: Northstar Engines and System Technical Discussion



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