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View Full Version : Northstar Engines and System Technical Discussion



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  1. Another visit to the track
  2. Problems removing head dowels
  3. 98 Eldorado Starting Problems
  4. Ethanol Blends
  5. Radiator leaks and engine runs rough, no codes
  6. Ways to increase performance?
  7. Stud Kit Success!!
  8. 1993 Caddillac Eldorado - Timing Chain Issue
  9. I can't get the CV joint to separate from the Trans
  10. Front hydraulic motor mount
  11. Engine in the car repair... how many gaskets?
  12. Timing mark clarification
  13. Valve cover bolts???
  14. Interesting find
  15. 95 sls n* solenoid clicking
  16. Heartland High Mileage Oil Changer Review
  17. Weird Noise
  18. My bone stock '98 STS pulled a 14.95 in the 1/4
  19. Steering joint bolt
  20. 1998 Deville acceleration slip
  21. Woohoo...Head gasket repair is done
  22. Another Wont crank issue
  23. Batman's Northstar
  24. low oil pressure
  25. 208 at 40+ 212 at <40
  26. Just bought a 98 Deville, was overheating, am I paranoid?
  27. tap for time serts
  28. Any thoughts on this...
  29. Is this guy being honest with me? video of a SEIZED ENGINE!!!
  30. 4 Engine Questions
  31. 2000 DHS exhaust smoking and running poor
  32. Coming back home
  33. Tricky Coolant Leak
  34. 2001 Cadillac DTS Can't get up to speed, power loss, studdering, See Video
  35. Best way to clean the engine bay?
  36. Idles rough after being started in the morning
  37. Coolant Supply Line
  38. Aftermarket Temp. Gauge
  39. 06+ STS Northstar ECM repin to 07-08, new carrer and trans install
  40. Only overheats when the AC or the heat is on....
  41. 95 Eldo headgaskets?
  42. HeadGasket Repaired - cost $1500 - but more problems?...
  43. Code P119
  44. B0149
  45. 4t80E shift solenoid part #
  46. Northstar mechanic on Long Island?
  47. Idle Too Low P0506 New Throttle Body?
  48. 96 Aurora 4.0
  49. Breakthrough for anyone with bad exhaust cams
  50. Heater Core Inlet Connector O-Ring Leak
  51. Chocolate Milk in the oilpan
  52. Mobile 1 Clean High Mileage
  53. That's a lot of smoke! (exhaust)
  54. 6 oil leaks; gaskets replaced now intake plenum boot replaced..
  55. New England area Northstar mechanics? (Head Gaskets)
  56. thermostat housing gasket? 99 sts
  57. Investors needed. Big time.
  58. Head Gasket?
  59. Working on mama's Caddy. Need help with O2 Sensor
  60. Flashing SES/P0300
  61. "Tic Tic Tic" sound on 02 SLS
  62. 110,000 miles, what else should be done along with head gaskets?
  63. Manifold Blowoff Leaking - parking break stuck
  64. Air conditioning compressor clutch bearing
  65. SLS engine and trannie in a STS?
  66. 1993 Cadillac sts 4.6 idle fluctuating
  67. 95 STS fluctuating rpm and slight bogging while driving
  68. You'll never guess what I broke today
  69. Wot?
  70. P0420 code
  71. High mileage oils
  72. headgasket being repaired
  73. Attention All Northstar Technicians- New Northstar Drilling / Tapping Machine
  74. 2004 dhs starting problem
  75. MAP sensor keeps going bad - 94 N*
  76. '98 STS stumbles and misses (NO CEL)
  77. 4t80e side cover drain
  78. 06 DTS crank seal leaking
  79. 01 SLS w/ Cracked Block - Need Cincy Area Mechanic
  80. O2 Sensors
  81. Email conversation with HEAL-A-SEAL
  82. Spark plugs
  83. 98+ STS brake upgrade?
  84. FPR acting up
  85. 2000 DTS plugs and hoses - tough job, I think
  86. northstar crank sensors
  87. added power?
  88. Idle at 3000 RPM HELP!!!
  89. Transmission cooling
  90. head gasket help!!!!!!
  91. how do i change my idle
  92. Cadillac Engineers please help us!
  93. Resetting Timing after Head Gasket job.
  94. Dumb head gasket question
  95. What color are stock gaskets?
  96. HELP My mechanic says I have carboned lifters
  97. Recent Stud Kit Customers - READ THIS PLEASE
  98. headgasket need used insert kit
  99. What tools do you need for a hg/engine pull job
  100. Turbo Charged 99 STS
  101. add torque struts(dog bones) to 99 seville
  102. cooling fans come on at what temp?
  103. ATF Question...
  104. Confused as hell
  105. Priming the oil pump
  106. Head Gasket Repair, now noticed block is cracked
  107. Coolant Change Help
  108. Service Engine Soon Codes 1022 & 1122
  109. Deleting govnor on a 2000 eldorado????
  110. 97 sls shifting problem
  111. Power steering leak
  112. Northstar engine swap 2000 put in a 96 Northstar
  113. Please help guy
  114. Today's Racing Question: Studs or Norm's?
  115. motor swap
  116. 98 N* engine, blue valve cover washers?
  117. timing car with engine in car
  118. Pulleys... A good source?
  119. To hone? or not to hone
  120. timming in a 95 sts
  121. northstar in a camaro!
  122. Race Caddy losing coolant and making noise
  123. CHRFAB cams installed - 98 STS - the results are in
  124. Still making engine noise
  125. TCC Stuck Off (Code P0741) Still on after Solenoid Changeout
  126. Misfire on cylinder 6
  127. pulley decides to whine
  128. torque angle meter?
  129. Northstar powered trike
  130. Who wants/needs a brand new Supercharged Northstar / RWD Trans?
  131. Slow start and stalling
  132. pull tranny, fix half case leak
  133. I need help!!!
  134. Is there a tuner for a 2001 Deville?
  135. Randomly Running Extremely Rich
  136. Misfire 1998 STS
  137. Northstar Performance warranty-good
  138. EVAP switch, purge solenoid, i butchered it
  139. Rear main seal & case half seal - '98 Deville
  140. Why NOT to use time serts -
  141. Fixable or not?
  142. Your Opinion
  143. 4T80 experts
  144. Engine Installer or Head Gasket Repair in NY, CT, NJ, MA?
  145. State by state guide to Northstar head gasket repair shops
  146. Anyone in Ontario with a good scanner/reader?
  147. need tranny parts advise
  148. Looking to do a HG job for the holidays?
  149. P0621 Code Batt not Charging/Svc Chrg Sys
  150. Coolant manifold/Crossover gasket sources?
  151. What size is my motor?
  152. "check emissions system"
  153. swap entire cradle from another car??
  154. Northstar head gasket issues
  155. I smell coolant
  156. Zero compression in Cylinder 2
  157. Oil looks like crap, advice please
  158. help! erratic idle, no codes :-x
  159. Jake clear out your mailbox
  160. 160* Thermostat?
  161. engine vacuum line?
  162. Going in again! HG's first, now torque converter
  163. 4.6 Northstar
  164. RACE FANS Free beer 1/16-1/17 if you live around Richmond (sorta)
  165. Bubbles on trans fluid dipstick bad?
  166. couple of quick questions on my deville
  167. Quick help need on 4L80
  168. Seeping Oil Pan Gasket
  169. URGENT WORKING RIGHT NOW Fuel Line Removal
  170. Grumble, engine dropping questions
  171. BackFire Valve
  172. 4t80 extension housing, what part
  173. power steering lock up
  174. ok ok... so engine out the top... what???
  175. Car temperture went up after putting stop leak in
  176. P0306 and P0300 codes CKP changed
  177. timing chain with engine in car
  178. Why do so many people do it the hard way.
  179. Valve keepers fell off! But valve still in there!
  180. 2000 DHS engine swap
  181. Can you blow the head gasket driving without pressurized coolant?
  182. Advice on engine teardown TOMORROW
  183. 1996 Deville N*
  184. N* easiest cadillac engine to work on
  185. 100k question
  186. want to buy a 95 eldorado with northstar
  187. Ugg todays northstar problem, please help
  188. Waterpump removal doh
  189. Deal or no deal?
  190. Upgrade
  191. Never installed coolant supplement pellets, bad?
  192. No Fire from 1 coil pack! ?'s about ignition!
  193. Coil Pack - P0300 Culprit
  194. head gasket repair in Iowa or surrounding states
  195. Pre-2000 Ignition Control Module (ICM) - How It Works
  196. Steering shaft to rack coupler help?
  197. Jake stud kit installation
  198. ? about rear main seal and flywheel bolts
  199. Alternator question 94 seville
  200. fuel line clips on the tranny
  201. 99 sts running rich
  202. Head Gasket - Ran in 2nd Gear & Temp Went Down?
  203. Coil Pack Test
  204. 93 Northstar Block
  205. 1994 Eldorado Thermostat
  206. cracked block issue, common??
  207. 1994 STS - ECM replaced, road speed surge
  208. 2002 Eldorado Drive Belt Plus Maintenance
  209. Coolant tube question
  210. 99 sts won't start please help a newbie
  211. readings with snapon scanner
  212. V8 camshaft tool set help?
  213. High Idle Causes
  214. Loud ticking at idle.
  215. Engine Swap 2000 STS into a 1998 STS
  216. Frustrated
  217. Do you have to remove the alternator?
  218. Water pump tensioner pulley replaced
  219. TPS relearn
  220. Huge savings on Head Gasket Jobs - only $1320 USD
  221. 98 deville best oil for low oil oil consumption?
  222. Oil pressure at cranking speed on a rebuilt engine
  223. Is it a head gasket?
  224. Head Alignment Dowel ???
  225. 98 deville blue smoke and burning smell at high rpms.
  226. 1997 sts
  227. studs aren't straight
  228. headgasket
  229. Sensors going? -15c out.. i dont wana look...
  230. Water pump to head gaskets?
  231. speed limiting question
  232. northstar governer/limiter
  233. Did your Northstar's Y pipe come obstructed from the factory? Mine did (with pics)
  234. 03 STS using 1qt oil every 800mi - Should I be worried?
  235. Oil pan gasket material?
  236. P041 No Cam reference signal from ignition control module
  237. How often are blocks not re-useable for rebuild?
  238. 2003 northstar misfire
  239. 300,000 miles... I made it!!
  240. studs vs. inserts
  241. 99 4.6L n* Conversion Gasket Set
  242. Product Distributors needed throughout the USA - $$$ in it for you
  243. Fuel Injection Services, Are they worth it?
  244. Engine hot!!! Should I be worried????
  245. Wierd shudder - torque converter?
  246. Think the Northstar headgasket job is bad??
  247. Front Cover Gasket help
  248. 98 deville motor mounts....
  249. would you?
  250. NS front exh manifold