: HT4100 4.1, 4.5, 4.9



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  1. my baby is sick again , why ??????
  2. Eldorado 4.1 motor problem
  3. Minor tune up
  4. '82 vs. '83 Eldo ECM--ARE THEY INTERCHANGEABLE?!? HELP!!!!
  5. Stupid question for smart people.
  6. Will 4.5 exhaust manifolds fit the HT4100?
  7. '85 eldo 4.1 head leak
  8. OIL Leak??????
  9. 95 deville temp.
  10. 3 questions for all you experts.
  11. 1986 4.1 rebuiled upgrades for more reliability.
  12. Idle Relearn Debate
  13. Fuel Filter Location - 85 Deville (Front Wheel)
  14. HT4100 FLOWMASTER 40series delta flow sound clip
  15. 85 Deville 4100 - Problems Galore
  16. Change Oil Light
  17. compatibility part 2
  18. Please REad need answer ASAP
  19. READ THIS ONE! \/\/ high idle
  20. 90 Deville-surging, missing, after it is warmed up
  21. ECM killing the Injectors?
  22. Someone tell me what a 'transaxle range switch' is!
  23. Electrical problem. Car won't start.
  24. my baby is sick and wont get better :(
  25. Thinking about replacing the 4.9L
  26. Accel Fuel Injectors
  27. I have 2 questions.
  28. Subtle rattling noise possibly from transmission
  29. Redline/shiftpoints for 4.5
  30. two questions pedal and ...
  31. valve spring rates
  32. I wanna know as many 0-60 times as possible!!
  33. Performance Parts for 4.9
  34. 92 Sedan Deville
  35. Car runs hot during long trips
  36. Radiator woes...
  37. How Many of You With Dead Injectors??
  38. 4.9 /Northstar
  39. Coolant shelf life?? No good after 2 years?
  40. compatibility???
  41. Exhaust Options? (photos)
  42. engine oil supplement ?
  43. 4.5 Engine: one dead others dying
  44. air intake mod?
  45. 4100 dual exhaust anyone????
  46. 93 deville heating problem
  47. E98 Isc?
  48. well
  49. High Mileage 4.9L Problems (desperate help needed)
  50. Missing Oil Pump O-ring On Ht4100
  51. 4.9l Deville e41 troubleshooting
  52. ISC RPM out of Range (P030)
  53. Clicking sound from valve covers?
  54. Oh no! trannys slipping
  55. 4.9L Drain Plug Leaking after Coolant Flush -- Help!
  56. 4.9 in rwd configuration?
  57. Fuel Pressure Regulator location?
  58. 4.9L engine low power
  59. here is a good one
  60. rocker arm pivot support
  61. new engine
  62. valve lifter?
  63. please dont be head gasket!!
  64. Starter Removal
  65. module needs ground?
  66. 4.1 vs 4.9
  67. well damn
  68. 4.9 Misfire
  69. P012 bad hall sensor or pick up coil?
  70. Rebuilt Ht4100 With Less Power
  71. Coolant drain locations for a 4.9 (93 SDV)
  72. Metal hose running into side of cat, what is it?
  73. Pulled plugs and compression test *pics*
  74. rip of cat conv and egr??
  75. 4100 coolant capacity
  76. 4.5L A.I.R. Error Code
  77. Increasing Horsepower in 1992 Deville
  78. 4100 Help!!!
  79. Just craps out when I give it gas
  80. He said my cams were out of time....
  81. 4.9 bearing thump
  82. Final Choice: Dynomax SuperTurbos VS. Summit Turbos
  83. Knocking when I give gas to the engine Any one know?!!!
  84. 1991 Cadillac Deville Misfiring
  85. 4.1 engine weight and application ?
  86. Timing advance and still run on MidGrade??
  87. 1990 Eldorado water pump removal help
  88. junkyard ht4100
  89. 1989 4.5L no start when cold. At witts end
  90. Engine runs poorly
  91. 4.5 Engine Woes
  92. Do it right once ....Never see it again
  93. 84Eldo 4.1 won't start
  94. 4.9 Died Again
  95. 4.9L Volcano!!!!
  96. Now I'm getting code 38! What gives?
  97. '84 4.1 running VERY rich, PLEASE HELP!!!!
  98. E30 on Fleetwood 1990
  99. Need Some Help
  100. What's this coming or going out of my cat. converter?
  101. Draining ALL the coolant!!
  102. What's the name of the device (?pump?) under on my 86 deville
  103. car running rich messing up oxygen sensor!
  104. no oil pressure
  105. 90 4.5 Runs Great till it warms up then brakes up.
  106. 4100 tuneing
  107. Engine has a hard time running
  108. i had it out with the cooling system today
  109. temperature erratic
  110. 95 4.9L #7 Cylinder dead, Injector?
  111. 4.9 Cylinder head removal questions
  112. Coolant change.Time or mileage dependant?
  113. Anti-Freeze Coming out of Heater?(fogging up windows)
  114. i changed everything almost ugghh
  115. 4.9L build-up
  116. stuck valve?
  117. I Need a bolt can you help me?
  118. update on my '82
  119. E39 Vcc
  120. WTF is going on!!!(engine runnin crazy!)
  121. 4.1 Low compression
  122. OBD code
  123. popping from carb..
  124. 1984 Having Coooold Start Problems.
  125. won't start when hot
  126. 4100 Heads For Sale
  127. [B][U]4.9 L Performance, 10" Round Air Cleaner[/B][/U]
  128. Head Gaskets or Complete Valve Job
  129. 4100 head bolts
  130. Now this is really weird to me!
  131. 84' seville timing
  132. 4.9 no longer starts
  133. ht4100 loosing power and e codes
  134. 4.1 running rich
  135. Car surges when accelerating
  136. 4.9 HEI ignition
  137. 93 eldorado vs. 92 coupe deville
  138. 4.5 Pinging
  139. Air Mix Door problem code F40
  140. Caddi still not starting
  141. 95 Deville 4.9, Low oil pressure warning
  142. im so cold
  143. Fuel lines
  144. '93 DeVille Gas Mileage Questions
  145. Question for Kcnewell
  146. my '85 FWB died on the interstate...fuel pump?
  147. throttle body cleaning????
  148. another sickening creation of mine!
  149. Coolant supplement
  150. backfiring in park
  151. 4.5 oil pan-bolts gone pan stays on
  152. Crazy overheating problem
  153. Weird Problem
  154. Need to find honest and expert mechanic in Saint Louis Help
  155. 84 Eldorado engine overheating problem
  156. Resurection of a '94 4.9--Advice please!
  157. Jr Shift kit 1-2 rpm shift? but my rebuilt transmission seems great :)
  158. 4.9 low oil pressure warning after head gaskets
  159. Backfiring from the start
  160. I really need help on this.... engine overall performs better, gas millage bad...
  161. 4.9l Engine Knocks when Started
  162. MYSTERY 94'deville water pump
  163. Rattling Rattling Rattling !!
  164. 89 Fleetwood no problems with overheating then 3 days ago leaking antifreeze......
  165. 90-92 350 TBI into 80's Fleetwood Brougham ?
  166. Possible northstar upgrade?
  167. Ignition module failing?
  168. plug wire confusion
  169. please help 4100 problem
  170. advice
  171. 4.5 no heat
  172. 4.1 Runnin a Little Hot at Idle
  173. I hope it's not too late!
  174. 4.1 Cad. Fleetwood Brougham [Tranny Question]
  175. Just installed new M.A.P. sensor now car doesn't even start!
  176. Help With 4100
  177. Help Please Va (engine Problem)
  178. ATF Generic or Name brand???
  179. 1985 deville, coolant in my oil, help
  180. help me bbobynski 4.5 lack of power
  181. '92 4.9 torque converter problem
  182. Car Stall when u hit brake at the stop light sometime
  183. Oil Leaking
  184. smog problems with 84 el dorado timing marks
  185. Help
  186. Quick question: Cradle to cradle / Rear engine/trans mount bolts
  187. Rare Cadillac Options? NM8
  188. 4.5 Fuel Filter replacement
  189. Swap 4.1 out 368 in. Can it be done?
  190. fuel filter location
  191. 93 deville water pump
  192. main bearing seel
  193. 4.9 off idle knocking?
  194. How many mile u got out of your 4.1 engine
  195. hard time starting car
  196. Needed help on 4.1 engine system
  197. 4.9 Idle Learn - Is this honestly it?
  198. 4.5 bad gas mileage and lack of power
  199. Flush at 20k ?Break in proceedure?
  200. 4.9 rpm bounce & bad mpg
  201. 91 4.9 hesitation EGR?
  202. power to fuel injector
  203. HT4100, no power uphill
  204. fuel regulator
  205. Inner wheel tire is spliting
  206. HT4100 Damper Bolt
  207. My car runs the same with or without the egr hooked up
  208. Superchip VS Timing advance
  209. mph limiter
  210. Highway millage.... bad....
  211. 88 Eldorado - rough idle, intermittent miss
  212. 4.1vs4.9
  213. Tranny Blew out
  214. Transmission wiring diag.
  215. Car not starting, please help
  216. So what do you like about your 4.9?
  217. 4.9 EGR system....
  218. Th 350
  219. problems removing oil pan - Please Help!
  220. 4.1 to 307 swap question
  221. Exhaust question once again
  222. BBob and anyone else, whats the say on synthetic?
  223. HEI In-cap Coil - What our the differences?
  224. tranny warmup?
  225. These 4.9s have some power!
  226. water pump, water pump, water pump,
  227. 1990 DeVille has" the shakes" and revs on its own
  228. 4.9 pinging not under a load
  229. Barometric Pressure Sensor location
  230. Exhaust leak in engine compartment?
  231. 5W-30 Vs 10W30 for the cold winter?
  232. trans delays shift
  233. Rebuilt motor for an 85
  234. 87 Eldo w 35,000 mi, Change tran fluid?
  235. Fuel Injector Impedance - High/Low
  236. How to make a wooden Engine Support Fixture J-28467
  237. 4.1 Coolant Leak from block-PLEASE HELP!
  238. 84 coupe deville fan shroud
  239. Mileage and Power loss, again.
  240. 4.9 valve cover gasket
  241. C-v joint
  242. 82' couple 4100 - accelerating by itslef - HELP
  243. Do I have to change coolant?
  244. 1990 4.5L Eldroado Engine running rough
  245. 4.9 speed limiter...
  246. Is this the right stuff, going to attempt this weekend
  247. TPS setting
  248. Tune up on a 89 Deville w/ 4.5
  249. Quick Question
  250. 92 eldorado E0085 dtc help pls