: Northstar Engines and System Technical Discussion



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  1. Seville 99, ignition cables routing
  2. Oil pressure sensor too close to motor mount
  3. Northstar flat tappet cam followers - which years?
  4. New member question 1997 Deville head gasket ?
  5. 2005 4.6l Y vin into a 2006 DTS
  6. 2005 sts northstar engine
  7. 4.6 Northstar - top overhaul
  8. 4T80E Question...
  9. 98 deville p0741 p0171 p0174
  10. Problem with fit of oil pickup tube into new oil distribution plate.
  11. Suggestions for piston ring de-carb while heads are off during HG replacement.
  12. Main bearing bolt torquing. dry or oiled?
  13. I Need help were these brackets go
  14. Intermittent "battery not charging" red indicator
  15. Head Deck Surface - Second Opinion Needed
  16. LH2 on LS mounts with a T56?
  17. 1995 Eldorado pops on acceleration, no idea what it is.
  18. no water moving 1999 seville
  19. Main bolt seats - necessity to re-thread
  20. Headgaskets and VCC to TCC
  21. 2002 DHS blown head gasket removal without removing engine
  22. Blown Head Gasket Parts Advice - 2001 DTS
  23. Head gasket failure - how it become
  24. 05 Deville Timing chain guide failure and gray oil
  25. 1999 Northstar head gasket sets - price on ebay
  26. 1999 Northstar head bolt thread repair questions
  27. 2004 SRX Idler pulley ripped out of block
  28. 1995 Eldorado hesitates a little on acceleration between 1500-2000 rpm
  29. Re-ring kit - what size to choose?
  30. Oil manifold plate unorthodox treatment
  31. Overhauling - bolts?
  32. Crack or casting imperfection?
  33. Timing Chain Guide\Tensioner "Toppings" - how to call and where to buy?
  34. 1999 Seville overheats when going up long grades
  35. Seville 2003, Code P0300 right after changed upper radiator hose
  36. FPR Vacuum Hose ?
  37. Coolant system message
  38. 1997 Northstar Eldorado - possible blown head gasket
  39. Northstar timing
  40. A poser - differential diagnosis: blown head gasket or bad coil pack (or injector)
  41. Doing head gaskets in frame
  42. 2002 Northstar hearse overheat?
  43. Losing coolant, rough running @ start-up
  44. Considering a HG fix + a possible budget rebuild
  45. Cylinder #8 Misfire, changed plugs & coil, now what?
  46. Northstar FWD or RWD owner? You NEED to study this!
  47. Northstar engine and head gasket issues
  48. Preventative water pump replacement ??
  49. 2005 Deville - Remove and Install Fuel Injectors
  50. How to evaluate a northstar before buying?
  51. how do you remove steering coupling from steering gear and ABS modulator 99 Eldorado
  52. What company make a good head gasket for the northstar engine
  53. 2002 DTS - A/C compressor clutch cycle?
  54. Which HG repair is the best GM time sert,NS300L Insert or SureGrip Head Stud Kit
  55. need information how to best and easy way to remove a engine for a 99 Eldorado
  56. 1995 4t80e output shaft came out with axle shaft?
  57. 1996 El Dorado engine knocking?
  58. My 2001 Deville's Engine is Overheating
  59. Did Cadillac fix the head bolt problem in 2005 northstar ?
  60. 4.6 Swap into 68 Deville
  61. 04 Deville - 1,3,5,7 misfiring
  62. 1996 - 2003 Northstar head bolt torque specs
  63. 2000 STS head bolt torque specs question and head photos
  64. 95 STS Northstar idles up and down pretty much all the time
  65. rear ignition cassette removal-2001
  66. Aurora L47 V8
  67. 4T80E Shift Kits?
  68. Northstar pre oil change cleaners / additives
  69. 4T80E Transmission will not engage (in any gear front or back)
  70. 2000 Eldorado Engine Noise
  71. Keeping 1st gear with T/C off on the 96-99 Northstars - Tuning update
  72. water pump removal
  73. Rear main seal question...
  74. NorthStar Top End Teardown in Car - Cylinder Head Insert Repair
  75. 1997 Northstar insert and timing help
  76. Check Engine Light won't go off - 2003 DTS
  77. Cylinder Compression
  78. P0300 - Misfires on cyls 1 and 2
  79. What's this gasket?
  80. torx size for studs studs
  81. 2000 Deville Now Burning A Quart Every 300 Miles Now What? 115k
  82. Odd possible HG failure - 2003 STS
  83. Check Coolant Level
  84. 1997 Deville Possible topend, maybe full rebuild!
  85. 2001 SLS Ignition Coil Packs
  86. Possible Head Gasket 2001 Deville
  87. 01 Overheating; suspect coolant flow Please advise.
  88. 2005 Deville Head Gasket
  89. Northstar thermostat housing leaks, possible overheating
  90. 2009 DTS 100,000 miles - burning oil smell
  91. Northstar timing chain tensioners
  92. 2000 DeVille - high temps, possible head gasket leak
  93. Hello all, I have an intake question
  94. valve roller rockers-2001
  95. Northstar block question
  96. Snakes
  97. Freeze Plugs
  98. Oil filer adapter o rings and oil level tube o ring
  99. LD8 vs LH2/LC3 Exhaust Flange
  100. Another Overheating question
  101. Cleaning Carbon Deposits on pistons/rings ??????
  102. 06 Luceren Northstar V8 overheating and heater core coolant leakage?
  103. P0140 after New Sensor
  104. freeze spray for guide pin removal
  105. Swap question
  106. Swapping a Y for a 9-2001
  107. Engines - 2001 SLS with cracked block
  108. 2000 STS wont start
  109. I cant get the front valve cover off a 1999 Seville Northstar
  110. trouble code P0175
  111. 2000 deville won't start due to gears
  112. 06 SRX N* VVT Part identification
  113. Building a 1996 Northstar base Deville engine
  114. 2005 Northstar Lifters Ticking
  115. Recommended spark plug for 2001 Northstar
  116. Rad Fan Diagnosis - 1997 SLS
  117. Deville cooling fans problem
  118. Best gasket/bolt kit for 1999 Northstar head job
  119. Cadillac Deville Engine swap 95 in a 98
  120. 99 Deville 4.6 Northstar - left intake camshaft replace
  121. 2000 STS with P0300 #4 - misfire - valvetrain damage
  122. 2002 Deville - P 0741 alone, long trip ?
  123. Head Gasket dilemma -- 1999 Deville
  124. 02 deville overheated and now starts rough for about 10-20 seconds
  125. Pros and Cons Of A Northstar
  126. Chevron Techron Usage
  127. 2002 STS Head Gasket repair... and more?
  128. 2000 Deville - Coolant leak from overflow tube
  129. Cassette Bolts
  130. Help, car won't start!
  131. 4T80E Fluid level
  132. Just curious ...
  133. 95 Vin9 transmission
  134. This sounds BAD... 2004 Deville Northstar with ticks and rattles
  135. 1998 STS some oil use, drips of oil every couple days & suspect head gasket
  136. Fuse issues - 1996 SLS injector circuits
  137. Oil leak at head.
  138. 94 Concours with First Generation Northstar
  139. Motor Rebuild Problem
  140. power steering
  141. 1999 Deville - P 0404 but I do not think its the EGR Valve
  142. New to me 08' DTS service question.
  143. 2011 Northstar HG
  144. Need a recommended Northstar rebuilder for purchase of new engine for my 01 deville.
  145. Details regarding the P0741 fix and engine reseal, Seville -99
  146. Guys:How many miles does your N* Motor have, WITHOUT ever doing a HeadGasket repair??
  147. 1996 Engine Swap
  148. 2004 DHS - plugs, coils changed - severe miss is back
  149. drill plate for studs
  150. Putting a NorthStar together in a 96 Deville. Need couple a bolts and some pictures.
  151. priming the oil system
  152. 1996 Deville - coolant leak
  153. Can you identify this bellhousing?
  154. code Y or 9-how do you tell on an '01?
  155. What brand of starter?
  156. Can plug wires deteriorate just from age?
  157. 300,000 mile Northstar
  158. Northstar 4.6 in a 2008 Cheverlot Silverado 1500 LS?
  159. Help Identifying This Throttle Body
  160. prefered oxygen sensor
  161. Antifreeze northstar motor
  162. easy test for blown head gasket
  163. Bank 1 Sensor 1; 96 Deville
  164. Anti-seize on spark plugs?
  165. 2003 STS intermittant P0101
  166. Lower crankcase seal job...
  167. Northstar Mechanics Near Venice, FL
  168. Northstar years - good and bad ?
  169. Is this the original engine in my car
  170. 2000 Deville - possible overheating ??
  171. 1999 deville - new water pump leak
  172. Northstar engine in 2006 Buick Lucerne Issues
  173. Great site for northstars
  174. To dex or not to dex, that is the question
  175. 2001 Deville overheating
  176. HB inserts-2001
  177. Purpose of Valve Reliefs in 1st Gen Motors
  178. Is there a way to look at a N*in a used car & see if the HG bolts have been changed?
  179. Any writeups on 03 DTS 4.6L timing chain replacement?
  180. 1996 Northstar - extended cold cranking periods
  181. 1996 Northstar - CMP location ?
  182. '97 Seville overheating after 2 Miles and after Thermaseal treatment
  183. Northstar lower crankcase torque?
  184. ECM disconnected
  185. 2001 Eldorado - Fix Headgasket or Engine Swap?
  186. Camshaft Position Sensor Replacement
  187. 1993 Allante - engine stalls and bogs. CMP OK
  188. Dune Cruiser...
  189. 1993 Northstar parts needed
  190. E10 and/or Premium fuel
  191. northstar crankshaft main journal size
  192. 1999 DeVille Head Stud, Gasket Repair
  193. Northstar Oil Pump
  194. 1998 Eldorado Knocking when warm
  195. 160000mls service - now engine missfires
  196. Failed Emissions NEED ADVICE!
  197. Headgasket how to prevent that ?
  198. Power steering issue after engine work - 2002 DHS
  199. Classic overheating (99 eldo) pressure relief valve clogged?
  200. timing chain tensioner question
  201. Could this be a busted roller cam follower ?
  202. Dexcool or the green coolant?
  203. 4.6 northstar timing
  204. OIL, 5W30 vs 5W40
  205. Nitrous supporting mods
  206. Transmissions to head brace.
  207. Cylinder Head Dowel Pins???
  208. 2000 DTS used bad Intake manifold
  209. Evap purge valve
  210. 2000 DTS started puilling down engine today
  211. So she put the wrong spark plugs into a 2001 DHS . . .
  212. North Star coolant
  213. NorthStar Performance
  214. 2002 Northstar engine repair
  215. NorthStar Performance - rebuilt rngine info
  216. Northstar transmission interchangeability
  217. What's still good and what's not...
  218. Trying to losing crank pulley bolt and it jumped time cant get the bolt to loosen!!
  219. L37 and LD8 engine interchange question
  220. Guess how many 1993-2003 N* are still on the road, without Head Gasket Failure?
  221. NORTHSTAR Head CASTING #12585774 - engine fit ??
  222. 2001 STS Alternator Not Charging
  223. 2002 STS Cooling Fan Operation
  224. Snapped bolt - serpentine idler, 1994 N*
  225. 1998 Northstar FWD torque converter options
  226. 02 DHS Head gasket job question...
  227. Oil Pan Compatibility
  228. What Should I replace While the engine is out?
  229. Upgraded 1998 DeVille Fuel Injectors
  230. 96 SLS Head Bolts
  231. Motor mounts
  232. complete swap
  233. Motor drags... won't start
  234. Stop engine low oil pressure
  235. Northstar water pump replacement
  236. Right side exhaust manifold removal on 1995 Seville STS
  237. Problem with headbolts on HG repair
  238. 2001 STS Hooked up jumper cables wrong now car wont charge
  239. NP rebuilt engine
  240. 99 STS collapsed lifter?
  241. 2002 Deville remove bumper to remove engine cradle
  242. Northstar Performance - Jake's Studs
  243. Truth about Northstar Engine Failure?
  244. Bank 1, Bank 2 which is which
  245. Changed crankshaft position sensors, have oil leak.
  246. Can STS 2001 Northstar be converted to E85
  247. Setting timing on 96 STS
  248. Northstar headgasket repair parts
  249. Replacing Driver's Side Radiator Fan 1998 DeVille
  250. 2003 SLS -High idle and temperature after cleaning throttle body