: HT4100 4.1, 4.5, 4.9



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