: HT4100 4.1, 4.5, 4.9



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