: HT4100 4.1, 4.5, 4.9



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  1. anyone know????
  2. 4.1 wiring from distributor to plugs HELP ASAP
  3. 84 Eldorado 4.1 V8 (HT4100) "E" engine, M57 tranny, Noise from lower end
  4. remove power steering pulley
  5. coolant temperature
  6. GM Reliability Testing?
  7. 84 SDV RWD 4.1 Intake gasket
  8. Is single 3" exhaust too big for a 4.1L @ 200 HP?
  9. Fuel Injector Replacement
  10. HELP!! 91 Eldo stalling problem
  11. used E C M ... from junk yard
  12. How much booooooooost PSI can these 4.1's take? What gives in under pressure?
  13. Bad ECU?(BBOB)
  14. WHAT THE **** IS EVERYONE's FAVORITE MUFFLER/CAT Pipe SETUP?
  15. 4.9 oil pump in 4.5?
  16. does ECU prevent engine braking
  17. What The Hell Is That Thing!?!?!?!
  18. Cleaning and tune up junk on an 88 4.5L deville
  19. 1990 Deville won't start HELP
  20. What kind of Exhaust systems do the 84 SDV 4.1Liter motors like to breath through?
  21. Took a Vid in my 91 Deville
  22. Knocking in the 4.9
  23. 94 deville questions
  24. Best way to flush system (84 HT4100 SDV)
  25. Info on GM Goodwrench replacement engine, HT4100
  26. And Yet Another ISC Motor Question
  27. Car has no spark
  28. idle rpm
  29. Oil leak
  30. 1990 4.5l air system problem
  31. Oxygen Sensor Broke?
  32. plug wires??
  33. isc motor question
  34. HT 4100 Replacement Source?
  35. 4.5L Valve Pinging / Clattering
  36. problem while coasting
  37. Rough Idle, 87 4.1 Eldorado
  38. What water??
  39. throwing my belt off
  40. Which models come with the 4.9 V8?
  41. Rough running 92 Eldo
  42. 4100 D F I injector problems... looking for solutions
  43. 4.9 codes
  44. Best way to clean my throttle body?
  45. 85 Eldorado 4.1 help!!
  46. Engine Oil Questions - Bboby
  47. Finally. . .Solved Intake Backfire
  48. Whats The AVG MPG Readout for this forum
  49. Engine Idles 10 Seconds AFTER Ignition Shut-Off!!
  50. Weird 4.9 noise (not in archives)
  51. what kinda maintenance should i do
  52. Bbob...Whats the difference!?!
  53. Grounds Anyone?
  54. Ht4100 Backfires Out Of Fuel Injection
  55. Check Fuel Pump Amps draw ? Bob ?
  56. 90 Deville code help
  57. Starts hard when it gets hot
  58. Gas milage back, more power, more smooth..
  59. Rpm/idle Problems
  60. Oil Filter Capacity?
  61. Getting a Attitude Again-missing
  62. Is There a good quick fix for oil consumption?
  63. looking for opinions on best oil/synthetic to use in a 4.1
  64. I Don't Even Know Where To Start
  65. 93 Deville Experts Please e26 239 e47 e97 e98 f32 stalls
  66. Fastest 4.9 Ever?
  67. 93 Sedan 4.9 F32, archives no help
  68. Change spark PLugs
  69. good compression
  70. Where on the Web can I Find AC Delco Spark Plugs Cheap
  71. Changed Oil Pan Gasket, Still Leaking (4.1)
  72. Cam sensor replacement?
  73. Oil drain plug stuck on 4.5!
  74. i want to make sure
  75. Looking for used v-8 intake
  76. Fuel Economy and Engine Power
  77. 85 seville transmission
  78. Rotella coolant.
  79. Noise Under Hood When Turning Ignition On and Off
  80. Coolant Pellets? How Many?
  81. 1990 bcm code e-47
  82. please help
  83. 4-9 Fuel Pump Psi
  84. Engine Knock
  85. help my overheat um i think
  86. Is this the same knock as the 4.9 knock? It is an HT4100
  87. 4.9 valve cover
  88. Porting on HT4100's
  89. 4.5L Idle Problem Solved!! Thanks, bbobynski
  90. 84 deville died, won't restart ht4100
  91. surging power
  92. Air Management System Problem
  93. '85 Deville running rich
  94. 4.9 60k knock gone!!!!!!!!!!!!!!!!!
  95. Install Separate Thermostatic Fan Control?
  96. 4.1 Eldorado Oil Pan Gasket Change; MAJOR PAIN!
  97. Anyone Need a HT 4100
  98. questions on 4.9l v8
  99. '92 4.9 Stalling after transmission rebuild
  100. Fuel Injectors 94 Deville 4.9L
  101. 4.9L compatable with small block???
  102. 92 seville performance help
  103. Bbob- Open Loop Better Than Closed??
  104. 86 Seville 4.1 advice re removal of water pump
  105. GM parts vs Aftermarket- HT4100
  106. Where's the ALDL on my 88 Deville?
  107. Tranny Woes
  108. 4.9 with 60K knocking, please help!!!!!!!!!!!
  109. ISC Motor &TPS/E30 code
  110. To ILLUMINA!!! RE Performance Parts for 4.9
  111. Transmission
  112. Cleaned egr tubes
  113. 95 deville blown head gasket
  114. Question About Changing Water Pump
  115. Purchased 1984 Sedan Deville
  116. stock 4.9 intake to allante intake comparison
  117. What kind of problems do you get if you have a F32 code
  118. Amsoil for 4.9
  119. 93 weirdo miss
  120. Mixing oils...
  121. What Is A PCM?
  122. What is a BCM?
  123. Redline/Tachometer
  124. HT4100 "Base Timing Mode"
  125. A few 4.x questions
  126. 4.x dyno and comparison questions
  127. '90 Deville 4.5 idle problems
  128. 200R4 slipping real bad
  129. 88 Deville...E30 & EE30 code
  130. 4 prong spark plugs on 4.5
  131. Idle Speed Control Unit
  132. Does Anyone have F codes for a 93 deville
  133. thermostat
  134. Computer/wiring on 4.1L to 4.5L swap
  135. 1988 Deville Fast idle problems 4.5L
  136. 4.5--->4.9? (maybe more)
  137. HT4100 0-60 times!
  138. tranny slipping and e39 vcc
  139. Cheap HPs?
  140. Help!!!My caddy flunked the emmissions test
  141. 92 Help!!!
  142. Left or Right Bank Fuel Imbalance
  143. Engine Misses when cold
  144. The "4.9 liter turbocharger, stage 1" thread.
  145. code19
  146. Code E30 ( NO DASH!!! )
  147. 93 DeVille failed IL CO and HC emissions - need help
  148. Water
  149. OK the 4.9 ECU mods thread ,lets go!
  150. Need information on an engine rebuild
  151. how do i use the codes
  152. intake question
  153. advanced timing
  154. Another one knockin
  155. egr valve
  156. 4.9 engine idle speed...
  157. Blown Head Gasket maybe?????
  158. Ht4100 Flowmaster Sound Clip!!!!!!!
  159. Lucas oil treatment?
  160. Piston Rings
  161. Startup problem
  162. Dumb Tool Question?
  163. Intake on a Deville...
  164. now what ?
  165. EDAHALL! How do i post sound clips of my FLOWMASTER 40 SERIES delta with the HT4100
  166. Delco vs. Others
  167. Needle in a haystack E53
  168. Will a HT4100 go into an 88 Deville?
  169. A little oil here and a Little oil there
  170. How do you advance timing?
  171. 4.9L '92 Knocking...or missing, help!
  172. Ticking
  173. Rebuilding an HT4100
  174. Engine Swap
  175. Timing Questions...
  176. '90 DeVille 4.5L "hunts" for curb idle
  177. What is most likely source of oil leak?
  178. fuel system??
  179. collectors,bbob anyone,long term storage
  180. Trouble with O2 Sensor
  181. Oil Light
  182. Engine Oil Additive to stop leaks?!?
  183. Got a Reply! on HT4100 TO 4500 Conversion!
  184. Performance Mufflers for 4.9??
  185. Mobil 1 Extended Performance? BBob!
  186. Code 33 Help!!!!
  187. Engine Idle and "almost" stalling problems
  188. Boosting HT4100 Performance
  189. Benefit of using higher mileage vehicle oil?
  190. Exhaust Condensation
  191. bad throttle response
  192. timing newbbb
  193. Does it ever Stop!!!Tuned up and Tuned out
  194. Engine miss at highway speeds.
  195. Mind boggler engine noise
  196. 91 4.9 Excessive Fuel Consumption
  197. 4.5 tbi- performance stuff??
  198. new to me 85 coupe Deville
  199. HELP! 1990 seville shifts to 3rd and freewheels
  200. Engine reliability?
  201. Rough Idle and Missing...
  202. 1992 DeVille Misfiring, or something.
  203. Bad computer? Maybe
  204. air pump to fan to crunk v belt
  205. Can 4.1 be replaced with 305 fuel Injected?
  206. AMAZING fix for hesitation, bad milage
  207. Issues with vacuum lines, Battery light, all in this issue of the 2dfx PMS Thread!
  208. coolant temp light???
  209. 4.9 Fuel Filter clogging...
  210. cadillac eldorado 1991 4.9
  211. ISC Unpluged , wont idle
  212. Loose EGR tube
  213. HT4100 swap. 4.5 or 4.9?
  214. Typical Driveability Problem - 90 Deville
  215. Engine Fire!!! Why Me???
  216. dieseling HT4100....
  217. '82 Eldo Engine dying out, Backfiring through throttle body--Bbobynski please help!!!
  218. intermittent problemn
  219. Sparkplugs
  220. Whats The Best Oil for the HT4100???
  221. Need Help
  222. car running rough now
  223. my baby is sick again , why ??????
  224. Eldorado 4.1 motor problem
  225. Minor tune up
  226. '82 vs. '83 Eldo ECM--ARE THEY INTERCHANGEABLE?!? HELP!!!!
  227. Stupid question for smart people.
  228. Will 4.5 exhaust manifolds fit the HT4100?
  229. '85 eldo 4.1 head leak
  230. OIL Leak??????
  231. 95 deville temp.
  232. 3 questions for all you experts.
  233. 1986 4.1 rebuiled upgrades for more reliability.
  234. Idle Relearn Debate
  235. Fuel Filter Location - 85 Deville (Front Wheel)
  236. HT4100 FLOWMASTER 40series delta flow sound clip
  237. 85 Deville 4100 - Problems Galore
  238. Change Oil Light
  239. compatibility part 2
  240. Please REad need answer ASAP
  241. READ THIS ONE! \/\/ high idle
  242. 90 Deville-surging, missing, after it is warmed up
  243. ECM killing the Injectors?
  244. Someone tell me what a 'transaxle range switch' is!
  245. Electrical problem. Car won't start.
  246. my baby is sick and wont get better :(
  247. Thinking about replacing the 4.9L
  248. Accel Fuel Injectors
  249. I have 2 questions.
  250. Subtle rattling noise possibly from transmission