: Northstar Engines and System Technical Discussion



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  1. Advice on engine teardown TOMORROW
  2. Can you blow the head gasket driving without pressurized coolant?
  3. 2000 DHS engine swap
  4. Valve keepers fell off! But valve still in there!
  5. Why do so many people do it the hard way.
  6. timing chain with engine in car
  7. P0306 and P0300 codes CKP changed
  8. Car temperture went up after putting stop leak in
  9. ok ok... so engine out the top... what???
  10. power steering lock up
  11. 4t80 extension housing, what part
  12. BackFire Valve
  13. Grumble, engine dropping questions
  14. URGENT WORKING RIGHT NOW Fuel Line Removal
  15. Seeping Oil Pan Gasket
  16. Quick help need on 4L80
  17. couple of quick questions on my deville
  18. Bubbles on trans fluid dipstick bad?
  19. RACE FANS Free beer 1/16-1/17 if you live around Richmond (sorta)
  20. 4.6 Northstar
  21. Going in again! HG's first, now torque converter
  22. engine vacuum line?
  23. 160* Thermostat?
  24. Jake clear out your mailbox
  25. help! erratic idle, no codes :-x
  26. Oil looks like crap, advice please
  27. Zero compression in Cylinder 2
  28. I smell coolant
  29. Northstar head gasket issues
  30. swap entire cradle from another car??
  31. "check emissions system"
  32. What size is my motor?
  33. Coolant manifold/Crossover gasket sources?
  34. P0621 Code Batt not Charging/Svc Chrg Sys
  35. Looking to do a HG job for the holidays?
  36. need tranny parts advise
  37. Anyone in Ontario with a good scanner/reader?
  38. State by state guide to Northstar head gasket repair shops
  39. Engine Installer or Head Gasket Repair in NY, CT, NJ, MA?
  40. 4T80 experts
  41. Your Opinion
  42. Fixable or not?
  43. Why NOT to use time serts -
  44. Rear main seal & case half seal - '98 Deville
  45. EVAP switch, purge solenoid, i butchered it
  46. Northstar Performance warranty-good
  47. Misfire 1998 STS
  48. Randomly Running Extremely Rich
  49. Is there a tuner for a 2001 Deville?
  50. I need help!!!
  51. pull tranny, fix half case leak
  52. Slow start and stalling
  53. Who wants/needs a brand new Supercharged Northstar / RWD Trans?
  54. Northstar powered trike
  55. torque angle meter?
  56. pulley decides to whine
  57. Misfire on cylinder 6
  58. TCC Stuck Off (Code P0741) Still on after Solenoid Changeout
  59. Still making engine noise
  60. CHRFAB cams installed - 98 STS - the results are in
  61. Race Caddy losing coolant and making noise
  62. northstar in a camaro!
  63. timming in a 95 sts
  64. To hone? or not to hone
  65. Pulleys... A good source?
  66. timing car with engine in car
  67. 98 N* engine, blue valve cover washers?
  68. motor swap
  69. Today's Racing Question: Studs or Norm's?
  70. Please help guy
  71. Northstar engine swap 2000 put in a 96 Northstar
  72. Power steering leak
  73. 97 sls shifting problem
  74. Deleting govnor on a 2000 eldorado????
  75. Service Engine Soon Codes 1022 & 1122
  76. Coolant Change Help
  77. Head Gasket Repair, now noticed block is cracked
  78. Priming the oil pump
  79. Confused as hell
  80. ATF Question...
  81. cooling fans come on at what temp?
  82. add torque struts(dog bones) to 99 seville
  83. Turbo Charged 99 STS
  84. What tools do you need for a hg/engine pull job
  85. headgasket need used insert kit
  86. Recent Stud Kit Customers - READ THIS PLEASE
  87. HELP My mechanic says I have carboned lifters
  88. What color are stock gaskets?
  89. Dumb head gasket question
  90. Resetting Timing after Head Gasket job.
  91. Cadillac Engineers please help us!
  92. how do i change my idle
  93. head gasket help!!!!!!
  94. Transmission cooling
  95. Idle at 3000 RPM HELP!!!
  96. added power?
  97. northstar crank sensors
  98. 2000 DTS plugs and hoses - tough job, I think
  99. FPR acting up
  100. 98+ STS brake upgrade?
  101. Spark plugs
  102. Email conversation with HEAL-A-SEAL
  103. O2 Sensors
  104. 01 SLS w/ Cracked Block - Need Cincy Area Mechanic
  105. 06 DTS crank seal leaking
  106. 4t80e side cover drain
  107. '98 STS stumbles and misses (NO CEL)
  108. MAP sensor keeps going bad - 94 N*
  109. 2004 dhs starting problem
  110. Attention All Northstar Technicians- New Northstar Drilling / Tapping Machine
  111. headgasket being repaired
  112. High mileage oils
  113. P0420 code
  114. Wot?
  115. You'll never guess what I broke today
  116. 95 STS fluctuating rpm and slight bogging while driving
  117. 1993 Cadillac sts 4.6 idle fluctuating
  118. SLS engine and trannie in a STS?
  119. Air conditioning compressor clutch bearing
  120. Manifold Blowoff Leaking - parking break stuck
  121. 110,000 miles, what else should be done along with head gaskets?
  122. "Tic Tic Tic" sound on 02 SLS
  123. Flashing SES/P0300
  124. Working on mama's Caddy. Need help with O2 Sensor
  125. Head Gasket?
  126. Investors needed. Big time.
  127. thermostat housing gasket? 99 sts
  128. New England area Northstar mechanics? (Head Gaskets)
  129. 6 oil leaks; gaskets replaced now intake plenum boot replaced..
  130. That's a lot of smoke! (exhaust)
  131. Mobile 1 Clean High Mileage
  132. Chocolate Milk in the oilpan
  133. Heater Core Inlet Connector O-Ring Leak
  134. Breakthrough for anyone with bad exhaust cams
  135. 96 Aurora 4.0
  136. Idle Too Low P0506 New Throttle Body?
  137. Northstar mechanic on Long Island?
  138. 4t80E shift solenoid part #
  139. B0149
  140. Code P119
  141. HeadGasket Repaired - cost $1500 - but more problems?...
  142. 95 Eldo headgaskets?
  143. Only overheats when the AC or the heat is on....
  144. 06+ STS Northstar ECM repin to 07-08, new carrer and trans install
  145. Aftermarket Temp. Gauge
  146. Coolant Supply Line
  147. Idles rough after being started in the morning
  148. Best way to clean the engine bay?
  149. 2001 Cadillac DTS Can't get up to speed, power loss, studdering, See Video
  150. Tricky Coolant Leak
  151. Coming back home
  152. 2000 DHS exhaust smoking and running poor
  153. 4 Engine Questions
  154. Is this guy being honest with me? video of a SEIZED ENGINE!!!
  155. Any thoughts on this...
  156. tap for time serts
  157. Just bought a 98 Deville, was overheating, am I paranoid?
  158. 208 at 40+ 212 at <40
  159. low oil pressure
  160. Batman's Northstar
  161. Another Wont crank issue
  162. Woohoo...Head gasket repair is done
  163. 1998 Deville acceleration slip
  164. Steering joint bolt
  165. My bone stock '98 STS pulled a 14.95 in the 1/4
  166. Weird Noise
  167. Heartland High Mileage Oil Changer Review
  168. 95 sls n* solenoid clicking
  169. Interesting find
  170. Valve cover bolts???
  171. Timing mark clarification
  172. Engine in the car repair... how many gaskets?
  173. Front hydraulic motor mount
  174. I can't get the CV joint to separate from the Trans
  175. 1993 Caddillac Eldorado - Timing Chain Issue
  176. Stud Kit Success!!
  177. Ways to increase performance?
  178. Radiator leaks and engine runs rough, no codes
  179. Ethanol Blends
  180. 98 Eldorado Starting Problems
  181. Problems removing head dowels
  182. Another visit to the track
  183. 95 vs 99 Northstar
  184. Tuning up the engine.
  185. Head Gasket Repair At Your Location!
  186. Head Gasket Paranoia
  187. catalyst converter replaced
  188. 93 STS Lots of smoke after fillup
  189. Exact oil filter wrench for 1996 Seville SLS
  190. new northstar
  191. Super Noob needs help overheating
  192. Nitrous Help: 01 DTS
  193. Head gasket removal, best practices
  194. 01 deville o2's locations?
  195. Head stud kit
  196. Documenting a swap: N* 4.6 / 97 STS
  197. 2005 DTS Twin Turbo project??
  198. No pcm data
  199. No pcm data?
  200. WIll a 98 vin 9 motor go into a 94 STS
  201. another newbie HG question
  202. NEW - 2002 Head Gasket Failure - Best Fix...
  203. Failed Smog Emissions Northstar
  204. What could it be?
  205. Exchange fluids how often?
  206. Tuning thread. Disappointed, but I understand.
  207. looking to buy a Caddy
  208. AC Delco platinum plug gap settings for N*
  209. how do i get my car to northstar preformance, uh cheaply?
  210. Engine 'misses' at stoplights
  211. where to get my head gasket repaired?
  212. Engine Shaking
  213. 4.6 Prevention and maintenance for longer life IE head gaskets.
  214. How to properly switch from red to green in a 2000 STS
  215. Water Pump Issue
  216. Lucas Oil Stabilizer
  217. Rough idle and low speed chug
  218. barS headgasket repair, has anyone tried it?
  219. Secondary Air Injection Check Valve... Bent?
  220. 2000 STS motor mount help?
  221. Oil pressure dummy light flickers...
  222. Head Bolts...
  223. Slight stumble, no codes
  224. 97 Deville wont start in the morning
  225. Stud Kit Help
  226. A kitten caused my Serpentine Belt to come off
  227. Check Coolant Level
  228. Cleaning Heads and Block
  229. Over Heating... HELP!!!
  230. 2001 deville rough idle
  231. engine grounds
  232. manifold blowoff
  233. sealant for blown heads?
  234. 1994 STS Overheating (I think)...
  235. Block Identification Numbers
  236. Snapping noise when coming to a stop..Answered Finally!!!
  237. Overheating Eldorado Help
  238. need some help
  239. 05' STS. Little help with P0102 please
  240. 2000 DTS P0300 code
  241. Head gasket repair
  242. P041 1994 deville concours
  243. Quick Oil Question
  244. rough idle, no codes, rough start
  245. coolant leak
  246. STS Radiator Hose Replacement
  247. 95 Eldorado ETC - Cooling system
  248. power steering line: o-ring?
  249. broken bolt in oil pan
  250. Water pump & crossover gasket - $$$$