: HT4100 4.1, 4.5, 4.9



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  1. Hard starts when hot?
  2. oil pressure gauge installation
  3. couple of questions regarding oil pump
  4. HT4100 Cooling water doesn't circulate (87' Seville)
  5. removing oil pan on RWD 4.1
  6. Turbo 4.1 Allante
  7. radiator caps with zinc anode
  8. What a mess!!!
  9. High Side AC Hose Information Needed
  10. Squeeling betty
  11. 92 deville no acceleration when hot
  12. Where is the PCV valve on the 4.9L?
  13. Performance?
  14. 93 Seville 4.9 4t60E
  15. Vacuum Line Routing Egr Solenoid & Regulator
  16. Bad CTS?? (coolant senor)
  17. Name this tube! 90 DeVille
  18. 4.5 Fuel Injector Issues
  19. HT4100:major oil leak
  20. What engine/trans appear in various Cadillacs?
  21. FWD Engine Removal
  22. Coolant Change Question
  23. Stripped4.9 headbolt
  24. Fooling the Inlet Air Temp (IAT) sensor?
  25. exhaust manifold installation question
  26. PCM FI Driver Damage ? (Re-visited)
  27. 4.9L Main Bearing Thump
  28. 1993 4.9 rough at low RPM
  29. ht4100 issues
  30. PCM FI Driver Damage ?
  31. DeVille 4.9 Throttle body spacer
  32. Throttle body spacer
  33. Hot exhaust
  34. E24?
  35. 4.9 Water Pump....OR ?
  36. Stalling and Surging--Need help
  37. Relocate the oil filter on your 4.9
  38. SSS light on?
  39. 1985 Eldorado Engine Stumble & Surge
  40. won't go in gear
  41. used oil cooler lines?
  42. Chirping engine at idle
  43. 1993 Deville 4.9 sumble at iddle.
  44. Coolant "tabs" -- yes or no
  45. '90 DeVille Fuel Sending Unit Problem??
  46. Where to install Prestone flush fitting?
  47. 95 Deville AC compressor noisy
  48. 368 to 4.1 swap 1980 Fleetwood Brougham
  49. Procedure for flushing the cooling system (1990 4.5)
  50. F40 & F49 ?'s
  51. ISC part#
  52. I got a GREAT deal, I think!
  53. I wanna drive my Cadi
  54. Coolant Fan Problems
  55. Fuel injector problem
  56. 95 4.9 deville no spark???
  57. Current drain
  58. radiator/cooling system suggestions
  59. Stump the experts!
  60. no spark
  61. Why Do Some 4.x Engines get 26+MPG, Others <18 MPG Highway
  62. 1991 Cadillac Deville Runs Rough Weak Spark HELP
  63. Thermostatic Air Cleaner (THERMAC) location?
  64. Set timing mode problem!!!!! Please help!
  65. possible to fix myself?
  66. Best strut/axle solution for a '90 DeVille?
  67. 4.1 engine knock
  68. 1995 Deville 4.9 lower cooling hose question
  69. HT4100 Noise Just Started Today
  70. 1989 Seville fan comes cycles on and off when ignition is off
  71. 2000 Seville misfire. new to cadillac
  72. 1995 4.9 Misfiring at WOT
  73. Thermac?
  74. How long will a 4.5 DeVille last?
  75. Intermittent starting.
  76. 92 Deville 4.9 governed?
  77. ISC trouble! Help!
  78. need some help with my new pita
  79. EGR problem or ????
  80. Where is the Cruise control's fuse
  81. 95 devile ignition coil install help!!!
  82. would this work as a replacement for the 4.9L transmission fluid cooler?
  83. 1990 fleetwood code troubles please help!!
  84. What's the difference between ignition modules?
  85. Very strange engine problem 4.9L =HELP=
  86. 92 Deville 4.9 miss at idle
  87. 92 Deville blown headgasket or intake manifold?
  88. 1995 devile "service engine soon" light comes out , need help
  89. 91 Sedan DeVille Stall
  90. 1985 DeVille allternator wire (brown)
  91. 88 DeVille ELC not functioning
  92. 1988 DeVille Motor Mount Help
  93. heater hoses, any tips how to get these out?
  94. strut/axle/transmisiion problem
  95. Power Steering Woes
  96. flushing radiator fluid
  97. Break Release?
  98. '83 Eldorado with HT4100 V8, Rebuild or Replace?
  99. 89 coup deville coolant leak
  100. removeing crankshaft pulley bolt
  101. Back to my coolant flow problems
  102. help needed "no charge" light 83 eldorado 4.1
  103. Quick, Simple Question.
  104. 84 coupeD 4.1
  105. Engine Compartment Diagram Needed
  106. Re-install distributor
  107. Where to get a water pump pulley
  108. Don't deal with Remanufactured.com
  109. 1982 Cadillac Fleetwood. Code 52 PCM Reset. Dead Alternator. And my friends screw up.
  110. Vacuum on 4.5 Seville
  111. Alternator Bracket for Eldorado '85
  112. Different 4.1s?
  113. 91 Sedan Deville 4.9L CAR WON'T START
  114. 1992 Cadillac DeVille FOR SALE!!!!
  115. Fuel Injector 4.5
  116. 91 seville suspension dryer
  117. Voltage discrepancies
  118. Best way to clean out dead gas residue in tank?
  119. 4.9 map sensor problem?
  120. '91 Fleetwood Coupe has demons under the hood
  121. Replaced Head Gasket
  122. Looking for online source for TVS Switch for 85 HT4100
  123. I plan to make more of an appearance here...
  124. 93 4.9 motor
  125. intake manifold insides
  126. ISC pricing?
  127. coolant leak (pics)
  128. 91 seville heater control valve?
  129. 4.1 swap
  130. replacement valve covers
  131. 1992 DeVille Tune Up
  132. surging, only when warm
  133. 91 seville 4.9l owners manual
  134. Won't start. E12 .
  135. 4.9 wont stay running/wont start
  136. Anybody have a 91 seville 4.9l
  137. 1990 deville won't stay running
  138. 4.9L Spark Knock
  139. seperating engine and transmission
  140. 4.1 to Olds 403 swap
  141. 1994 cadillac sedan deville 4.9l please help!!
  142. ISC plunger question
  143. weird noise then belt pops off
  144. 91 seville 4.9 wheels?
  145. Service soon - refer to owners manual
  146. 91 seville trunk pull-down motor
  147. My engine build up
  148. PO39 and IO39 codes
  149. Car will not start-Distributor
  150. wats the MAP sensor
  151. high side temperature sensor circuit
  152. wats history after a code mean and how do i refesh list
  153. 92 deville wont start
  154. unbolting torque converter from flexplate
  155. Cracked head or head gasket
  156. 1983 4.1 Vs. 1985 4.1
  157. Another Anti Freeze question
  158. New problem
  159. Mixed up spark plug wire chaos!!!!!
  160. 91 seville 4.9 fan problems
  161. 94 Deville 4.9L
  162. 94 Cadillac SLS Idle Probelms
  163. Where to purchase a new ISC motor?
  164. Relay
  165. Question
  166. Head Bolt Torque Specifications?
  167. gasket question
  168. How hard it is to remove intake manifold???
  169. Diagram
  170. Real problem
  171. Extra HP & Torque
  172. How to adjust ISC
  173. replaced waterpump
  174. "Sail on" after cleaning throttle body
  175. Exhaust Gas in Radiator
  176. 2003 dhs trouble code p0300
  177. Cadillac trouble
  178. Cadillac trouble
  179. 1994 Deville leaking coolant
  180. 83 4.1 misfiring bad when running cold at constant speed
  181. Engine (4.1) won't start, stumbling when starting
  182. Dipstick doesn't match crankcase oil level
  183. The end is near? The end is here?
  184. Changing the FDR: What do I need?
  185. loss of hp?
  186. 93 eldo 4.9 overheating
  187. 93 exhaust question
  188. Prolly a dumb question:
  189. New Distributor Help
  190. water drowning out 84 caddy
  191. is it my spark plugs?
  192. Finally....Start-Up
  193. New problem: racing after cold startups now
  194. Common 4.1L Problems
  195. 91 deville surging idle
  196. '85 Fleetwood FWD 140K+ Miles! Hose questions
  197. Still got a miss at times
  198. Distributor won't drop.....
  199. '94 Sedan Deville, Parting out...Complete car
  200. 4.5 mess
  201. 4.9 intake gaskets
  202. Vacuum tube replacement
  203. Changing belts on 84 deville
  204. Coolant leak from WP cover
  205. Distributor Compatiblity 4.9 into a 4.5?
  206. Heater Core Removal 83 Eldorado
  207. 91 deville needs head gasket
  208. Sluggish acceleration
  209. 93 Eldorado clunking under load
  210. 4.1 just cuts out then comes back
  211. Oil pan gasket: Is it worth it?
  212. 4x engine as boat power?
  213. Cat converter exhaust flange
  214. Cooling system sealant
  215. 1983 4.1, 6 mpg in town driving ????
  216. 4.9 Headgasket ?
  217. E13, e44
  218. Help w/ Temp Fan Light on '85 Deville
  219. 15w-40 too heavy for a 61k mile 4.5?
  220. Operating temp: Whats the norm?
  221. The Last Stretch:Tranny Mods.
  222. timing marks
  223. Distributor Wiring Harness Compatability?
  224. Going from conventional to Synthetic - Good or bad?
  225. E46 code
  226. E98?
  227. 4.9 Lifespan?
  228. Return Line Pressure?
  229. 92 seville 4.9L engine problem
  230. alternator question
  231. Odd "Cold" Idle
  232. Rotten 4.1 do they just normally overheat ???
  233. Starter Change
  234. 83 Eldorado No power to HVAC controls or Mileage calculator
  235. Cam position sensor replacement
  236. A.L.D.L connector, setting timing
  237. The 93 SDV is dead!
  238. 1989 Seville Transmission shifts - Vac Modulator?
  239. thinking about 1994 Sedan deville
  240. Will there be a mess
  241. 1990 Eldorado runs ruff
  242. The 6 flexplate to crankshaft bolts
  243. Coolant
  244. Well, found one of my oil leaks...
  245. 92 Deville Shuts of suddenly
  246. Exhaust manifold gasket set
  247. Fuel Pump Cheat?
  248. 1995 Devile 4.9 Oil Leak
  249. Found my oil-leak
  250. Check this guy out: 91 Seville with 'questionable' mods