: Northstar Engines and System Technical Discussion



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