: Northstar Engines and System Technical Discussion



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  1. add torque struts(dog bones) to 99 seville
  2. Turbo Charged 99 STS
  3. What tools do you need for a hg/engine pull job
  4. headgasket need used insert kit
  5. Recent Stud Kit Customers - READ THIS PLEASE
  6. HELP My mechanic says I have carboned lifters
  7. What color are stock gaskets?
  8. Dumb head gasket question
  9. Resetting Timing after Head Gasket job.
  10. Cadillac Engineers please help us!
  11. how do i change my idle
  12. head gasket help!!!!!!
  13. Transmission cooling
  14. Idle at 3000 RPM HELP!!!
  15. added power?
  16. northstar crank sensors
  17. 2000 DTS plugs and hoses - tough job, I think
  18. FPR acting up
  19. 98+ STS brake upgrade?
  20. Spark plugs
  21. Email conversation with HEAL-A-SEAL
  22. O2 Sensors
  23. 01 SLS w/ Cracked Block - Need Cincy Area Mechanic
  24. 06 DTS crank seal leaking
  25. 4t80e side cover drain
  26. '98 STS stumbles and misses (NO CEL)
  27. MAP sensor keeps going bad - 94 N*
  28. 2004 dhs starting problem
  29. Attention All Northstar Technicians- New Northstar Drilling / Tapping Machine
  30. headgasket being repaired
  31. High mileage oils
  32. P0420 code
  33. Wot?
  34. You'll never guess what I broke today
  35. 95 STS fluctuating rpm and slight bogging while driving
  36. 1993 Cadillac sts 4.6 idle fluctuating
  37. SLS engine and trannie in a STS?
  38. Air conditioning compressor clutch bearing
  39. Manifold Blowoff Leaking - parking break stuck
  40. 110,000 miles, what else should be done along with head gaskets?
  41. "Tic Tic Tic" sound on 02 SLS
  42. Flashing SES/P0300
  43. Working on mama's Caddy. Need help with O2 Sensor
  44. Head Gasket?
  45. Investors needed. Big time.
  46. thermostat housing gasket? 99 sts
  47. New England area Northstar mechanics? (Head Gaskets)
  48. 6 oil leaks; gaskets replaced now intake plenum boot replaced..
  49. That's a lot of smoke! (exhaust)
  50. Mobile 1 Clean High Mileage
  51. Chocolate Milk in the oilpan
  52. Heater Core Inlet Connector O-Ring Leak
  53. Breakthrough for anyone with bad exhaust cams
  54. 96 Aurora 4.0
  55. Idle Too Low P0506 New Throttle Body?
  56. Northstar mechanic on Long Island?
  57. 4t80E shift solenoid part #
  58. B0149
  59. Code P119
  60. HeadGasket Repaired - cost $1500 - but more problems?...
  61. 95 Eldo headgaskets?
  62. Only overheats when the AC or the heat is on....
  63. 06+ STS Northstar ECM repin to 07-08, new carrer and trans install
  64. Aftermarket Temp. Gauge
  65. Coolant Supply Line
  66. Idles rough after being started in the morning
  67. Best way to clean the engine bay?
  68. 2001 Cadillac DTS Can't get up to speed, power loss, studdering, See Video
  69. Tricky Coolant Leak
  70. Coming back home
  71. 2000 DHS exhaust smoking and running poor
  72. 4 Engine Questions
  73. Is this guy being honest with me? video of a SEIZED ENGINE!!!
  74. Any thoughts on this...
  75. tap for time serts
  76. Just bought a 98 Deville, was overheating, am I paranoid?
  77. 208 at 40+ 212 at <40
  78. low oil pressure
  79. Batman's Northstar
  80. Another Wont crank issue
  81. Woohoo...Head gasket repair is done
  82. 1998 Deville acceleration slip
  83. Steering joint bolt
  84. My bone stock '98 STS pulled a 14.95 in the 1/4
  85. Weird Noise
  86. Heartland High Mileage Oil Changer Review
  87. 95 sls n* solenoid clicking
  88. Interesting find
  89. Valve cover bolts???
  90. Timing mark clarification
  91. Engine in the car repair... how many gaskets?
  92. Front hydraulic motor mount
  93. I can't get the CV joint to separate from the Trans
  94. 1993 Caddillac Eldorado - Timing Chain Issue
  95. Stud Kit Success!!
  96. Ways to increase performance?
  97. Radiator leaks and engine runs rough, no codes
  98. Ethanol Blends
  99. 98 Eldorado Starting Problems
  100. Problems removing head dowels
  101. Another visit to the track
  102. 95 vs 99 Northstar
  103. Tuning up the engine.
  104. Head Gasket Repair At Your Location!
  105. Head Gasket Paranoia
  106. catalyst converter replaced
  107. 93 STS Lots of smoke after fillup
  108. Exact oil filter wrench for 1996 Seville SLS
  109. new northstar
  110. Super Noob needs help overheating
  111. Nitrous Help: 01 DTS
  112. Head gasket removal, best practices
  113. 01 deville o2's locations?
  114. Head stud kit
  115. Documenting a swap: N* 4.6 / 97 STS
  116. 2005 DTS Twin Turbo project??
  117. No pcm data
  118. No pcm data?
  119. WIll a 98 vin 9 motor go into a 94 STS
  120. another newbie HG question
  121. NEW - 2002 Head Gasket Failure - Best Fix...
  122. Failed Smog Emissions Northstar
  123. What could it be?
  124. Exchange fluids how often?
  125. Tuning thread. Disappointed, but I understand.
  126. looking to buy a Caddy
  127. AC Delco platinum plug gap settings for N*
  128. how do i get my car to northstar preformance, uh cheaply?
  129. Engine 'misses' at stoplights
  130. where to get my head gasket repaired?
  131. Engine Shaking
  132. 4.6 Prevention and maintenance for longer life IE head gaskets.
  133. How to properly switch from red to green in a 2000 STS
  134. Water Pump Issue
  135. Lucas Oil Stabilizer
  136. Rough idle and low speed chug
  137. barS headgasket repair, has anyone tried it?
  138. Secondary Air Injection Check Valve... Bent?
  139. 2000 STS motor mount help?
  140. Oil pressure dummy light flickers...
  141. Head Bolts...
  142. Slight stumble, no codes
  143. 97 Deville wont start in the morning
  144. Stud Kit Help
  145. A kitten caused my Serpentine Belt to come off
  146. Check Coolant Level
  147. Cleaning Heads and Block
  148. Over Heating... HELP!!!
  149. 2001 deville rough idle
  150. engine grounds
  151. manifold blowoff
  152. sealant for blown heads?
  153. 1994 STS Overheating (I think)...
  154. Block Identification Numbers
  155. Snapping noise when coming to a stop..Answered Finally!!!
  156. Overheating Eldorado Help
  157. need some help
  158. 05' STS. Little help with P0102 please
  159. 2000 DTS P0300 code
  160. Head gasket repair
  161. P041 1994 deville concours
  162. Quick Oil Question
  163. rough idle, no codes, rough start
  164. coolant leak
  165. STS Radiator Hose Replacement
  166. 95 Eldorado ETC - Cooling system
  167. power steering line: o-ring?
  168. broken bolt in oil pan
  169. Water pump & crossover gasket - $$$$
  170. Help Me Please
  171. Rad Cap PSI was wrong
  172. Coolant Leak. Where's it coming from?
  173. Water pump Purge line?
  174. 5w30 or 0w30
  175. Destroying a N* Engine
  176. N* engine removal - newbee
  177. 02 DHS overheating
  178. TCC Stuck Off
  179. No clue what to do. Northstar blues
  180. problem with map sensors
  181. 2001 caddy sts seville tranny
  182. What is going on with the car?
  183. Spark Plug Wires
  184. "Hush" or "Gasp" Before Expected Throttle Response
  185. my 93 ETC Eldorado N* has a question for you guys
  186. Which spark plugs to buy?
  187. Thoughts on Dex-Cool and Head Gaskets
  188. 2001 cadillac deville small hesitations
  189. Normal Operating Temperature?
  190. Intermittent starting issue 97Seville SLS
  191. Trouble finding exhaust leak 99 Deville Y motor
  192. Is 235 too hot for a N*star on hilly roads?
  193. Spark Plugs ACDELCO or somthign els ?
  194. Good mechanics to fix head gasket in Oceanside, California area
  195. rough idle, only when in gear and brake on
  196. The first head gasket failure - 1 out of around 90 or so
  197. Tranny problems?
  198. how to install serpentine belt on 98 concours
  199. engine swap
  200. Why high fuel pressure?
  201. 1997 Northstar low speed hesitation and noise
  202. 2001 DeVille DHS / North Star motor losing power
  203. Air-Dam / Belly Splash Guard importance on cooling your N*
  204. Make Your Own Damn Motor Mount
  205. cooling fans inop p01660
  206. Hard shifting 1-2 Help!
  207. Fabricated Torque Strut for the 2000+ Northstar
  208. Horrible Engine Bucking 93 N* Allante
  209. 1998 Seville STS Performance Engine Build - STAGE I
  210. My pulley melted
  211. 01 Deville issues, no codes, no check engine light
  212. '96 Deville Coolant Change
  213. Overheating
  214. White smoke after changing starter (by removing intake manifold)
  215. No current codes but...
  216. N* Powered Camaro
  217. Strange coolant/heat issue 99 STS
  218. 1998 STS engine full of mystery sludge?!
  219. Rough idle-stumble on accel
  220. 95 Eldorado 4.6L Engine stalls
  221. Oil in intake manifold 4.6 1993
  222. 98 Deville Concours Preformance Exhaust???
  223. Engine year compatibility
  224. Sucessful Northstar head gasket repair in a bottle
  225. PCM 09354896 code DCHJ
  226. 1997 4.6 eldorado up hill over heats
  227. fuel injector ohms
  228. 93 sts fuel rail removal tools
  229. Air ride compressor
  230. Overheating??
  231. Codes P0122 and P1122...
  232. Motor mount replaced!! WTF!!!!!
  233. 1996 Seville STS O2 Sensor REMOVAL. CAN"T GET TO IT
  234. 96 Seville where's the 02 Oxygen Sensor Location?? PLEASE HELP WONT PASS EMISSIONS!!!
  235. Long road trips good for the Northstar?
  236. headgaskets a 2nd time?
  237. 97 eldorado w/180,000 miles, should i upgrade to a preformance coil?
  238. 94 eldorado 4.6 - no codes - stumbling/chugging - about to give up
  239. Car not turning over
  240. Codes 340 and 1016 + Fixed A.I.R. with new coil cartridge?
  241. Transmission issue
  242. spark plugs
  243. Yearly engine oil changes really necessary?
  244. Overheating problem
  245. maybe you all know more
  246. What Oil For Northstar Cams and Flat Tappets?
  247. 93 seville sts fuel rail
  248. rear main seal
  249. 93-99 Camshaft picture needed
  250. Seville 03 shaking problems after tune-up.