: Northstar Engines and System Technical Discussion



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  1. Which HG repair is the best GM time sert,NS300L Insert or SureGrip Head Stud Kit
  2. need information how to best and easy way to remove a engine for a 99 Eldorado
  3. 1995 4t80e output shaft came out with axle shaft?
  4. 1996 El Dorado engine knocking?
  5. My 2001 Deville's Engine is Overheating
  6. Did Cadillac fix the head bolt problem in 2005 northstar ?
  7. 4.6 Swap into 68 Deville
  8. 04 Deville - 1,3,5,7 misfiring
  9. 1996 - 2003 Northstar head bolt torque specs
  10. 2000 STS head bolt torque specs question and head photos
  11. 95 STS Northstar idles up and down pretty much all the time
  12. rear ignition cassette removal-2001
  13. Aurora L47 V8
  14. 4T80E Shift Kits?
  15. Northstar pre oil change cleaners / additives
  16. 4T80E Transmission will not engage (in any gear front or back)
  17. 2000 Eldorado Engine Noise
  18. Keeping 1st gear with T/C off on the 96-99 Northstars - Tuning update
  19. water pump removal
  20. Rear main seal question...
  21. NorthStar Top End Teardown in Car - Cylinder Head Insert Repair
  22. 1997 Northstar insert and timing help
  23. Check Engine Light won't go off - 2003 DTS
  24. Cylinder Compression
  25. P0300 - Misfires on cyls 1 and 2
  26. What's this gasket?
  27. torx size for studs studs
  28. 2000 Deville Now Burning A Quart Every 300 Miles Now What? 115k
  29. Odd possible HG failure - 2003 STS
  30. Check Coolant Level
  31. 1997 Deville Possible topend, maybe full rebuild!
  32. 2001 SLS Ignition Coil Packs
  33. Possible Head Gasket 2001 Deville
  34. 01 Overheating; suspect coolant flow Please advise.
  35. 2005 Deville Head Gasket
  36. Northstar thermostat housing leaks, possible overheating
  37. 2009 DTS 100,000 miles - burning oil smell
  38. Northstar timing chain tensioners
  39. 2000 DeVille - high temps, possible head gasket leak
  40. Hello all, I have an intake question
  41. valve roller rockers-2001
  42. Northstar block question
  43. Snakes
  44. Freeze Plugs
  45. Oil filer adapter o rings and oil level tube o ring
  46. LD8 vs LH2/LC3 Exhaust Flange
  47. Another Overheating question
  48. Cleaning Carbon Deposits on pistons/rings ??????
  49. 06 Luceren Northstar V8 overheating and heater core coolant leakage?
  50. P0140 after New Sensor
  51. freeze spray for guide pin removal
  52. Swap question
  53. Swapping a Y for a 9-2001
  54. Engines - 2001 SLS with cracked block
  55. 2000 STS wont start
  56. I cant get the front valve cover off a 1999 Seville Northstar
  57. trouble code P0175
  58. 2000 deville won't start due to gears
  59. 06 SRX N* VVT Part identification
  60. Building a 1996 Northstar base Deville engine
  61. 2005 Northstar Lifters Ticking
  62. Recommended spark plug for 2001 Northstar
  63. Rad Fan Diagnosis - 1997 SLS
  64. Deville cooling fans problem
  65. Best gasket/bolt kit for 1999 Northstar head job
  66. Cadillac Deville Engine swap 95 in a 98
  67. 99 Deville 4.6 Northstar - left intake camshaft replace
  68. 2000 STS with P0300 #4 - misfire - valvetrain damage
  69. 2002 Deville - P 0741 alone, long trip ?
  70. Head Gasket dilemma -- 1999 Deville
  71. 02 deville overheated and now starts rough for about 10-20 seconds
  72. Pros and Cons Of A Northstar
  73. Chevron Techron Usage
  74. 2002 STS Head Gasket repair... and more?
  75. 2000 Deville - Coolant leak from overflow tube
  76. Cassette Bolts
  77. Help, car won't start!
  78. 4T80E Fluid level
  79. Just curious ...
  80. 95 Vin9 transmission
  81. This sounds BAD... 2004 Deville Northstar with ticks and rattles
  82. 1998 STS some oil use, drips of oil every couple days & suspect head gasket
  83. Fuse issues - 1996 SLS injector circuits
  84. Oil leak at head.
  85. 94 Concours with First Generation Northstar
  86. Motor Rebuild Problem
  87. power steering
  88. 1999 Deville - P 0404 but I do not think its the EGR Valve
  89. New to me 08' DTS service question.
  90. 2011 Northstar HG
  91. Need a recommended Northstar rebuilder for purchase of new engine for my 01 deville.
  92. Details regarding the P0741 fix and engine reseal, Seville -99
  93. Guys:How many miles does your N* Motor have, WITHOUT ever doing a HeadGasket repair??
  94. 1996 Engine Swap
  95. 2004 DHS - plugs, coils changed - severe miss is back
  96. drill plate for studs
  97. Putting a NorthStar together in a 96 Deville. Need couple a bolts and some pictures.
  98. priming the oil system
  99. 1996 Deville - coolant leak
  100. Can you identify this bellhousing?
  101. code Y or 9-how do you tell on an '01?
  102. What brand of starter?
  103. Can plug wires deteriorate just from age?
  104. 300,000 mile Northstar
  105. Northstar 4.6 in a 2008 Cheverlot Silverado 1500 LS?
  106. Help Identifying This Throttle Body
  107. prefered oxygen sensor
  108. Antifreeze northstar motor
  109. easy test for blown head gasket
  110. Bank 1 Sensor 1; 96 Deville
  111. Anti-seize on spark plugs?
  112. 2003 STS intermittant P0101
  113. Lower crankcase seal job...
  114. Northstar Mechanics Near Venice, FL
  115. Northstar years - good and bad ?
  116. Is this the original engine in my car
  117. 2000 Deville - possible overheating ??
  118. 1999 deville - new water pump leak
  119. Northstar engine in 2006 Buick Lucerne Issues
  120. Great site for northstars
  121. To dex or not to dex, that is the question
  122. 2001 Deville overheating
  123. HB inserts-2001
  124. Purpose of Valve Reliefs in 1st Gen Motors
  125. Is there a way to look at a N*in a used car & see if the HG bolts have been changed?
  126. Any writeups on 03 DTS 4.6L timing chain replacement?
  127. 1996 Northstar - extended cold cranking periods
  128. 1996 Northstar - CMP location ?
  129. '97 Seville overheating after 2 Miles and after Thermaseal treatment
  130. Northstar lower crankcase torque?
  131. ECM disconnected
  132. 2001 Eldorado - Fix Headgasket or Engine Swap?
  133. Camshaft Position Sensor Replacement
  134. 1993 Allante - engine stalls and bogs. CMP OK
  135. Dune Cruiser...
  136. 1993 Northstar parts needed
  137. E10 and/or Premium fuel
  138. northstar crankshaft main journal size
  139. 1999 DeVille Head Stud, Gasket Repair
  140. Northstar Oil Pump
  141. 1998 Eldorado Knocking when warm
  142. 160000mls service - now engine missfires
  143. Failed Emissions NEED ADVICE!
  144. Headgasket how to prevent that ?
  145. Power steering issue after engine work - 2002 DHS
  146. Classic overheating (99 eldo) pressure relief valve clogged?
  147. timing chain tensioner question
  148. Could this be a busted roller cam follower ?
  149. Dexcool or the green coolant?
  150. 4.6 northstar timing
  151. OIL, 5W30 vs 5W40
  152. Nitrous supporting mods
  153. Transmissions to head brace.
  154. Cylinder Head Dowel Pins???
  155. 2000 DTS used bad Intake manifold
  156. Evap purge valve
  157. 2000 DTS started puilling down engine today
  158. So she put the wrong spark plugs into a 2001 DHS . . .
  159. North Star coolant
  160. NorthStar Performance
  161. 2002 Northstar engine repair
  162. NorthStar Performance - rebuilt rngine info
  163. Northstar transmission interchangeability
  164. What's still good and what's not...
  165. Trying to losing crank pulley bolt and it jumped time cant get the bolt to loosen!!
  166. L37 and LD8 engine interchange question
  167. Guess how many 1993-2003 N* are still on the road, without Head Gasket Failure?
  168. NORTHSTAR Head CASTING #12585774 - engine fit ??
  169. 2001 STS Alternator Not Charging
  170. 2002 STS Cooling Fan Operation
  171. Snapped bolt - serpentine idler, 1994 N*
  172. 1998 Northstar FWD torque converter options
  173. 02 DHS Head gasket job question...
  174. Oil Pan Compatibility
  175. What Should I replace While the engine is out?
  176. Upgraded 1998 DeVille Fuel Injectors
  177. 96 SLS Head Bolts
  178. Motor mounts
  179. complete swap
  180. Motor drags... won't start
  181. Stop engine low oil pressure
  182. Northstar water pump replacement
  183. Right side exhaust manifold removal on 1995 Seville STS
  184. Problem with headbolts on HG repair
  185. 2001 STS Hooked up jumper cables wrong now car wont charge
  186. NP rebuilt engine
  187. 99 STS collapsed lifter?
  188. 2002 Deville remove bumper to remove engine cradle
  189. Northstar Performance - Jake's Studs
  190. Truth about Northstar Engine Failure?
  191. Bank 1, Bank 2 which is which
  192. Changed crankshaft position sensors, have oil leak.
  193. Can STS 2001 Northstar be converted to E85
  194. Setting timing on 96 STS
  195. Northstar headgasket repair parts
  196. Replacing Driver's Side Radiator Fan 1998 DeVille
  197. 2003 SLS -High idle and temperature after cleaning throttle body
  198. New Owner--1999 Deville - P0741
  199. 1997 Eldorado surge tank nipple cracked.
  200. New TPS now Code P085
  201. Vacuum leak
  202. Still Holding On to Bernadette... And don't Want to let go
  203. Oh so soft aluminum
  204. 98 DeVille Overheating, Coolant Leak
  205. 2000 ESC overheating
  206. Head Gasket Blown?
  207. LH2 heads on LD8 ?
  208. RE: Where is Coolant Purge Line?
  209. Engine cover gasket.
  210. 2000 northstar timing
  211. head gasket with engine in car still 99 sts
  212. Question about Northstar engines
  213. 2003 SLS Headgasket?
  214. Damaged block. Am I screwed?
  215. Blown Head Gasket ? - 1998 Northstar
  216. ECM Protocol for 2005 SRX with 4.6L LH2
  217. Can I drill the head studs holes deeper?
  218. HG in Fredericksburg, Virginia
  219. High Mile N* motors somehow cause catalytic converter failures? Need real experience
  220. 1998 DeVille/Northstar engine problems and head gasket fix
  221. P0300 code - Idle is perfectly smooth until engine warms up to 170 degrees
  222. Steel Seal? Yes or No
  223. 2003 Deville Headgasket & Cyl head time?
  224. Weird clicking noise on passenger side of motor by belt.
  225. Is it always the threads?
  226. 1998 Deville overheat ?
  227. '99 Plastic Fuel Rail
  228. Spark Plug & Wire Install - 1998 Deville misfires
  229. Performance camshafts for 2009 "STS" ?
  230. How To: 1998 DeVille Accessory Belt Tensioner Interference!
  231. 95 eldorado engine interchangeability
  232. transmission side pan removal
  233. 1998 DeVille: Reset Codes from Digital Panel
  234. 2004 Deville - ignition coil checks
  235. Overheating Issues 1997 STS
  236. Can a Bad Catalytic Converter Cause Overheating Problems?
  237. I'm back, after CCC studs installed two years ago a blown HG and loose stud WTH?
  238. Headgasket Repair Shops - Maryland
  239. 00+ Northstar Intake manifold...why so filthy inside?
  240. Super Star Studs...Anyone Ever Use Them?
  241. 1998 Deville Northstar head bolt hole repair ?
  242. Need info - Northstar engine rebuild/replace ?
  243. Head Gaskets?
  244. 1997 SLS Head Gasket Repair
  245. 2000 Deville Overheating
  246. Overheating problem - 1999 Deville
  247. 4T80E Transmission swapability
  248. 2002 Deville 220,000 miles. Want to change fuel pump.
  249. Eldorado strip times - Tuning thread
  250. 2001 DTS low oil pressure.