View Full Version : Northstar Performance and Technical Discussion


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  1. confused
  2. Transmission Pressure Control Solenoid 4T80E
  3. Worn Engine Mounts?
  4. strip thread in block
  5. Cadillac techs, can we visit you?
  6. Why remove the strut brace?
  7. oil filter adapter housing broke!
  8. Head gasket
  9. '97 Northstar MAF location and codes
  10. 94 4.6L Northstar stalls after warmup
  11. P024 - current 93 n* 4t80e trans.
  12. Fuel line?/Vacuum Line?
  13. 1993 4T80-E Transmission
  14. 65k mile service
  15. 4.6L Northstar Rattle
  16. '93 North* Glitch out of hand!
  17. 94 Concours Engine Clatter
  18. Any idea what part this is..urgent
  19. 94 N* overheating and leaking -bubba move
  20. What does a missfire feel like?
  21. 94 Concours leaking oil question
  22. Coil Pack Replacement
  23. 4.0L Northstar, more related to vin Y or vin 9?
  24. Converting a Y engine to a 9 in 97 STS
  25. '93 North* RUBBER PARTS!!!!!
  26. Ignition Ground Voltage
  27. Water in the valley
  28. Head Gasket Repair
  29. Would it be worth it?.
  30. TC defeat in 1st gear
  31. Yellow anti-freeze ?. (sorry)
  32. Where is the radiator drain plug?
  33. 4.9L? How can I tell?
  34. My 2 day old SLS is giving me some strange problems
  35. oil overfilled
  36. Reseting the ECU and PCM
  37. Just bought a used 1999 Deville 4.6L
  38. WOT vs HG preservation
  39. 03 Deville Filter Adapter Oil Leak
  40. Towing a FWD N* vehicle on 4 wheels
  41. Coolant in my Oil
  42. Northstar Repair without inserts
  43. 93 eldo northstar engine missing
  44. Help me understand...
  45. 97 sts cadillac turns over, will not start
  46. It overheated again - any idea why?
  47. What should I do about this 1997 Eldorado ETC?
  48. 96' Seville HG Problems.. :-(
  49. 97 SLS hard to start when warm
  50. How does this engine sound?
  51. HELP ASAP Need to Identify Engine in 97 sts
  52. 2000+ Northstars look different??
  53. cylinder guide pin removal
  54. 03 seville pcv location
  55. Are 00+ northstars slower than <99??
  56. 4.6 Northstar doining very strange
  57. engine boggs when accelerator is stepped on quickly
  58. do you have to pull motor to do head gaskets, can it be done in the car
  59. Thinking about a K&N cold air intake...
  60. northstar drive shaft problems, probably damaged bearing
  61. question on my 95 deville concours. heat gone out and check engine light....
  62. Are Northstar Heads Rebuildable? Or disposable?
  63. Water pump tensioner catastrophic failure?
  64. My Northstar HG project
  65. She's runnin' HOT captain.....
  66. Intake manifold
  67. How Can I prevent a blown head gasket problem
  68. steam out of tailpipes
  69. 93 STS cooling system/h-gasket problem
  70. Hard shifting and codes 0719 and 0732?
  71. 2000 devile Northstar 4.6 running hot
  72. Repairs to a 4T80E after 600+ hp
  73. Water crossover re-assembly
  74. Electric fans arent coming on / overheating
  75. 94 sts key stuck wont start
  76. Overheating problem...
  77. Engine surges?
  78. Front Bank Misfire
  79. Drag tips or suggestions for 03 DTS.
  80. looking for plug wires
  81. Eldorado Dog Bones on a STS/DTS
  82. Permanent HG Repair - Give an old N* new life
  83. 1999 Eldorado engine whine
  84. Where is oil filter?
  85. 95 Eldorado stalling
  86. P0300 code....AGAIN!
  87. 2 northstars ?
  88. Smoke after shutdown... Classic N* oil leak issue?
  89. Heal-a-seal
  90. Northstar Cold idle Knock?
  91. intermittent issue with burning smell
  92. Update on Turbo 99STS
  93. Aurora 4.0 V8
  94. 97 SLS engine problem
  95. Car will not start, backfired smoke form under hood on pass. side
  96. LOW COOLANT warning
  97. A list of factory stock quarter mile times?
  98. Northstar engines are a joke
  99. Please help with eratic idle!!!!!!!!!!
  100. Volkswagen Northstar ????
  101. Air Fuel Ratio on Narrow-Band O2 Sensor
  102. Did I Post This Question in The Wrong Place?
  103. small coolent leak
  104. mechanical oil pressure gage sending unit location
  105. Fuel rail
  106. How to change Heater Core on 02' DHS
  107. Where is the PCM
  108. Two more codes ?
  109. 02' DHS overheating!!!!
  110. 2000 Deville Code P1860
  111. Head gasket repair "corpus christi, tx"
  112. OBD2 Scantool for Northstar Engine to monitor knock?
  113. Northstar Gas Mileage
  114. Help ASAP:will 96/97 power train exchange?
  115. Repair head gasket Or buy remanufactured eng
  116. 2000 STS Head gasket problem?
  117. 2001 STS motor mount?
  118. wrong alternator
  119. Another P1860/P0741 repair
  120. 2001 Seville Water pump?
  121. Information on P0741 & P1860. 1998+
  122. Philistines
  123. Opinions on N* nitrous use.
  124. 97 deville hard starting, no codes
  125. oil cooler
  126. Blown Head Gaskets?
  127. I need a water pump drive pulley please help
  128. Intake Backfire
  129. Dyno Run
  130. Replaced Engine 99 STS a few electrical issues!!!
  131. Drivetrain Efficiency
  132. What Gas Are You Using?
  133. pulled code pcm0443
  134. 05 sts v8 engine light
  135. Please Help P300
  136. Almost ready to go
  137. p0308 misfire, trying to find problem
  138. The use of Aftermarket reusable air filters
  139. Fuel pump :(
  140. Head gaskets X 2
  141. Long-term fuel trims up during deceleration
  142. Oil pressure after HG repair
  143. 240mph wooden car gets reversed flow NorthStar
  144. 98 sts stalling..aj..ranger...sub...help
  145. Water pump pulley disintegrating
  146. Regapping platinum plugs & best NA performance gap
  147. Head Gaskets Cause Coolent to Boil? And Repairs
  148. Engine swap
  149. Headgasket Vendor
  150. trans leak from a 4-80
  151. Loctite Red Gel REMOVAL!!!!!
  152. Service Emission System - No Acceleration
  153. Smoke
  154. 1996 Deville hard start and fuel pressure specs
  155. Doing my own head gasket
  156. 1997 cadillac deville performance?????
  157. 2005 STS with over 100k miles
  158. cadillac eldorado overheating but no oil in water
  159. 95 SLS w/ P076 Code - Trans pressure
  160. Where do you get Norms inserts?
  161. Engine heats up at idle (99 STS)
  162. Have two questions. Was looking around and found a leak.
  163. p1520 Trans Circuit
  164. Headgasket Fix for $1250
  165. Is it a head gasket?
  166. seriously clogged purge line! need help!
  167. Almost Overheating - is this Head Gasket ?
  168. Could Use Some Insight
  169. OBD Code E-119
  170. Deville Motor Swap 1997 to 1997 sts
  171. Took on my friend's LS1 *VID*
  172. 94 northstar cooling issue
  173. OIL FILTER/oil/AIR FILTER? What do you use on your N*?
  174. Time-sert kit
  175. 95 SLS Water Pump Removal Impact Wrench or Not?
  176. 2000 Deville Mechanical Issues *HELP*
  177. Can this be possible?
  178. looking for spark plugs
  179. need correct belt size to bypass ac comp on 97 concours
  180. DYI or NOT, Blown waterpump housing gasket
  181. Northstar 4.0 Aurora 97 interchangability
  182. Programmable ECU for STS 4.6L?
  183. Rough Idle Question For Ewill3rd
  184. Bought a Timesert kit on Ebay, what else do I need to install Norms inserts?
  185. loss of power overheating issues HELP
  186. What Anti-Freeze
  187. 50 Deville - Code = P0300 current
  188. New Owner/Member w/ n*star question
  189. P0300 - Timing Off
  190. intake gaskets
  191. Northstar 4.6 Coolant loss - but only under load
  192. 2000 deville or 1997 eldorado
  193. Northstar head gasket failures
  194. GM Top Engine Cleaner
  195. Coolent Temp
  196. Going to the track
  197. N* cylinder numbers
  198. Witnessed some component fail, what to do?
  199. Overhaeting Or Not or Maybe PLEASE HELP
  200. Non ACDelco Part?
  201. Electrical Problems With 94' Seville
  202. No HI cooling fan speed?
  203. Where to cut?? cradle bolt just spins
  204. engine ID
  205. Timing Chain Slack
  206. 2000 Deville Head gasket?
  207. 2000 Dts Front Engine Mount - Best Way To Change?
  208. coolant level deville 98
  209. Drag Race Calculator...
  210. engine swap pipe dreams
  211. Ingnition MAx Fuse burns out to stall 99 deville
  212. 98 sts what fits
  213. Northstar engine performance in my 01' DeVille DHS
  214. starter woes
  215. Intermittent spark loss on random coils 94' STS
  216. Disable the SIR
  217. Can you pull the front head with the engine in the car?
  218. Mechanics - Chicago area - Help
  219. Northstar Plenum Woes
  220. How to change pulley
  221. Engine to trans. bracket locations
  222. Is this an LT5
  223. 2001 Northstar in a 93 sts?
  224. no spark
  225. 1994 Cadillac STS
  226. Manifold or water pump causing overheating???
  227. Northstar crank sensor locations
  228. Quick engine swap question
  229. Solid Front Engine Mounts
  230. 98 deville no blower motor
  231. Still overheating
  232. Serpentine Belt
  233. couple of cooling sistem questions
  234. How many gallons Dex-Cool will I need.....
  235. oil can lite on and engine shuts down
  236. cat recomendations
  237. Therma Gasket Fixed My Head Leak
  238. Ignition Module Pin Out
  239. HG or paranoia?
  240. 2000 SLS keeps stalling
  241. another n* head gasket question
  242. Do you know what this part is?
  243. N* dissassembled engine found
  244. This Is Not a Joke
  245. My Rough Idle Story, So Far...
  246. 02 SLS running rough after pulling air box silencer
  247. 97 SLS N* Overheating quickly
  248. '95 STS Stuck in 3rd Gear
  249. 98 Deville non-functional engine cooler fan
  250. Post up your NORTHSTAR GAS MILEAGE (CTY/HWY) PLZ!