: Northstar Engines and System Technical Discussion



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  1. Your Opinion
  2. Fixable or not?
  3. Why NOT to use time serts -
  4. Rear main seal & case half seal - '98 Deville
  5. EVAP switch, purge solenoid, i butchered it
  6. Northstar Performance warranty-good
  7. Misfire 1998 STS
  8. Randomly Running Extremely Rich
  9. Is there a tuner for a 2001 Deville?
  10. I need help!!!
  11. pull tranny, fix half case leak
  12. Slow start and stalling
  13. Who wants/needs a brand new Supercharged Northstar / RWD Trans?
  14. Northstar powered trike
  15. torque angle meter?
  16. pulley decides to whine
  17. Misfire on cylinder 6
  18. TCC Stuck Off (Code P0741) Still on after Solenoid Changeout
  19. Still making engine noise
  20. CHRFAB cams installed - 98 STS - the results are in
  21. Race Caddy losing coolant and making noise
  22. northstar in a camaro!
  23. timming in a 95 sts
  24. To hone? or not to hone
  25. Pulleys... A good source?
  26. timing car with engine in car
  27. 98 N* engine, blue valve cover washers?
  28. motor swap
  29. Today's Racing Question: Studs or Norm's?
  30. Please help guy
  31. Northstar engine swap 2000 put in a 96 Northstar
  32. Power steering leak
  33. 97 sls shifting problem
  34. Deleting govnor on a 2000 eldorado????
  35. Service Engine Soon Codes 1022 & 1122
  36. Coolant Change Help
  37. Head Gasket Repair, now noticed block is cracked
  38. Priming the oil pump
  39. Confused as hell
  40. ATF Question...
  41. cooling fans come on at what temp?
  42. add torque struts(dog bones) to 99 seville
  43. Turbo Charged 99 STS
  44. What tools do you need for a hg/engine pull job
  45. headgasket need used insert kit
  46. Recent Stud Kit Customers - READ THIS PLEASE
  47. HELP My mechanic says I have carboned lifters
  48. What color are stock gaskets?
  49. Dumb head gasket question
  50. Resetting Timing after Head Gasket job.
  51. Cadillac Engineers please help us!
  52. how do i change my idle
  53. head gasket help!!!!!!
  54. Transmission cooling
  55. Idle at 3000 RPM HELP!!!
  56. added power?
  57. northstar crank sensors
  58. 2000 DTS plugs and hoses - tough job, I think
  59. FPR acting up
  60. 98+ STS brake upgrade?
  61. Spark plugs
  62. Email conversation with HEAL-A-SEAL
  63. O2 Sensors
  64. 01 SLS w/ Cracked Block - Need Cincy Area Mechanic
  65. 06 DTS crank seal leaking
  66. 4t80e side cover drain
  67. '98 STS stumbles and misses (NO CEL)
  68. MAP sensor keeps going bad - 94 N*
  69. 2004 dhs starting problem
  70. Attention All Northstar Technicians- New Northstar Drilling / Tapping Machine
  71. headgasket being repaired
  72. High mileage oils
  73. P0420 code
  74. Wot?
  75. You'll never guess what I broke today
  76. 95 STS fluctuating rpm and slight bogging while driving
  77. 1993 Cadillac sts 4.6 idle fluctuating
  78. SLS engine and trannie in a STS?
  79. Air conditioning compressor clutch bearing
  80. Manifold Blowoff Leaking - parking break stuck
  81. 110,000 miles, what else should be done along with head gaskets?
  82. "Tic Tic Tic" sound on 02 SLS
  83. Flashing SES/P0300
  84. Working on mama's Caddy. Need help with O2 Sensor
  85. Head Gasket?
  86. Investors needed. Big time.
  87. thermostat housing gasket? 99 sts
  88. New England area Northstar mechanics? (Head Gaskets)
  89. 6 oil leaks; gaskets replaced now intake plenum boot replaced..
  90. That's a lot of smoke! (exhaust)
  91. Mobile 1 Clean High Mileage
  92. Chocolate Milk in the oilpan
  93. Heater Core Inlet Connector O-Ring Leak
  94. Breakthrough for anyone with bad exhaust cams
  95. 96 Aurora 4.0
  96. Idle Too Low P0506 New Throttle Body?
  97. Northstar mechanic on Long Island?
  98. 4t80E shift solenoid part #
  99. B0149
  100. Code P119
  101. HeadGasket Repaired - cost $1500 - but more problems?...
  102. 95 Eldo headgaskets?
  103. Only overheats when the AC or the heat is on....
  104. 06+ STS Northstar ECM repin to 07-08, new carrer and trans install
  105. Aftermarket Temp. Gauge
  106. Coolant Supply Line
  107. Idles rough after being started in the morning
  108. Best way to clean the engine bay?
  109. 2001 Cadillac DTS Can't get up to speed, power loss, studdering, See Video
  110. Tricky Coolant Leak
  111. Coming back home
  112. 2000 DHS exhaust smoking and running poor
  113. 4 Engine Questions
  114. Is this guy being honest with me? video of a SEIZED ENGINE!!!
  115. Any thoughts on this...
  116. tap for time serts
  117. Just bought a 98 Deville, was overheating, am I paranoid?
  118. 208 at 40+ 212 at <40
  119. low oil pressure
  120. Batman's Northstar
  121. Another Wont crank issue
  122. Woohoo...Head gasket repair is done
  123. 1998 Deville acceleration slip
  124. Steering joint bolt
  125. My bone stock '98 STS pulled a 14.95 in the 1/4
  126. Weird Noise
  127. Heartland High Mileage Oil Changer Review
  128. 95 sls n* solenoid clicking
  129. Interesting find
  130. Valve cover bolts???
  131. Timing mark clarification
  132. Engine in the car repair... how many gaskets?
  133. Front hydraulic motor mount
  134. I can't get the CV joint to separate from the Trans
  135. 1993 Caddillac Eldorado - Timing Chain Issue
  136. Stud Kit Success!!
  137. Ways to increase performance?
  138. Radiator leaks and engine runs rough, no codes
  139. Ethanol Blends
  140. 98 Eldorado Starting Problems
  141. Problems removing head dowels
  142. Another visit to the track
  143. 95 vs 99 Northstar
  144. Tuning up the engine.
  145. Head Gasket Repair At Your Location!
  146. Head Gasket Paranoia
  147. catalyst converter replaced
  148. 93 STS Lots of smoke after fillup
  149. Exact oil filter wrench for 1996 Seville SLS
  150. new northstar
  151. Super Noob needs help overheating
  152. Nitrous Help: 01 DTS
  153. Head gasket removal, best practices
  154. 01 deville o2's locations?
  155. Head stud kit
  156. Documenting a swap: N* 4.6 / 97 STS
  157. 2005 DTS Twin Turbo project??
  158. No pcm data
  159. No pcm data?
  160. WIll a 98 vin 9 motor go into a 94 STS
  161. another newbie HG question
  162. NEW - 2002 Head Gasket Failure - Best Fix...
  163. Failed Smog Emissions Northstar
  164. What could it be?
  165. Exchange fluids how often?
  166. Tuning thread. Disappointed, but I understand.
  167. looking to buy a Caddy
  168. AC Delco platinum plug gap settings for N*
  169. how do i get my car to northstar preformance, uh cheaply?
  170. Engine 'misses' at stoplights
  171. where to get my head gasket repaired?
  172. Engine Shaking
  173. 4.6 Prevention and maintenance for longer life IE head gaskets.
  174. How to properly switch from red to green in a 2000 STS
  175. Water Pump Issue
  176. Lucas Oil Stabilizer
  177. Rough idle and low speed chug
  178. barS headgasket repair, has anyone tried it?
  179. Secondary Air Injection Check Valve... Bent?
  180. 2000 STS motor mount help?
  181. Oil pressure dummy light flickers...
  182. Head Bolts...
  183. Slight stumble, no codes
  184. 97 Deville wont start in the morning
  185. Stud Kit Help
  186. A kitten caused my Serpentine Belt to come off
  187. Check Coolant Level
  188. Cleaning Heads and Block
  189. Over Heating... HELP!!!
  190. 2001 deville rough idle
  191. engine grounds
  192. manifold blowoff
  193. sealant for blown heads?
  194. 1994 STS Overheating (I think)...
  195. Block Identification Numbers
  196. Snapping noise when coming to a stop..Answered Finally!!!
  197. Overheating Eldorado Help
  198. need some help
  199. 05' STS. Little help with P0102 please
  200. 2000 DTS P0300 code
  201. Head gasket repair
  202. P041 1994 deville concours
  203. Quick Oil Question
  204. rough idle, no codes, rough start
  205. coolant leak
  206. STS Radiator Hose Replacement
  207. 95 Eldorado ETC - Cooling system
  208. power steering line: o-ring?
  209. broken bolt in oil pan
  210. Water pump & crossover gasket - $$$$
  211. Help Me Please
  212. Rad Cap PSI was wrong
  213. Coolant Leak. Where's it coming from?
  214. Water pump Purge line?
  215. 5w30 or 0w30
  216. Destroying a N* Engine
  217. N* engine removal - newbee
  218. 02 DHS overheating
  219. TCC Stuck Off
  220. No clue what to do. Northstar blues
  221. problem with map sensors
  222. 2001 caddy sts seville tranny
  223. What is going on with the car?
  224. Spark Plug Wires
  225. "Hush" or "Gasp" Before Expected Throttle Response
  226. my 93 ETC Eldorado N* has a question for you guys
  227. Which spark plugs to buy?
  228. Thoughts on Dex-Cool and Head Gaskets
  229. 2001 cadillac deville small hesitations
  230. Normal Operating Temperature?
  231. Intermittent starting issue 97Seville SLS
  232. Trouble finding exhaust leak 99 Deville Y motor
  233. Is 235 too hot for a N*star on hilly roads?
  234. Spark Plugs ACDELCO or somthign els ?
  235. Good mechanics to fix head gasket in Oceanside, California area
  236. rough idle, only when in gear and brake on
  237. The first head gasket failure - 1 out of around 90 or so
  238. Tranny problems?
  239. how to install serpentine belt on 98 concours
  240. engine swap
  241. Why high fuel pressure?
  242. 1997 Northstar low speed hesitation and noise
  243. 2001 DeVille DHS / North Star motor losing power
  244. Air-Dam / Belly Splash Guard importance on cooling your N*
  245. Make Your Own Damn Motor Mount
  246. cooling fans inop p01660
  247. Hard shifting 1-2 Help!
  248. Fabricated Torque Strut for the 2000+ Northstar
  249. Horrible Engine Bucking 93 N* Allante
  250. 1998 Seville STS Performance Engine Build - STAGE I