: HT4100 4.1, 4.5, 4.9



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  1. leaking deville 4100 need bandaid
  2. Is 104C too hot for a 4.9L 1994 Deville?
  3. Is There Such A Thing As A Starter Motor Overheating?
  4. Illumina /Bbob/Nodh and other Tech types
  5. Possible Seville Engine Swap
  6. E39 Code
  7. 4.5 Performance?
  8. ht4100 bars leaks crap help
  9. 1990 4.5 needs new injectors
  10. My buddy thought the 4.9 was like 250hp!!
  11. Engine STILL missing (intermittant), tons of work done so far--HELP!!!
  12. rumble in the 'ville
  13. My Caddy won't start.
  14. Code 19....1984 DeVille
  15. Longevity of a 4.9L Is 150K too many miles?
  16. What are the common problem areas with 4.9Ls on 1994 Deville?
  17. Knock
  18. 4.9 straightpipes
  19. how common are coolant leaks in 4.9
  20. transmission trouble
  21. 1985 HT 4100 Cast Iron Block & Head???
  22. 93 Deville Idle Sticking
  23. Stuck with a HT4100? I have the solution!
  24. 4.9 problems
  25. Tranny Cooler Part Numbers:92 ETC
  26. 85 HT4100 Swap
  27. Engine knocking
  28. Oil leak (Bbob)
  29. Ht4100 Idle
  30. Any advice on a HT4100 while I'm fixing the timing chain/gears?
  31. dumbass in need of help
  32. HT4100 Idle speed (warmed up)?
  33. Transmission lags the downshifts + sometimes upshifts after high speed drive
  34. Changing Engine Coolant
  35. P085 ....... Idle Throttle Angle Too High
  36. serpantine belt problem, 92 deville
  37. Are You Sure Rotella Is good for the 4.9?
  38. antifreeze in oil please help bbob and all
  39. 89 STS torques to one side
  40. 88 eldorado 4.5 help please
  41. 4.9 water pump bolting question?
  42. 1992 Cadillac Sedan DeVille O2 Sensors
  43. 90 Eldo w/4.5 PROJECT CAR - Advice Desired
  44. fuel injector question
  45. It's the smog pump
  46. Removing/Reinstalling Accelerator Pedal
  47. Risks of Ethanol?
  48. 4.1 compression
  49. replaced water pump/wont start
  50. proper oil for 88 sedan deville
  51. Warmed up engine FLOWMASTER 40series DELTA FLOW clip
  52. Brake cleaner - does it miff the engine gaskets?
  53. 94 Deville 4.9L ...P030 and some other codes....
  54. New to the forum....
  55. Who sells a good CA legal catalytic conv. ?? - We have very strict Smog tests here.
  56. Are these holes in the airfilter housing supposed to have something... '84 HT4100 TBI
  57. New Deville Clips
  58. 84 cadillac seville chargeing problem
  59. 1992 sedan deville head gaskets?
  60. 92 Deville Starter heat shied
  61. 4.5 intake gasket
  62. VSS location?
  63. How do you Remove&Clean Throttle Body, engines too big to see back there.
  64. No More Poop On Coupe ! Yea !
  65. 88 eldo 4.5 running temp and code E027 ?'s
  66. 93 Seville radiator fan
  67. PO41 No Cam reference Signal - broke down on trip
  68. Is the exhaust layout identical per the 1983 and 1984 DeVille 4.1 V8
  69. Aftermarket Cat
  70. Why doesn't an '84 DeVille F'ING show up on most of the online catalogs?
  71. What's the most universal oil filter wrench you have used?
  72. 91' deville
  73. 90 deville water pump?
  74. time for a tune up.. whats involved.
  75. Oil Pressure Light just came on - 4.1 V-8!
  76. CAN you change oil filter withOUT draining oil pan?
  77. 83 coupe 4100 ( 4.1) injector problems
  78. Slow Battery Drain
  79. 4.5 liter misfiring on acceleration, rough idle
  80. HT4100 EGR schematics needed to figure out smog issue, BAD F'ING NEWS
  81. Change of Plans! I'm not supercharging anything...
  82. torque convertors for teh 4t60
  83. BARO on 4.9?
  84. Knocking/Rattling From Engine
  85. injector duty cycle
  86. Dangers of flsuhing HT4100 with motor Flush and Supertech oil.
  87. Fuel pressure
  88. Newbie needs help with 87 seville 4.1L
  89. Can A 4.1 Trans be Used in a Long?...
  90. anyone know????
  91. 4.1 wiring from distributor to plugs HELP ASAP
  92. 84 Eldorado 4.1 V8 (HT4100) "E" engine, M57 tranny, Noise from lower end
  93. remove power steering pulley
  94. coolant temperature
  95. GM Reliability Testing?
  96. 84 SDV RWD 4.1 Intake gasket
  97. Is single 3" exhaust too big for a 4.1L @ 200 HP?
  98. Fuel Injector Replacement
  99. HELP!! 91 Eldo stalling problem
  100. used E C M ... from junk yard
  101. How much booooooooost PSI can these 4.1's take? What gives in under pressure?
  102. Bad ECU?(BBOB)
  103. WHAT THE **** IS EVERYONE's FAVORITE MUFFLER/CAT Pipe SETUP?
  104. 4.9 oil pump in 4.5?
  105. does ECU prevent engine braking
  106. What The Hell Is That Thing!?!?!?!
  107. Cleaning and tune up junk on an 88 4.5L deville
  108. 1990 Deville won't start HELP
  109. What kind of Exhaust systems do the 84 SDV 4.1Liter motors like to breath through?
  110. Took a Vid in my 91 Deville
  111. Knocking in the 4.9
  112. 94 deville questions
  113. Best way to flush system (84 HT4100 SDV)
  114. Info on GM Goodwrench replacement engine, HT4100
  115. And Yet Another ISC Motor Question
  116. Car has no spark
  117. idle rpm
  118. Oil leak
  119. 1990 4.5l air system problem
  120. Oxygen Sensor Broke?
  121. plug wires??
  122. isc motor question
  123. HT 4100 Replacement Source?
  124. 4.5L Valve Pinging / Clattering
  125. problem while coasting
  126. Rough Idle, 87 4.1 Eldorado
  127. What water??
  128. throwing my belt off
  129. Which models come with the 4.9 V8?
  130. Rough running 92 Eldo
  131. 4100 D F I injector problems... looking for solutions
  132. 4.9 codes
  133. Best way to clean my throttle body?
  134. 85 Eldorado 4.1 help!!
  135. Engine Oil Questions - Bboby
  136. Finally. . .Solved Intake Backfire
  137. Whats The AVG MPG Readout for this forum
  138. Engine Idles 10 Seconds AFTER Ignition Shut-Off!!
  139. Weird 4.9 noise (not in archives)
  140. what kinda maintenance should i do
  141. Bbob...Whats the difference!?!
  142. Grounds Anyone?
  143. Ht4100 Backfires Out Of Fuel Injection
  144. Check Fuel Pump Amps draw ? Bob ?
  145. 90 Deville code help
  146. Starts hard when it gets hot
  147. Gas milage back, more power, more smooth..
  148. Rpm/idle Problems
  149. Oil Filter Capacity?
  150. Getting a Attitude Again-missing
  151. Is There a good quick fix for oil consumption?
  152. looking for opinions on best oil/synthetic to use in a 4.1
  153. I Don't Even Know Where To Start
  154. 93 Deville Experts Please e26 239 e47 e97 e98 f32 stalls
  155. Fastest 4.9 Ever?
  156. 93 Sedan 4.9 F32, archives no help
  157. Change spark PLugs
  158. good compression
  159. Where on the Web can I Find AC Delco Spark Plugs Cheap
  160. Changed Oil Pan Gasket, Still Leaking (4.1)
  161. Cam sensor replacement?
  162. Oil drain plug stuck on 4.5!
  163. i want to make sure
  164. Looking for used v-8 intake
  165. Fuel Economy and Engine Power
  166. 85 seville transmission
  167. Rotella coolant.
  168. Noise Under Hood When Turning Ignition On and Off
  169. Coolant Pellets? How Many?
  170. 1990 bcm code e-47
  171. please help
  172. 4-9 Fuel Pump Psi
  173. Engine Knock
  174. help my overheat um i think
  175. Is this the same knock as the 4.9 knock? It is an HT4100
  176. 4.9 valve cover
  177. Porting on HT4100's
  178. 4.5L Idle Problem Solved!! Thanks, bbobynski
  179. 84 deville died, won't restart ht4100
  180. surging power
  181. Air Management System Problem
  182. '85 Deville running rich
  183. 4.9 60k knock gone!!!!!!!!!!!!!!!!!
  184. Install Separate Thermostatic Fan Control?
  185. 4.1 Eldorado Oil Pan Gasket Change; MAJOR PAIN!
  186. Anyone Need a HT 4100
  187. questions on 4.9l v8
  188. '92 4.9 Stalling after transmission rebuild
  189. Fuel Injectors 94 Deville 4.9L
  190. 4.9L compatable with small block???
  191. 92 seville performance help
  192. Bbob- Open Loop Better Than Closed??
  193. 86 Seville 4.1 advice re removal of water pump
  194. GM parts vs Aftermarket- HT4100
  195. Where's the ALDL on my 88 Deville?
  196. Tranny Woes
  197. 4.9 with 60K knocking, please help!!!!!!!!!!!
  198. ISC Motor &TPS/E30 code
  199. To ILLUMINA!!! RE Performance Parts for 4.9
  200. Transmission
  201. Cleaned egr tubes
  202. 95 deville blown head gasket
  203. Question About Changing Water Pump
  204. Purchased 1984 Sedan Deville
  205. stock 4.9 intake to allante intake comparison
  206. What kind of problems do you get if you have a F32 code
  207. Amsoil for 4.9
  208. 93 weirdo miss
  209. Mixing oils...
  210. What Is A PCM?
  211. What is a BCM?
  212. Redline/Tachometer
  213. HT4100 "Base Timing Mode"
  214. A few 4.x questions
  215. 4.x dyno and comparison questions
  216. '90 Deville 4.5 idle problems
  217. 200R4 slipping real bad
  218. 88 Deville...E30 & EE30 code
  219. 4 prong spark plugs on 4.5
  220. Idle Speed Control Unit
  221. Does Anyone have F codes for a 93 deville
  222. thermostat
  223. Computer/wiring on 4.1L to 4.5L swap
  224. 1988 Deville Fast idle problems 4.5L
  225. 4.5--->4.9? (maybe more)
  226. HT4100 0-60 times!
  227. tranny slipping and e39 vcc
  228. Cheap HPs?
  229. Help!!!My caddy flunked the emmissions test
  230. 92 Help!!!
  231. Left or Right Bank Fuel Imbalance
  232. Engine Misses when cold
  233. The "4.9 liter turbocharger, stage 1" thread.
  234. code19
  235. Code E30 ( NO DASH!!! )
  236. 93 DeVille failed IL CO and HC emissions - need help
  237. Water
  238. OK the 4.9 ECU mods thread ,lets go!
  239. Need information on an engine rebuild
  240. how do i use the codes
  241. intake question
  242. advanced timing
  243. Another one knockin
  244. egr valve
  245. 4.9 engine idle speed...
  246. Blown Head Gasket maybe?????
  247. Ht4100 Flowmaster Sound Clip!!!!!!!
  248. Lucas oil treatment?
  249. Piston Rings
  250. Startup problem