: HT4100 4.1, 4.5, 4.9



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