: Northstar Engines and System Technical Discussion



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  1. How Do I Change the ignition switch
  2. Cadillac De Ville 1999 OverHeat
  3. NO START, but the battery is good
  4. STS "Limited to 90 Miles an Hour" Message
  5. 1997 STS Ghostly Noise from Vacuum Leak?
  6. 4T80E bellhousing: starter?
  7. Blown Head Gasket On A 97 Deville
  8. North Star & Transmission Issues
  9. Head Gaskets
  10. Oil Housing
  11. North Star & Transmission Issues
  12. 4t80e problems
  13. Reverse problem someone please help me please
  14. AC & Intake
  15. '99 El Dorado Trans Question 2
  16. '99 El Dorado Tranaxle Modulator Location and Replacement
  17. Compression and oil consumption
  18. Anyone sells lower temperature thermostats?
  19. 1996 Deville Trouble Codes--Help Me!
  20. Aftermarket coils
  21. 05 STS V8 pcm reprogramming?
  22. '99 El Dorado White Smoke 70 mph and up
  23. Decel Stall
  24. no crank
  25. Who wants headers?!?!
  26. replacing oil pressure sending unit
  27. Northstar intermittent heating problem
  28. Compressed Natural Gas
  29. Proper A/C Recharge Pressure Spec?
  30. Head Bolt Torque
  31. what to do with a code
  32. Need headgaskets replaced...Twin Cities, MN area...
  33. Help finding exterior ground location IC Module
  34. Ran out of gas - Now will not start
  35. Hard Starting N* And Unknown Code
  36. Just wanted to check on some codes P0171 and P0134
  37. Ignition Miss - '98 DeVille
  38. Oil Testing, laboratories, and Additives
  39. What timesert kit is this referencing?
  40. Block Test Confirms!...or ?
  41. 2000 Deville with Denso plugs
  42. VIN or other link to body stamped on block?
  43. Prevent head gasket failure
  44. 2000 DeVille Northstar Problem
  45. Previously Timeserted block?
  46. turbo charging a Northstar
  47. p1350 & p1375 codes?
  48. bad fuel economy, rough(er) idle, need help!
  49. What gets relearned after battery disconnect?
  50. idle speed control
  51. 99 Deville Hesitation during Acceleration
  52. strange noise please help
  53. What happen to my overdrive???????
  54. Northstar Overheating!!! HELP
  55. After Timesert HG Repair Service Schedule?
  56. Top engine compartment struts
  57. '01 Deville with Half case leak, any temp fixes/band-aides?
  58. crankshaft sensor location ?
  59. Anyone heard of this?
  60. Are All Xlr's The New Style Closed Deck?
  61. MAF Translator
  62. Are A & B Crankshaft Position Sensors the same sensor??
  63. How much bubbling in surge tank indicates bad head gasket?
  64. Sick Baby
  65. Jet Power Flow Mass Air Sensor
  66. Everything You ever Wanted To Know About Cooling System Sealant Tabs
  67. O2, IAT, MAF sensor reliability on 2000 N*?
  68. Another Successful Mod (albeit potentially destructive)
  69. Questions On Rebuilding a Northstar Engine
  70. eldorado1 (and others)...my brain is failing me...help!
  71. Kent-moore Inserts, Anyone Every Use Them?
  72. 1996 Eldorado Won't Start
  73. 93 STS Northstar wont start
  74. radiator hose sucking itself in after car cools off
  75. upper trans oil cooler hose leaking
  76. What to do with these? (headgasket help)
  77. Not Again
  78. How Much Coolant?!?!
  79. 99 STS Northstar and Trans axle Problem
  80. No access to PCM info via dashboard OBD?
  81. smoking engine after install
  82. Frenchy ask help for his cadillac sts
  83. Headgaskets And "time-serts"!?
  84. Rough runner when it rains. 93 n'star
  85. ~Cadillac Deville Concours 59,000 A DISASTER??~
  86. 93 Allante w/Northstar Tranny Issues
  87. What other engines fit a 1999 Cadillac sts?
  88. Best years for N* between 93 and 99
  89. Any possible options to fix this engine noise?
  90. P0171 to lean code?
  91. 98 Deville theft sytem problem??
  92. Leave no bolt behind - Transmission Case
  93. 2002 Deville HG Replacement
  94. 00 N* still rough idle after changing plenum, cleaning TB
  95. I broke a water pump pulley
  96. Catalytic Convertor Clogged
  97. OH no...another one!
  98. getting ready to start this hd job
  99. Looking for a 2000-2005 Deville/DHS
  100. Anyone Swapped a 4.4 SC Engine?
  101. power steering pressure hose
  102. Thinking of coming over to the N* camp....
  103. Main Bearing Cap Torque
  104. remote start diy <help please>
  105. Symptoms of broken motor mount (2000 STS) ??
  106. N* cams
  107. Check Gas Cap Code
  108. N* dress ups
  109. Fuel Cutoff For Z-rated Sts
  110. Possible Fuel issue?
  111. 2001 Deville thermostat
  112. Help!!!what Parts Do I Need For N*headgasket Replacements?
  113. Another overheater...
  114. Is it ok..........
  115. Engine oil level sensor leaking
  116. How to install Nitrous the correct way! I need input
  117. Are There any Hot Rodder's here?
  118. Lifter, Cam, Valve Issue? (Sounds like Chubby Ranger)
  119. going to attempt head gaskets
  120. 1993 Northstar Rough Idle
  121. check this out if you have had cooling system trouble ie headgaskets
  122. PCM 0101 code set on WOT
  123. 96 Cad DeVille Questions
  124. Need help on 98 cad seville sls
  125. cometic, felpro or gm oem! Head gasket survey.
  126. Thank You so much
  127. Help
  128. Look at these plugs
  129. Fi A/f Ratio
  130. N* Headgasket Replacement
  131. northstar eldorado swap
  132. new HG, coolant issues
  133. replaced hg, low oil pressure
  134. What else should I clean when replacing intake plenum?
  135. 94 STS N* Top End Oil leak
  136. 94 STS High HC at Idle
  137. Is this a cracked intake plenum? (see attached pics)
  138. spare parts after rebuild **HELP**
  139. New Bar's Leaks Product
  140. Newest Intake work...
  141. Headgaskets!
  142. Fuel pressure or pump problem? Need Help!
  143. northstar engine
  144. 2001 Seville dies out????
  145. My Head gasket job
  146. 2000 SLS uses 1qt oil every 500mi - Should I be worried???
  147. air filter
  148. Please help 1995 STS "Service Engine Soon" jumping out of gear?
  149. Northstar Rant
  150. A/C blowing warm air
  151. Sorry for the rant but early NS owners need to know
  152. sealant- case 1/2's
  153. 2000 N* Rough Idle in Seville STS
  154. 01 STS running rich
  155. Is car driveable with Blown HG?
  156. heating and a/c system please help
  157. clogged radiator?????
  158. Headgasket, or what?
  159. no spark
  160. how to replace motor mount on 97 deville northstar
  161. Which Northstar do I have?
  162. 94jN* What do I use for a sealant when I put the intake manifold back on?
  163. no spark
  164. Professionally Painted Northstar Engine Covers
  165. Reuse main bearings?
  166. Noise coming from LH head - valve?
  167. 94 N* Help white smoke out of exhaust
  168. Overheating mystery
  169. New Coolant
  170. PLEASE HELP!!! Stalling when warm and smoking alternator
  171. Car lunges forward when tapping gas
  172. 93, 94 or 95 Eldo worth buying?
  173. Does 2006 Dts Engines Have Headgasket Problems Also?
  174. misc questions
  175. northstar gone bad....AHHHHH
  176. camshaft sensor
  177. Replacing Cylinder Heads Project
  178. newest member of the headgasket club
  179. 1999 northstar warped heads
  180. Northstar engine swap
  181. p0340 camshaft position sensor
  182. northstar in a monte carlo
  183. could this be anything else?
  184. for under 8k would anybody buy a NS Caddy?
  185. No spark,Please help !!
  186. N* Water Pump...I think
  187. 4.6L Northstar CMP tests and replacement ?
  188. 4t80-e
  189. Random Misfire P0300 code
  190. Head Gasket Failure Signs
  191. Which Head Gasket to use?
  192. Swap LD8 in for a L37
  193. Demise of the Northstar
  194. head gasket
  195. GM service manual dvd
  196. The Ultimate FWD Cadillac Northstar Build
  197. No pulses on the injector wires?
  198. Need a connecting rod nut
  199. are coils interchangible from front to rear?
  200. 99" Sts, Rough Idle When Cold. Help!!!
  201. Overheating after new headgasket
  202. Engine running at higher then normal RPM`s
  203. Replacing starter-port intake?
  204. is this normal?
  205. How soon do you replace oil pan gasket?
  206. Torque Multiplier Upgrade ??????? hmmm
  207. mpg and oil consumption 00 dts
  208. 2000 N* Cracked Block & Questions
  209. Tranny Bolts
  210. ICM location anyone- need help!
  211. P0107 then P0201 thru P0208 runs fine
  212. 586Hp Northstar, in a grand prix
  213. Looking for head gasket repair in Northwest, Indiana
  214. Brands Of Oil ?
  215. is it the head or intake manifold gasket?
  216. drive by wire nitrous kit ???
  217. 98 STS Engine Removal
  218. About Gas
  219. Shocks
  220. do you need premium gas in a 4.6 nothstar
  221. New Mods on Customers cars
  222. The smell of coolant~
  223. Setting Camshaft timing HELP!!!
  224. Northstar Over Heating After Waterpump Replacement
  225. how to clean out intake??
  226. emissions light comes on
  227. random miss at idle
  228. spark plugs and wires
  229. Idle
  230. Looking for some more power!
  231. What coolant do i use
  232. 97 Seville Overheat Try This One
  233. northstar smoking engine
  234. Performance Programing 01 DTS
  235. misfire
  236. 2006 Dts Rough Idle On Morning Start Up?
  237. What Causes Heagaskets To Blow?
  238. Blown Engine
  239. Air ram cones
  240. northstar engine knock help!
  241. Help identify foreign object jamming intake valve open
  242. 01 Dts Rough Idle
  243. dangrieco
  244. Spark plugs ?
  245. changing the governor
  246. Delaney Power Extractor Engine
  247. 94 cadillac sts ECM install
  248. Anyone here in Michigan
  249. Where to find new camshafts?
  250. Please don't flame the noob...codes and problem