: Northstar Engines and System Technical Discussion



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