: HT4100 4.1, 4.5, 4.9



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  1. Dumb Tool Question?
  2. Intake on a Deville...
  3. now what ?
  4. EDAHALL! How do i post sound clips of my FLOWMASTER 40 SERIES delta with the HT4100
  5. Delco vs. Others
  6. Needle in a haystack E53
  7. Will a HT4100 go into an 88 Deville?
  8. A little oil here and a Little oil there
  9. How do you advance timing?
  10. 4.9L '92 Knocking...or missing, help!
  11. Ticking
  12. Rebuilding an HT4100
  13. Engine Swap
  14. Timing Questions...
  15. '90 DeVille 4.5L "hunts" for curb idle
  16. What is most likely source of oil leak?
  17. fuel system??
  18. collectors,bbob anyone,long term storage
  19. Trouble with O2 Sensor
  20. Oil Light
  21. Engine Oil Additive to stop leaks?!?
  22. Got a Reply! on HT4100 TO 4500 Conversion!
  23. Performance Mufflers for 4.9??
  24. Mobil 1 Extended Performance? BBob!
  25. Code 33 Help!!!!
  26. Engine Idle and "almost" stalling problems
  27. Boosting HT4100 Performance
  28. Benefit of using higher mileage vehicle oil?
  29. Exhaust Condensation
  30. bad throttle response
  31. timing newbbb
  32. Does it ever Stop!!!Tuned up and Tuned out
  33. Engine miss at highway speeds.
  34. Mind boggler engine noise
  35. 91 4.9 Excessive Fuel Consumption
  36. 4.5 tbi- performance stuff??
  37. new to me 85 coupe Deville
  38. HELP! 1990 seville shifts to 3rd and freewheels
  39. Engine reliability?
  40. Rough Idle and Missing...
  41. 1992 DeVille Misfiring, or something.
  42. Bad computer? Maybe
  43. air pump to fan to crunk v belt
  44. Can 4.1 be replaced with 305 fuel Injected?
  45. AMAZING fix for hesitation, bad milage
  46. Issues with vacuum lines, Battery light, all in this issue of the 2dfx PMS Thread!
  47. coolant temp light???
  48. 4.9 Fuel Filter clogging...
  49. cadillac eldorado 1991 4.9
  50. ISC Unpluged , wont idle
  51. Loose EGR tube
  52. HT4100 swap. 4.5 or 4.9?
  53. Typical Driveability Problem - 90 Deville
  54. Engine Fire!!! Why Me???
  55. dieseling HT4100....
  56. '82 Eldo Engine dying out, Backfiring through throttle body--Bbobynski please help!!!
  57. intermittent problemn
  58. Sparkplugs
  59. Whats The Best Oil for the HT4100???
  60. Need Help
  61. car running rough now
  62. my baby is sick again , why ??????
  63. Eldorado 4.1 motor problem
  64. Minor tune up
  65. '82 vs. '83 Eldo ECM--ARE THEY INTERCHANGEABLE?!? HELP!!!!
  66. Stupid question for smart people.
  67. Will 4.5 exhaust manifolds fit the HT4100?
  68. '85 eldo 4.1 head leak
  69. OIL Leak??????
  70. 95 deville temp.
  71. 3 questions for all you experts.
  72. 1986 4.1 rebuiled upgrades for more reliability.
  73. Idle Relearn Debate
  74. Fuel Filter Location - 85 Deville (Front Wheel)
  75. HT4100 FLOWMASTER 40series delta flow sound clip
  76. 85 Deville 4100 - Problems Galore
  77. Change Oil Light
  78. compatibility part 2
  79. Please REad need answer ASAP
  80. READ THIS ONE! \/\/ high idle
  81. 90 Deville-surging, missing, after it is warmed up
  82. ECM killing the Injectors?
  83. Someone tell me what a 'transaxle range switch' is!
  84. Electrical problem. Car won't start.
  85. my baby is sick and wont get better :(
  86. Thinking about replacing the 4.9L
  87. Accel Fuel Injectors
  88. I have 2 questions.
  89. Subtle rattling noise possibly from transmission
  90. Redline/shiftpoints for 4.5
  91. two questions pedal and ...
  92. valve spring rates
  93. I wanna know as many 0-60 times as possible!!
  94. Performance Parts for 4.9
  95. 92 Sedan Deville
  96. Car runs hot during long trips
  97. Radiator woes...
  98. How Many of You With Dead Injectors??
  99. 4.9 /Northstar
  100. Coolant shelf life?? No good after 2 years?
  101. compatibility???
  102. Exhaust Options? (photos)
  103. engine oil supplement ?
  104. 4.5 Engine: one dead others dying
  105. air intake mod?
  106. 4100 dual exhaust anyone????
  107. 93 deville heating problem
  108. E98 Isc?
  109. well
  110. High Mileage 4.9L Problems (desperate help needed)
  111. Missing Oil Pump O-ring On Ht4100
  112. 4.9l Deville e41 troubleshooting
  113. ISC RPM out of Range (P030)
  114. Clicking sound from valve covers?
  115. Oh no! trannys slipping
  116. 4.9L Drain Plug Leaking after Coolant Flush -- Help!
  117. 4.9 in rwd configuration?
  118. Fuel Pressure Regulator location?
  119. 4.9L engine low power
  120. here is a good one
  121. rocker arm pivot support
  122. new engine
  123. valve lifter?
  124. please dont be head gasket!!
  125. Starter Removal
  126. module needs ground?
  127. 4.1 vs 4.9
  128. well damn
  129. 4.9 Misfire
  130. P012 bad hall sensor or pick up coil?
  131. Rebuilt Ht4100 With Less Power
  132. Coolant drain locations for a 4.9 (93 SDV)
  133. Metal hose running into side of cat, what is it?
  134. Pulled plugs and compression test *pics*
  135. rip of cat conv and egr??
  136. 4100 coolant capacity
  137. 4.5L A.I.R. Error Code
  138. Increasing Horsepower in 1992 Deville
  139. 4100 Help!!!
  140. Just craps out when I give it gas
  141. He said my cams were out of time....
  142. 4.9 bearing thump
  143. Final Choice: Dynomax SuperTurbos VS. Summit Turbos
  144. Knocking when I give gas to the engine Any one know?!!!
  145. 1991 Cadillac Deville Misfiring
  146. 4.1 engine weight and application ?
  147. Timing advance and still run on MidGrade??
  148. 1990 Eldorado water pump removal help
  149. junkyard ht4100
  150. 1989 4.5L no start when cold. At witts end
  151. Engine runs poorly
  152. 4.5 Engine Woes
  153. Do it right once ....Never see it again
  154. 84Eldo 4.1 won't start
  155. 4.9 Died Again
  156. 4.9L Volcano!!!!
  157. Now I'm getting code 38! What gives?
  158. '84 4.1 running VERY rich, PLEASE HELP!!!!
  159. E30 on Fleetwood 1990
  160. Need Some Help
  161. What's this coming or going out of my cat. converter?
  162. Draining ALL the coolant!!
  163. What's the name of the device (?pump?) under on my 86 deville
  164. car running rich messing up oxygen sensor!
  165. no oil pressure
  166. 90 4.5 Runs Great till it warms up then brakes up.
  167. 4100 tuneing
  168. Engine has a hard time running
  169. i had it out with the cooling system today
  170. temperature erratic
  171. 95 4.9L #7 Cylinder dead, Injector?
  172. 4.9 Cylinder head removal questions
  173. Coolant change.Time or mileage dependant?
  174. Anti-Freeze Coming out of Heater?(fogging up windows)
  175. i changed everything almost ugghh
  176. 4.9L build-up
  177. stuck valve?
  178. I Need a bolt can you help me?
  179. update on my '82
  180. E39 Vcc
  181. WTF is going on!!!(engine runnin crazy!)
  182. 4.1 Low compression
  183. OBD code
  184. popping from carb..
  185. 1984 Having Coooold Start Problems.
  186. won't start when hot
  187. 4100 Heads For Sale
  188. [B][U]4.9 L Performance, 10" Round Air Cleaner[/B][/U]
  189. Head Gaskets or Complete Valve Job
  190. 4100 head bolts
  191. Now this is really weird to me!
  192. 84' seville timing
  193. 4.9 no longer starts
  194. ht4100 loosing power and e codes
  195. 4.1 running rich
  196. Car surges when accelerating
  197. 4.9 HEI ignition
  198. 93 eldorado vs. 92 coupe deville
  199. 4.5 Pinging
  200. Air Mix Door problem code F40
  201. Caddi still not starting
  202. 95 Deville 4.9, Low oil pressure warning
  203. im so cold
  204. Fuel lines
  205. '93 DeVille Gas Mileage Questions
  206. Question for Kcnewell
  207. my '85 FWB died on the interstate...fuel pump?
  208. throttle body cleaning????
  209. another sickening creation of mine!
  210. Coolant supplement
  211. backfiring in park
  212. 4.5 oil pan-bolts gone pan stays on
  213. Crazy overheating problem
  214. Weird Problem
  215. Need to find honest and expert mechanic in Saint Louis Help
  216. 84 Eldorado engine overheating problem
  217. Resurection of a '94 4.9--Advice please!
  218. Jr Shift kit 1-2 rpm shift? but my rebuilt transmission seems great :)
  219. 4.9 low oil pressure warning after head gaskets
  220. Backfiring from the start
  221. I really need help on this.... engine overall performs better, gas millage bad...
  222. 4.9l Engine Knocks when Started
  223. MYSTERY 94'deville water pump
  224. Rattling Rattling Rattling !!
  225. 89 Fleetwood no problems with overheating then 3 days ago leaking antifreeze......
  226. 90-92 350 TBI into 80's Fleetwood Brougham ?
  227. Possible northstar upgrade?
  228. Ignition module failing?
  229. plug wire confusion
  230. please help 4100 problem
  231. advice
  232. 4.5 no heat
  233. 4.1 Runnin a Little Hot at Idle
  234. I hope it's not too late!
  235. 4.1 Cad. Fleetwood Brougham [Tranny Question]
  236. Just installed new M.A.P. sensor now car doesn't even start!
  237. Help With 4100
  238. Help Please Va (engine Problem)
  239. ATF Generic or Name brand???
  240. 1985 deville, coolant in my oil, help
  241. help me bbobynski 4.5 lack of power
  242. '92 4.9 torque converter problem
  243. Car Stall when u hit brake at the stop light sometime
  244. Oil Leaking
  245. smog problems with 84 el dorado timing marks
  246. Help
  247. Quick question: Cradle to cradle / Rear engine/trans mount bolts
  248. Rare Cadillac Options? NM8
  249. 4.5 Fuel Filter replacement
  250. Swap 4.1 out 368 in. Can it be done?