel economy, rough(er) idle, need help!
  19. What gets relearned after battery disconnect?
  20. idle speed control
  21. 99 Deville Hesitation during Acceleration
  22. strange noise please help
  23. What happen to my overdrive???????
  24. Northstar Overheating!!! HELP
  25. After Timesert HG Repair Service Schedule?
  26. Top engine compartment struts
  27. '01 Deville with Half case leak, any temp fixes/band-aides?
  28. crankshaft sensor location ?
  29. Anyone heard of this?
  30. Are All Xlr's The New Style Closed Deck?
  31. MAF Translator
  32. Are A & B Crankshaft Position Sensors the same sensor??
  33. How much bubbling in surge tank indicates bad head gasket?
  34. Sick Baby
  35. Jet Power Flow Mass Air Sensor
  36. Everything You ever Wanted To Know About Cooling System Sealant Tabs
  37. O2, IAT, MAF sensor reliability on 2000 N*?
  38. Another Successful Mod (albeit potentially destructive)
  39. Questions On Rebuilding a Northstar Engine
  40. eldorado1 (and others)...my brain is failing me...help!
  41. Kent-moore Inserts, Anyone Every Use Them?
  42. 1996 Eldorado Won't Start
  43. 93 STS Northstar wont start
  44. radiator hose sucking itself in after car cools off
  45. upper trans oil cooler hose leaking
  46. What to do with these? (headgasket help)
  47. Not Again
  48. How Much Coolant?!?!
  49. 99 STS Northstar and Trans axle Problem
  50. No access to PCM info via dashboard OBD?
  51. smoking engine after install
  52. Frenchy ask help for his cadillac sts
  53. Headgaskets And "time-serts"!?
  54. Rough runner when it rains. 93 n'star
  55. ~Cadillac Deville Concours 59,000 A DISASTER??~
  56. 93 Allante w/Northstar Tranny Issues
  57. What other engines fit a 1999 Cadillac sts?
  58. Best years for N* between 93 and 99
  59. Any possible options to fix this engine noise?
  60. P0171 to lean code?
  61. 98 Deville theft sytem problem??
  62. Leave no bolt behind - Transmission Case
  63. 2002 Deville HG Replacement
  64. 00 N* still rough idle after changing plenum, cleaning TB
  65. I broke a water pump pulley
  66. Catalytic Convertor Clogged
  67. OH no...another one!
  68. getting ready to start this hd job
  69. Looking for a 2000-2005 Deville/DHS
  70. Anyone Swapped a 4.4 SC Engine?
  71. power steering pressure hose
  72. Thinking of coming over to the N* camp....
  73. Main Bearing Cap Torque
  74. remote start diy <help please>
  75. Symptoms of broken motor mount (2000 STS) ??
  76. N* cams
  77. Check Gas Cap Code
  78. N* dress ups
  79. Fuel Cutoff For Z-rated Sts
  80. Possible Fuel issue?
  81. 2001 Deville thermostat
  82. Help!!!what Parts Do I Need For N*headgasket Replacements?
  83. Another overheater...
  84. Is it ok..........
  85. Engine oil level sensor leaking
  86. How to install Nitrous the correct way! I need input
  87. Are There any Hot Rodder's here?
  88. Lifter, Cam, Valve Issue? (Sounds like Chubby Ranger)
  89. going to attempt head gaskets
  90. 1993 Northstar Rough Idle
  91. check this out if you have had cooling system trouble ie headgaskets
  92. PCM 0101 code set on WOT
  93. 96 Cad DeVille Questions
  94. Need help on 98 cad seville sls
  95. cometic, felpro or gm oem! Head gasket survey.
  96. Thank You so much
  97. Help
  98. Look at these plugs
  99. Fi A/f Ratio
  100. N* Headgasket Replacement
  101. northstar eldorado swap
  102. new HG, coolant issues
  103. replaced hg, low oil pressure
  104. What else should I clean when replacing intake plenum?
  105. 94 STS N* Top End Oil leak
  106. 94 STS High HC at Idle
  107. Is this a cracked intake plenum? (see attached pics)
  108. spare parts after rebuild **HELP**
  109. New Bar's Leaks Product
  110. Newest Intake work...
  111. Headgaskets!
  112. Fuel pressure or pump problem? Need Help!
  113. northstar engine
  114. 2001 Seville dies out????
  115. My Head gasket job
  116. 2000 SLS uses 1qt oil every 500mi - Should I be worried???
  117. air filter
  118. Please help 1995 STS "Service Engine Soon" jumping out of gear?
  119. Northstar Rant
  120. A/C blowing warm air
  121. Sorry for the rant but early NS owners need to know
  122. sealant- case 1/2's
  123. 2000 N* Rough Idle in Seville STS
  124. 01 STS running rich
  125. Is car driveable with Blown HG?
  126. heating and a/c system please help
  127. clogged radiator?????
  128. Headgasket, or what?
  129. no spark
  130. how to replace motor mount on 97 deville northstar
  131. Which Northstar do I have?
  132. 94jN* What do I use for a sealant when I put the intake manifold back on?
  133. no spark
  134. Professionally Painted Northstar Engine Covers
  135. Reuse main bearings?
  136. Noise coming from LH head - valve?
  137. 94 N* Help white smoke out of exhaust
  138. Overheating mystery
  139. New Coolant
  140. PLEASE HELP!!! Stalling when warm and smoking alternator
  141. Car lunges forward when tapping gas
  142. 93, 94 or 95 Eldo worth buying?
  143. Does 2006 Dts Engines Have Headgasket Problems Also?
  144. misc questions
  145. northstar gone bad....AHHHHH
  146. camshaft sensor
  147. Replacing Cylinder Heads Project
  148. newest member of the headgasket club
  149. 1999 northstar warped heads
  150. Northstar engine swap
  151. p0340 camshaft position sensor
  152. northstar in a monte carlo
  153. could this be anything else?
  154. for under 8k would anybody buy a NS Caddy?
  155. No spark,Please help !!
  156. N* Water Pump...I think
  157. 4.6L Northstar CMP tests and replacement ?
  158. 4t80-e
  159. Random Misfire P0300 code
  160. Head Gasket Failure Signs
  161. Which Head Gasket to use?
  162. Swap LD8 in for a L37
  163. Demise of the Northstar
  164. head gasket
  165. GM service manual dvd
  166. The Ultimate FWD Cadillac Northstar Build
  167. No pulses on the injector wires?
  168. Need a connecting rod nut
  169. are coils interchangible from front to rear?
  170. 99" Sts, Rough Idle When Cold. Help!!!
  171. Overheating after new headgasket
  172. Engine running at higher then normal RPM`s
  173. Replacing starter-port intake?
  174. is this normal?
  175. How soon do you replace oil pan gasket?
  176. Torque Multiplier Upgrade ??????? hmmm
  177. mpg and oil consumption 00 dts
  178. 2000 N* Cracked Block & Questions
  179. Tranny Bolts
  180. ICM location anyone- need help!
  181. P0107 then P0201 thru P0208 runs fine
  182. 586Hp Northstar, in a grand prix
  183. Looking for head gasket repair in Northwest, Indiana
  184. Brands Of Oil ?
  185. is it the head or intake manifold gasket?
  186. drive by wire nitrous kit ???
  187. 98 STS Engine Removal
  188. About Gas
  189. Shocks
  190. do you need premium gas in a 4.6 nothstar
  191. New Mods on Customers cars
  192. The smell of coolant~
  193. Setting Camshaft timing HELP!!!
  194. Northstar Over Heating After Waterpump Replacement
  195. how to clean out intake??
  196. emissions light comes on
  197. random miss at idle
  198. spark plugs and wires
  199. Idle
  200. Looking for some more power!
  201. What coolant do i use
  202. 97 Seville Overheat Try This One
  203. northstar smoking engine
  204. Performance Programing 01 DTS
  205. misfire
  206. 2006 Dts Rough Idle On Morning Start Up?
  207. What Causes Heagaskets To Blow?
  208. Blown Engine
  209. Air ram cones
  210. northstar engine knock help!
  211. Help identify foreign object jamming intake valve open
  212. 01 Dts Rough Idle
  213. dangrieco
  214. Spark plugs ?
  215. changing the governor
  216. Delaney Power Extractor Engine
  217. 94 cadillac sts ECM install
  218. Anyone here in Michigan
  219. Where to find new camshafts?
  220. Please don't flame the noob...codes and problem
  221. Real octane booster?
  222. Motor for 96 STS????
  223. What do you think of this? ECU Modifier
  224. Root Cause of Head gasket Failure and a Fix?
  225. Wont start when its cold
  226. Cadillac sts '94 problem
  227. 1995 STS sudden problem
  228. Oil burning TSB.. I know this has been talked about before
  229. Oil Under The Beauty Cover
  230. 97 STS Starting after dead battery
  231. Can you run your car with water?
  232. New to the site, wondering about repairs
  233. Recommndations for N* Tech in Boston/RI Area?
  234. Oil pressure light
  235. Plz Listen 2 My story Need Help ASAP
  236. Timing and Octane....I searched.
  237. Head Gasket replacement 97STS
  238. is it worth it?.
  239. Head Gaskets Failure 97 STS
  240. White smoke in the exhaust which clears after idling 5 minutes
  241. 2002 DTS trouble
  242. Heater Fan
  243. northstar poor mileage
  244. 2001 STS engine knock
  245. N* Camshaft Removal: Special Tools Required?
  246. Block Sealer??
  247. After Market Code Scanner
  248. 2005 STS 3.6L Engine Oil Sensors
  249. Ok Someone Please Help My 97 Deville Not Running.............
  250. best Seville STS to buy ???