: Northstar Engines and System Technical Discussion



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  1. HELP My mechanic says I have carboned lifters
  2. What color are stock gaskets?
  3. Dumb head gasket question
  4. Resetting Timing after Head Gasket job.
  5. Cadillac Engineers please help us!
  6. how do i change my idle
  7. head gasket help!!!!!!
  8. Transmission cooling
  9. Idle at 3000 RPM HELP!!!
  10. added power?
  11. northstar crank sensors
  12. 2000 DTS plugs and hoses - tough job, I think
  13. FPR acting up
  14. 98+ STS brake upgrade?
  15. Spark plugs
  16. Email conversation with HEAL-A-SEAL
  17. O2 Sensors
  18. 01 SLS w/ Cracked Block - Need Cincy Area Mechanic
  19. 06 DTS crank seal leaking
  20. 4t80e side cover drain
  21. '98 STS stumbles and misses (NO CEL)
  22. MAP sensor keeps going bad - 94 N*
  23. 2004 dhs starting problem
  24. Attention All Northstar Technicians- New Northstar Drilling / Tapping Machine
  25. headgasket being repaired
  26. High mileage oils
  27. P0420 code
  28. Wot?
  29. You'll never guess what I broke today
  30. 95 STS fluctuating rpm and slight bogging while driving
  31. 1993 Cadillac sts 4.6 idle fluctuating
  32. SLS engine and trannie in a STS?
  33. Air conditioning compressor clutch bearing
  34. Manifold Blowoff Leaking - parking break stuck
  35. 110,000 miles, what else should be done along with head gaskets?
  36. "Tic Tic Tic" sound on 02 SLS
  37. Flashing SES/P0300
  38. Working on mama's Caddy. Need help with O2 Sensor
  39. Head Gasket?
  40. Investors needed. Big time.
  41. thermostat housing gasket? 99 sts
  42. New England area Northstar mechanics? (Head Gaskets)
  43. 6 oil leaks; gaskets replaced now intake plenum boot replaced..
  44. That's a lot of smoke! (exhaust)
  45. Mobile 1 Clean High Mileage
  46. Chocolate Milk in the oilpan
  47. Heater Core Inlet Connector O-Ring Leak
  48. Breakthrough for anyone with bad exhaust cams
  49. 96 Aurora 4.0
  50. Idle Too Low P0506 New Throttle Body?
  51. Northstar mechanic on Long Island?
  52. 4t80E shift solenoid part #
  53. B0149
  54. Code P119
  55. HeadGasket Repaired - cost $1500 - but more problems?...
  56. 95 Eldo headgaskets?
  57. Only overheats when the AC or the heat is on....
  58. 06+ STS Northstar ECM repin to 07-08, new carrer and trans install
  59. Aftermarket Temp. Gauge
  60. Coolant Supply Line
  61. Idles rough after being started in the morning
  62. Best way to clean the engine bay?
  63. 2001 Cadillac DTS Can't get up to speed, power loss, studdering, See Video
  64. Tricky Coolant Leak
  65. Coming back home
  66. 2000 DHS exhaust smoking and running poor
  67. 4 Engine Questions
  68. Is this guy being honest with me? video of a SEIZED ENGINE!!!
  69. Any thoughts on this...
  70. tap for time serts
  71. Just bought a 98 Deville, was overheating, am I paranoid?
  72. 208 at 40+ 212 at <40
  73. low oil pressure
  74. Batman's Northstar
  75. Another Wont crank issue
  76. Woohoo...Head gasket repair is done
  77. 1998 Deville acceleration slip
  78. Steering joint bolt
  79. My bone stock '98 STS pulled a 14.95 in the 1/4
  80. Weird Noise
  81. Heartland High Mileage Oil Changer Review
  82. 95 sls n* solenoid clicking
  83. Interesting find
  84. Valve cover bolts???
  85. Timing mark clarification
  86. Engine in the car repair... how many gaskets?
  87. Front hydraulic motor mount
  88. I can't get the CV joint to separate from the Trans
  89. 1993 Caddillac Eldorado - Timing Chain Issue
  90. Stud Kit Success!!
  91. Ways to increase performance?
  92. Radiator leaks and engine runs rough, no codes
  93. Ethanol Blends
  94. 98 Eldorado Starting Problems
  95. Problems removing head dowels
  96. Another visit to the track
  97. 95 vs 99 Northstar
  98. Tuning up the engine.
  99. Head Gasket Repair At Your Location!
  100. Head Gasket Paranoia
  101. catalyst converter replaced
  102. 93 STS Lots of smoke after fillup
  103. Exact oil filter wrench for 1996 Seville SLS
  104. new northstar
  105. Super Noob needs help overheating
  106. Nitrous Help: 01 DTS
  107. Head gasket removal, best practices
  108. 01 deville o2's locations?
  109. Head stud kit
  110. Documenting a swap: N* 4.6 / 97 STS
  111. 2005 DTS Twin Turbo project??
  112. No pcm data
  113. No pcm data?
  114. WIll a 98 vin 9 motor go into a 94 STS
  115. another newbie HG question
  116. NEW - 2002 Head Gasket Failure - Best Fix...
  117. Failed Smog Emissions Northstar
  118. What could it be?
  119. Exchange fluids how often?
  120. Tuning thread. Disappointed, but I understand.
  121. looking to buy a Caddy
  122. AC Delco platinum plug gap settings for N*
  123. how do i get my car to northstar preformance, uh cheaply?
  124. Engine 'misses' at stoplights
  125. where to get my head gasket repaired?
  126. Engine Shaking
  127. 4.6 Prevention and maintenance for longer life IE head gaskets.
  128. How to properly switch from red to green in a 2000 STS
  129. Water Pump Issue
  130. Lucas Oil Stabilizer
  131. Rough idle and low speed chug
  132. barS headgasket repair, has anyone tried it?
  133. Secondary Air Injection Check Valve... Bent?
  134. 2000 STS motor mount help?
  135. Oil pressure dummy light flickers...
  136. Head Bolts...
  137. Slight stumble, no codes
  138. 97 Deville wont start in the morning
  139. Stud Kit Help
  140. A kitten caused my Serpentine Belt to come off
  141. Check Coolant Level
  142. Cleaning Heads and Block
  143. Over Heating... HELP!!!
  144. 2001 deville rough idle
  145. engine grounds
  146. manifold blowoff
  147. sealant for blown heads?
  148. 1994 STS Overheating (I think)...
  149. Block Identification Numbers
  150. Snapping noise when coming to a stop..Answered Finally!!!
  151. Overheating Eldorado Help
  152. need some help
  153. 05' STS. Little help with P0102 please
  154. 2000 DTS P0300 code
  155. Head gasket repair
  156. P041 1994 deville concours
  157. Quick Oil Question
  158. rough idle, no codes, rough start
  159. coolant leak
  160. STS Radiator Hose Replacement
  161. 95 Eldorado ETC - Cooling system
  162. power steering line: o-ring?
  163. broken bolt in oil pan
  164. Water pump & crossover gasket - $$$$
  165. Help Me Please
  166. Rad Cap PSI was wrong
  167. Coolant Leak. Where's it coming from?
  168. Water pump Purge line?
  169. 5w30 or 0w30
  170. Destroying a N* Engine
  171. N* engine removal - newbee
  172. 02 DHS overheating
  173. TCC Stuck Off
  174. No clue what to do. Northstar blues
  175. problem with map sensors
  176. 2001 caddy sts seville tranny
  177. What is going on with the car?
  178. Spark Plug Wires
  179. "Hush" or "Gasp" Before Expected Throttle Response
  180. my 93 ETC Eldorado N* has a question for you guys
  181. Which spark plugs to buy?
  182. Thoughts on Dex-Cool and Head Gaskets
  183. 2001 cadillac deville small hesitations
  184. Normal Operating Temperature?
  185. Intermittent starting issue 97Seville SLS
  186. Trouble finding exhaust leak 99 Deville Y motor
  187. Is 235 too hot for a N*star on hilly roads?
  188. Spark Plugs ACDELCO or somthign els ?
  189. Good mechanics to fix head gasket in Oceanside, California area
  190. rough idle, only when in gear and brake on
  191. The first head gasket failure - 1 out of around 90 or so
  192. Tranny problems?
  193. how to install serpentine belt on 98 concours
  194. engine swap
  195. Why high fuel pressure?
  196. 1997 Northstar low speed hesitation and noise
  197. 2001 DeVille DHS / North Star motor losing power
  198. Air-Dam / Belly Splash Guard importance on cooling your N*
  199. Make Your Own Damn Motor Mount
  200. cooling fans inop p01660
  201. Hard shifting 1-2 Help!
  202. Fabricated Torque Strut for the 2000+ Northstar
  203. Horrible Engine Bucking 93 N* Allante
  204. 1998 Seville STS Performance Engine Build - STAGE I
  205. My pulley melted
  206. 01 Deville issues, no codes, no check engine light
  207. '96 Deville Coolant Change
  208. Overheating
  209. White smoke after changing starter (by removing intake manifold)
  210. No current codes but...
  211. N* Powered Camaro
  212. Strange coolant/heat issue 99 STS
  213. 1998 STS engine full of mystery sludge?!
  214. Rough idle-stumble on accel
  215. 95 Eldorado 4.6L Engine stalls
  216. Oil in intake manifold 4.6 1993
  217. 98 Deville Concours Preformance Exhaust???
  218. Engine year compatibility
  219. Sucessful Northstar head gasket repair in a bottle
  220. PCM 09354896 code DCHJ
  221. 1997 4.6 eldorado up hill over heats
  222. fuel injector ohms
  223. 93 sts fuel rail removal tools
  224. Air ride compressor
  225. Overheating??
  226. Codes P0122 and P1122...
  227. Motor mount replaced!! WTF!!!!!
  228. 1996 Seville STS O2 Sensor REMOVAL. CAN"T GET TO IT
  229. 96 Seville where's the 02 Oxygen Sensor Location?? PLEASE HELP WONT PASS EMISSIONS!!!
  230. Long road trips good for the Northstar?
  231. headgaskets a 2nd time?
  232. 97 eldorado w/180,000 miles, should i upgrade to a preformance coil?
  233. 94 eldorado 4.6 - no codes - stumbling/chugging - about to give up
  234. Car not turning over
  235. Codes 340 and 1016 + Fixed A.I.R. with new coil cartridge?
  236. Transmission issue
  237. spark plugs
  238. Yearly engine oil changes really necessary?
  239. Overheating problem
  240. maybe you all know more
  241. What Oil For Northstar Cams and Flat Tappets?
  242. 93 seville sts fuel rail
  243. rear main seal
  244. 93-99 Camshaft picture needed
  245. Seville 03 shaking problems after tune-up.
  246. is it the head gasket again?
  247. Problems with starting the engine
  248. Adding an Electric water Pump 95 Northstar
  249. 1995 northstar for sale *LOCKED*
  250. After WOT Car smells strong of sulfur , rotten eggs