: Northstar Engines and System Technical Discussion



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  1. O2, IAT, MAF sensor reliability on 2000 N*?
  2. Another Successful Mod (albeit potentially destructive)
  3. Questions On Rebuilding a Northstar Engine
  4. eldorado1 (and others)...my brain is failing me...help!
  5. Kent-moore Inserts, Anyone Every Use Them?
  6. 1996 Eldorado Won't Start
  7. 93 STS Northstar wont start
  8. radiator hose sucking itself in after car cools off
  9. upper trans oil cooler hose leaking
  10. What to do with these? (headgasket help)
  11. Not Again
  12. How Much Coolant?!?!
  13. 99 STS Northstar and Trans axle Problem
  14. No access to PCM info via dashboard OBD?
  15. smoking engine after install
  16. Frenchy ask help for his cadillac sts
  17. Headgaskets And "time-serts"!?
  18. Rough runner when it rains. 93 n'star
  19. ~Cadillac Deville Concours 59,000 A DISASTER??~
  20. 93 Allante w/Northstar Tranny Issues
  21. What other engines fit a 1999 Cadillac sts?
  22. Best years for N* between 93 and 99
  23. Any possible options to fix this engine noise?
  24. P0171 to lean code?
  25. 98 Deville theft sytem problem??
  26. Leave no bolt behind - Transmission Case
  27. 2002 Deville HG Replacement
  28. 00 N* still rough idle after changing plenum, cleaning TB
  29. I broke a water pump pulley
  30. Catalytic Convertor Clogged
  31. OH no...another one!
  32. getting ready to start this hd job
  33. Looking for a 2000-2005 Deville/DHS
  34. Anyone Swapped a 4.4 SC Engine?
  35. power steering pressure hose
  36. Thinking of coming over to the N* camp....
  37. Main Bearing Cap Torque
  38. remote start diy <help please>
  39. Symptoms of broken motor mount (2000 STS) ??
  40. N* cams
  41. Check Gas Cap Code
  42. N* dress ups
  43. Fuel Cutoff For Z-rated Sts
  44. Possible Fuel issue?
  45. 2001 Deville thermostat
  46. Help!!!what Parts Do I Need For N*headgasket Replacements?
  47. Another overheater...
  48. Is it ok..........
  49. Engine oil level sensor leaking
  50. How to install Nitrous the correct way! I need input
  51. Are There any Hot Rodder's here?
  52. Lifter, Cam, Valve Issue? (Sounds like Chubby Ranger)
  53. going to attempt head gaskets
  54. 1993 Northstar Rough Idle
  55. check this out if you have had cooling system trouble ie headgaskets
  56. PCM 0101 code set on WOT
  57. 96 Cad DeVille Questions
  58. Need help on 98 cad seville sls
  59. cometic, felpro or gm oem! Head gasket survey.
  60. Thank You so much
  61. Help
  62. Look at these plugs
  63. Fi A/f Ratio
  64. N* Headgasket Replacement
  65. northstar eldorado swap
  66. new HG, coolant issues
  67. replaced hg, low oil pressure
  68. What else should I clean when replacing intake plenum?
  69. 94 STS N* Top End Oil leak
  70. 94 STS High HC at Idle
  71. Is this a cracked intake plenum? (see attached pics)
  72. spare parts after rebuild **HELP**
  73. New Bar's Leaks Product
  74. Newest Intake work...
  75. Headgaskets!
  76. Fuel pressure or pump problem? Need Help!
  77. northstar engine
  78. 2001 Seville dies out????
  79. My Head gasket job
  80. 2000 SLS uses 1qt oil every 500mi - Should I be worried???
  81. air filter
  82. Please help 1995 STS "Service Engine Soon" jumping out of gear?
  83. Northstar Rant
  84. A/C blowing warm air
  85. Sorry for the rant but early NS owners need to know
  86. sealant- case 1/2's
  87. 2000 N* Rough Idle in Seville STS
  88. 01 STS running rich
  89. Is car driveable with Blown HG?
  90. heating and a/c system please help
  91. clogged radiator?????
  92. Headgasket, or what?
  93. no spark
  94. how to replace motor mount on 97 deville northstar
  95. Which Northstar do I have?
  96. 94jN* What do I use for a sealant when I put the intake manifold back on?
  97. no spark
  98. Professionally Painted Northstar Engine Covers
  99. Reuse main bearings?
  100. Noise coming from LH head - valve?
  101. 94 N* Help white smoke out of exhaust
  102. Overheating mystery
  103. New Coolant
  104. PLEASE HELP!!! Stalling when warm and smoking alternator
  105. Car lunges forward when tapping gas
  106. 93, 94 or 95 Eldo worth buying?
  107. Does 2006 Dts Engines Have Headgasket Problems Also?
  108. misc questions
  109. northstar gone bad....AHHHHH
  110. camshaft sensor
  111. Replacing Cylinder Heads Project
  112. newest member of the headgasket club
  113. 1999 northstar warped heads
  114. Northstar engine swap
  115. p0340 camshaft position sensor
  116. northstar in a monte carlo
  117. could this be anything else?
  118. for under 8k would anybody buy a NS Caddy?
  119. No spark,Please help !!
  120. N* Water Pump...I think
  121. 4.6L Northstar CMP tests and replacement ?
  122. 4t80-e
  123. Random Misfire P0300 code
  124. Head Gasket Failure Signs
  125. Which Head Gasket to use?
  126. Swap LD8 in for a L37
  127. Demise of the Northstar
  128. head gasket
  129. GM service manual dvd
  130. The Ultimate FWD Cadillac Northstar Build
  131. No pulses on the injector wires?
  132. Need a connecting rod nut
  133. are coils interchangible from front to rear?
  134. 99" Sts, Rough Idle When Cold. Help!!!
  135. Overheating after new headgasket
  136. Engine running at higher then normal RPM`s
  137. Replacing starter-port intake?
  138. is this normal?
  139. How soon do you replace oil pan gasket?
  140. Torque Multiplier Upgrade ??????? hmmm
  141. mpg and oil consumption 00 dts
  142. 2000 N* Cracked Block & Questions
  143. Tranny Bolts
  144. ICM location anyone- need help!
  145. P0107 then P0201 thru P0208 runs fine
  146. 586Hp Northstar, in a grand prix
  147. Looking for head gasket repair in Northwest, Indiana
  148. Brands Of Oil ?
  149. is it the head or intake manifold gasket?
  150. drive by wire nitrous kit ???
  151. 98 STS Engine Removal
  152. About Gas
  153. Shocks
  154. do you need premium gas in a 4.6 nothstar
  155. New Mods on Customers cars
  156. The smell of coolant~
  157. Setting Camshaft timing HELP!!!
  158. Northstar Over Heating After Waterpump Replacement
  159. how to clean out intake??
  160. emissions light comes on
  161. random miss at idle
  162. spark plugs and wires
  163. Idle
  164. Looking for some more power!
  165. What coolant do i use
  166. 97 Seville Overheat Try This One
  167. northstar smoking engine
  168. Performance Programing 01 DTS
  169. misfire
  170. 2006 Dts Rough Idle On Morning Start Up?
  171. What Causes Heagaskets To Blow?
  172. Blown Engine
  173. Air ram cones
  174. northstar engine knock help!
  175. Help identify foreign object jamming intake valve open
  176. 01 Dts Rough Idle
  177. dangrieco
  178. Spark plugs ?
  179. changing the governor
  180. Delaney Power Extractor Engine
  181. 94 cadillac sts ECM install
  182. Anyone here in Michigan
  183. Where to find new camshafts?
  184. Please don't flame the noob...codes and problem
  185. Real octane booster?
  186. Motor for 96 STS????
  187. What do you think of this? ECU Modifier
  188. Root Cause of Head gasket Failure and a Fix?
  189. Wont start when its cold
  190. Cadillac sts '94 problem
  191. 1995 STS sudden problem
  192. Oil burning TSB.. I know this has been talked about before
  193. Oil Under The Beauty Cover
  194. 97 STS Starting after dead battery
  195. Can you run your car with water?
  196. New to the site, wondering about repairs
  197. Recommndations for N* Tech in Boston/RI Area?
  198. Oil pressure light
  199. Plz Listen 2 My story Need Help ASAP
  200. Timing and Octane....I searched.
  201. Head Gasket replacement 97STS
  202. is it worth it?.
  203. Head Gaskets Failure 97 STS
  204. White smoke in the exhaust which clears after idling 5 minutes
  205. 2002 DTS trouble
  206. Heater Fan
  207. northstar poor mileage
  208. 2001 STS engine knock
  209. N* Camshaft Removal: Special Tools Required?
  210. Block Sealer??
  211. After Market Code Scanner
  212. 2005 STS 3.6L Engine Oil Sensors
  213. Ok Someone Please Help My 97 Deville Not Running.............
  214. best Seville STS to buy ???
  215. Strange Call
  216. Transmission Force Motor 1994 Eodorado - Can it be done without pulling the trans?
  217. No 24x Refrence Signal
  218. OBD II Manual
  219. 2002 sts engine codes
  220. Noise on Startup when Cold
  221. question about trans gasket
  222. 98 Eldo Rebuilt Motor
  223. Pulling camshaft cover - can it be done w/out dropping engine?
  224. Thermostat
  225. 97 Deville w/ N* Battery(?) problems
  226. head gasket blown replacing motor
  227. AGAP Northstar reman engine NIGHTMARE
  228. Oil leak 2000 Deville
  229. 96 Eldorado ABS and Traction Control TRBL
  230. intermittent Bubbling noise in dashboard.. Any ideas?
  231. gasket questions on the northstar
  232. engine swap
  233. LD8 Engine issue (2005 Bonneville GXP)
  234. Custom made 8.5mm MSD spark plug wires
  235. oilpan/trans pan gasket...
  236. water pump tension pulley
  237. possible 1/2 case oil leak.....
  238. Northstar Oil Pan Help Needed
  239. Removing the N* from an el do?
  240. Problems with 02 DHS, need more opinions
  241. Can you name this Car?
  242. Two 4.6 Northstar Motors What are they Worth?
  243. How hot can you go?
  244. Throttle Position Sensor 94 N* - how to replace?
  245. Questions about low-mile oft-stored '02 Eldorado
  246. P0741 & P1860
  247. 96 deville egr valve cleaning
  248. Hey, all you guys, check radiator hoses
  249. Anyone who can read motor serials get in here (calling AJ)
  250. Pinging above 3000RPM with 93 octane