: HT4100 4.1, 4.5, 4.9



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