: HT4100 4.1, 4.5, 4.9



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  1. How many miles?
  2. water pump wrestling
  3. Head gasket change
  4. Error code 34 on 83 deville
  5. Advanced Timing
  6. gearbox oil..?
  7. Is gas safe
  8. Using a laptop for real-time OBD
  9. '94 4.9 rough running
  10. 4.9 litre engine firing order
  11. 1986 Eldorado HT4100: No Start-No Codes
  12. 1986 Eldorado HT4100
  13. '91 Deville 4.9L surging
  14. 94 4.9L will not start. Need help
  15. Idling Down rough?
  16. 86 Eldorado Fuel Pump
  17. 91 fleewood won't start code31
  18. Did I blow head gasket on 93 deville?? Please Help!
  19. Vaccum Line Problem?
  20. Replacing a blower motor - what's the secret?
  21. oil pump driveshaft is loose???
  22. 1984 Cadillac Eldorado (my topless baby)
  23. Hard starts when hot?
  24. oil pressure gauge installation
  25. couple of questions regarding oil pump
  26. HT4100 Cooling water doesn't circulate (87' Seville)
  27. removing oil pan on RWD 4.1
  28. Turbo 4.1 Allante
  29. radiator caps with zinc anode
  30. What a mess!!!
  31. High Side AC Hose Information Needed
  32. Squeeling betty
  33. 92 deville no acceleration when hot
  34. Where is the PCV valve on the 4.9L?
  35. Performance?
  36. 93 Seville 4.9 4t60E
  37. Vacuum Line Routing Egr Solenoid & Regulator
  38. Bad CTS?? (coolant senor)
  39. Name this tube! 90 DeVille
  40. 4.5 Fuel Injector Issues
  41. HT4100:major oil leak
  42. What engine/trans appear in various Cadillacs?
  43. FWD Engine Removal
  44. Coolant Change Question
  45. Stripped4.9 headbolt
  46. Fooling the Inlet Air Temp (IAT) sensor?
  47. exhaust manifold installation question
  48. PCM FI Driver Damage ? (Re-visited)
  49. 4.9L Main Bearing Thump
  50. 1993 4.9 rough at low RPM
  51. ht4100 issues
  52. PCM FI Driver Damage ?
  53. DeVille 4.9 Throttle body spacer
  54. Throttle body spacer
  55. Hot exhaust
  56. E24?
  57. 4.9 Water Pump....OR ?
  58. Stalling and Surging--Need help
  59. Relocate the oil filter on your 4.9
  60. SSS light on?
  61. 1985 Eldorado Engine Stumble & Surge
  62. won't go in gear
  63. used oil cooler lines?
  64. Chirping engine at idle
  65. 1993 Deville 4.9 sumble at iddle.
  66. Coolant "tabs" -- yes or no
  67. '90 DeVille Fuel Sending Unit Problem??
  68. Where to install Prestone flush fitting?
  69. 95 Deville AC compressor noisy
  70. 368 to 4.1 swap 1980 Fleetwood Brougham
  71. Procedure for flushing the cooling system (1990 4.5)
  72. F40 & F49 ?'s
  73. ISC part#
  74. I got a GREAT deal, I think!
  75. I wanna drive my Cadi
  76. Coolant Fan Problems
  77. Fuel injector problem
  78. 95 4.9 deville no spark???
  79. Current drain
  80. radiator/cooling system suggestions
  81. Stump the experts!
  82. no spark
  83. Why Do Some 4.x Engines get 26+MPG, Others <18 MPG Highway
  84. 1991 Cadillac Deville Runs Rough Weak Spark HELP
  85. Thermostatic Air Cleaner (THERMAC) location?
  86. Set timing mode problem!!!!! Please help!
  87. possible to fix myself?
  88. Best strut/axle solution for a '90 DeVille?
  89. 4.1 engine knock
  90. 1995 Deville 4.9 lower cooling hose question
  91. HT4100 Noise Just Started Today
  92. 1989 Seville fan comes cycles on and off when ignition is off
  93. 2000 Seville misfire. new to cadillac
  94. 1995 4.9 Misfiring at WOT
  95. Thermac?
  96. How long will a 4.5 DeVille last?
  97. Intermittent starting.
  98. 92 Deville 4.9 governed?
  99. ISC trouble! Help!
  100. need some help with my new pita
  101. EGR problem or ????
  102. Where is the Cruise control's fuse
  103. 95 devile ignition coil install help!!!
  104. would this work as a replacement for the 4.9L transmission fluid cooler?
  105. 1990 fleetwood code troubles please help!!
  106. What's the difference between ignition modules?
  107. Very strange engine problem 4.9L =HELP=
  108. 92 Deville 4.9 miss at idle
  109. 92 Deville blown headgasket or intake manifold?
  110. 1995 devile "service engine soon" light comes out , need help
  111. 91 Sedan DeVille Stall
  112. 1985 DeVille allternator wire (brown)
  113. 88 DeVille ELC not functioning
  114. 1988 DeVille Motor Mount Help
  115. heater hoses, any tips how to get these out?
  116. strut/axle/transmisiion problem
  117. Power Steering Woes
  118. flushing radiator fluid
  119. Break Release?
  120. '83 Eldorado with HT4100 V8, Rebuild or Replace?
  121. 89 coup deville coolant leak
  122. removeing crankshaft pulley bolt
  123. Back to my coolant flow problems
  124. help needed "no charge" light 83 eldorado 4.1
  125. Quick, Simple Question.
  126. 84 coupeD 4.1
  127. Engine Compartment Diagram Needed
  128. Re-install distributor
  129. Where to get a water pump pulley
  130. Don't deal with Remanufactured.com
  131. 1982 Cadillac Fleetwood. Code 52 PCM Reset. Dead Alternator. And my friends screw up.
  132. Vacuum on 4.5 Seville
  133. Alternator Bracket for Eldorado '85
  134. Different 4.1s?
  135. 91 Sedan Deville 4.9L CAR WON'T START
  136. 1992 Cadillac DeVille FOR SALE!!!!
  137. Fuel Injector 4.5
  138. 91 seville suspension dryer
  139. Voltage discrepancies
  140. Best way to clean out dead gas residue in tank?
  141. 4.9 map sensor problem?
  142. '91 Fleetwood Coupe has demons under the hood
  143. Replaced Head Gasket
  144. Looking for online source for TVS Switch for 85 HT4100
  145. I plan to make more of an appearance here...
  146. 93 4.9 motor
  147. intake manifold insides
  148. ISC pricing?
  149. coolant leak (pics)
  150. 91 seville heater control valve?
  151. 4.1 swap
  152. replacement valve covers
  153. 1992 DeVille Tune Up
  154. surging, only when warm
  155. 91 seville 4.9l owners manual
  156. Won't start. E12 .
  157. 4.9 wont stay running/wont start
  158. Anybody have a 91 seville 4.9l
  159. 1990 deville won't stay running
  160. 4.9L Spark Knock
  161. seperating engine and transmission
  162. 4.1 to Olds 403 swap
  163. 1994 cadillac sedan deville 4.9l please help!!
  164. ISC plunger question
  165. weird noise then belt pops off
  166. 91 seville 4.9 wheels?
  167. Service soon - refer to owners manual
  168. 91 seville trunk pull-down motor
  169. My engine build up
  170. PO39 and IO39 codes
  171. Car will not start-Distributor
  172. wats the MAP sensor
  173. high side temperature sensor circuit
  174. wats history after a code mean and how do i refesh list
  175. 92 deville wont start
  176. unbolting torque converter from flexplate
  177. Cracked head or head gasket
  178. 1983 4.1 Vs. 1985 4.1
  179. Another Anti Freeze question
  180. New problem
  181. Mixed up spark plug wire chaos!!!!!
  182. 91 seville 4.9 fan problems
  183. 94 Deville 4.9L
  184. 94 Cadillac SLS Idle Probelms
  185. Where to purchase a new ISC motor?
  186. Relay
  187. Question
  188. Head Bolt Torque Specifications?
  189. gasket question
  190. How hard it is to remove intake manifold???
  191. Diagram
  192. Real problem
  193. Extra HP & Torque
  194. How to adjust ISC
  195. replaced waterpump
  196. "Sail on" after cleaning throttle body
  197. Exhaust Gas in Radiator
  198. 2003 dhs trouble code p0300
  199. Cadillac trouble
  200. Cadillac trouble
  201. 1994 Deville leaking coolant
  202. 83 4.1 misfiring bad when running cold at constant speed
  203. Engine (4.1) won't start, stumbling when starting
  204. Dipstick doesn't match crankcase oil level
  205. The end is near? The end is here?
  206. Changing the FDR: What do I need?
  207. loss of hp?
  208. 93 eldo 4.9 overheating
  209. 93 exhaust question
  210. Prolly a dumb question:
  211. New Distributor Help
  212. water drowning out 84 caddy
  213. is it my spark plugs?
  214. Finally....Start-Up
  215. New problem: racing after cold startups now
  216. Common 4.1L Problems
  217. 91 deville surging idle
  218. '85 Fleetwood FWD 140K+ Miles! Hose questions
  219. Still got a miss at times
  220. Distributor won't drop.....
  221. '94 Sedan Deville, Parting out...Complete car
  222. 4.5 mess
  223. 4.9 intake gaskets
  224. Vacuum tube replacement
  225. Changing belts on 84 deville
  226. Coolant leak from WP cover
  227. Distributor Compatiblity 4.9 into a 4.5?
  228. Heater Core Removal 83 Eldorado
  229. 91 deville needs head gasket
  230. Sluggish acceleration
  231. 93 Eldorado clunking under load
  232. 4.1 just cuts out then comes back
  233. Oil pan gasket: Is it worth it?
  234. 4x engine as boat power?
  235. Cat converter exhaust flange
  236. Cooling system sealant
  237. 1983 4.1, 6 mpg in town driving ????
  238. 4.9 Headgasket ?
  239. E13, e44
  240. Help w/ Temp Fan Light on '85 Deville
  241. 15w-40 too heavy for a 61k mile 4.5?
  242. Operating temp: Whats the norm?
  243. The Last Stretch:Tranny Mods.
  244. timing marks
  245. Distributor Wiring Harness Compatability?
  246. Going from conventional to Synthetic - Good or bad?
  247. E46 code
  248. E98?
  249. 4.9 Lifespan?
  250. Return Line Pressure?