: Northstar Engines and System Technical Discussion



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