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View Full Version : Northstar Engines and System Technical Discussion



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  1. New to the site, wondering about repairs
  2. Can you run your car with water?
  3. 97 STS Starting after dead battery
  4. Oil Under The Beauty Cover
  5. Oil burning TSB.. I know this has been talked about before
  6. 1995 STS sudden problem
  7. Cadillac sts '94 problem
  8. Wont start when its cold
  9. Root Cause of Head gasket Failure and a Fix?
  10. What do you think of this? ECU Modifier
  11. Motor for 96 STS????
  12. Real octane booster?
  13. Please don't flame the noob...codes and problem
  14. Where to find new camshafts?
  15. Anyone here in Michigan
  16. 94 cadillac sts ECM install
  17. Delaney Power Extractor Engine
  18. changing the governor
  19. Spark plugs ?
  20. dangrieco
  21. 01 Dts Rough Idle
  22. Help identify foreign object jamming intake valve open
  23. northstar engine knock help!
  24. Air ram cones
  25. Blown Engine
  26. What Causes Heagaskets To Blow?
  27. 2006 Dts Rough Idle On Morning Start Up?
  28. misfire
  29. Performance Programing 01 DTS
  30. northstar smoking engine
  31. 97 Seville Overheat Try This One
  32. What coolant do i use
  33. Looking for some more power!
  34. Idle
  35. spark plugs and wires
  36. random miss at idle
  37. emissions light comes on
  38. how to clean out intake??
  39. Northstar Over Heating After Waterpump Replacement
  40. Setting Camshaft timing HELP!!!
  41. The smell of coolant~
  42. New Mods on Customers cars
  43. do you need premium gas in a 4.6 nothstar
  44. Shocks
  45. About Gas
  46. 98 STS Engine Removal
  47. drive by wire nitrous kit ???
  48. is it the head or intake manifold gasket?
  49. Brands Of Oil ?
  50. Looking for head gasket repair in Northwest, Indiana
  51. 586Hp Northstar, in a grand prix
  52. P0107 then P0201 thru P0208 runs fine
  53. ICM location anyone- need help!
  54. Tranny Bolts
  55. 2000 N* Cracked Block & Questions
  56. mpg and oil consumption 00 dts
  57. Torque Multiplier Upgrade ??????? hmmm
  58. How soon do you replace oil pan gasket?
  59. is this normal?
  60. Replacing starter-port intake?
  61. Engine running at higher then normal RPM`s
  62. Overheating after new headgasket
  63. 99" Sts, Rough Idle When Cold. Help!!!
  64. are coils interchangible from front to rear?
  65. 150 shot on stock 2008 DTS??
  66. Need a connecting rod nut
  67. No pulses on the injector wires?
  68. The Ultimate FWD Cadillac Northstar Build
  69. GM service manual dvd
  70. head gasket
  71. Demise of the Northstar
  72. Swap LD8 in for a L37
  73. Which Head Gasket to use?
  74. Head Gasket Failure Signs
  75. Random Misfire P0300 code
  76. 4t80-e
  77. 4.6L Northstar CMP tests and replacement ?
  78. N* Water Pump...I think
  79. No spark,Please help !!
  80. for under 8k would anybody buy a NS Caddy?
  81. could this be anything else?
  82. northstar in a monte carlo
  83. p0340 camshaft position sensor
  84. Northstar engine swap
  85. 1999 northstar warped heads
  86. newest member of the headgasket club
  87. Replacing Cylinder Heads Project
  88. camshaft sensor
  89. northstar gone bad....AHHHHH
  90. misc questions
  91. Does 2006 Dts Engines Have Headgasket Problems Also?
  92. 93, 94 or 95 Eldo worth buying?
  93. Car lunges forward when tapping gas
  94. PLEASE HELP!!! Stalling when warm and smoking alternator
  95. New Coolant
  96. Overheating mystery
  97. 94 N* Help white smoke out of exhaust
  98. Noise coming from LH head - valve?
  99. Reuse main bearings?
  100. Professionally Painted Northstar Engine Covers
  101. no spark
  102. 94jN* What do I use for a sealant when I put the intake manifold back on?
  103. Which Northstar do I have?
  104. how to replace motor mount on 97 deville northstar
  105. no spark
  106. Headgasket, or what?
  107. clogged radiator?????
  108. heating and a/c system please help
  109. Is car driveable with Blown HG?
  110. 01 STS running rich
  111. 2000 N* Rough Idle in Seville STS
  112. sealant- case 1/2's
  113. Sorry for the rant but early NS owners need to know
  114. A/C blowing warm air
  115. Northstar Rant
  116. Please help 1995 STS "Service Engine Soon" jumping out of gear?
  117. air filter
  118. 2000 SLS uses 1qt oil every 500mi - Should I be worried???
  119. My Head gasket job
  120. 2001 Seville dies out????
  121. northstar engine
  122. Fuel pressure or pump problem? Need Help!
  123. Headgaskets!
  124. Newest Intake work...
  125. New Bar's Leaks Product
  126. spare parts after rebuild **HELP**
  127. Is this a cracked intake plenum? (see attached pics)
  128. 94 STS High HC at Idle
  129. 94 STS N* Top End Oil leak
  130. What else should I clean when replacing intake plenum?
  131. replaced hg, low oil pressure
  132. new HG, coolant issues
  133. northstar eldorado swap
  134. N* Headgasket Replacement
  135. Fi A/f Ratio
  136. Look at these plugs
  137. Help
  138. Thank You so much
  139. cometic, felpro or gm oem! Head gasket survey.
  140. Need help on 98 cad seville sls
  141. 96 Cad DeVille Questions
  142. PCM 0101 code set on WOT
  143. check this out if you have had cooling system trouble ie headgaskets
  144. 1993 Northstar Rough Idle
  145. going to attempt head gaskets
  146. Lifter, Cam, Valve Issue? (Sounds like Chubby Ranger)
  147. Are There any Hot Rodder's here?
  148. How to install Nitrous the correct way! I need input
  149. Engine oil level sensor leaking
  150. Is it ok..........
  151. Another overheater...
  152. Help!!!what Parts Do I Need For N*headgasket Replacements?
  153. 2001 Deville thermostat
  154. Possible Fuel issue?
  155. Fuel Cutoff For Z-rated Sts
  156. N* dress ups
  157. Check Gas Cap Code
  158. N* cams
  159. Symptoms of broken motor mount (2000 STS) ??
  160. remote start diy <help please>
  161. Main Bearing Cap Torque
  162. Thinking of coming over to the N* camp....
  163. power steering pressure hose
  164. Anyone Swapped a 4.4 SC Engine?
  165. Looking for a 2000-2005 Deville/DHS
  166. getting ready to start this hd job
  167. OH no...another one!
  168. Catalytic Convertor Clogged
  169. I broke a water pump pulley
  170. 00 N* still rough idle after changing plenum, cleaning TB
  171. 2002 Deville HG Replacement
  172. Leave no bolt behind - Transmission Case
  173. 98 Deville theft sytem problem??
  174. P0171 to lean code?
  175. Any possible options to fix this engine noise?
  176. Best years for N* between 93 and 99
  177. What other engines fit a 1999 Cadillac sts?
  178. 93 Allante w/Northstar Tranny Issues
  179. ~Cadillac Deville Concours 59,000 A DISASTER??~
  180. Rough runner when it rains. 93 n'star
  181. Headgaskets And "time-serts"!?
  182. Frenchy ask help for his cadillac sts
  183. smoking engine after install
  184. No access to PCM info via dashboard OBD?
  185. 99 STS Northstar and Trans axle Problem
  186. How Much Coolant?!?!
  187. Not Again
  188. What to do with these? (headgasket help)
  189. upper trans oil cooler hose leaking
  190. radiator hose sucking itself in after car cools off
  191. 93 STS Northstar wont start
  192. 1996 Eldorado Won't Start
  193. Kent-moore Inserts, Anyone Every Use Them?
  194. eldorado1 (and others)...my brain is failing me...help!
  195. Questions On Rebuilding a Northstar Engine
  196. Another Successful Mod (albeit potentially destructive)
  197. O2, IAT, MAF sensor reliability on 2000 N*?
  198. Everything You ever Wanted To Know About Cooling System Sealant Tabs
  199. Jet Power Flow Mass Air Sensor
  200. Sick Baby
  201. How much bubbling in surge tank indicates bad head gasket?
  202. Are A & B Crankshaft Position Sensors the same sensor??
  203. MAF Translator
  204. Are All Xlr's The New Style Closed Deck?
  205. Anyone heard of this?
  206. crankshaft sensor location ?
  207. '01 Deville with Half case leak, any temp fixes/band-aides?
  208. Top engine compartment struts
  209. After Timesert HG Repair Service Schedule?
  210. Northstar Overheating!!! HELP
  211. What happen to my overdrive???????
  212. strange noise please help
  213. 99 Deville Hesitation during Acceleration
  214. idle speed control
  215. What gets relearned after battery disconnect?
  216. bad fuel economy, rough(er) idle, need help!
  217. p1350 & p1375 codes?
  218. turbo charging a Northstar
  219. Previously Timeserted block?
  220. 2000 DeVille Northstar Problem
  221. Prevent head gasket failure
  222. VIN or other link to body stamped on block?
  223. 2000 Deville with Denso plugs
  224. Block Test Confirms!...or ?
  225. What timesert kit is this referencing?
  226. Oil Testing, laboratories, and Additives
  227. Ignition Miss - '98 DeVille
  228. Just wanted to check on some codes P0171 and P0134
  229. Hard Starting N* And Unknown Code
  230. Ran out of gas - Now will not start
  231. Help finding exterior ground location IC Module
  232. Need headgaskets replaced...Twin Cities, MN area...
  233. what to do with a code
  234. Northstar head bolt torque - and later update
  235. Proper A/C Recharge Pressure Spec?
  236. Compressed Natural Gas
  237. Northstar intermittent heating problem
  238. replacing oil pressure sending unit
  239. Who wants headers?!?!
  240. no crank
  241. Decel Stall
  242. '99 El Dorado White Smoke 70 mph and up
  243. 05 STS V8 pcm reprogramming?
  244. Aftermarket coils
  245. 1996 Deville Trouble Codes--Help Me!
  246. Anyone sells lower temperature thermostats?
  247. Compression and oil consumption
  248. '99 El Dorado Tranaxle Modulator Location and Replacement
  249. '99 El Dorado Trans Question 2
  250. AC & Intake