: HT4100 4.1, 4.5, 4.9



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  1. Risks of Ethanol?
  2. 4.1 compression
  3. replaced water pump/wont start
  4. proper oil for 88 sedan deville
  5. Warmed up engine FLOWMASTER 40series DELTA FLOW clip
  6. Brake cleaner - does it miff the engine gaskets?
  7. 94 Deville 4.9L ...P030 and some other codes....
  8. New to the forum....
  9. Who sells a good CA legal catalytic conv. ?? - We have very strict Smog tests here.
  10. Are these holes in the airfilter housing supposed to have something... '84 HT4100 TBI
  11. New Deville Clips
  12. 84 cadillac seville chargeing problem
  13. 1992 sedan deville head gaskets?
  14. 92 Deville Starter heat shied
  15. 4.5 intake gasket
  16. VSS location?
  17. How do you Remove&Clean Throttle Body, engines too big to see back there.
  18. No More Poop On Coupe ! Yea !
  19. 88 eldo 4.5 running temp and code E027 ?'s
  20. 93 Seville radiator fan
  21. PO41 No Cam reference Signal - broke down on trip
  22. Is the exhaust layout identical per the 1983 and 1984 DeVille 4.1 V8
  23. Aftermarket Cat
  24. Why doesn't an '84 DeVille F'ING show up on most of the online catalogs?
  25. What's the most universal oil filter wrench you have used?
  26. 91' deville
  27. 90 deville water pump?
  28. time for a tune up.. whats involved.
  29. Oil Pressure Light just came on - 4.1 V-8!
  30. CAN you change oil filter withOUT draining oil pan?
  31. 83 coupe 4100 ( 4.1) injector problems
  32. Slow Battery Drain
  33. 4.5 liter misfiring on acceleration, rough idle
  34. HT4100 EGR schematics needed to figure out smog issue, BAD F'ING NEWS
  35. Change of Plans! I'm not supercharging anything...
  36. torque convertors for teh 4t60
  37. BARO on 4.9?
  38. Knocking/Rattling From Engine
  39. injector duty cycle
  40. Dangers of flsuhing HT4100 with motor Flush and Supertech oil.
  41. Fuel pressure
  42. Newbie needs help with 87 seville 4.1L
  43. Can A 4.1 Trans be Used in a Long?...
  44. anyone know????
  45. 4.1 wiring from distributor to plugs HELP ASAP
  46. 84 Eldorado 4.1 V8 (HT4100) "E" engine, M57 tranny, Noise from lower end
  47. remove power steering pulley
  48. coolant temperature
  49. GM Reliability Testing?
  50. 84 SDV RWD 4.1 Intake gasket
  51. Is single 3" exhaust too big for a 4.1L @ 200 HP?
  52. Fuel Injector Replacement
  53. HELP!! 91 Eldo stalling problem
  54. used E C M ... from junk yard
  55. How much booooooooost PSI can these 4.1's take? What gives in under pressure?
  56. Bad ECU?(BBOB)
  57. WHAT THE **** IS EVERYONE's FAVORITE MUFFLER/CAT Pipe SETUP?
  58. 4.9 oil pump in 4.5?
  59. does ECU prevent engine braking
  60. What The Hell Is That Thing!?!?!?!
  61. Cleaning and tune up junk on an 88 4.5L deville
  62. 1990 Deville won't start HELP
  63. What kind of Exhaust systems do the 84 SDV 4.1Liter motors like to breath through?
  64. Took a Vid in my 91 Deville
  65. Knocking in the 4.9
  66. 94 deville questions
  67. Best way to flush system (84 HT4100 SDV)
  68. Info on GM Goodwrench replacement engine, HT4100
  69. And Yet Another ISC Motor Question
  70. Car has no spark
  71. idle rpm
  72. Oil leak
  73. 1990 4.5l air system problem
  74. Oxygen Sensor Broke?
  75. plug wires??
  76. isc motor question
  77. HT 4100 Replacement Source?
  78. 4.5L Valve Pinging / Clattering
  79. problem while coasting
  80. Rough Idle, 87 4.1 Eldorado
  81. What water??
  82. throwing my belt off
  83. Which models come with the 4.9 V8?
  84. Rough running 92 Eldo
  85. 4100 D F I injector problems... looking for solutions
  86. 4.9 codes
  87. Best way to clean my throttle body?
  88. 85 Eldorado 4.1 help!!
  89. Engine Oil Questions - Bboby
  90. Finally. . .Solved Intake Backfire
  91. Whats The AVG MPG Readout for this forum
  92. Engine Idles 10 Seconds AFTER Ignition Shut-Off!!
  93. Weird 4.9 noise (not in archives)
  94. what kinda maintenance should i do
  95. Bbob...Whats the difference!?!
  96. Grounds Anyone?
  97. Ht4100 Backfires Out Of Fuel Injection
  98. Check Fuel Pump Amps draw ? Bob ?
  99. 90 Deville code help
  100. Starts hard when it gets hot
  101. Gas milage back, more power, more smooth..
  102. Rpm/idle Problems
  103. Oil Filter Capacity?
  104. Getting a Attitude Again-missing
  105. Is There a good quick fix for oil consumption?
  106. looking for opinions on best oil/synthetic to use in a 4.1
  107. I Don't Even Know Where To Start
  108. 93 Deville Experts Please e26 239 e47 e97 e98 f32 stalls
  109. Fastest 4.9 Ever?
  110. 93 Sedan 4.9 F32, archives no help
  111. Change spark PLugs
  112. good compression
  113. Where on the Web can I Find AC Delco Spark Plugs Cheap
  114. Changed Oil Pan Gasket, Still Leaking (4.1)
  115. Cam sensor replacement?
  116. Oil drain plug stuck on 4.5!
  117. i want to make sure
  118. Looking for used v-8 intake
  119. Fuel Economy and Engine Power
  120. 85 seville transmission
  121. Rotella coolant.
  122. Noise Under Hood When Turning Ignition On and Off
  123. Coolant Pellets? How Many?
  124. 1990 bcm code e-47
  125. please help
  126. 4-9 Fuel Pump Psi
  127. Engine Knock
  128. help my overheat um i think
  129. Is this the same knock as the 4.9 knock? It is an HT4100
  130. 4.9 valve cover
  131. Porting on HT4100's
  132. 4.5L Idle Problem Solved!! Thanks, bbobynski
  133. 84 deville died, won't restart ht4100
  134. surging power
  135. Air Management System Problem
  136. '85 Deville running rich
  137. 4.9 60k knock gone!!!!!!!!!!!!!!!!!
  138. Install Separate Thermostatic Fan Control?
  139. 4.1 Eldorado Oil Pan Gasket Change; MAJOR PAIN!
  140. Anyone Need a HT 4100
  141. questions on 4.9l v8
  142. '92 4.9 Stalling after transmission rebuild
  143. Fuel Injectors 94 Deville 4.9L
  144. 4.9L compatable with small block???
  145. 92 seville performance help
  146. Bbob- Open Loop Better Than Closed??
  147. 86 Seville 4.1 advice re removal of water pump
  148. GM parts vs Aftermarket- HT4100
  149. Where's the ALDL on my 88 Deville?
  150. Tranny Woes
  151. 4.9 with 60K knocking, please help!!!!!!!!!!!
  152. ISC Motor &TPS/E30 code
  153. To ILLUMINA!!! RE Performance Parts for 4.9
  154. Transmission
  155. Cleaned egr tubes
  156. 95 deville blown head gasket
  157. Question About Changing Water Pump
  158. Purchased 1984 Sedan Deville
  159. stock 4.9 intake to allante intake comparison
  160. What kind of problems do you get if you have a F32 code
  161. Amsoil for 4.9
  162. 93 weirdo miss
  163. Mixing oils...
  164. What Is A PCM?
  165. What is a BCM?
  166. Redline/Tachometer
  167. HT4100 "Base Timing Mode"
  168. A few 4.x questions
  169. 4.x dyno and comparison questions
  170. '90 Deville 4.5 idle problems
  171. 200R4 slipping real bad
  172. 88 Deville...E30 & EE30 code
  173. 4 prong spark plugs on 4.5
  174. Idle Speed Control Unit
  175. Does Anyone have F codes for a 93 deville
  176. thermostat
  177. Computer/wiring on 4.1L to 4.5L swap
  178. 1988 Deville Fast idle problems 4.5L
  179. 4.5--->4.9? (maybe more)
  180. HT4100 0-60 times!
  181. tranny slipping and e39 vcc
  182. Cheap HPs?
  183. Help!!!My caddy flunked the emmissions test
  184. 92 Help!!!
  185. Left or Right Bank Fuel Imbalance
  186. Engine Misses when cold
  187. The "4.9 liter turbocharger, stage 1" thread.
  188. code19
  189. Code E30 ( NO DASH!!! )
  190. 93 DeVille failed IL CO and HC emissions - need help
  191. Water
  192. OK the 4.9 ECU mods thread ,lets go!
  193. Need information on an engine rebuild
  194. how do i use the codes
  195. intake question
  196. advanced timing
  197. Another one knockin
  198. egr valve
  199. 4.9 engine idle speed...
  200. Blown Head Gasket maybe?????
  201. Ht4100 Flowmaster Sound Clip!!!!!!!
  202. Lucas oil treatment?
  203. Piston Rings
  204. Startup problem
  205. Dumb Tool Question?
  206. Intake on a Deville...
  207. now what ?
  208. EDAHALL! How do i post sound clips of my FLOWMASTER 40 SERIES delta with the HT4100
  209. Delco vs. Others
  210. Needle in a haystack E53
  211. Will a HT4100 go into an 88 Deville?
  212. A little oil here and a Little oil there
  213. How do you advance timing?
  214. 4.9L '92 Knocking...or missing, help!
  215. Ticking
  216. Rebuilding an HT4100
  217. Engine Swap
  218. Timing Questions...
  219. '90 DeVille 4.5L "hunts" for curb idle
  220. What is most likely source of oil leak?
  221. fuel system??
  222. collectors,bbob anyone,long term storage
  223. Trouble with O2 Sensor
  224. Oil Light
  225. Engine Oil Additive to stop leaks?!?
  226. Got a Reply! on HT4100 TO 4500 Conversion!
  227. Performance Mufflers for 4.9??
  228. Mobil 1 Extended Performance? BBob!
  229. Code 33 Help!!!!
  230. Engine Idle and "almost" stalling problems
  231. Boosting HT4100 Performance
  232. Benefit of using higher mileage vehicle oil?
  233. Exhaust Condensation
  234. bad throttle response
  235. timing newbbb
  236. Does it ever Stop!!!Tuned up and Tuned out
  237. Engine miss at highway speeds.
  238. Mind boggler engine noise
  239. 91 4.9 Excessive Fuel Consumption
  240. 4.5 tbi- performance stuff??
  241. new to me 85 coupe Deville
  242. HELP! 1990 seville shifts to 3rd and freewheels
  243. Engine reliability?
  244. Rough Idle and Missing...
  245. 1992 DeVille Misfiring, or something.
  246. Bad computer? Maybe
  247. air pump to fan to crunk v belt
  248. Can 4.1 be replaced with 305 fuel Injected?
  249. AMAZING fix for hesitation, bad milage
  250. Issues with vacuum lines, Battery light, all in this issue of the 2dfx PMS Thread!