: HT4100 4.1, 4.5, 4.9



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  1. 1990 4.5 intake gaskets
  2. Cadillac Deville 4.9l Engine Problem
  3. 4.1 L digital engine
  4. 4.1 Motor? Rattles/Engine Pinging?
  5. 4.9L head bolts 1993
  6. P048 EGR code on 4.9L
  7. What gives?
  8. The Best Kind of Motor Oil For 87 Deville HT4100
  9. i have code E52 - PCM Memory Reset how do i do this ?
  10. Gas mileage gone to hell
  11. idle faster after change timming
  12. 4.9 Power Steering Pulley Slipping
  13. 4.9 Upper a/c compressor bracket
  14. 4.9 knock
  15. high fuel consumption..?
  16. 4.9 issue...
  17. Drive belt routing for 4.9L ???
  18. 92 STS Electrical Short or Drain
  19. where to buy mounting bracket for PS pump?
  20. 1993 Sedan Deville Transmission Swap
  21. rpm question
  22. Code 26 & 41 '91 4.9
  23. Question re: engine swap for 85 FW coupe RWD
  24. 1993 Cadillac DeVille 4.9L Distributor Shot
  25. Fuel pump and FPR recommendations?
  26. Could bad motor mounts cause stumbling on light acceleration
  27. Judgement Call - No Heat 93 Deville
  28. Motor is very clean in my 4.9
  29. Cold Air Intake/Exhaust
  30. 84 eldo. antena
  31. Symptoms of faulty distributor pick up coil
  32. I finally switched from dexicool
  33. Misfire at idle and sumble under acceleration 93 4.9
  34. Refilling colant reservoir every 2 weeks, misfire at idle
  35. 4.9. Overheating (long post)
  36. 4.9 Pictures and sound clip!
  37. 84 deville 4.1 starting prob's help please
  38. 90 Seville Dies Suddenly....
  39. when should timing chain be replaced on 93 deville 4.9
  40. Motor Mount Replacement
  41. No heat at 90 degrees on climate control 93 caddy
  42. 4.1 V8 PUlleys!
  43. 93 deville sits very low in rear time for shocks and coil spring?
  44. Adding NITROUS to a 4.5
  45. Preventive maintenance ('90 with 28k miles)
  46. 4.1 Issues with 85 Eldorado -- Can you help?
  47. Best oil Mobil 1 High mileage for 93 deville 4.9 with 102,000 miles
  48. PLEASE HELP 93 DEVILLE 4.9 Stumble under light acceleration
  49. 4.9 What's the best antifreeze to use?
  50. 93 deville surging
  51. 88 ELDO new r134 Failed Twice??
  52. How reliable will my 4.9 be?
  53. Blower fan ideas wanted
  54. 90 deville front cover gasket failure
  55. New Owner with '86 Fleetwood Seventy Five Limo
  56. 4.9 Coolant overfill reservoir not draining into radiator when cold
  57. 1992 Seville 4.9 Liter Removal
  58. ht 4100 to sbc 350 motor mount pad location HELP!
  59. Brakes
  60. 93 deville oil lev
  61. Confused about seal tabs
  62. 84 eldo-4100HT
  63. HT4100 Care and Upkeep
  64. tranny sounds
  65. oil pump again
  66. Mufflers???
  67. 4.9 How long will it last?
  68. 4.5 Reliability
  69. Sawping Out a 4.9
  70. How do you convert 80's model to R134
  71. Have you used sea foam?
  72. distributor wrench
  73. 84 eldo-4100HT
  74. Coolant.
  75. 84 Eldorado Transmission Problems
  76. 1985 Eldorado 4100 engine swap
  77. Da Capts Back with his 4.9 Fiero lots of updates
  78. here we go again, A/C
  79. 84 eldo trouble
  80. help
  81. fuel meter cover gasket...
  82. Makes no sense...
  83. car stutters intermittently under med/heavy acceleration
  84. Missing Antifreeze
  85. Severe Coolant Leak 4.9
  86. peformance chips
  87. 4.9 Bosch GenIII Injector - ??Integrator, Block Learn, x-count, p.w. values??????
  88. won't idle
  89. New code?
  90. Caddy V-8 history
  91. voltage regulator...?
  92. 4.5 running rough at start -- tune up????
  93. e.g.r. valve
  94. 94 Deville Help!!
  95. map sensor
  96. 4.9 aeromotive afpr won't fit!! Help Mr. Illumna
  97. 4.9 throttle body description
  98. Emission test failed
  99. error code 20
  100. break line
  101. 1985 Eldo Gas Leaking out of the Charcoal Can
  102. Distributor Gear Sheared Again...Help!
  103. Climate control Problem???
  104. 1985 Deville Coolant Leak
  105. engine popping
  106. 91 Coupe replaced injectors now blowing smoke
  107. 1995 Deville Hi Performance Ideas anybody????
  108. 4100 vacuum diagram
  109. 4.1 belt tensioner
  110. HT 4.X base timing question
  111. 2005 4.1 PCV Valve
  112. 1985 DeVille Collant Temp Fan Light
  113. new to me 92 sdv,need some help
  114. just wondering
  115. 87 Eldo Cash for Clunker: Heresy?
  116. sudden engine probs
  117. brand new problem
  118. 94 4.9 Distributor question
  119. Plastic Radiator Side Tanks
  120. How to check cat. converter?
  121. 94 Deville 4.9 where is the governor
  122. 92 Eldo problem
  123. Cruise control gone 4.1 87'seville
  124. 94 Sedan Deville A/C Question
  125. fuel injectors interchange?
  126. ht4100 giving me problems
  127. 4.1L tune up and oil on manifold.
  128. Need help on a '90 Cadillac Fleetwood FWD
  129. 91 deville service engine soon
  130. DIN radio in '92 Eldorado
  131. Your best 4.X MPG?
  132. 1991 4.9
  133. 90 SDV Repeated E22 TPS Code
  134. silly question
  135. you helped me last time (weird fuel pump)
  136. 90 SDV Repeated E22 TPS Code
  137. 4100 engine change. Need input.
  138. egnine oil cooler hose assemblies
  139. 92 4.9 starter replacement
  140. How many miles?
  141. water pump wrestling
  142. Head gasket change
  143. Error code 34 on 83 deville
  144. Advanced Timing
  145. gearbox oil..?
  146. Is gas safe
  147. Using a laptop for real-time OBD
  148. '94 4.9 rough running
  149. 4.9 litre engine firing order
  150. 1986 Eldorado HT4100: No Start-No Codes
  151. 1986 Eldorado HT4100
  152. '91 Deville 4.9L surging
  153. 94 4.9L will not start. Need help
  154. Idling Down rough?
  155. 86 Eldorado Fuel Pump
  156. 91 fleewood won't start code31
  157. Did I blow head gasket on 93 deville?? Please Help!
  158. Vaccum Line Problem?
  159. Replacing a blower motor - what's the secret?
  160. oil pump driveshaft is loose???
  161. 1984 Cadillac Eldorado (my topless baby)
  162. Hard starts when hot?
  163. oil pressure gauge installation
  164. couple of questions regarding oil pump
  165. HT4100 Cooling water doesn't circulate (87' Seville)
  166. removing oil pan on RWD 4.1
  167. Turbo 4.1 Allante
  168. radiator caps with zinc anode
  169. What a mess!!!
  170. High Side AC Hose Information Needed
  171. Squeeling betty
  172. 92 deville no acceleration when hot
  173. Where is the PCV valve on the 4.9L?
  174. Performance?
  175. 93 Seville 4.9 4t60E
  176. Vacuum Line Routing Egr Solenoid & Regulator
  177. Bad CTS?? (coolant senor)
  178. Name this tube! 90 DeVille
  179. 4.5 Fuel Injector Issues
  180. HT4100:major oil leak
  181. What engine/trans appear in various Cadillacs?
  182. FWD Engine Removal
  183. Coolant Change Question
  184. Stripped4.9 headbolt
  185. Fooling the Inlet Air Temp (IAT) sensor?
  186. exhaust manifold installation question
  187. PCM FI Driver Damage ? (Re-visited)
  188. 4.9L Main Bearing Thump
  189. 1993 4.9 rough at low RPM
  190. ht4100 issues
  191. PCM FI Driver Damage ?
  192. DeVille 4.9 Throttle body spacer
  193. Throttle body spacer
  194. Hot exhaust
  195. E24?
  196. 4.9 Water Pump....OR ?
  197. Stalling and Surging--Need help
  198. Relocate the oil filter on your 4.9
  199. SSS light on?
  200. 1985 Eldorado Engine Stumble & Surge
  201. won't go in gear
  202. used oil cooler lines?
  203. Chirping engine at idle
  204. 1993 Deville 4.9 sumble at iddle.
  205. Coolant "tabs" -- yes or no
  206. '90 DeVille Fuel Sending Unit Problem??
  207. Where to install Prestone flush fitting?
  208. 95 Deville AC compressor noisy
  209. 368 to 4.1 swap 1980 Fleetwood Brougham
  210. Procedure for flushing the cooling system (1990 4.5)
  211. F40 & F49 ?'s
  212. ISC part#
  213. I got a GREAT deal, I think!
  214. I wanna drive my Cadi
  215. Coolant Fan Problems
  216. Fuel injector problem
  217. 95 4.9 deville no spark???
  218. Current drain
  219. radiator/cooling system suggestions
  220. Stump the experts!
  221. no spark
  222. Why Do Some 4.x Engines get 26+MPG, Others <18 MPG Highway
  223. 1991 Cadillac Deville Runs Rough Weak Spark HELP
  224. Thermostatic Air Cleaner (THERMAC) location?
  225. Set timing mode problem!!!!! Please help!
  226. possible to fix myself?
  227. Best strut/axle solution for a '90 DeVille?
  228. 4.1 engine knock
  229. 1995 Deville 4.9 lower cooling hose question
  230. HT4100 Noise Just Started Today
  231. 1989 Seville fan comes cycles on and off when ignition is off
  232. 2000 Seville misfire. new to cadillac
  233. 1995 4.9 Misfiring at WOT
  234. Thermac?
  235. How long will a 4.5 DeVille last?
  236. Intermittent starting.
  237. 92 Deville 4.9 governed?
  238. ISC trouble! Help!
  239. need some help with my new pita
  240. EGR problem or ????
  241. Where is the Cruise control's fuse
  242. 95 devile ignition coil install help!!!
  243. would this work as a replacement for the 4.9L transmission fluid cooler?
  244. 1990 fleetwood code troubles please help!!
  245. What's the difference between ignition modules?
  246. Very strange engine problem 4.9L =HELP=
  247. 92 Deville 4.9 miss at idle
  248. 92 Deville blown headgasket or intake manifold?
  249. 1995 devile "service engine soon" light comes out , need help
  250. 91 Sedan DeVille Stall