: Northstar Engines and System Technical Discussion



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  1. Deleting govnor on a 2000 eldorado????
  2. Service Engine Soon Codes 1022 & 1122
  3. Coolant Change Help
  4. Head Gasket Repair, now noticed block is cracked
  5. Priming the oil pump
  6. Confused as hell
  7. ATF Question...
  8. cooling fans come on at what temp?
  9. add torque struts(dog bones) to 99 seville
  10. Turbo Charged 99 STS
  11. What tools do you need for a hg/engine pull job
  12. headgasket need used insert kit
  13. Recent Stud Kit Customers - READ THIS PLEASE
  14. HELP My mechanic says I have carboned lifters
  15. What color are stock gaskets?
  16. Dumb head gasket question
  17. Resetting Timing after Head Gasket job.
  18. Cadillac Engineers please help us!
  19. how do i change my idle
  20. head gasket help!!!!!!
  21. Transmission cooling
  22. Idle at 3000 RPM HELP!!!
  23. added power?
  24. northstar crank sensors
  25. 2000 DTS plugs and hoses - tough job, I think
  26. FPR acting up
  27. 98+ STS brake upgrade?
  28. Spark plugs
  29. Email conversation with HEAL-A-SEAL
  30. O2 Sensors
  31. 01 SLS w/ Cracked Block - Need Cincy Area Mechanic
  32. 06 DTS crank seal leaking
  33. 4t80e side cover drain
  34. '98 STS stumbles and misses (NO CEL)
  35. MAP sensor keeps going bad - 94 N*
  36. 2004 dhs starting problem
  37. Attention All Northstar Technicians- New Northstar Drilling / Tapping Machine
  38. headgasket being repaired
  39. High mileage oils
  40. P0420 code
  41. Wot?
  42. You'll never guess what I broke today
  43. 95 STS fluctuating rpm and slight bogging while driving
  44. 1993 Cadillac sts 4.6 idle fluctuating
  45. SLS engine and trannie in a STS?
  46. Air conditioning compressor clutch bearing
  47. Manifold Blowoff Leaking - parking break stuck
  48. 110,000 miles, what else should be done along with head gaskets?
  49. "Tic Tic Tic" sound on 02 SLS
  50. Flashing SES/P0300
  51. Working on mama's Caddy. Need help with O2 Sensor
  52. Head Gasket?
  53. Investors needed. Big time.
  54. thermostat housing gasket? 99 sts
  55. New England area Northstar mechanics? (Head Gaskets)
  56. 6 oil leaks; gaskets replaced now intake plenum boot replaced..
  57. That's a lot of smoke! (exhaust)
  58. Mobile 1 Clean High Mileage
  59. Chocolate Milk in the oilpan
  60. Heater Core Inlet Connector O-Ring Leak
  61. Breakthrough for anyone with bad exhaust cams
  62. 96 Aurora 4.0
  63. Idle Too Low P0506 New Throttle Body?
  64. Northstar mechanic on Long Island?
  65. 4t80E shift solenoid part #
  66. B0149
  67. Code P119
  68. HeadGasket Repaired - cost $1500 - but more problems?...
  69. 95 Eldo headgaskets?
  70. Only overheats when the AC or the heat is on....
  71. 06+ STS Northstar ECM repin to 07-08, new carrer and trans install
  72. Aftermarket Temp. Gauge
  73. Coolant Supply Line
  74. Idles rough after being started in the morning
  75. Best way to clean the engine bay?
  76. 2001 Cadillac DTS Can't get up to speed, power loss, studdering, See Video
  77. Tricky Coolant Leak
  78. Coming back home
  79. 2000 DHS exhaust smoking and running poor
  80. 4 Engine Questions
  81. Is this guy being honest with me? video of a SEIZED ENGINE!!!
  82. Any thoughts on this...
  83. tap for time serts
  84. Just bought a 98 Deville, was overheating, am I paranoid?
  85. 208 at 40+ 212 at <40
  86. low oil pressure
  87. Batman's Northstar
  88. Another Wont crank issue
  89. Woohoo...Head gasket repair is done
  90. 1998 Deville acceleration slip
  91. Steering joint bolt
  92. My bone stock '98 STS pulled a 14.95 in the 1/4
  93. Weird Noise
  94. Heartland High Mileage Oil Changer Review
  95. 95 sls n* solenoid clicking
  96. Interesting find
  97. Valve cover bolts???
  98. Timing mark clarification
  99. Engine in the car repair... how many gaskets?
  100. Front hydraulic motor mount
  101. I can't get the CV joint to separate from the Trans
  102. 1993 Caddillac Eldorado - Timing Chain Issue
  103. Stud Kit Success!!
  104. Ways to increase performance?
  105. Radiator leaks and engine runs rough, no codes
  106. Ethanol Blends
  107. 98 Eldorado Starting Problems
  108. Problems removing head dowels
  109. Another visit to the track
  110. 95 vs 99 Northstar
  111. Tuning up the engine.
  112. Head Gasket Repair At Your Location!
  113. Head Gasket Paranoia
  114. catalyst converter replaced
  115. 93 STS Lots of smoke after fillup
  116. Exact oil filter wrench for 1996 Seville SLS
  117. new northstar
  118. Super Noob needs help overheating
  119. Nitrous Help: 01 DTS
  120. Head gasket removal, best practices
  121. 01 deville o2's locations?
  122. Head stud kit
  123. Documenting a swap: N* 4.6 / 97 STS
  124. 2005 DTS Twin Turbo project??
  125. No pcm data
  126. No pcm data?
  127. WIll a 98 vin 9 motor go into a 94 STS
  128. another newbie HG question
  129. NEW - 2002 Head Gasket Failure - Best Fix...
  130. Failed Smog Emissions Northstar
  131. What could it be?
  132. Exchange fluids how often?
  133. Tuning thread. Disappointed, but I understand.
  134. looking to buy a Caddy
  135. AC Delco platinum plug gap settings for N*
  136. how do i get my car to northstar preformance, uh cheaply?
  137. Engine 'misses' at stoplights
  138. where to get my head gasket repaired?
  139. Engine Shaking
  140. 4.6 Prevention and maintenance for longer life IE head gaskets.
  141. How to properly switch from red to green in a 2000 STS
  142. Water Pump Issue
  143. Lucas Oil Stabilizer
  144. Rough idle and low speed chug
  145. barS headgasket repair, has anyone tried it?
  146. Secondary Air Injection Check Valve... Bent?
  147. 2000 STS motor mount help?
  148. Oil pressure dummy light flickers...
  149. Head Bolts...
  150. Slight stumble, no codes
  151. 97 Deville wont start in the morning
  152. Stud Kit Help
  153. A kitten caused my Serpentine Belt to come off
  154. Check Coolant Level
  155. Cleaning Heads and Block
  156. Over Heating... HELP!!!
  157. 2001 deville rough idle
  158. engine grounds
  159. manifold blowoff
  160. sealant for blown heads?
  161. 1994 STS Overheating (I think)...
  162. Block Identification Numbers
  163. Snapping noise when coming to a stop..Answered Finally!!!
  164. Overheating Eldorado Help
  165. need some help
  166. 05' STS. Little help with P0102 please
  167. 2000 DTS P0300 code
  168. Head gasket repair
  169. P041 1994 deville concours
  170. Quick Oil Question
  171. rough idle, no codes, rough start
  172. coolant leak
  173. STS Radiator Hose Replacement
  174. 95 Eldorado ETC - Cooling system
  175. power steering line: o-ring?
  176. broken bolt in oil pan
  177. Water pump & crossover gasket - $$$$
  178. Help Me Please
  179. Rad Cap PSI was wrong
  180. Coolant Leak. Where's it coming from?
  181. Water pump Purge line?
  182. 5w30 or 0w30
  183. Destroying a N* Engine
  184. N* engine removal - newbee
  185. 02 DHS overheating
  186. TCC Stuck Off
  187. No clue what to do. Northstar blues
  188. problem with map sensors
  189. 2001 caddy sts seville tranny
  190. What is going on with the car?
  191. Spark Plug Wires
  192. "Hush" or "Gasp" Before Expected Throttle Response
  193. my 93 ETC Eldorado N* has a question for you guys
  194. Which spark plugs to buy?
  195. Thoughts on Dex-Cool and Head Gaskets
  196. 2001 cadillac deville small hesitations
  197. Normal Operating Temperature?
  198. Intermittent starting issue 97Seville SLS
  199. Trouble finding exhaust leak 99 Deville Y motor
  200. Is 235 too hot for a N*star on hilly roads?
  201. Spark Plugs ACDELCO or somthign els ?
  202. Good mechanics to fix head gasket in Oceanside, California area
  203. rough idle, only when in gear and brake on
  204. The first head gasket failure - 1 out of around 90 or so
  205. Tranny problems?
  206. how to install serpentine belt on 98 concours
  207. engine swap
  208. Why high fuel pressure?
  209. 1997 Northstar low speed hesitation and noise
  210. 2001 DeVille DHS / North Star motor losing power
  211. Air-Dam / Belly Splash Guard importance on cooling your N*
  212. Make Your Own Damn Motor Mount
  213. cooling fans inop p01660
  214. Hard shifting 1-2 Help!
  215. Fabricated Torque Strut for the 2000+ Northstar
  216. Horrible Engine Bucking 93 N* Allante
  217. 1998 Seville STS Performance Engine Build - STAGE I
  218. My pulley melted
  219. 01 Deville issues, no codes, no check engine light
  220. '96 Deville Coolant Change
  221. Overheating
  222. White smoke after changing starter (by removing intake manifold)
  223. No current codes but...
  224. N* Powered Camaro
  225. Strange coolant/heat issue 99 STS
  226. 1998 STS engine full of mystery sludge?!
  227. Rough idle-stumble on accel
  228. 95 Eldorado 4.6L Engine stalls
  229. Oil in intake manifold 4.6 1993
  230. 98 Deville Concours Preformance Exhaust???
  231. Engine year compatibility
  232. Sucessful Northstar head gasket repair in a bottle
  233. PCM 09354896 code DCHJ
  234. 1997 4.6 eldorado up hill over heats
  235. fuel injector ohms
  236. 93 sts fuel rail removal tools
  237. Air ride compressor
  238. Overheating??
  239. Codes P0122 and P1122...
  240. Motor mount replaced!! WTF!!!!!
  241. 1996 Seville STS O2 Sensor REMOVAL. CAN"T GET TO IT
  242. 96 Seville where's the 02 Oxygen Sensor Location?? PLEASE HELP WONT PASS EMISSIONS!!!
  243. Long road trips good for the Northstar?
  244. headgaskets a 2nd time?
  245. 97 eldorado w/180,000 miles, should i upgrade to a preformance coil?
  246. 94 eldorado 4.6 - no codes - stumbling/chugging - about to give up
  247. Car not turning over
  248. Codes 340 and 1016 + Fixed A.I.R. with new coil cartridge?
  249. Transmission issue
  250. spark plugs