: Northstar Engines and System Technical Discussion



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  1. Oil pressure light on at idle - oil filter discussion
  2. Barely running northstar-'99 STS
  3. 99 STS - Ran Into a Few Problems
  4. What year 4.6's are known for poor head bolts?
  5. Timing marks - 2005 Deville
  6. How to identify VIN 9 engine, out of car
  7. Northstar wine
  8. NorthStar swap into Buick LaCrosse?
  9. New member - 1994 ETC Northstar
  10. Crack in oil pan. JB Weld?
  11. A quick 'thank you'
  12. How I fixed my head gasket/overheating problems on my '99 Northstar
  13. 2001 DHS overheating and Knocking?
  14. So how much longer can I drive with the blown head gaskets?
  15. 99 Eldorado/Looking for reccommendations for Las Vegas Mechanic - head bolts
  16. '04 Deville Engine Oil Leaks
  17. Seville 1999 - engine removal from top
  18. Northstar Performance on Performance TV
  19. Radiator hose temps - 2005 Deville
  20. Northstar ICM signals, not generated when cranking
  21. Northstar leaking/consuming lots of oil
  22. Looking for an engine swap advice
  23. 2002 SLS Fuel Regulator, Vacuum or what?
  24. 40 Ft Lbs, 45 Horsepower from a tune - VIN Y Northstar, 97 Deville.
  25. who sells, other than the dealer: the head locator pins? 03522352
  26. Seville 99, ignition cables routing
  27. Oil pressure sensor too close to motor mount
  28. Northstar flat tappet cam followers - which years?
  29. New member question 1997 Deville head gasket ?
  30. 2005 4.6l Y vin into a 2006 DTS
  31. 2005 sts northstar engine
  32. 4.6 Northstar - top overhaul
  33. 4T80E Question...
  34. 98 deville p0741 p0171 p0174
  35. Problem with fit of oil pickup tube into new oil distribution plate.
  36. Suggestions for piston ring de-carb while heads are off during HG replacement.
  37. Main bearing bolt torquing. dry or oiled?
  38. I Need help were these brackets go
  39. Intermittent "battery not charging" red indicator
  40. Head Deck Surface - Second Opinion Needed
  41. LH2 on LS mounts with a T56?
  42. 1995 Eldorado pops on acceleration, no idea what it is.
  43. no water moving 1999 seville
  44. Main bolt seats - necessity to re-thread
  45. Headgaskets and VCC to TCC
  46. 2002 DHS blown head gasket removal without removing engine
  47. Blown Head Gasket Parts Advice - 2001 DTS
  48. Head gasket failure - how it become
  49. 05 Deville Timing chain guide failure and gray oil
  50. 1999 Northstar head gasket sets - price on ebay
  51. 1999 Northstar head bolt thread repair questions
  52. 2004 SRX Idler pulley ripped out of block
  53. 1995 Eldorado hesitates a little on acceleration between 1500-2000 rpm
  54. Re-ring kit - what size to choose?
  55. Oil manifold plate unorthodox treatment
  56. Overhauling - bolts?
  57. Crack or casting imperfection?
  58. Timing Chain Guide\Tensioner "Toppings" - how to call and where to buy?
  59. 1999 Seville overheats when going up long grades
  60. Seville 2003, Code P0300 right after changed upper radiator hose
  61. FPR Vacuum Hose ?
  62. Coolant system message
  63. 1997 Northstar Eldorado - possible blown head gasket
  64. Northstar timing
  65. A poser - differential diagnosis: blown head gasket or bad coil pack (or injector)
  66. Doing head gaskets in frame
  67. 2002 Northstar hearse overheat?
  68. Losing coolant, rough running @ start-up
  69. Considering a HG fix + a possible budget rebuild
  70. Cylinder #8 Misfire, changed plugs & coil, now what?
  71. Northstar FWD or RWD owner? You NEED to study this!
  72. Northstar engine and head gasket issues
  73. Preventative water pump replacement ??
  74. 2005 Deville - Remove and Install Fuel Injectors
  75. How to evaluate a northstar before buying?
  76. how do you remove steering coupling from steering gear and ABS modulator 99 Eldorado
  77. What company make a good head gasket for the northstar engine
  78. 2002 DTS - A/C compressor clutch cycle?
  79. Which HG repair is the best GM time sert,NS300L Insert or SureGrip Head Stud Kit
  80. need information how to best and easy way to remove a engine for a 99 Eldorado
  81. 1995 4t80e output shaft came out with axle shaft?
  82. 1996 El Dorado engine knocking?
  83. My 2001 Deville's Engine is Overheating
  84. Did Cadillac fix the head bolt problem in 2005 northstar ?
  85. 4.6 Swap into 68 Deville
  86. 04 Deville - 1,3,5,7 misfiring
  87. 1996 - 2003 Northstar head bolt torque specs
  88. 2000 STS head bolt torque specs question and head photos
  89. 95 STS Northstar idles up and down pretty much all the time
  90. rear ignition cassette removal-2001
  91. Aurora L47 V8
  92. 4T80E Shift Kits?
  93. Northstar pre oil change cleaners / additives
  94. 4T80E Transmission will not engage (in any gear front or back)
  95. 2000 Eldorado Engine Noise
  96. Keeping 1st gear with T/C off on the 96-99 Northstars - Tuning update
  97. water pump removal
  98. Rear main seal question...
  99. NorthStar Top End Teardown in Car - Cylinder Head Insert Repair
  100. 1997 Northstar insert and timing help
  101. Check Engine Light won't go off - 2003 DTS
  102. Cylinder Compression
  103. P0300 - Misfires on cyls 1 and 2
  104. What's this gasket?
  105. torx size for studs studs
  106. 2000 Deville Now Burning A Quart Every 300 Miles Now What? 115k
  107. Odd possible HG failure - 2003 STS
  108. Check Coolant Level
  109. 1997 Deville Possible topend, maybe full rebuild!
  110. 2001 SLS Ignition Coil Packs
  111. Possible Head Gasket 2001 Deville
  112. 01 Overheating; suspect coolant flow Please advise.
  113. 2005 Deville Head Gasket
  114. Northstar thermostat housing leaks, possible overheating
  115. 2009 DTS 100,000 miles - burning oil smell
  116. Northstar timing chain tensioners
  117. 2000 DeVille - high temps, possible head gasket leak
  118. Hello all, I have an intake question
  119. valve roller rockers-2001
  120. Northstar block question
  121. Snakes
  122. Freeze Plugs
  123. Oil filer adapter o rings and oil level tube o ring
  124. LD8 vs LH2/LC3 Exhaust Flange
  125. Another Overheating question
  126. Cleaning Carbon Deposits on pistons/rings ??????
  127. 06 Luceren Northstar V8 overheating and heater core coolant leakage?
  128. P0140 after New Sensor
  129. freeze spray for guide pin removal
  130. Swap question
  131. Swapping a Y for a 9-2001
  132. Engines - 2001 SLS with cracked block
  133. 2000 STS wont start
  134. I cant get the front valve cover off a 1999 Seville Northstar
  135. trouble code P0175
  136. 2000 deville won't start due to gears
  137. 06 SRX N* VVT Part identification
  138. Building a 1996 Northstar base Deville engine
  139. 2005 Northstar Lifters Ticking
  140. Recommended spark plug for 2001 Northstar
  141. Rad Fan Diagnosis - 1997 SLS
  142. Deville cooling fans problem
  143. Best gasket/bolt kit for 1999 Northstar head job
  144. Cadillac Deville Engine swap 95 in a 98
  145. 99 Deville 4.6 Northstar - left intake camshaft replace
  146. 2000 STS with P0300 #4 - misfire - valvetrain damage
  147. 2002 Deville - P 0741 alone, long trip ?
  148. Head Gasket dilemma -- 1999 Deville
  149. 02 deville overheated and now starts rough for about 10-20 seconds
  150. Pros and Cons Of A Northstar
  151. Chevron Techron Usage
  152. 2002 STS Head Gasket repair... and more?
  153. 2000 Deville - Coolant leak from overflow tube
  154. Cassette Bolts
  155. Help, car won't start!
  156. 4T80E Fluid level
  157. Just curious ...
  158. 95 Vin9 transmission
  159. This sounds BAD... 2004 Deville Northstar with ticks and rattles
  160. 1998 STS some oil use, drips of oil every couple days & suspect head gasket
  161. Fuse issues - 1996 SLS injector circuits
  162. Oil leak at head.
  163. 94 Concours with First Generation Northstar
  164. Motor Rebuild Problem
  165. power steering
  166. 1999 Deville - P 0404 but I do not think its the EGR Valve
  167. New to me 08' DTS service question.
  168. 2011 Northstar HG
  169. Need a recommended Northstar rebuilder for purchase of new engine for my 01 deville.
  170. Details regarding the P0741 fix and engine reseal, Seville -99
  171. Guys:How many miles does your N* Motor have, WITHOUT ever doing a HeadGasket repair??
  172. 1996 Engine Swap
  173. 2004 DHS - plugs, coils changed - severe miss is back
  174. drill plate for studs
  175. Putting a NorthStar together in a 96 Deville. Need couple a bolts and some pictures.
  176. priming the oil system
  177. 1996 Deville - coolant leak
  178. Can you identify this bellhousing?
  179. code Y or 9-how do you tell on an '01?
  180. What brand of starter?
  181. Can plug wires deteriorate just from age?
  182. 300,000 mile Northstar
  183. Northstar 4.6 in a 2008 Cheverlot Silverado 1500 LS?
  184. Help Identifying This Throttle Body
  185. prefered oxygen sensor
  186. Antifreeze northstar motor
  187. easy test for blown head gasket
  188. Bank 1 Sensor 1; 96 Deville
  189. Anti-seize on spark plugs?
  190. 2003 STS intermittant P0101
  191. Lower crankcase seal job...
  192. Northstar Mechanics Near Venice, FL
  193. Northstar years - good and bad ?
  194. Is this the original engine in my car
  195. 2000 Deville - possible overheating ??
  196. 1999 deville - new water pump leak
  197. Northstar engine in 2006 Buick Lucerne Issues
  198. Great site for northstars
  199. To dex or not to dex, that is the question
  200. 2001 Deville overheating
  201. HB inserts-2001
  202. Purpose of Valve Reliefs in 1st Gen Motors
  203. Is there a way to look at a N*in a used car & see if the HG bolts have been changed?
  204. Any writeups on 03 DTS 4.6L timing chain replacement?
  205. 1996 Northstar - extended cold cranking periods
  206. 1996 Northstar - CMP location ?
  207. '97 Seville overheating after 2 Miles and after Thermaseal treatment
  208. Northstar lower crankcase torque?
  209. ECM disconnected
  210. 2001 Eldorado - Fix Headgasket or Engine Swap?
  211. Camshaft Position Sensor Replacement
  212. 1993 Allante - engine stalls and bogs. CMP OK
  213. Dune Cruiser...
  214. 1993 Northstar parts needed
  215. E10 and/or Premium fuel
  216. northstar crankshaft main journal size
  217. 1999 DeVille Head Stud, Gasket Repair
  218. Northstar Oil Pump
  219. 1998 Eldorado Knocking when warm
  220. 160000mls service - now engine missfires
  221. Failed Emissions NEED ADVICE!
  222. Headgasket how to prevent that ?
  223. Power steering issue after engine work - 2002 DHS
  224. Classic overheating (99 eldo) pressure relief valve clogged?
  225. timing chain tensioner question
  226. Could this be a busted roller cam follower ?
  227. Dexcool or the green coolant?
  228. 4.6 northstar timing
  229. OIL, 5W30 vs 5W40
  230. Nitrous supporting mods
  231. Transmissions to head brace.
  232. Cylinder Head Dowel Pins???
  233. 2000 DTS used bad Intake manifold
  234. Evap purge valve
  235. 2000 DTS started puilling down engine today
  236. So she put the wrong spark plugs into a 2001 DHS . . .
  237. North Star coolant
  238. NorthStar Performance
  239. 2002 Northstar engine repair
  240. NorthStar Performance - rebuilt rngine info
  241. Northstar transmission interchangeability
  242. What's still good and what's not...
  243. Trying to losing crank pulley bolt and it jumped time cant get the bolt to loosen!!
  244. L37 and LD8 engine interchange question
  245. Guess how many 1993-2003 N* are still on the road, without Head Gasket Failure?
  246. NORTHSTAR Head CASTING #12585774 - engine fit ??
  247. 2001 STS Alternator Not Charging
  248. 2002 STS Cooling Fan Operation
  249. Snapped bolt - serpentine idler, 1994 N*
  250. 1998 Northstar FWD torque converter options