: HT4100 4.1, 4.5, 4.9



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