: HT4100 4.1, 4.5, 4.9



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  1. Climate control Problem???
  2. 1985 Deville Coolant Leak
  3. engine popping
  4. 91 Coupe replaced injectors now blowing smoke
  5. 1995 Deville Hi Performance Ideas anybody????
  6. 4100 vacuum diagram
  7. 4.1 belt tensioner
  8. HT 4.X base timing question
  9. 2005 4.1 PCV Valve
  10. 1985 DeVille Collant Temp Fan Light
  11. new to me 92 sdv,need some help
  12. just wondering
  13. 87 Eldo Cash for Clunker: Heresy?
  14. sudden engine probs
  15. brand new problem
  16. 94 4.9 Distributor question
  17. Plastic Radiator Side Tanks
  18. How to check cat. converter?
  19. 94 Deville 4.9 where is the governor
  20. 92 Eldo problem
  21. Cruise control gone 4.1 87'seville
  22. 94 Sedan Deville A/C Question
  23. fuel injectors interchange?
  24. ht4100 giving me problems
  25. 4.1L tune up and oil on manifold.
  26. Need help on a '90 Cadillac Fleetwood FWD
  27. 91 deville service engine soon
  28. DIN radio in '92 Eldorado
  29. Your best 4.X MPG?
  30. 1991 4.9
  31. 90 SDV Repeated E22 TPS Code
  32. silly question
  33. you helped me last time (weird fuel pump)
  34. 90 SDV Repeated E22 TPS Code
  35. 4100 engine change. Need input.
  36. egnine oil cooler hose assemblies
  37. 92 4.9 starter replacement
  38. How many miles?
  39. water pump wrestling
  40. Head gasket change
  41. Error code 34 on 83 deville
  42. Advanced Timing
  43. gearbox oil..?
  44. Is gas safe
  45. Using a laptop for real-time OBD
  46. '94 4.9 rough running
  47. 4.9 litre engine firing order
  48. 1986 Eldorado HT4100: No Start-No Codes
  49. 1986 Eldorado HT4100
  50. '91 Deville 4.9L surging
  51. 94 4.9L will not start. Need help
  52. Idling Down rough?
  53. 86 Eldorado Fuel Pump
  54. 91 fleewood won't start code31
  55. Did I blow head gasket on 93 deville?? Please Help!
  56. Vaccum Line Problem?
  57. Replacing a blower motor - what's the secret?
  58. oil pump driveshaft is loose???
  59. 1984 Cadillac Eldorado (my topless baby)
  60. Hard starts when hot?
  61. oil pressure gauge installation
  62. couple of questions regarding oil pump
  63. HT4100 Cooling water doesn't circulate (87' Seville)
  64. removing oil pan on RWD 4.1
  65. Turbo 4.1 Allante
  66. radiator caps with zinc anode
  67. What a mess!!!
  68. High Side AC Hose Information Needed
  69. Squeeling betty
  70. 92 deville no acceleration when hot
  71. Where is the PCV valve on the 4.9L?
  72. Performance?
  73. 93 Seville 4.9 4t60E
  74. Vacuum Line Routing Egr Solenoid & Regulator
  75. Bad CTS?? (coolant senor)
  76. Name this tube! 90 DeVille
  77. 4.5 Fuel Injector Issues
  78. HT4100:major oil leak
  79. What engine/trans appear in various Cadillacs?
  80. FWD Engine Removal
  81. Coolant Change Question
  82. Stripped4.9 headbolt
  83. Fooling the Inlet Air Temp (IAT) sensor?
  84. exhaust manifold installation question
  85. PCM FI Driver Damage ? (Re-visited)
  86. 4.9L Main Bearing Thump
  87. 1993 4.9 rough at low RPM
  88. ht4100 issues
  89. PCM FI Driver Damage ?
  90. DeVille 4.9 Throttle body spacer
  91. Throttle body spacer
  92. Hot exhaust
  93. E24?
  94. 4.9 Water Pump....OR ?
  95. Stalling and Surging--Need help
  96. Relocate the oil filter on your 4.9
  97. SSS light on?
  98. 1985 Eldorado Engine Stumble & Surge
  99. won't go in gear
  100. used oil cooler lines?
  101. Chirping engine at idle
  102. 1993 Deville 4.9 sumble at iddle.
  103. Coolant "tabs" -- yes or no
  104. '90 DeVille Fuel Sending Unit Problem??
  105. Where to install Prestone flush fitting?
  106. 95 Deville AC compressor noisy
  107. 368 to 4.1 swap 1980 Fleetwood Brougham
  108. Procedure for flushing the cooling system (1990 4.5)
  109. F40 & F49 ?'s
  110. ISC part#
  111. I got a GREAT deal, I think!
  112. I wanna drive my Cadi
  113. Coolant Fan Problems
  114. Fuel injector problem
  115. 95 4.9 deville no spark???
  116. Current drain
  117. radiator/cooling system suggestions
  118. Stump the experts!
  119. no spark
  120. Why Do Some 4.x Engines get 26+MPG, Others <18 MPG Highway
  121. 1991 Cadillac Deville Runs Rough Weak Spark HELP
  122. Thermostatic Air Cleaner (THERMAC) location?
  123. Set timing mode problem!!!!! Please help!
  124. possible to fix myself?
  125. Best strut/axle solution for a '90 DeVille?
  126. 4.1 engine knock
  127. 1995 Deville 4.9 lower cooling hose question
  128. HT4100 Noise Just Started Today
  129. 1989 Seville fan comes cycles on and off when ignition is off
  130. 2000 Seville misfire. new to cadillac
  131. 1995 4.9 Misfiring at WOT
  132. Thermac?
  133. How long will a 4.5 DeVille last?
  134. Intermittent starting.
  135. 92 Deville 4.9 governed?
  136. ISC trouble! Help!
  137. need some help with my new pita
  138. EGR problem or ????
  139. Where is the Cruise control's fuse
  140. 95 devile ignition coil install help!!!
  141. would this work as a replacement for the 4.9L transmission fluid cooler?
  142. 1990 fleetwood code troubles please help!!
  143. What's the difference between ignition modules?
  144. Very strange engine problem 4.9L =HELP=
  145. 92 Deville 4.9 miss at idle
  146. 92 Deville blown headgasket or intake manifold?
  147. 1995 devile "service engine soon" light comes out , need help
  148. 91 Sedan DeVille Stall
  149. 1985 DeVille allternator wire (brown)
  150. 88 DeVille ELC not functioning
  151. 1988 DeVille Motor Mount Help
  152. heater hoses, any tips how to get these out?
  153. strut/axle/transmisiion problem
  154. Power Steering Woes
  155. flushing radiator fluid
  156. Break Release?
  157. '83 Eldorado with HT4100 V8, Rebuild or Replace?
  158. 89 coup deville coolant leak
  159. removeing crankshaft pulley bolt
  160. Back to my coolant flow problems
  161. help needed "no charge" light 83 eldorado 4.1
  162. Quick, Simple Question.
  163. 84 coupeD 4.1
  164. Engine Compartment Diagram Needed
  165. Re-install distributor
  166. Where to get a water pump pulley
  167. Don't deal with Remanufactured.com
  168. 1982 Cadillac Fleetwood. Code 52 PCM Reset. Dead Alternator. And my friends screw up.
  169. Vacuum on 4.5 Seville
  170. Alternator Bracket for Eldorado '85
  171. Different 4.1s?
  172. 91 Sedan Deville 4.9L CAR WON'T START
  173. 1992 Cadillac DeVille FOR SALE!!!!
  174. Fuel Injector 4.5
  175. 91 seville suspension dryer
  176. Voltage discrepancies
  177. Best way to clean out dead gas residue in tank?
  178. 4.9 map sensor problem?
  179. '91 Fleetwood Coupe has demons under the hood
  180. Replaced Head Gasket
  181. Looking for online source for TVS Switch for 85 HT4100
  182. I plan to make more of an appearance here...
  183. 93 4.9 motor
  184. intake manifold insides
  185. ISC pricing?
  186. coolant leak (pics)
  187. 91 seville heater control valve?
  188. 4.1 swap
  189. replacement valve covers
  190. 1992 DeVille Tune Up
  191. surging, only when warm
  192. 91 seville 4.9l owners manual
  193. Won't start. E12 .
  194. 4.9 wont stay running/wont start
  195. Anybody have a 91 seville 4.9l
  196. 1990 deville won't stay running
  197. 4.9L Spark Knock
  198. seperating engine and transmission
  199. 4.1 to Olds 403 swap
  200. 1994 cadillac sedan deville 4.9l please help!!
  201. ISC plunger question
  202. weird noise then belt pops off
  203. 91 seville 4.9 wheels?
  204. Service soon - refer to owners manual
  205. 91 seville trunk pull-down motor
  206. My engine build up
  207. PO39 and IO39 codes
  208. Car will not start-Distributor
  209. wats the MAP sensor
  210. high side temperature sensor circuit
  211. wats history after a code mean and how do i refesh list
  212. 92 deville wont start
  213. unbolting torque converter from flexplate
  214. Cracked head or head gasket
  215. 1983 4.1 Vs. 1985 4.1
  216. Another Anti Freeze question
  217. New problem
  218. Mixed up spark plug wire chaos!!!!!
  219. 91 seville 4.9 fan problems
  220. 94 Deville 4.9L
  221. 94 Cadillac SLS Idle Probelms
  222. Where to purchase a new ISC motor?
  223. Relay
  224. Question
  225. Head Bolt Torque Specifications?
  226. gasket question
  227. How hard it is to remove intake manifold???
  228. Diagram
  229. Real problem
  230. Extra HP & Torque
  231. How to adjust ISC
  232. replaced waterpump
  233. "Sail on" after cleaning throttle body
  234. Exhaust Gas in Radiator
  235. 2003 dhs trouble code p0300
  236. Cadillac trouble
  237. Cadillac trouble
  238. 1994 Deville leaking coolant
  239. 83 4.1 misfiring bad when running cold at constant speed
  240. Engine (4.1) won't start, stumbling when starting
  241. Dipstick doesn't match crankcase oil level
  242. The end is near? The end is here?
  243. Changing the FDR: What do I need?
  244. loss of hp?
  245. 93 eldo 4.9 overheating
  246. 93 exhaust question
  247. Prolly a dumb question:
  248. New Distributor Help
  249. water drowning out 84 caddy
  250. is it my spark plugs?