: HT4100 4.1, 4.5, 4.9



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