: Northstar Engines and System Technical Discussion



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  1. 00 N* still rough idle after changing plenum, cleaning TB
  2. I broke a water pump pulley
  3. Catalytic Convertor Clogged
  4. OH no...another one!
  5. getting ready to start this hd job
  6. Looking for a 2000-2005 Deville/DHS
  7. Anyone Swapped a 4.4 SC Engine?
  8. power steering pressure hose
  9. Thinking of coming over to the N* camp....
  10. Main Bearing Cap Torque
  11. remote start diy <help please>
  12. Symptoms of broken motor mount (2000 STS) ??
  13. N* cams
  14. Check Gas Cap Code
  15. N* dress ups
  16. Fuel Cutoff For Z-rated Sts
  17. Possible Fuel issue?
  18. 2001 Deville thermostat
  19. Help!!!what Parts Do I Need For N*headgasket Replacements?
  20. Another overheater...
  21. Is it ok..........
  22. Engine oil level sensor leaking
  23. How to install Nitrous the correct way! I need input
  24. Are There any Hot Rodder's here?
  25. Lifter, Cam, Valve Issue? (Sounds like Chubby Ranger)
  26. going to attempt head gaskets
  27. 1993 Northstar Rough Idle
  28. check this out if you have had cooling system trouble ie headgaskets
  29. PCM 0101 code set on WOT
  30. 96 Cad DeVille Questions
  31. Need help on 98 cad seville sls
  32. cometic, felpro or gm oem! Head gasket survey.
  33. Thank You so much
  34. Help
  35. Look at these plugs
  36. Fi A/f Ratio
  37. N* Headgasket Replacement
  38. northstar eldorado swap
  39. new HG, coolant issues
  40. replaced hg, low oil pressure
  41. What else should I clean when replacing intake plenum?
  42. 94 STS N* Top End Oil leak
  43. 94 STS High HC at Idle
  44. Is this a cracked intake plenum? (see attached pics)
  45. spare parts after rebuild **HELP**
  46. New Bar's Leaks Product
  47. Newest Intake work...
  48. Headgaskets!
  49. Fuel pressure or pump problem? Need Help!
  50. northstar engine
  51. 2001 Seville dies out????
  52. My Head gasket job
  53. 2000 SLS uses 1qt oil every 500mi - Should I be worried???
  54. air filter
  55. Please help 1995 STS "Service Engine Soon" jumping out of gear?
  56. Northstar Rant
  57. A/C blowing warm air
  58. Sorry for the rant but early NS owners need to know
  59. sealant- case 1/2's
  60. 2000 N* Rough Idle in Seville STS
  61. 01 STS running rich
  62. Is car driveable with Blown HG?
  63. heating and a/c system please help
  64. clogged radiator?????
  65. Headgasket, or what?
  66. no spark
  67. how to replace motor mount on 97 deville northstar
  68. Which Northstar do I have?
  69. 94jN* What do I use for a sealant when I put the intake manifold back on?
  70. no spark
  71. Professionally Painted Northstar Engine Covers
  72. Reuse main bearings?
  73. Noise coming from LH head - valve?
  74. 94 N* Help white smoke out of exhaust
  75. Overheating mystery
  76. New Coolant
  77. PLEASE HELP!!! Stalling when warm and smoking alternator
  78. Car lunges forward when tapping gas
  79. 93, 94 or 95 Eldo worth buying?
  80. Does 2006 Dts Engines Have Headgasket Problems Also?
  81. misc questions
  82. northstar gone bad....AHHHHH
  83. camshaft sensor
  84. Replacing Cylinder Heads Project
  85. newest member of the headgasket club
  86. 1999 northstar warped heads
  87. Northstar engine swap
  88. p0340 camshaft position sensor
  89. northstar in a monte carlo
  90. could this be anything else?
  91. for under 8k would anybody buy a NS Caddy?
  92. No spark,Please help !!
  93. N* Water Pump...I think
  94. 4.6L Northstar CMP tests and replacement ?
  95. 4t80-e
  96. Random Misfire P0300 code
  97. Head Gasket Failure Signs
  98. Which Head Gasket to use?
  99. Swap LD8 in for a L37
  100. Demise of the Northstar
  101. head gasket
  102. GM service manual dvd
  103. The Ultimate FWD Cadillac Northstar Build
  104. No pulses on the injector wires?
  105. Need a connecting rod nut
  106. 150 shot on stock 2008 DTS??
  107. are coils interchangible from front to rear?
  108. 99" Sts, Rough Idle When Cold. Help!!!
  109. Overheating after new headgasket
  110. Engine running at higher then normal RPM`s
  111. Replacing starter-port intake?
  112. is this normal?
  113. How soon do you replace oil pan gasket?
  114. Torque Multiplier Upgrade ??????? hmmm
  115. mpg and oil consumption 00 dts
  116. 2000 N* Cracked Block & Questions
  117. Tranny Bolts
  118. ICM location anyone- need help!
  119. P0107 then P0201 thru P0208 runs fine
  120. 586Hp Northstar, in a grand prix
  121. Looking for head gasket repair in Northwest, Indiana
  122. Brands Of Oil ?
  123. is it the head or intake manifold gasket?
  124. drive by wire nitrous kit ???
  125. 98 STS Engine Removal
  126. About Gas
  127. Shocks
  128. do you need premium gas in a 4.6 nothstar
  129. New Mods on Customers cars
  130. The smell of coolant~
  131. Setting Camshaft timing HELP!!!
  132. Northstar Over Heating After Waterpump Replacement
  133. how to clean out intake??
  134. emissions light comes on
  135. random miss at idle
  136. spark plugs and wires
  137. Idle
  138. Looking for some more power!
  139. What coolant do i use
  140. 97 Seville Overheat Try This One
  141. northstar smoking engine
  142. Performance Programing 01 DTS
  143. misfire
  144. 2006 Dts Rough Idle On Morning Start Up?
  145. What Causes Heagaskets To Blow?
  146. Blown Engine
  147. Air ram cones
  148. northstar engine knock help!
  149. Help identify foreign object jamming intake valve open
  150. 01 Dts Rough Idle
  151. dangrieco
  152. Spark plugs ?
  153. changing the governor
  154. Delaney Power Extractor Engine
  155. 94 cadillac sts ECM install
  156. Anyone here in Michigan
  157. Where to find new camshafts?
  158. Please don't flame the noob...codes and problem
  159. Real octane booster?
  160. Motor for 96 STS????
  161. What do you think of this? ECU Modifier
  162. Root Cause of Head gasket Failure and a Fix?
  163. Wont start when its cold
  164. Cadillac sts '94 problem
  165. 1995 STS sudden problem
  166. Oil burning TSB.. I know this has been talked about before
  167. Oil Under The Beauty Cover
  168. 97 STS Starting after dead battery
  169. Can you run your car with water?
  170. New to the site, wondering about repairs
  171. Recommndations for N* Tech in Boston/RI Area?
  172. Oil pressure light
  173. Plz Listen 2 My story Need Help ASAP
  174. Timing and Octane....I searched.
  175. Head Gasket replacement 97STS
  176. is it worth it?.
  177. Head Gaskets Failure 97 STS
  178. White smoke in the exhaust which clears after idling 5 minutes
  179. 2002 DTS trouble
  180. Heater Fan
  181. northstar poor mileage
  182. 2001 STS engine knock
  183. N* Camshaft Removal: Special Tools Required?
  184. Block Sealer??
  185. After Market Code Scanner
  186. 2005 STS 3.6L Engine Oil Sensors
  187. Ok Someone Please Help My 97 Deville Not Running.............
  188. best Seville STS to buy ???
  189. Strange Call
  190. Transmission Force Motor 1994 Eodorado - Can it be done without pulling the trans?
  191. No 24x Refrence Signal
  192. OBD II Manual
  193. 2002 sts engine codes
  194. Noise on Startup when Cold
  195. question about trans gasket
  196. 98 Eldo Rebuilt Motor
  197. Pulling camshaft cover - can it be done w/out dropping engine?
  198. Thermostat
  199. 97 Deville w/ N* Battery(?) problems
  200. head gasket blown replacing motor
  201. AGAP Northstar reman engine NIGHTMARE
  202. Oil leak 2000 Deville
  203. 96 Eldorado ABS and Traction Control TRBL
  204. intermittent Bubbling noise in dashboard.. Any ideas?
  205. gasket questions on the northstar
  206. engine swap
  207. LD8 Engine issue (2005 Bonneville GXP)
  208. Custom made 8.5mm MSD spark plug wires
  209. oilpan/trans pan gasket...
  210. water pump tension pulley
  211. possible 1/2 case oil leak.....
  212. Northstar Oil Pan Help Needed
  213. Removing the N* from an el do?
  214. Problems with 02 DHS, need more opinions
  215. Can you name this Car?
  216. Two 4.6 Northstar Motors What are they Worth?
  217. How hot can you go?
  218. Throttle Position Sensor 94 N* - how to replace?
  219. Questions about low-mile oft-stored '02 Eldorado
  220. P0741 & P1860
  221. 96 deville egr valve cleaning
  222. Hey, all you guys, check radiator hoses
  223. Anyone who can read motor serials get in here (calling AJ)
  224. Pinging above 3000RPM with 93 octane
  225. Northstar mechanic
  226. now mine STS too Broken HG :(
  227. Cam Question For AJ or Ewill
  228. 2000-2005 Headgasket...
  229. Northstar Oil Leak
  230. 99 sts stalling out
  231. roller lifters or flat tappet
  232. po39 tcc vcc help
  233. 2000 Deville DTS Overheating
  234. Track Results and Video's
  235. big problems on 97 deville>please help me
  236. Compressor/ Air Ride Help
  237. Dealer Flush
  238. Overheating
  239. head gasket seeping oil
  240. No start (cranks OK)
  241. Advice on leak detection kits please
  242. Northstar dimensions
  243. AJ-Question
  244. New here need help
  245. help please
  246. Why didn't Cadillac make a larger displacement Northstar?
  247. Check Gas Cap Message.
  248. Changing the cams on an STS to the SLS Cams
  249. why wont my fans work?
  250. 99 STS, almost working