: HT4100 4.1, 4.5, 4.9



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  1. throwing my belt off
  2. Which models come with the 4.9 V8?
  3. Rough running 92 Eldo
  4. 4100 D F I injector problems... looking for solutions
  5. 4.9 codes
  6. Best way to clean my throttle body?
  7. 85 Eldorado 4.1 help!!
  8. Engine Oil Questions - Bboby
  9. Finally. . .Solved Intake Backfire
  10. Whats The AVG MPG Readout for this forum
  11. Engine Idles 10 Seconds AFTER Ignition Shut-Off!!
  12. Weird 4.9 noise (not in archives)
  13. what kinda maintenance should i do
  14. Bbob...Whats the difference!?!
  15. Grounds Anyone?
  16. Ht4100 Backfires Out Of Fuel Injection
  17. Check Fuel Pump Amps draw ? Bob ?
  18. 90 Deville code help
  19. Starts hard when it gets hot
  20. Gas milage back, more power, more smooth..
  21. Rpm/idle Problems
  22. Oil Filter Capacity?
  23. Getting a Attitude Again-missing
  24. Is There a good quick fix for oil consumption?
  25. looking for opinions on best oil/synthetic to use in a 4.1
  26. I Don't Even Know Where To Start
  27. 93 Deville Experts Please e26 239 e47 e97 e98 f32 stalls
  28. Fastest 4.9 Ever?
  29. 93 Sedan 4.9 F32, archives no help
  30. Change spark PLugs
  31. good compression
  32. Where on the Web can I Find AC Delco Spark Plugs Cheap
  33. Changed Oil Pan Gasket, Still Leaking (4.1)
  34. Cam sensor replacement?
  35. Oil drain plug stuck on 4.5!
  36. i want to make sure
  37. Looking for used v-8 intake
  38. Fuel Economy and Engine Power
  39. 85 seville transmission
  40. Rotella coolant.
  41. Noise Under Hood When Turning Ignition On and Off
  42. Coolant Pellets? How Many?
  43. 1990 bcm code e-47
  44. please help
  45. 4-9 Fuel Pump Psi
  46. Engine Knock
  47. help my overheat um i think
  48. Is this the same knock as the 4.9 knock? It is an HT4100
  49. 4.9 valve cover
  50. Porting on HT4100's
  51. 4.5L Idle Problem Solved!! Thanks, bbobynski
  52. 84 deville died, won't restart ht4100
  53. surging power
  54. Air Management System Problem
  55. '85 Deville running rich
  56. 4.9 60k knock gone!!!!!!!!!!!!!!!!!
  57. Install Separate Thermostatic Fan Control?
  58. 4.1 Eldorado Oil Pan Gasket Change; MAJOR PAIN!
  59. Anyone Need a HT 4100
  60. questions on 4.9l v8
  61. '92 4.9 Stalling after transmission rebuild
  62. Fuel Injectors 94 Deville 4.9L
  63. 4.9L compatable with small block???
  64. 92 seville performance help
  65. Bbob- Open Loop Better Than Closed??
  66. 86 Seville 4.1 advice re removal of water pump
  67. GM parts vs Aftermarket- HT4100
  68. Where's the ALDL on my 88 Deville?
  69. Tranny Woes
  70. 4.9 with 60K knocking, please help!!!!!!!!!!!
  71. ISC Motor &TPS/E30 code
  72. To ILLUMINA!!! RE Performance Parts for 4.9
  73. Transmission
  74. Cleaned egr tubes
  75. 95 deville blown head gasket
  76. Question About Changing Water Pump
  77. Purchased 1984 Sedan Deville
  78. stock 4.9 intake to allante intake comparison
  79. What kind of problems do you get if you have a F32 code
  80. Amsoil for 4.9
  81. 93 weirdo miss
  82. Mixing oils...
  83. What Is A PCM?
  84. What is a BCM?
  85. Redline/Tachometer
  86. HT4100 "Base Timing Mode"
  87. A few 4.x questions
  88. 4.x dyno and comparison questions
  89. '90 Deville 4.5 idle problems
  90. 200R4 slipping real bad
  91. 88 Deville...E30 & EE30 code
  92. 4 prong spark plugs on 4.5
  93. Idle Speed Control Unit
  94. Does Anyone have F codes for a 93 deville
  95. thermostat
  96. Computer/wiring on 4.1L to 4.5L swap
  97. 1988 Deville Fast idle problems 4.5L
  98. 4.5--->4.9? (maybe more)
  99. HT4100 0-60 times!
  100. tranny slipping and e39 vcc
  101. Cheap HPs?
  102. Help!!!My caddy flunked the emmissions test
  103. 92 Help!!!
  104. Left or Right Bank Fuel Imbalance
  105. Engine Misses when cold
  106. The "4.9 liter turbocharger, stage 1" thread.
  107. code19
  108. Code E30 ( NO DASH!!! )
  109. 93 DeVille failed IL CO and HC emissions - need help
  110. Water
  111. OK the 4.9 ECU mods thread ,lets go!
  112. Need information on an engine rebuild
  113. how do i use the codes
  114. intake question
  115. advanced timing
  116. Another one knockin
  117. egr valve
  118. 4.9 engine idle speed...
  119. Blown Head Gasket maybe?????
  120. Ht4100 Flowmaster Sound Clip!!!!!!!
  121. Lucas oil treatment?
  122. Piston Rings
  123. Startup problem
  124. Dumb Tool Question?
  125. Intake on a Deville...
  126. now what ?
  127. EDAHALL! How do i post sound clips of my FLOWMASTER 40 SERIES delta with the HT4100
  128. Delco vs. Others
  129. Needle in a haystack E53
  130. Will a HT4100 go into an 88 Deville?
  131. A little oil here and a Little oil there
  132. How do you advance timing?
  133. 4.9L '92 Knocking...or missing, help!
  134. Ticking
  135. Rebuilding an HT4100
  136. Engine Swap
  137. Timing Questions...
  138. '90 DeVille 4.5L "hunts" for curb idle
  139. What is most likely source of oil leak?
  140. fuel system??
  141. collectors,bbob anyone,long term storage
  142. Trouble with O2 Sensor
  143. Oil Light
  144. Engine Oil Additive to stop leaks?!?
  145. Got a Reply! on HT4100 TO 4500 Conversion!
  146. Performance Mufflers for 4.9??
  147. Mobil 1 Extended Performance? BBob!
  148. Code 33 Help!!!!
  149. Engine Idle and "almost" stalling problems
  150. Boosting HT4100 Performance
  151. Benefit of using higher mileage vehicle oil?
  152. Exhaust Condensation
  153. bad throttle response
  154. timing newbbb
  155. Does it ever Stop!!!Tuned up and Tuned out
  156. Engine miss at highway speeds.
  157. Mind boggler engine noise
  158. 91 4.9 Excessive Fuel Consumption
  159. 4.5 tbi- performance stuff??
  160. new to me 85 coupe Deville
  161. HELP! 1990 seville shifts to 3rd and freewheels
  162. Engine reliability?
  163. Rough Idle and Missing...
  164. 1992 DeVille Misfiring, or something.
  165. Bad computer? Maybe
  166. air pump to fan to crunk v belt
  167. Can 4.1 be replaced with 305 fuel Injected?
  168. AMAZING fix for hesitation, bad milage
  169. Issues with vacuum lines, Battery light, all in this issue of the 2dfx PMS Thread!
  170. coolant temp light???
  171. 4.9 Fuel Filter clogging...
  172. cadillac eldorado 1991 4.9
  173. ISC Unpluged , wont idle
  174. Loose EGR tube
  175. HT4100 swap. 4.5 or 4.9?
  176. Typical Driveability Problem - 90 Deville
  177. Engine Fire!!! Why Me???
  178. dieseling HT4100....
  179. '82 Eldo Engine dying out, Backfiring through throttle body--Bbobynski please help!!!
  180. intermittent problemn
  181. Sparkplugs
  182. Whats The Best Oil for the HT4100???
  183. Need Help
  184. car running rough now
  185. my baby is sick again , why ??????
  186. Eldorado 4.1 motor problem
  187. Minor tune up
  188. '82 vs. '83 Eldo ECM--ARE THEY INTERCHANGEABLE?!? HELP!!!!
  189. Stupid question for smart people.
  190. Will 4.5 exhaust manifolds fit the HT4100?
  191. '85 eldo 4.1 head leak
  192. OIL Leak??????
  193. 95 deville temp.
  194. 3 questions for all you experts.
  195. 1986 4.1 rebuiled upgrades for more reliability.
  196. Idle Relearn Debate
  197. Fuel Filter Location - 85 Deville (Front Wheel)
  198. HT4100 FLOWMASTER 40series delta flow sound clip
  199. 85 Deville 4100 - Problems Galore
  200. Change Oil Light
  201. compatibility part 2
  202. Please REad need answer ASAP
  203. READ THIS ONE! \/\/ high idle
  204. 90 Deville-surging, missing, after it is warmed up
  205. ECM killing the Injectors?
  206. Someone tell me what a 'transaxle range switch' is!
  207. Electrical problem. Car won't start.
  208. my baby is sick and wont get better :(
  209. Thinking about replacing the 4.9L
  210. Accel Fuel Injectors
  211. I have 2 questions.
  212. Subtle rattling noise possibly from transmission
  213. Redline/shiftpoints for 4.5
  214. two questions pedal and ...
  215. valve spring rates
  216. I wanna know as many 0-60 times as possible!!
  217. Performance Parts for 4.9
  218. 92 Sedan Deville
  219. Car runs hot during long trips
  220. Radiator woes...
  221. How Many of You With Dead Injectors??
  222. 4.9 /Northstar
  223. Coolant shelf life?? No good after 2 years?
  224. compatibility???
  225. Exhaust Options? (photos)
  226. engine oil supplement ?
  227. 4.5 Engine: one dead others dying
  228. air intake mod?
  229. 4100 dual exhaust anyone????
  230. 93 deville heating problem
  231. E98 Isc?
  232. well
  233. High Mileage 4.9L Problems (desperate help needed)
  234. Missing Oil Pump O-ring On Ht4100
  235. 4.9l Deville e41 troubleshooting
  236. ISC RPM out of Range (P030)
  237. Clicking sound from valve covers?
  238. Oh no! trannys slipping
  239. 4.9L Drain Plug Leaking after Coolant Flush -- Help!
  240. 4.9 in rwd configuration?
  241. Fuel Pressure Regulator location?
  242. 4.9L engine low power
  243. here is a good one
  244. rocker arm pivot support
  245. new engine
  246. valve lifter?
  247. please dont be head gasket!!
  248. Starter Removal
  249. module needs ground?
  250. 4.1 vs 4.9