: HT4100 4.1, 4.5, 4.9



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  1. Converter Inlet Size??
  2. throttle switch short
  3. 4100 sleeve selection (rehash?)
  4. Oil change and now the light wont go out.
  5. Is it hard to change the coolant on the 4.1?
  6. Performance parts for caddy 4.9 engine?
  7. 4.9 Custom Air intake
  8. Radiator cap PSI for 4.9
  9. Timing 94 Deville
  10. rough running after warm up
  11. Nitrous in 4.9
  12. Stripped Head Bolt Threads
  13. 83 coupe air pump
  14. Removing cat-converter...good idea or no?
  15. URGENT!! Muffler?
  16. Finally summers here, first problem..brakes stuck
  17. leaking deville 4100 need bandaid
  18. Is 104C too hot for a 4.9L 1994 Deville?
  19. Is There Such A Thing As A Starter Motor Overheating?
  20. Illumina /Bbob/Nodh and other Tech types
  21. Possible Seville Engine Swap
  22. E39 Code
  23. 4.5 Performance?
  24. ht4100 bars leaks crap help
  25. 1990 4.5 needs new injectors
  26. My buddy thought the 4.9 was like 250hp!!
  27. Engine STILL missing (intermittant), tons of work done so far--HELP!!!
  28. rumble in the 'ville
  29. My Caddy won't start.
  30. Code 19....1984 DeVille
  31. Longevity of a 4.9L Is 150K too many miles?
  32. What are the common problem areas with 4.9Ls on 1994 Deville?
  33. Knock
  34. 4.9 straightpipes
  35. how common are coolant leaks in 4.9
  36. transmission trouble
  37. 1985 HT 4100 Cast Iron Block & Head???
  38. 93 Deville Idle Sticking
  39. Stuck with a HT4100? I have the solution!
  40. 4.9 problems
  41. Tranny Cooler Part Numbers:92 ETC
  42. 85 HT4100 Swap
  43. Engine knocking
  44. Oil leak (Bbob)
  45. Ht4100 Idle
  46. Any advice on a HT4100 while I'm fixing the timing chain/gears?
  47. dumbass in need of help
  48. HT4100 Idle speed (warmed up)?
  49. Transmission lags the downshifts + sometimes upshifts after high speed drive
  50. Changing Engine Coolant
  51. P085 ....... Idle Throttle Angle Too High
  52. serpantine belt problem, 92 deville
  53. Are You Sure Rotella Is good for the 4.9?
  54. antifreeze in oil please help bbob and all
  55. 89 STS torques to one side
  56. 88 eldorado 4.5 help please
  57. 4.9 water pump bolting question?
  58. 1992 Cadillac Sedan DeVille O2 Sensors
  59. 90 Eldo w/4.5 PROJECT CAR - Advice Desired
  60. fuel injector question
  61. It's the smog pump
  62. Removing/Reinstalling Accelerator Pedal
  63. Risks of Ethanol?
  64. 4.1 compression
  65. replaced water pump/wont start
  66. proper oil for 88 sedan deville
  67. Warmed up engine FLOWMASTER 40series DELTA FLOW clip
  68. Brake cleaner - does it miff the engine gaskets?
  69. 94 Deville 4.9L ...P030 and some other codes....
  70. New to the forum....
  71. Who sells a good CA legal catalytic conv. ?? - We have very strict Smog tests here.
  72. Are these holes in the airfilter housing supposed to have something... '84 HT4100 TBI
  73. New Deville Clips
  74. 84 cadillac seville chargeing problem
  75. 1992 sedan deville head gaskets?
  76. 92 Deville Starter heat shied
  77. 4.5 intake gasket
  78. VSS location?
  79. How do you Remove&Clean Throttle Body, engines too big to see back there.
  80. No More Poop On Coupe ! Yea !
  81. 88 eldo 4.5 running temp and code E027 ?'s
  82. 93 Seville radiator fan
  83. PO41 No Cam reference Signal - broke down on trip
  84. Is the exhaust layout identical per the 1983 and 1984 DeVille 4.1 V8
  85. Aftermarket Cat
  86. Why doesn't an '84 DeVille F'ING show up on most of the online catalogs?
  87. What's the most universal oil filter wrench you have used?
  88. 91' deville
  89. 90 deville water pump?
  90. time for a tune up.. whats involved.
  91. Oil Pressure Light just came on - 4.1 V-8!
  92. CAN you change oil filter withOUT draining oil pan?
  93. 83 coupe 4100 ( 4.1) injector problems
  94. Slow Battery Drain
  95. 4.5 liter misfiring on acceleration, rough idle
  96. HT4100 EGR schematics needed to figure out smog issue, BAD F'ING NEWS
  97. Change of Plans! I'm not supercharging anything...
  98. torque convertors for teh 4t60
  99. BARO on 4.9?
  100. Knocking/Rattling From Engine
  101. injector duty cycle
  102. Dangers of flsuhing HT4100 with motor Flush and Supertech oil.
  103. Fuel pressure
  104. Newbie needs help with 87 seville 4.1L
  105. Can A 4.1 Trans be Used in a Long?...
  106. anyone know????
  107. 4.1 wiring from distributor to plugs HELP ASAP
  108. 84 Eldorado 4.1 V8 (HT4100) "E" engine, M57 tranny, Noise from lower end
  109. remove power steering pulley
  110. coolant temperature
  111. GM Reliability Testing?
  112. 84 SDV RWD 4.1 Intake gasket
  113. Is single 3" exhaust too big for a 4.1L @ 200 HP?
  114. Fuel Injector Replacement
  115. HELP!! 91 Eldo stalling problem
  116. used E C M ... from junk yard
  117. How much booooooooost PSI can these 4.1's take? What gives in under pressure?
  118. Bad ECU?(BBOB)
  119. WHAT THE **** IS EVERYONE's FAVORITE MUFFLER/CAT Pipe SETUP?
  120. 4.9 oil pump in 4.5?
  121. does ECU prevent engine braking
  122. What The Hell Is That Thing!?!?!?!
  123. Cleaning and tune up junk on an 88 4.5L deville
  124. 1990 Deville won't start HELP
  125. What kind of Exhaust systems do the 84 SDV 4.1Liter motors like to breath through?
  126. Took a Vid in my 91 Deville
  127. Knocking in the 4.9
  128. 94 deville questions
  129. Best way to flush system (84 HT4100 SDV)
  130. Info on GM Goodwrench replacement engine, HT4100
  131. And Yet Another ISC Motor Question
  132. Car has no spark
  133. idle rpm
  134. Oil leak
  135. 1990 4.5l air system problem
  136. Oxygen Sensor Broke?
  137. plug wires??
  138. isc motor question
  139. HT 4100 Replacement Source?
  140. 4.5L Valve Pinging / Clattering
  141. problem while coasting
  142. Rough Idle, 87 4.1 Eldorado
  143. What water??
  144. throwing my belt off
  145. Which models come with the 4.9 V8?
  146. Rough running 92 Eldo
  147. 4100 D F I injector problems... looking for solutions
  148. 4.9 codes
  149. Best way to clean my throttle body?
  150. 85 Eldorado 4.1 help!!
  151. Engine Oil Questions - Bboby
  152. Finally. . .Solved Intake Backfire
  153. Whats The AVG MPG Readout for this forum
  154. Engine Idles 10 Seconds AFTER Ignition Shut-Off!!
  155. Weird 4.9 noise (not in archives)
  156. what kinda maintenance should i do
  157. Bbob...Whats the difference!?!
  158. Grounds Anyone?
  159. Ht4100 Backfires Out Of Fuel Injection
  160. Check Fuel Pump Amps draw ? Bob ?
  161. 90 Deville code help
  162. Starts hard when it gets hot
  163. Gas milage back, more power, more smooth..
  164. Rpm/idle Problems
  165. Oil Filter Capacity?
  166. Getting a Attitude Again-missing
  167. Is There a good quick fix for oil consumption?
  168. looking for opinions on best oil/synthetic to use in a 4.1
  169. I Don't Even Know Where To Start
  170. 93 Deville Experts Please e26 239 e47 e97 e98 f32 stalls
  171. Fastest 4.9 Ever?
  172. 93 Sedan 4.9 F32, archives no help
  173. Change spark PLugs
  174. good compression
  175. Where on the Web can I Find AC Delco Spark Plugs Cheap
  176. Changed Oil Pan Gasket, Still Leaking (4.1)
  177. Cam sensor replacement?
  178. Oil drain plug stuck on 4.5!
  179. i want to make sure
  180. Looking for used v-8 intake
  181. Fuel Economy and Engine Power
  182. 85 seville transmission
  183. Rotella coolant.
  184. Noise Under Hood When Turning Ignition On and Off
  185. Coolant Pellets? How Many?
  186. 1990 bcm code e-47
  187. please help
  188. 4-9 Fuel Pump Psi
  189. Engine Knock
  190. help my overheat um i think
  191. Is this the same knock as the 4.9 knock? It is an HT4100
  192. 4.9 valve cover
  193. Porting on HT4100's
  194. 4.5L Idle Problem Solved!! Thanks, bbobynski
  195. 84 deville died, won't restart ht4100
  196. surging power
  197. Air Management System Problem
  198. '85 Deville running rich
  199. 4.9 60k knock gone!!!!!!!!!!!!!!!!!
  200. Install Separate Thermostatic Fan Control?
  201. 4.1 Eldorado Oil Pan Gasket Change; MAJOR PAIN!
  202. Anyone Need a HT 4100
  203. questions on 4.9l v8
  204. '92 4.9 Stalling after transmission rebuild
  205. Fuel Injectors 94 Deville 4.9L
  206. 4.9L compatable with small block???
  207. 92 seville performance help
  208. Bbob- Open Loop Better Than Closed??
  209. 86 Seville 4.1 advice re removal of water pump
  210. GM parts vs Aftermarket- HT4100
  211. Where's the ALDL on my 88 Deville?
  212. Tranny Woes
  213. 4.9 with 60K knocking, please help!!!!!!!!!!!
  214. ISC Motor &TPS/E30 code
  215. To ILLUMINA!!! RE Performance Parts for 4.9
  216. Transmission
  217. Cleaned egr tubes
  218. 95 deville blown head gasket
  219. Question About Changing Water Pump
  220. Purchased 1984 Sedan Deville
  221. stock 4.9 intake to allante intake comparison
  222. What kind of problems do you get if you have a F32 code
  223. Amsoil for 4.9
  224. 93 weirdo miss
  225. Mixing oils...
  226. What Is A PCM?
  227. What is a BCM?
  228. Redline/Tachometer
  229. HT4100 "Base Timing Mode"
  230. A few 4.x questions
  231. 4.x dyno and comparison questions
  232. '90 Deville 4.5 idle problems
  233. 200R4 slipping real bad
  234. 88 Deville...E30 & EE30 code
  235. 4 prong spark plugs on 4.5
  236. Idle Speed Control Unit
  237. Does Anyone have F codes for a 93 deville
  238. thermostat
  239. Computer/wiring on 4.1L to 4.5L swap
  240. 1988 Deville Fast idle problems 4.5L
  241. 4.5--->4.9? (maybe more)
  242. HT4100 0-60 times!
  243. tranny slipping and e39 vcc
  244. Cheap HPs?
  245. Help!!!My caddy flunked the emmissions test
  246. 92 Help!!!
  247. Left or Right Bank Fuel Imbalance
  248. Engine Misses when cold
  249. The "4.9 liter turbocharger, stage 1" thread.
  250. code19