: Northstar Engines and System Technical Discussion



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  1. Combustion Leak Detection
  2. Po41 code set
  3. Porting the throttlebody
  4. Another 97 DeVille Overheating Issue
  5. Can '03 Seville display digital coolant temp reading?
  6. BARS Head Gasket Fix and Aux Fan control
  7. Whistling pressure relief on N* Intake Manifold???
  8. Who needs a Timesert kit- I have one!!
  9. where does this thing go (headgasket job)
  10. Hard Start
  11. any tips on removing coolant crossover?
  12. 1996 Deville Intake??
  13. Performing "block" test from Napa
  14. Service A/c and A/C compressor off
  15. draining trans fluid 4T80E
  16. no start lots of codes network ?
  17. engine swap
  18. 1993 to 1999 Cam Wear Fix
  19. 94 Eldo ETC
  20. Need diagnosis - 98 STS overheating
  21. Professional Coolant Flush
  22. 4T80-E transaxle
  23. Oil Adapter housing Problems :(
  24. Head gasket, possibly cracked block...
  25. etanol blend, what does it do to the n?
  26. Loaded '03 STS 103k great shape - Dealer says it's the head gaskets.
  27. Problem with my Fast Chip
  28. Is there a Northstar FAQ section?
  29. 97 sts auto radio shut off
  30. Severe engine miss at idle-dirty gas in filter
  31. How Do I Change the ignition switch
  32. Cadillac De Ville 1999 OverHeat
  33. NO START, but the battery is good
  34. STS "Limited to 90 Miles an Hour" Message
  35. 1997 STS Ghostly Noise from Vacuum Leak?
  36. 4T80E bellhousing: starter?
  37. Blown Head Gasket On A 97 Deville
  38. North Star & Transmission Issues
  39. Head Gaskets
  40. Oil Housing
  41. North Star & Transmission Issues
  42. 4t80e problems
  43. Reverse problem someone please help me please
  44. AC & Intake
  45. '99 El Dorado Trans Question 2
  46. '99 El Dorado Tranaxle Modulator Location and Replacement
  47. Compression and oil consumption
  48. Anyone sells lower temperature thermostats?
  49. 1996 Deville Trouble Codes--Help Me!
  50. Aftermarket coils
  51. 05 STS V8 pcm reprogramming?
  52. '99 El Dorado White Smoke 70 mph and up
  53. Decel Stall
  54. no crank
  55. Who wants headers?!?!
  56. replacing oil pressure sending unit
  57. Northstar intermittent heating problem
  58. Compressed Natural Gas
  59. Proper A/C Recharge Pressure Spec?
  60. Head Bolt Torque
  61. what to do with a code
  62. Need headgaskets replaced...Twin Cities, MN area...
  63. Help finding exterior ground location IC Module
  64. Ran out of gas - Now will not start
  65. Hard Starting N* And Unknown Code
  66. Just wanted to check on some codes P0171 and P0134
  67. Ignition Miss - '98 DeVille
  68. Oil Testing, laboratories, and Additives
  69. What timesert kit is this referencing?
  70. Block Test Confirms!...or ?
  71. 2000 Deville with Denso plugs
  72. VIN or other link to body stamped on block?
  73. Prevent head gasket failure
  74. 2000 DeVille Northstar Problem
  75. Previously Timeserted block?
  76. turbo charging a Northstar
  77. p1350 & p1375 codes?
  78. bad fuel economy, rough(er) idle, need help!
  79. What gets relearned after battery disconnect?
  80. idle speed control
  81. 99 Deville Hesitation during Acceleration
  82. strange noise please help
  83. What happen to my overdrive???????
  84. Northstar Overheating!!! HELP
  85. After Timesert HG Repair Service Schedule?
  86. Top engine compartment struts
  87. '01 Deville with Half case leak, any temp fixes/band-aides?
  88. crankshaft sensor location ?
  89. Anyone heard of this?
  90. Are All Xlr's The New Style Closed Deck?
  91. MAF Translator
  92. Are A & B Crankshaft Position Sensors the same sensor??
  93. How much bubbling in surge tank indicates bad head gasket?
  94. Sick Baby
  95. Jet Power Flow Mass Air Sensor
  96. Everything You ever Wanted To Know About Cooling System Sealant Tabs
  97. O2, IAT, MAF sensor reliability on 2000 N*?
  98. Another Successful Mod (albeit potentially destructive)
  99. Questions On Rebuilding a Northstar Engine
  100. eldorado1 (and others)...my brain is failing me...help!
  101. Kent-moore Inserts, Anyone Every Use Them?
  102. 1996 Eldorado Won't Start
  103. 93 STS Northstar wont start
  104. radiator hose sucking itself in after car cools off
  105. upper trans oil cooler hose leaking
  106. What to do with these? (headgasket help)
  107. Not Again
  108. How Much Coolant?!?!
  109. 99 STS Northstar and Trans axle Problem
  110. No access to PCM info via dashboard OBD?
  111. smoking engine after install
  112. Frenchy ask help for his cadillac sts
  113. Headgaskets And "time-serts"!?
  114. Rough runner when it rains. 93 n'star
  115. ~Cadillac Deville Concours 59,000 A DISASTER??~
  116. 93 Allante w/Northstar Tranny Issues
  117. What other engines fit a 1999 Cadillac sts?
  118. Best years for N* between 93 and 99
  119. Any possible options to fix this engine noise?
  120. P0171 to lean code?
  121. 98 Deville theft sytem problem??
  122. Leave no bolt behind - Transmission Case
  123. 2002 Deville HG Replacement
  124. 00 N* still rough idle after changing plenum, cleaning TB
  125. I broke a water pump pulley
  126. Catalytic Convertor Clogged
  127. OH no...another one!
  128. getting ready to start this hd job
  129. Looking for a 2000-2005 Deville/DHS
  130. Anyone Swapped a 4.4 SC Engine?
  131. power steering pressure hose
  132. Thinking of coming over to the N* camp....
  133. Main Bearing Cap Torque
  134. remote start diy <help please>
  135. Symptoms of broken motor mount (2000 STS) ??
  136. N* cams
  137. Check Gas Cap Code
  138. N* dress ups
  139. Fuel Cutoff For Z-rated Sts
  140. Possible Fuel issue?
  141. 2001 Deville thermostat
  142. Help!!!what Parts Do I Need For N*headgasket Replacements?
  143. Another overheater...
  144. Is it ok..........
  145. Engine oil level sensor leaking
  146. How to install Nitrous the correct way! I need input
  147. Are There any Hot Rodder's here?
  148. Lifter, Cam, Valve Issue? (Sounds like Chubby Ranger)
  149. going to attempt head gaskets
  150. 1993 Northstar Rough Idle
  151. check this out if you have had cooling system trouble ie headgaskets
  152. PCM 0101 code set on WOT
  153. 96 Cad DeVille Questions
  154. Need help on 98 cad seville sls
  155. cometic, felpro or gm oem! Head gasket survey.
  156. Thank You so much
  157. Help
  158. Look at these plugs
  159. Fi A/f Ratio
  160. N* Headgasket Replacement
  161. northstar eldorado swap
  162. new HG, coolant issues
  163. replaced hg, low oil pressure
  164. What else should I clean when replacing intake plenum?
  165. 94 STS N* Top End Oil leak
  166. 94 STS High HC at Idle
  167. Is this a cracked intake plenum? (see attached pics)
  168. spare parts after rebuild **HELP**
  169. New Bar's Leaks Product
  170. Newest Intake work...
  171. Headgaskets!
  172. Fuel pressure or pump problem? Need Help!
  173. northstar engine
  174. 2001 Seville dies out????
  175. My Head gasket job
  176. 2000 SLS uses 1qt oil every 500mi - Should I be worried???
  177. air filter
  178. Please help 1995 STS "Service Engine Soon" jumping out of gear?
  179. Northstar Rant
  180. A/C blowing warm air
  181. Sorry for the rant but early NS owners need to know
  182. sealant- case 1/2's
  183. 2000 N* Rough Idle in Seville STS
  184. 01 STS running rich
  185. Is car driveable with Blown HG?
  186. heating and a/c system please help
  187. clogged radiator?????
  188. Headgasket, or what?
  189. no spark
  190. how to replace motor mount on 97 deville northstar
  191. Which Northstar do I have?
  192. 94jN* What do I use for a sealant when I put the intake manifold back on?
  193. no spark
  194. Professionally Painted Northstar Engine Covers
  195. Reuse main bearings?
  196. Noise coming from LH head - valve?
  197. 94 N* Help white smoke out of exhaust
  198. Overheating mystery
  199. New Coolant
  200. PLEASE HELP!!! Stalling when warm and smoking alternator
  201. Car lunges forward when tapping gas
  202. 93, 94 or 95 Eldo worth buying?
  203. Does 2006 Dts Engines Have Headgasket Problems Also?
  204. misc questions
  205. northstar gone bad....AHHHHH
  206. camshaft sensor
  207. Replacing Cylinder Heads Project
  208. newest member of the headgasket club
  209. 1999 northstar warped heads
  210. Northstar engine swap
  211. p0340 camshaft position sensor
  212. northstar in a monte carlo
  213. could this be anything else?
  214. for under 8k would anybody buy a NS Caddy?
  215. No spark,Please help !!
  216. N* Water Pump...I think
  217. 4.6L Northstar CMP tests and replacement ?
  218. 4t80-e
  219. Random Misfire P0300 code
  220. Head Gasket Failure Signs
  221. Which Head Gasket to use?
  222. Swap LD8 in for a L37
  223. Demise of the Northstar
  224. head gasket
  225. GM service manual dvd
  226. The Ultimate FWD Cadillac Northstar Build
  227. No pulses on the injector wires?
  228. Need a connecting rod nut
  229. are coils interchangible from front to rear?
  230. 99" Sts, Rough Idle When Cold. Help!!!
  231. Overheating after new headgasket
  232. Engine running at higher then normal RPM`s
  233. Replacing starter-port intake?
  234. is this normal?
  235. How soon do you replace oil pan gasket?
  236. Torque Multiplier Upgrade ??????? hmmm
  237. mpg and oil consumption 00 dts
  238. 2000 N* Cracked Block & Questions
  239. Tranny Bolts
  240. ICM location anyone- need help!
  241. P0107 then P0201 thru P0208 runs fine
  242. 586Hp Northstar, in a grand prix
  243. Looking for head gasket repair in Northwest, Indiana
  244. Brands Of Oil ?
  245. is it the head or intake manifold gasket?
  246. drive by wire nitrous kit ???
  247. 98 STS Engine Removal
  248. About Gas
  249. Shocks
  250. do you need premium gas in a 4.6 nothstar