: HT4100 4.1, 4.5, 4.9



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  1. 4.9L Main Bearing Thump
  2. 1993 4.9 rough at low RPM
  3. ht4100 issues
  4. PCM FI Driver Damage ?
  5. DeVille 4.9 Throttle body spacer
  6. Throttle body spacer
  7. Hot exhaust
  8. E24?
  9. 4.9 Water Pump....OR ?
  10. Stalling and Surging--Need help
  11. Relocate the oil filter on your 4.9
  12. SSS light on?
  13. 1985 Eldorado Engine Stumble & Surge
  14. won't go in gear
  15. used oil cooler lines?
  16. Chirping engine at idle
  17. 1993 Deville 4.9 sumble at iddle.
  18. Coolant "tabs" -- yes or no
  19. '90 DeVille Fuel Sending Unit Problem??
  20. Where to install Prestone flush fitting?
  21. 95 Deville AC compressor noisy
  22. 368 to 4.1 swap 1980 Fleetwood Brougham
  23. Procedure for flushing the cooling system (1990 4.5)
  24. F40 & F49 ?'s
  25. ISC part#
  26. I got a GREAT deal, I think!
  27. I wanna drive my Cadi
  28. Coolant Fan Problems
  29. Fuel injector problem
  30. 95 4.9 deville no spark???
  31. Current drain
  32. radiator/cooling system suggestions
  33. Stump the experts!
  34. no spark
  35. Why Do Some 4.x Engines get 26+MPG, Others <18 MPG Highway
  36. 1991 Cadillac Deville Runs Rough Weak Spark HELP
  37. Thermostatic Air Cleaner (THERMAC) location?
  38. Set timing mode problem!!!!! Please help!
  39. possible to fix myself?
  40. Best strut/axle solution for a '90 DeVille?
  41. 4.1 engine knock
  42. 1995 Deville 4.9 lower cooling hose question
  43. HT4100 Noise Just Started Today
  44. 1989 Seville fan comes cycles on and off when ignition is off
  45. 2000 Seville misfire. new to cadillac
  46. 1995 4.9 Misfiring at WOT
  47. Thermac?
  48. How long will a 4.5 DeVille last?
  49. Intermittent starting.
  50. 92 Deville 4.9 governed?
  51. ISC trouble! Help!
  52. need some help with my new pita
  53. EGR problem or ????
  54. Where is the Cruise control's fuse
  55. 95 devile ignition coil install help!!!
  56. would this work as a replacement for the 4.9L transmission fluid cooler?
  57. 1990 fleetwood code troubles please help!!
  58. What's the difference between ignition modules?
  59. Very strange engine problem 4.9L =HELP=
  60. 92 Deville 4.9 miss at idle
  61. 92 Deville blown headgasket or intake manifold?
  62. 1995 devile "service engine soon" light comes out , need help
  63. 91 Sedan DeVille Stall
  64. 1985 DeVille allternator wire (brown)
  65. 88 DeVille ELC not functioning
  66. 1988 DeVille Motor Mount Help
  67. heater hoses, any tips how to get these out?
  68. strut/axle/transmisiion problem
  69. Power Steering Woes
  70. flushing radiator fluid
  71. Break Release?
  72. '83 Eldorado with HT4100 V8, Rebuild or Replace?
  73. 89 coup deville coolant leak
  74. removeing crankshaft pulley bolt
  75. Back to my coolant flow problems
  76. help needed "no charge" light 83 eldorado 4.1
  77. Quick, Simple Question.
  78. 84 coupeD 4.1
  79. Engine Compartment Diagram Needed
  80. Re-install distributor
  81. Where to get a water pump pulley
  82. Don't deal with Remanufactured.com
  83. 1982 Cadillac Fleetwood. Code 52 PCM Reset. Dead Alternator. And my friends screw up.
  84. Vacuum on 4.5 Seville
  85. Alternator Bracket for Eldorado '85
  86. Different 4.1s?
  87. 91 Sedan Deville 4.9L CAR WON'T START
  88. 1992 Cadillac DeVille FOR SALE!!!!
  89. Fuel Injector 4.5
  90. 91 seville suspension dryer
  91. Voltage discrepancies
  92. Best way to clean out dead gas residue in tank?
  93. 4.9 map sensor problem?
  94. '91 Fleetwood Coupe has demons under the hood
  95. Replaced Head Gasket
  96. Looking for online source for TVS Switch for 85 HT4100
  97. I plan to make more of an appearance here...
  98. 93 4.9 motor
  99. intake manifold insides
  100. ISC pricing?
  101. coolant leak (pics)
  102. 91 seville heater control valve?
  103. 4.1 swap
  104. replacement valve covers
  105. 1992 DeVille Tune Up
  106. surging, only when warm
  107. 91 seville 4.9l owners manual
  108. Won't start. E12 .
  109. 4.9 wont stay running/wont start
  110. Anybody have a 91 seville 4.9l
  111. 1990 deville won't stay running
  112. 4.9L Spark Knock
  113. seperating engine and transmission
  114. 4.1 to Olds 403 swap
  115. 1994 cadillac sedan deville 4.9l please help!!
  116. ISC plunger question
  117. weird noise then belt pops off
  118. 91 seville 4.9 wheels?
  119. Service soon - refer to owners manual
  120. 91 seville trunk pull-down motor
  121. My engine build up
  122. PO39 and IO39 codes
  123. Car will not start-Distributor
  124. wats the MAP sensor
  125. high side temperature sensor circuit
  126. wats history after a code mean and how do i refesh list
  127. 92 deville wont start
  128. unbolting torque converter from flexplate
  129. Cracked head or head gasket
  130. 1983 4.1 Vs. 1985 4.1
  131. Another Anti Freeze question
  132. New problem
  133. Mixed up spark plug wire chaos!!!!!
  134. 91 seville 4.9 fan problems
  135. 94 Deville 4.9L
  136. 94 Cadillac SLS Idle Probelms
  137. Where to purchase a new ISC motor?
  138. Relay
  139. Question
  140. Head Bolt Torque Specifications?
  141. gasket question
  142. How hard it is to remove intake manifold???
  143. Diagram
  144. Real problem
  145. Extra HP & Torque
  146. How to adjust ISC
  147. replaced waterpump
  148. "Sail on" after cleaning throttle body
  149. Exhaust Gas in Radiator
  150. 2003 dhs trouble code p0300
  151. Cadillac trouble
  152. Cadillac trouble
  153. 1994 Deville leaking coolant
  154. 83 4.1 misfiring bad when running cold at constant speed
  155. Engine (4.1) won't start, stumbling when starting
  156. Dipstick doesn't match crankcase oil level
  157. The end is near? The end is here?
  158. Changing the FDR: What do I need?
  159. loss of hp?
  160. 93 eldo 4.9 overheating
  161. 93 exhaust question
  162. Prolly a dumb question:
  163. New Distributor Help
  164. water drowning out 84 caddy
  165. is it my spark plugs?
  166. Finally....Start-Up
  167. New problem: racing after cold startups now
  168. Common 4.1L Problems
  169. 91 deville surging idle
  170. '85 Fleetwood FWD 140K+ Miles! Hose questions
  171. Still got a miss at times
  172. Distributor won't drop.....
  173. '94 Sedan Deville, Parting out...Complete car
  174. 4.5 mess
  175. 4.9 intake gaskets
  176. Vacuum tube replacement
  177. Changing belts on 84 deville
  178. Coolant leak from WP cover
  179. Distributor Compatiblity 4.9 into a 4.5?
  180. Heater Core Removal 83 Eldorado
  181. 91 deville needs head gasket
  182. Sluggish acceleration
  183. 93 Eldorado clunking under load
  184. 4.1 just cuts out then comes back
  185. Oil pan gasket: Is it worth it?
  186. 4x engine as boat power?
  187. Cat converter exhaust flange
  188. Cooling system sealant
  189. 1983 4.1, 6 mpg in town driving ????
  190. 4.9 Headgasket ?
  191. E13, e44
  192. Help w/ Temp Fan Light on '85 Deville
  193. 15w-40 too heavy for a 61k mile 4.5?
  194. Operating temp: Whats the norm?
  195. The Last Stretch:Tranny Mods.
  196. timing marks
  197. Distributor Wiring Harness Compatability?
  198. Going from conventional to Synthetic - Good or bad?
  199. E46 code
  200. E98?
  201. 4.9 Lifespan?
  202. Return Line Pressure?
  203. 92 seville 4.9L engine problem
  204. alternator question
  205. Odd "Cold" Idle
  206. Rotten 4.1 do they just normally overheat ???
  207. Starter Change
  208. 83 Eldorado No power to HVAC controls or Mileage calculator
  209. Cam position sensor replacement
  210. A.L.D.L connector, setting timing
  211. The 93 SDV is dead!
  212. 1989 Seville Transmission shifts - Vac Modulator?
  213. thinking about 1994 Sedan deville
  214. Will there be a mess
  215. 1990 Eldorado runs ruff
  216. The 6 flexplate to crankshaft bolts
  217. Coolant
  218. Well, found one of my oil leaks...
  219. 92 Deville Shuts of suddenly
  220. Exhaust manifold gasket set
  221. Fuel Pump Cheat?
  222. 1995 Devile 4.9 Oil Leak
  223. Found my oil-leak
  224. Check this guy out: 91 Seville with 'questionable' mods
  225. Hose substution
  226. Thermostat
  227. Which of these?
  228. New Performance 4.9 Injector Mod. and Adjustable Fuel Pressure Regulator
  229. 1994 Cadillac Deville High Idle
  230. 91 deville, dead miss
  231. heater controls 92 eldo.
  232. How many tablets or bars leak?
  233. Distributor Help
  234. Proper Spark Plug Gap for 4.5
  235. 1990 Deville 4.5 help
  236. Yes, I Did It
  237. Harmonic Balance
  238. ECM Swap! PASSkey Question...
  239. Accel Performance Ignition Module: Real or B/S?
  240. 4100 engine temperature
  241. '90 4.5 No Cam Sensor Reference Signal Journey Through Hell!
  242. Ongoing Issues, running rough poor idle
  243. Trans cooler flush
  244. screw the whole thing - i hate the 4100... swap ideas?
  245. oil sender location - 4.1
  246. code po23??? Any thoughts
  247. 4.9 exhaust info
  248. Throttle valve cable '85
  249. oil pressure light came on - towed home
  250. clackin noise 4.9 deville