: HT4100 4.1, 4.5, 4.9



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