: Northstar Engines and System Technical Discussion



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  1. tap for time serts
  2. Just bought a 98 Deville, was overheating, am I paranoid?
  3. 208 at 40+ 212 at <40
  4. low oil pressure
  5. Batman's Northstar
  6. Another Wont crank issue
  7. Woohoo...Head gasket repair is done
  8. 1998 Deville acceleration slip
  9. Steering joint bolt
  10. My bone stock '98 STS pulled a 14.95 in the 1/4
  11. Weird Noise
  12. Heartland High Mileage Oil Changer Review
  13. 95 sls n* solenoid clicking
  14. Interesting find
  15. Valve cover bolts???
  16. Timing mark clarification
  17. Engine in the car repair... how many gaskets?
  18. Front hydraulic motor mount
  19. I can't get the CV joint to separate from the Trans
  20. 1993 Caddillac Eldorado - Timing Chain Issue
  21. Stud Kit Success!!
  22. Ways to increase performance?
  23. Radiator leaks and engine runs rough, no codes
  24. Ethanol Blends
  25. 98 Eldorado Starting Problems
  26. Problems removing head dowels
  27. Another visit to the track
  28. 95 vs 99 Northstar
  29. Tuning up the engine.
  30. Head Gasket Repair At Your Location!
  31. Head Gasket Paranoia
  32. catalyst converter replaced
  33. 93 STS Lots of smoke after fillup
  34. Exact oil filter wrench for 1996 Seville SLS
  35. new northstar
  36. Super Noob needs help overheating
  37. Nitrous Help: 01 DTS
  38. Head gasket removal, best practices
  39. 01 deville o2's locations?
  40. Head stud kit
  41. Documenting a swap: N* 4.6 / 97 STS
  42. 2005 DTS Twin Turbo project??
  43. No pcm data
  44. No pcm data?
  45. WIll a 98 vin 9 motor go into a 94 STS
  46. another newbie HG question
  47. NEW - 2002 Head Gasket Failure - Best Fix...
  48. Failed Smog Emissions Northstar
  49. What could it be?
  50. Exchange fluids how often?
  51. Tuning thread. Disappointed, but I understand.
  52. looking to buy a Caddy
  53. AC Delco platinum plug gap settings for N*
  54. how do i get my car to northstar preformance, uh cheaply?
  55. Engine 'misses' at stoplights
  56. where to get my head gasket repaired?
  57. Engine Shaking
  58. 4.6 Prevention and maintenance for longer life IE head gaskets.
  59. How to properly switch from red to green in a 2000 STS
  60. Water Pump Issue
  61. Lucas Oil Stabilizer
  62. Rough idle and low speed chug
  63. barS headgasket repair, has anyone tried it?
  64. Secondary Air Injection Check Valve... Bent?
  65. 2000 STS motor mount help?
  66. Oil pressure dummy light flickers...
  67. Head Bolts...
  68. Slight stumble, no codes
  69. 97 Deville wont start in the morning
  70. Stud Kit Help
  71. A kitten caused my Serpentine Belt to come off
  72. Check Coolant Level
  73. Cleaning Heads and Block
  74. Over Heating... HELP!!!
  75. 2001 deville rough idle
  76. engine grounds
  77. manifold blowoff
  78. sealant for blown heads?
  79. 1994 STS Overheating (I think)...
  80. Block Identification Numbers
  81. Snapping noise when coming to a stop..Answered Finally!!!
  82. Overheating Eldorado Help
  83. need some help
  84. 05' STS. Little help with P0102 please
  85. 2000 DTS P0300 code
  86. Head gasket repair
  87. P041 1994 deville concours
  88. Quick Oil Question
  89. rough idle, no codes, rough start
  90. coolant leak
  91. STS Radiator Hose Replacement
  92. 95 Eldorado ETC - Cooling system
  93. power steering line: o-ring?
  94. broken bolt in oil pan
  95. Water pump & crossover gasket - $$$$
  96. Help Me Please
  97. Rad Cap PSI was wrong
  98. Coolant Leak. Where's it coming from?
  99. Water pump Purge line?
  100. 5w30 or 0w30
  101. Destroying a N* Engine
  102. N* engine removal - newbee
  103. 02 DHS overheating
  104. TCC Stuck Off
  105. No clue what to do. Northstar blues
  106. problem with map sensors
  107. 2001 caddy sts seville tranny
  108. What is going on with the car?
  109. Spark Plug Wires
  110. "Hush" or "Gasp" Before Expected Throttle Response
  111. my 93 ETC Eldorado N* has a question for you guys
  112. Which spark plugs to buy?
  113. Thoughts on Dex-Cool and Head Gaskets
  114. 2001 cadillac deville small hesitations
  115. Normal Operating Temperature?
  116. Intermittent starting issue 97Seville SLS
  117. Trouble finding exhaust leak 99 Deville Y motor
  118. Is 235 too hot for a N*star on hilly roads?
  119. Spark Plugs ACDELCO or somthign els ?
  120. Good mechanics to fix head gasket in Oceanside, California area
  121. rough idle, only when in gear and brake on
  122. The first head gasket failure - 1 out of around 90 or so
  123. Tranny problems?
  124. how to install serpentine belt on 98 concours
  125. engine swap
  126. Why high fuel pressure?
  127. 1997 Northstar low speed hesitation and noise
  128. 2001 DeVille DHS / North Star motor losing power
  129. Air-Dam / Belly Splash Guard importance on cooling your N*
  130. Make Your Own Damn Motor Mount
  131. cooling fans inop p01660
  132. Hard shifting 1-2 Help!
  133. Fabricated Torque Strut for the 2000+ Northstar
  134. Horrible Engine Bucking 93 N* Allante
  135. 1998 Seville STS Performance Engine Build - STAGE I
  136. My pulley melted
  137. 01 Deville issues, no codes, no check engine light
  138. '96 Deville Coolant Change
  139. Overheating
  140. White smoke after changing starter (by removing intake manifold)
  141. No current codes but...
  142. N* Powered Camaro
  143. Strange coolant/heat issue 99 STS
  144. 1998 STS engine full of mystery sludge?!
  145. Rough idle-stumble on accel
  146. 95 Eldorado 4.6L Engine stalls
  147. Oil in intake manifold 4.6 1993
  148. 98 Deville Concours Preformance Exhaust???
  149. Engine year compatibility
  150. Sucessful Northstar head gasket repair in a bottle
  151. PCM 09354896 code DCHJ
  152. 1997 4.6 eldorado up hill over heats
  153. fuel injector ohms
  154. 93 sts fuel rail removal tools
  155. Air ride compressor
  156. Overheating??
  157. Codes P0122 and P1122...
  158. Motor mount replaced!! WTF!!!!!
  159. 1996 Seville STS O2 Sensor REMOVAL. CAN"T GET TO IT
  160. 96 Seville where's the 02 Oxygen Sensor Location?? PLEASE HELP WONT PASS EMISSIONS!!!
  161. Long road trips good for the Northstar?
  162. headgaskets a 2nd time?
  163. 97 eldorado w/180,000 miles, should i upgrade to a preformance coil?
  164. 94 eldorado 4.6 - no codes - stumbling/chugging - about to give up
  165. Car not turning over
  166. Codes 340 and 1016 + Fixed A.I.R. with new coil cartridge?
  167. Transmission issue
  168. spark plugs
  169. Yearly engine oil changes really necessary?
  170. Overheating problem
  171. maybe you all know more
  172. What Oil For Northstar Cams and Flat Tappets?
  173. 93 seville sts fuel rail
  174. rear main seal
  175. 93-99 Camshaft picture needed
  176. Seville 03 shaking problems after tune-up.
  177. is it the head gasket again?
  178. Problems with starting the engine
  179. Adding an Electric water Pump 95 Northstar
  180. 1995 northstar for sale *LOCKED*
  181. After WOT Car smells strong of sulfur , rotten eggs
  182. Dexool Questions
  183. 2002 caddy deville
  184. Limp. Mode help
  185. Lifter starting to tap and needs replacing,
  186. Reg oil or Synthetic oil
  187. Coolant Shooting Out
  188. Random light miss during constant hwy cruising
  189. Which PCM??
  190. Fuel Injector O-Rings- Where go?
  191. air in cooling system
  192. Best oil and spark plugs for the northstar 4.6L
  193. Enginge doesn't crank
  194. Help!! Engine idling with hiccups
  195. Tach
  196. the day has come: headgasket
  197. '99 Seville STS
  198. What are the differences between 99> and 00< motors?
  199. Why do these motors break rods?
  200. pretty betty deville
  201. how reliable is northstars limp mode
  202. 1999 deville almost overheating
  203. 3.71 ever better with smaller wheels?
  204. Refrigerant pressure
  205. Minor Coolant Leak
  206. 93 sts misfires, stalls, very rough idle, looking for cause
  207. Any thoughts? Code P1350 p1375
  208. Injector spec for a Y2000 N*
  209. oil cooler
  210. TPS issue: Codes P0122, P1122. Help!
  211. Need Help Installing Air Filter ?
  212. 2002 Deville coolant leak
  213. Blew the head gaskets replacing the motor
  214. 1997 deville stalling at idle
  215. bad headgasket
  216. N* running Hot, Real Hot
  217. 99 deville oil pump
  218. 2001 Northstar AIR Valve
  219. Hydraulic valve-lash adjustor evaluation?
  220. 99 deville - RFA U1000 Help
  221. 91 GMC Sierra, with a Northstar?
  222. 96 96 Northstar Noise and Oil light issue With Video
  223. Speedomoter Reads wrong
  224. 2001 Deville Falls Dead
  225. 98 sls overheating
  226. EVAP Purge Solenoid
  227. P0171, P0174 After replaced Plenum
  228. 97 deville overheating??
  229. Batteries, voltage, power, and Optima
  230. Intake Manifold Removal Snag
  231. Smoke
  232. Come for a vacation while your HG's are replaced
  233. Exhaust manifold swap?
  234. Temp Indicator Question!
  235. Does Anyone Have Any Ideas???
  236. 2001 deville misfire
  237. '98 heads and cams on a 2000 block
  238. Fuel Rail / Fuel Injector Removal
  239. No Spark
  240. Puffs of smoke while revving in park
  241. Warping the Heads???
  242. A/c Discharge Hose
  243. Northstar Valve seals?
  244. Main studs?
  245. Notice of price increase on HG replacement
  246. Mystery Vacuum Hose
  247. Bad Thermostats or blown Head Gasket??? Help
  248. timeserts
  249. Northstar Engine belt
  250. Question about Time Serts?