: Northstar Engines and System Technical Discussion



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  1. engine swap
  2. 1993 to 1999 Cam Wear Fix
  3. 94 Eldo ETC
  4. Need diagnosis - 98 STS overheating
  5. Professional Coolant Flush
  6. 4T80-E transaxle
  7. Oil Adapter housing Problems :(
  8. Head gasket, possibly cracked block...
  9. etanol blend, what does it do to the n?
  10. Loaded '03 STS 103k great shape - Dealer says it's the head gaskets.
  11. Problem with my Fast Chip
  12. Is there a Northstar FAQ section?
  13. 97 sts auto radio shut off
  14. Severe engine miss at idle-dirty gas in filter
  15. How Do I Change the ignition switch
  16. Cadillac De Ville 1999 OverHeat
  17. NO START, but the battery is good
  18. STS "Limited to 90 Miles an Hour" Message
  19. 1997 STS Ghostly Noise from Vacuum Leak?
  20. 4T80E bellhousing: starter?
  21. Blown Head Gasket On A 97 Deville
  22. North Star & Transmission Issues
  23. Head Gaskets
  24. Oil Housing
  25. North Star & Transmission Issues
  26. 4t80e problems
  27. Reverse problem someone please help me please
  28. AC & Intake
  29. '99 El Dorado Trans Question 2
  30. '99 El Dorado Tranaxle Modulator Location and Replacement
  31. Compression and oil consumption
  32. Anyone sells lower temperature thermostats?
  33. 1996 Deville Trouble Codes--Help Me!
  34. Aftermarket coils
  35. 05 STS V8 pcm reprogramming?
  36. '99 El Dorado White Smoke 70 mph and up
  37. Decel Stall
  38. no crank
  39. Who wants headers?!?!
  40. replacing oil pressure sending unit
  41. Northstar intermittent heating problem
  42. Compressed Natural Gas
  43. Proper A/C Recharge Pressure Spec?
  44. Head Bolt Torque
  45. what to do with a code
  46. Need headgaskets replaced...Twin Cities, MN area...
  47. Help finding exterior ground location IC Module
  48. Ran out of gas - Now will not start
  49. Hard Starting N* And Unknown Code
  50. Just wanted to check on some codes P0171 and P0134
  51. Ignition Miss - '98 DeVille
  52. Oil Testing, laboratories, and Additives
  53. What timesert kit is this referencing?
  54. Block Test Confirms!...or ?
  55. 2000 Deville with Denso plugs
  56. VIN or other link to body stamped on block?
  57. Prevent head gasket failure
  58. 2000 DeVille Northstar Problem
  59. Previously Timeserted block?
  60. turbo charging a Northstar
  61. p1350 & p1375 codes?
  62. bad fuel economy, rough(er) idle, need help!
  63. What gets relearned after battery disconnect?
  64. idle speed control
  65. 99 Deville Hesitation during Acceleration
  66. strange noise please help
  67. What happen to my overdrive???????
  68. Northstar Overheating!!! HELP
  69. After Timesert HG Repair Service Schedule?
  70. Top engine compartment struts
  71. '01 Deville with Half case leak, any temp fixes/band-aides?
  72. crankshaft sensor location ?
  73. Anyone heard of this?
  74. Are All Xlr's The New Style Closed Deck?
  75. MAF Translator
  76. Are A & B Crankshaft Position Sensors the same sensor??
  77. How much bubbling in surge tank indicates bad head gasket?
  78. Sick Baby
  79. Jet Power Flow Mass Air Sensor
  80. Everything You ever Wanted To Know About Cooling System Sealant Tabs
  81. O2, IAT, MAF sensor reliability on 2000 N*?
  82. Another Successful Mod (albeit potentially destructive)
  83. Questions On Rebuilding a Northstar Engine
  84. eldorado1 (and others)...my brain is failing me...help!
  85. Kent-moore Inserts, Anyone Every Use Them?
  86. 1996 Eldorado Won't Start
  87. 93 STS Northstar wont start
  88. radiator hose sucking itself in after car cools off
  89. upper trans oil cooler hose leaking
  90. What to do with these? (headgasket help)
  91. Not Again
  92. How Much Coolant?!?!
  93. 99 STS Northstar and Trans axle Problem
  94. No access to PCM info via dashboard OBD?
  95. smoking engine after install
  96. Frenchy ask help for his cadillac sts
  97. Headgaskets And "time-serts"!?
  98. Rough runner when it rains. 93 n'star
  99. ~Cadillac Deville Concours 59,000 A DISASTER??~
  100. 93 Allante w/Northstar Tranny Issues
  101. What other engines fit a 1999 Cadillac sts?
  102. Best years for N* between 93 and 99
  103. Any possible options to fix this engine noise?
  104. P0171 to lean code?
  105. 98 Deville theft sytem problem??
  106. Leave no bolt behind - Transmission Case
  107. 2002 Deville HG Replacement
  108. 00 N* still rough idle after changing plenum, cleaning TB
  109. I broke a water pump pulley
  110. Catalytic Convertor Clogged
  111. OH no...another one!
  112. getting ready to start this hd job
  113. Looking for a 2000-2005 Deville/DHS
  114. Anyone Swapped a 4.4 SC Engine?
  115. power steering pressure hose
  116. Thinking of coming over to the N* camp....
  117. Main Bearing Cap Torque
  118. remote start diy <help please>
  119. Symptoms of broken motor mount (2000 STS) ??
  120. N* cams
  121. Check Gas Cap Code
  122. N* dress ups
  123. Fuel Cutoff For Z-rated Sts
  124. Possible Fuel issue?
  125. 2001 Deville thermostat
  126. Help!!!what Parts Do I Need For N*headgasket Replacements?
  127. Another overheater...
  128. Is it ok..........
  129. Engine oil level sensor leaking
  130. How to install Nitrous the correct way! I need input
  131. Are There any Hot Rodder's here?
  132. Lifter, Cam, Valve Issue? (Sounds like Chubby Ranger)
  133. going to attempt head gaskets
  134. 1993 Northstar Rough Idle
  135. check this out if you have had cooling system trouble ie headgaskets
  136. PCM 0101 code set on WOT
  137. 96 Cad DeVille Questions
  138. Need help on 98 cad seville sls
  139. cometic, felpro or gm oem! Head gasket survey.
  140. Thank You so much
  141. Help
  142. Look at these plugs
  143. Fi A/f Ratio
  144. N* Headgasket Replacement
  145. northstar eldorado swap
  146. new HG, coolant issues
  147. replaced hg, low oil pressure
  148. What else should I clean when replacing intake plenum?
  149. 94 STS N* Top End Oil leak
  150. 94 STS High HC at Idle
  151. Is this a cracked intake plenum? (see attached pics)
  152. spare parts after rebuild **HELP**
  153. New Bar's Leaks Product
  154. Newest Intake work...
  155. Headgaskets!
  156. Fuel pressure or pump problem? Need Help!
  157. northstar engine
  158. 2001 Seville dies out????
  159. My Head gasket job
  160. 2000 SLS uses 1qt oil every 500mi - Should I be worried???
  161. air filter
  162. Please help 1995 STS "Service Engine Soon" jumping out of gear?
  163. Northstar Rant
  164. A/C blowing warm air
  165. Sorry for the rant but early NS owners need to know
  166. sealant- case 1/2's
  167. 2000 N* Rough Idle in Seville STS
  168. 01 STS running rich
  169. Is car driveable with Blown HG?
  170. heating and a/c system please help
  171. clogged radiator?????
  172. Headgasket, or what?
  173. no spark
  174. how to replace motor mount on 97 deville northstar
  175. Which Northstar do I have?
  176. 94jN* What do I use for a sealant when I put the intake manifold back on?
  177. no spark
  178. Professionally Painted Northstar Engine Covers
  179. Reuse main bearings?
  180. Noise coming from LH head - valve?
  181. 94 N* Help white smoke out of exhaust
  182. Overheating mystery
  183. New Coolant
  184. PLEASE HELP!!! Stalling when warm and smoking alternator
  185. Car lunges forward when tapping gas
  186. 93, 94 or 95 Eldo worth buying?
  187. Does 2006 Dts Engines Have Headgasket Problems Also?
  188. misc questions
  189. northstar gone bad....AHHHHH
  190. camshaft sensor
  191. Replacing Cylinder Heads Project
  192. newest member of the headgasket club
  193. 1999 northstar warped heads
  194. Northstar engine swap
  195. p0340 camshaft position sensor
  196. northstar in a monte carlo
  197. could this be anything else?
  198. for under 8k would anybody buy a NS Caddy?
  199. No spark,Please help !!
  200. N* Water Pump...I think
  201. 4.6L Northstar CMP tests and replacement ?
  202. 4t80-e
  203. Random Misfire P0300 code
  204. Head Gasket Failure Signs
  205. Which Head Gasket to use?
  206. Swap LD8 in for a L37
  207. Demise of the Northstar
  208. head gasket
  209. GM service manual dvd
  210. The Ultimate FWD Cadillac Northstar Build
  211. No pulses on the injector wires?
  212. Need a connecting rod nut
  213. are coils interchangible from front to rear?
  214. 99" Sts, Rough Idle When Cold. Help!!!
  215. Overheating after new headgasket
  216. Engine running at higher then normal RPM`s
  217. Replacing starter-port intake?
  218. is this normal?
  219. How soon do you replace oil pan gasket?
  220. Torque Multiplier Upgrade ??????? hmmm
  221. mpg and oil consumption 00 dts
  222. 2000 N* Cracked Block & Questions
  223. Tranny Bolts
  224. ICM location anyone- need help!
  225. P0107 then P0201 thru P0208 runs fine
  226. 586Hp Northstar, in a grand prix
  227. Looking for head gasket repair in Northwest, Indiana
  228. Brands Of Oil ?
  229. is it the head or intake manifold gasket?
  230. drive by wire nitrous kit ???
  231. 98 STS Engine Removal
  232. About Gas
  233. Shocks
  234. do you need premium gas in a 4.6 nothstar
  235. New Mods on Customers cars
  236. The smell of coolant~
  237. Setting Camshaft timing HELP!!!
  238. Northstar Over Heating After Waterpump Replacement
  239. how to clean out intake??
  240. emissions light comes on
  241. random miss at idle
  242. spark plugs and wires
  243. Idle
  244. Looking for some more power!
  245. What coolant do i use
  246. 97 Seville Overheat Try This One
  247. northstar smoking engine
  248. Performance Programing 01 DTS
  249. misfire
  250. 2006 Dts Rough Idle On Morning Start Up?