: Northstar Engines and System Technical Discussion



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  1. What color are stock gaskets?
  2. Dumb head gasket question
  3. Resetting Timing after Head Gasket job.
  4. Cadillac Engineers please help us!
  5. how do i change my idle
  6. head gasket help!!!!!!
  7. Transmission cooling
  8. Idle at 3000 RPM HELP!!!
  9. added power?
  10. northstar crank sensors
  11. 2000 DTS plugs and hoses - tough job, I think
  12. FPR acting up
  13. 98+ STS brake upgrade?
  14. Spark plugs
  15. Email conversation with HEAL-A-SEAL
  16. O2 Sensors
  17. 01 SLS w/ Cracked Block - Need Cincy Area Mechanic
  18. 06 DTS crank seal leaking
  19. 4t80e side cover drain
  20. '98 STS stumbles and misses (NO CEL)
  21. MAP sensor keeps going bad - 94 N*
  22. 2004 dhs starting problem
  23. Attention All Northstar Technicians- New Northstar Drilling / Tapping Machine
  24. headgasket being repaired
  25. High mileage oils
  26. P0420 code
  27. Wot?
  28. You'll never guess what I broke today
  29. 95 STS fluctuating rpm and slight bogging while driving
  30. 1993 Cadillac sts 4.6 idle fluctuating
  31. SLS engine and trannie in a STS?
  32. Air conditioning compressor clutch bearing
  33. Manifold Blowoff Leaking - parking break stuck
  34. 110,000 miles, what else should be done along with head gaskets?
  35. "Tic Tic Tic" sound on 02 SLS
  36. Flashing SES/P0300
  37. Working on mama's Caddy. Need help with O2 Sensor
  38. Head Gasket?
  39. Investors needed. Big time.
  40. thermostat housing gasket? 99 sts
  41. New England area Northstar mechanics? (Head Gaskets)
  42. 6 oil leaks; gaskets replaced now intake plenum boot replaced..
  43. That's a lot of smoke! (exhaust)
  44. Mobile 1 Clean High Mileage
  45. Chocolate Milk in the oilpan
  46. Heater Core Inlet Connector O-Ring Leak
  47. Breakthrough for anyone with bad exhaust cams
  48. 96 Aurora 4.0
  49. Idle Too Low P0506 New Throttle Body?
  50. Northstar mechanic on Long Island?
  51. 4t80E shift solenoid part #
  52. B0149
  53. Code P119
  54. HeadGasket Repaired - cost $1500 - but more problems?...
  55. 95 Eldo headgaskets?
  56. Only overheats when the AC or the heat is on....
  57. 06+ STS Northstar ECM repin to 07-08, new carrer and trans install
  58. Aftermarket Temp. Gauge
  59. Coolant Supply Line
  60. Idles rough after being started in the morning
  61. Best way to clean the engine bay?
  62. 2001 Cadillac DTS Can't get up to speed, power loss, studdering, See Video
  63. Tricky Coolant Leak
  64. Coming back home
  65. 2000 DHS exhaust smoking and running poor
  66. 4 Engine Questions
  67. Is this guy being honest with me? video of a SEIZED ENGINE!!!
  68. Any thoughts on this...
  69. tap for time serts
  70. Just bought a 98 Deville, was overheating, am I paranoid?
  71. 208 at 40+ 212 at <40
  72. low oil pressure
  73. Batman's Northstar
  74. Another Wont crank issue
  75. Woohoo...Head gasket repair is done
  76. 1998 Deville acceleration slip
  77. Steering joint bolt
  78. My bone stock '98 STS pulled a 14.95 in the 1/4
  79. Weird Noise
  80. Heartland High Mileage Oil Changer Review
  81. 95 sls n* solenoid clicking
  82. Interesting find
  83. Valve cover bolts???
  84. Timing mark clarification
  85. Engine in the car repair... how many gaskets?
  86. Front hydraulic motor mount
  87. I can't get the CV joint to separate from the Trans
  88. 1993 Caddillac Eldorado - Timing Chain Issue
  89. Stud Kit Success!!
  90. Ways to increase performance?
  91. Radiator leaks and engine runs rough, no codes
  92. Ethanol Blends
  93. 98 Eldorado Starting Problems
  94. Problems removing head dowels
  95. Another visit to the track
  96. 95 vs 99 Northstar
  97. Tuning up the engine.
  98. Head Gasket Repair At Your Location!
  99. Head Gasket Paranoia
  100. catalyst converter replaced
  101. 93 STS Lots of smoke after fillup
  102. Exact oil filter wrench for 1996 Seville SLS
  103. new northstar
  104. Super Noob needs help overheating
  105. Nitrous Help: 01 DTS
  106. Head gasket removal, best practices
  107. 01 deville o2's locations?
  108. Head stud kit
  109. Documenting a swap: N* 4.6 / 97 STS
  110. 2005 DTS Twin Turbo project??
  111. No pcm data
  112. No pcm data?
  113. WIll a 98 vin 9 motor go into a 94 STS
  114. another newbie HG question
  115. NEW - 2002 Head Gasket Failure - Best Fix...
  116. Failed Smog Emissions Northstar
  117. What could it be?
  118. Exchange fluids how often?
  119. Tuning thread. Disappointed, but I understand.
  120. looking to buy a Caddy
  121. AC Delco platinum plug gap settings for N*
  122. how do i get my car to northstar preformance, uh cheaply?
  123. Engine 'misses' at stoplights
  124. where to get my head gasket repaired?
  125. Engine Shaking
  126. 4.6 Prevention and maintenance for longer life IE head gaskets.
  127. How to properly switch from red to green in a 2000 STS
  128. Water Pump Issue
  129. Lucas Oil Stabilizer
  130. Rough idle and low speed chug
  131. barS headgasket repair, has anyone tried it?
  132. Secondary Air Injection Check Valve... Bent?
  133. 2000 STS motor mount help?
  134. Oil pressure dummy light flickers...
  135. Head Bolts...
  136. Slight stumble, no codes
  137. 97 Deville wont start in the morning
  138. Stud Kit Help
  139. A kitten caused my Serpentine Belt to come off
  140. Check Coolant Level
  141. Cleaning Heads and Block
  142. Over Heating... HELP!!!
  143. 2001 deville rough idle
  144. engine grounds
  145. manifold blowoff
  146. sealant for blown heads?
  147. 1994 STS Overheating (I think)...
  148. Block Identification Numbers
  149. Snapping noise when coming to a stop..Answered Finally!!!
  150. Overheating Eldorado Help
  151. need some help
  152. 05' STS. Little help with P0102 please
  153. 2000 DTS P0300 code
  154. Head gasket repair
  155. P041 1994 deville concours
  156. Quick Oil Question
  157. rough idle, no codes, rough start
  158. coolant leak
  159. STS Radiator Hose Replacement
  160. 95 Eldorado ETC - Cooling system
  161. power steering line: o-ring?
  162. broken bolt in oil pan
  163. Water pump & crossover gasket - $$$$
  164. Help Me Please
  165. Rad Cap PSI was wrong
  166. Coolant Leak. Where's it coming from?
  167. Water pump Purge line?
  168. 5w30 or 0w30
  169. Destroying a N* Engine
  170. N* engine removal - newbee
  171. 02 DHS overheating
  172. TCC Stuck Off
  173. No clue what to do. Northstar blues
  174. problem with map sensors
  175. 2001 caddy sts seville tranny
  176. What is going on with the car?
  177. Spark Plug Wires
  178. "Hush" or "Gasp" Before Expected Throttle Response
  179. my 93 ETC Eldorado N* has a question for you guys
  180. Which spark plugs to buy?
  181. Thoughts on Dex-Cool and Head Gaskets
  182. 2001 cadillac deville small hesitations
  183. Normal Operating Temperature?
  184. Intermittent starting issue 97Seville SLS
  185. Trouble finding exhaust leak 99 Deville Y motor
  186. Is 235 too hot for a N*star on hilly roads?
  187. Spark Plugs ACDELCO or somthign els ?
  188. Good mechanics to fix head gasket in Oceanside, California area
  189. rough idle, only when in gear and brake on
  190. The first head gasket failure - 1 out of around 90 or so
  191. Tranny problems?
  192. how to install serpentine belt on 98 concours
  193. engine swap
  194. Why high fuel pressure?
  195. 1997 Northstar low speed hesitation and noise
  196. 2001 DeVille DHS / North Star motor losing power
  197. Air-Dam / Belly Splash Guard importance on cooling your N*
  198. Make Your Own Damn Motor Mount
  199. cooling fans inop p01660
  200. Hard shifting 1-2 Help!
  201. Fabricated Torque Strut for the 2000+ Northstar
  202. Horrible Engine Bucking 93 N* Allante
  203. 1998 Seville STS Performance Engine Build - STAGE I
  204. My pulley melted
  205. 01 Deville issues, no codes, no check engine light
  206. '96 Deville Coolant Change
  207. Overheating
  208. White smoke after changing starter (by removing intake manifold)
  209. No current codes but...
  210. N* Powered Camaro
  211. Strange coolant/heat issue 99 STS
  212. 1998 STS engine full of mystery sludge?!
  213. Rough idle-stumble on accel
  214. 95 Eldorado 4.6L Engine stalls
  215. Oil in intake manifold 4.6 1993
  216. 98 Deville Concours Preformance Exhaust???
  217. Engine year compatibility
  218. Sucessful Northstar head gasket repair in a bottle
  219. PCM 09354896 code DCHJ
  220. 1997 4.6 eldorado up hill over heats
  221. fuel injector ohms
  222. 93 sts fuel rail removal tools
  223. Air ride compressor
  224. Overheating??
  225. Codes P0122 and P1122...
  226. Motor mount replaced!! WTF!!!!!
  227. 1996 Seville STS O2 Sensor REMOVAL. CAN"T GET TO IT
  228. 96 Seville where's the 02 Oxygen Sensor Location?? PLEASE HELP WONT PASS EMISSIONS!!!
  229. Long road trips good for the Northstar?
  230. headgaskets a 2nd time?
  231. 97 eldorado w/180,000 miles, should i upgrade to a preformance coil?
  232. 94 eldorado 4.6 - no codes - stumbling/chugging - about to give up
  233. Car not turning over
  234. Codes 340 and 1016 + Fixed A.I.R. with new coil cartridge?
  235. Transmission issue
  236. spark plugs
  237. Yearly engine oil changes really necessary?
  238. Overheating problem
  239. maybe you all know more
  240. What Oil For Northstar Cams and Flat Tappets?
  241. 93 seville sts fuel rail
  242. rear main seal
  243. 93-99 Camshaft picture needed
  244. Seville 03 shaking problems after tune-up.
  245. is it the head gasket again?
  246. Problems with starting the engine
  247. Adding an Electric water Pump 95 Northstar
  248. 1995 northstar for sale *LOCKED*
  249. After WOT Car smells strong of sulfur , rotten eggs
  250. Dexool Questions