: HT4100 4.1, 4.5, 4.9



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  1. 1985 HT 4100 Cast Iron Block & Head???
  2. 93 Deville Idle Sticking
  3. Stuck with a HT4100? I have the solution!
  4. 4.9 problems
  5. Tranny Cooler Part Numbers:92 ETC
  6. 85 HT4100 Swap
  7. Engine knocking
  8. Oil leak (Bbob)
  9. Ht4100 Idle
  10. Any advice on a HT4100 while I'm fixing the timing chain/gears?
  11. dumbass in need of help
  12. HT4100 Idle speed (warmed up)?
  13. Transmission lags the downshifts + sometimes upshifts after high speed drive
  14. Changing Engine Coolant
  15. P085 ....... Idle Throttle Angle Too High
  16. serpantine belt problem, 92 deville
  17. Are You Sure Rotella Is good for the 4.9?
  18. antifreeze in oil please help bbob and all
  19. 89 STS torques to one side
  20. 88 eldorado 4.5 help please
  21. 4.9 water pump bolting question?
  22. 1992 Cadillac Sedan DeVille O2 Sensors
  23. 90 Eldo w/4.5 PROJECT CAR - Advice Desired
  24. fuel injector question
  25. It's the smog pump
  26. Removing/Reinstalling Accelerator Pedal
  27. Risks of Ethanol?
  28. 4.1 compression
  29. replaced water pump/wont start
  30. proper oil for 88 sedan deville
  31. Warmed up engine FLOWMASTER 40series DELTA FLOW clip
  32. Brake cleaner - does it miff the engine gaskets?
  33. 94 Deville 4.9L ...P030 and some other codes....
  34. New to the forum....
  35. Who sells a good CA legal catalytic conv. ?? - We have very strict Smog tests here.
  36. Are these holes in the airfilter housing supposed to have something... '84 HT4100 TBI
  37. New Deville Clips
  38. 84 cadillac seville chargeing problem
  39. 1992 sedan deville head gaskets?
  40. 92 Deville Starter heat shied
  41. 4.5 intake gasket
  42. VSS location?
  43. How do you Remove&Clean Throttle Body, engines too big to see back there.
  44. No More Poop On Coupe ! Yea !
  45. 88 eldo 4.5 running temp and code E027 ?'s
  46. 93 Seville radiator fan
  47. PO41 No Cam reference Signal - broke down on trip
  48. Is the exhaust layout identical per the 1983 and 1984 DeVille 4.1 V8
  49. Aftermarket Cat
  50. Why doesn't an '84 DeVille F'ING show up on most of the online catalogs?
  51. What's the most universal oil filter wrench you have used?
  52. 91' deville
  53. 90 deville water pump?
  54. time for a tune up.. whats involved.
  55. Oil Pressure Light just came on - 4.1 V-8!
  56. CAN you change oil filter withOUT draining oil pan?
  57. 83 coupe 4100 ( 4.1) injector problems
  58. Slow Battery Drain
  59. 4.5 liter misfiring on acceleration, rough idle
  60. HT4100 EGR schematics needed to figure out smog issue, BAD F'ING NEWS
  61. Change of Plans! I'm not supercharging anything...
  62. torque convertors for teh 4t60
  63. BARO on 4.9?
  64. Knocking/Rattling From Engine
  65. injector duty cycle
  66. Dangers of flsuhing HT4100 with motor Flush and Supertech oil.
  67. Fuel pressure
  68. Newbie needs help with 87 seville 4.1L
  69. Can A 4.1 Trans be Used in a Long?...
  70. anyone know????
  71. 4.1 wiring from distributor to plugs HELP ASAP
  72. 84 Eldorado 4.1 V8 (HT4100) "E" engine, M57 tranny, Noise from lower end
  73. remove power steering pulley
  74. coolant temperature
  75. GM Reliability Testing?
  76. 84 SDV RWD 4.1 Intake gasket
  77. Is single 3" exhaust too big for a 4.1L @ 200 HP?
  78. Fuel Injector Replacement
  79. HELP!! 91 Eldo stalling problem
  80. used E C M ... from junk yard
  81. How much booooooooost PSI can these 4.1's take? What gives in under pressure?
  82. Bad ECU?(BBOB)
  83. WHAT THE **** IS EVERYONE's FAVORITE MUFFLER/CAT Pipe SETUP?
  84. 4.9 oil pump in 4.5?
  85. does ECU prevent engine braking
  86. What The Hell Is That Thing!?!?!?!
  87. Cleaning and tune up junk on an 88 4.5L deville
  88. 1990 Deville won't start HELP
  89. What kind of Exhaust systems do the 84 SDV 4.1Liter motors like to breath through?
  90. Took a Vid in my 91 Deville
  91. Knocking in the 4.9
  92. 94 deville questions
  93. Best way to flush system (84 HT4100 SDV)
  94. Info on GM Goodwrench replacement engine, HT4100
  95. And Yet Another ISC Motor Question
  96. Car has no spark
  97. idle rpm
  98. Oil leak
  99. 1990 4.5l air system problem
  100. Oxygen Sensor Broke?
  101. plug wires??
  102. isc motor question
  103. HT 4100 Replacement Source?
  104. 4.5L Valve Pinging / Clattering
  105. problem while coasting
  106. Rough Idle, 87 4.1 Eldorado
  107. What water??
  108. throwing my belt off
  109. Which models come with the 4.9 V8?
  110. Rough running 92 Eldo
  111. 4100 D F I injector problems... looking for solutions
  112. 4.9 codes
  113. Best way to clean my throttle body?
  114. 85 Eldorado 4.1 help!!
  115. Engine Oil Questions - Bboby
  116. Finally. . .Solved Intake Backfire
  117. Whats The AVG MPG Readout for this forum
  118. Engine Idles 10 Seconds AFTER Ignition Shut-Off!!
  119. Weird 4.9 noise (not in archives)
  120. what kinda maintenance should i do
  121. Bbob...Whats the difference!?!
  122. Grounds Anyone?
  123. Ht4100 Backfires Out Of Fuel Injection
  124. Check Fuel Pump Amps draw ? Bob ?
  125. 90 Deville code help
  126. Starts hard when it gets hot
  127. Gas milage back, more power, more smooth..
  128. Rpm/idle Problems
  129. Oil Filter Capacity?
  130. Getting a Attitude Again-missing
  131. Is There a good quick fix for oil consumption?
  132. looking for opinions on best oil/synthetic to use in a 4.1
  133. I Don't Even Know Where To Start
  134. 93 Deville Experts Please e26 239 e47 e97 e98 f32 stalls
  135. Fastest 4.9 Ever?
  136. 93 Sedan 4.9 F32, archives no help
  137. Change spark PLugs
  138. good compression
  139. Where on the Web can I Find AC Delco Spark Plugs Cheap
  140. Changed Oil Pan Gasket, Still Leaking (4.1)
  141. Cam sensor replacement?
  142. Oil drain plug stuck on 4.5!
  143. i want to make sure
  144. Looking for used v-8 intake
  145. Fuel Economy and Engine Power
  146. 85 seville transmission
  147. Rotella coolant.
  148. Noise Under Hood When Turning Ignition On and Off
  149. Coolant Pellets? How Many?
  150. 1990 bcm code e-47
  151. please help
  152. 4-9 Fuel Pump Psi
  153. Engine Knock
  154. help my overheat um i think
  155. Is this the same knock as the 4.9 knock? It is an HT4100
  156. 4.9 valve cover
  157. Porting on HT4100's
  158. 4.5L Idle Problem Solved!! Thanks, bbobynski
  159. 84 deville died, won't restart ht4100
  160. surging power
  161. Air Management System Problem
  162. '85 Deville running rich
  163. 4.9 60k knock gone!!!!!!!!!!!!!!!!!
  164. Install Separate Thermostatic Fan Control?
  165. 4.1 Eldorado Oil Pan Gasket Change; MAJOR PAIN!
  166. Anyone Need a HT 4100
  167. questions on 4.9l v8
  168. '92 4.9 Stalling after transmission rebuild
  169. Fuel Injectors 94 Deville 4.9L
  170. 4.9L compatable with small block???
  171. 92 seville performance help
  172. Bbob- Open Loop Better Than Closed??
  173. 86 Seville 4.1 advice re removal of water pump
  174. GM parts vs Aftermarket- HT4100
  175. Where's the ALDL on my 88 Deville?
  176. Tranny Woes
  177. 4.9 with 60K knocking, please help!!!!!!!!!!!
  178. ISC Motor &TPS/E30 code
  179. To ILLUMINA!!! RE Performance Parts for 4.9
  180. Transmission
  181. Cleaned egr tubes
  182. 95 deville blown head gasket
  183. Question About Changing Water Pump
  184. Purchased 1984 Sedan Deville
  185. stock 4.9 intake to allante intake comparison
  186. What kind of problems do you get if you have a F32 code
  187. Amsoil for 4.9
  188. 93 weirdo miss
  189. Mixing oils...
  190. What Is A PCM?
  191. What is a BCM?
  192. Redline/Tachometer
  193. HT4100 "Base Timing Mode"
  194. A few 4.x questions
  195. 4.x dyno and comparison questions
  196. '90 Deville 4.5 idle problems
  197. 200R4 slipping real bad
  198. 88 Deville...E30 & EE30 code
  199. 4 prong spark plugs on 4.5
  200. Idle Speed Control Unit
  201. Does Anyone have F codes for a 93 deville
  202. thermostat
  203. Computer/wiring on 4.1L to 4.5L swap
  204. 1988 Deville Fast idle problems 4.5L
  205. 4.5--->4.9? (maybe more)
  206. HT4100 0-60 times!
  207. tranny slipping and e39 vcc
  208. Cheap HPs?
  209. Help!!!My caddy flunked the emmissions test
  210. 92 Help!!!
  211. Left or Right Bank Fuel Imbalance
  212. Engine Misses when cold
  213. The "4.9 liter turbocharger, stage 1" thread.
  214. code19
  215. Code E30 ( NO DASH!!! )
  216. 93 DeVille failed IL CO and HC emissions - need help
  217. Water
  218. OK the 4.9 ECU mods thread ,lets go!
  219. Need information on an engine rebuild
  220. how do i use the codes
  221. intake question
  222. advanced timing
  223. Another one knockin
  224. egr valve
  225. 4.9 engine idle speed...
  226. Blown Head Gasket maybe?????
  227. Ht4100 Flowmaster Sound Clip!!!!!!!
  228. Lucas oil treatment?
  229. Piston Rings
  230. Startup problem
  231. Dumb Tool Question?
  232. Intake on a Deville...
  233. now what ?
  234. EDAHALL! How do i post sound clips of my FLOWMASTER 40 SERIES delta with the HT4100
  235. Delco vs. Others
  236. Needle in a haystack E53
  237. Will a HT4100 go into an 88 Deville?
  238. A little oil here and a Little oil there
  239. How do you advance timing?
  240. 4.9L '92 Knocking...or missing, help!
  241. Ticking
  242. Rebuilding an HT4100
  243. Engine Swap
  244. Timing Questions...
  245. '90 DeVille 4.5L "hunts" for curb idle
  246. What is most likely source of oil leak?
  247. fuel system??
  248. collectors,bbob anyone,long term storage
  249. Trouble with O2 Sensor
  250. Oil Light