: HT4100 4.1, 4.5, 4.9



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  1. Oil Filter Analysis
  2. 91 devillle heater issue
  3. Engine knock - 4.9L w/ 90k
  4. 94 4.9 Weird Rattle Question...
  5. 88 Eldorado, Code B127, E040, No Gears
  6. Strange problem Seville 90
  7. engine shake - 91 el dorado 4.9
  8. 86 deville intake
  9. no start probs
  10. 1995 4.9 cam sync check engine??
  11. 92 Eldo 4.9 43k
  12. 90 SDV won't run, timing chain?
  13. 1991 DeVille 4.9L water pump
  14. 4.1,4.5,4.9..Which You Prefer?
  15. Cadillac mechanic
  16. did they get better?
  17. replacement power antenna
  18. Rough 4th gear
  19. How to replace motor and transmission mounts 1990 Deville 4.5L V8
  20. 1984 Coupe Engine Oil Cooler lines
  21. E48 Code- EGR FAULT
  22. Injector cleaner, will it work?
  23. 4.9 ping!!!
  24. 1990 Seville enginemiss
  25. 1990 4.5 intake gaskets
  26. Cadillac Deville 4.9l Engine Problem
  27. 4.1 L digital engine
  28. 4.1 Motor? Rattles/Engine Pinging?
  29. 4.9L head bolts 1993
  30. P048 EGR code on 4.9L
  31. What gives?
  32. The Best Kind of Motor Oil For 87 Deville HT4100
  33. i have code E52 - PCM Memory Reset how do i do this ?
  34. Gas mileage gone to hell
  35. idle faster after change timming
  36. 4.9 Power Steering Pulley Slipping
  37. 4.9 Upper a/c compressor bracket
  38. 4.9 knock
  39. high fuel consumption..?
  40. 4.9 issue...
  41. Drive belt routing for 4.9L ???
  42. 92 STS Electrical Short or Drain
  43. where to buy mounting bracket for PS pump?
  44. 1993 Sedan Deville Transmission Swap
  45. rpm question
  46. Code 26 & 41 '91 4.9
  47. Question re: engine swap for 85 FW coupe RWD
  48. 1993 Cadillac DeVille 4.9L Distributor Shot
  49. Fuel pump and FPR recommendations?
  50. Could bad motor mounts cause stumbling on light acceleration
  51. Judgement Call - No Heat 93 Deville
  52. Motor is very clean in my 4.9
  53. Cold Air Intake/Exhaust
  54. 84 eldo. antena
  55. Symptoms of faulty distributor pick up coil
  56. I finally switched from dexicool
  57. Misfire at idle and sumble under acceleration 93 4.9
  58. Refilling colant reservoir every 2 weeks, misfire at idle
  59. 4.9. Overheating (long post)
  60. 4.9 Pictures and sound clip!
  61. 84 deville 4.1 starting prob's help please
  62. 90 Seville Dies Suddenly....
  63. when should timing chain be replaced on 93 deville 4.9
  64. Motor Mount Replacement
  65. No heat at 90 degrees on climate control 93 caddy
  66. 4.1 V8 PUlleys!
  67. 93 deville sits very low in rear time for shocks and coil spring?
  68. Adding NITROUS to a 4.5
  69. Preventive maintenance ('90 with 28k miles)
  70. 4.1 Issues with 85 Eldorado -- Can you help?
  71. Best oil Mobil 1 High mileage for 93 deville 4.9 with 102,000 miles
  72. PLEASE HELP 93 DEVILLE 4.9 Stumble under light acceleration
  73. 4.9 What's the best antifreeze to use?
  74. 93 deville surging
  75. 88 ELDO new r134 Failed Twice??
  76. How reliable will my 4.9 be?
  77. Blower fan ideas wanted
  78. 90 deville front cover gasket failure
  79. New Owner with '86 Fleetwood Seventy Five Limo
  80. 4.9 Coolant overfill reservoir not draining into radiator when cold
  81. 1992 Seville 4.9 Liter Removal
  82. ht 4100 to sbc 350 motor mount pad location HELP!
  83. Brakes
  84. 93 deville oil lev
  85. Confused about seal tabs
  86. 84 eldo-4100HT
  87. HT4100 Care and Upkeep
  88. tranny sounds
  89. oil pump again
  90. Mufflers???
  91. 4.9 How long will it last?
  92. 4.5 Reliability
  93. Sawping Out a 4.9
  94. How do you convert 80's model to R134
  95. Have you used sea foam?
  96. distributor wrench
  97. 84 eldo-4100HT
  98. Coolant.
  99. 84 Eldorado Transmission Problems
  100. 1985 Eldorado 4100 engine swap
  101. Da Capts Back with his 4.9 Fiero lots of updates
  102. here we go again, A/C
  103. 84 eldo trouble
  104. help
  105. fuel meter cover gasket...
  106. Makes no sense...
  107. car stutters intermittently under med/heavy acceleration
  108. Missing Antifreeze
  109. Severe Coolant Leak 4.9
  110. peformance chips
  111. 4.9 Bosch GenIII Injector - ??Integrator, Block Learn, x-count, p.w. values??????
  112. won't idle
  113. New code?
  114. Caddy V-8 history
  115. voltage regulator...?
  116. 4.5 running rough at start -- tune up????
  117. e.g.r. valve
  118. 94 Deville Help!!
  119. map sensor
  120. 4.9 aeromotive afpr won't fit!! Help Mr. Illumna
  121. 4.9 throttle body description
  122. Emission test failed
  123. error code 20
  124. break line
  125. 1985 Eldo Gas Leaking out of the Charcoal Can
  126. Distributor Gear Sheared Again...Help!
  127. Climate control Problem???
  128. 1985 Deville Coolant Leak
  129. engine popping
  130. 91 Coupe replaced injectors now blowing smoke
  131. 1995 Deville Hi Performance Ideas anybody????
  132. 4100 vacuum diagram
  133. 4.1 belt tensioner
  134. HT 4.X base timing question
  135. 2005 4.1 PCV Valve
  136. 1985 DeVille Collant Temp Fan Light
  137. new to me 92 sdv,need some help
  138. just wondering
  139. 87 Eldo Cash for Clunker: Heresy?
  140. sudden engine probs
  141. brand new problem
  142. 94 4.9 Distributor question
  143. Plastic Radiator Side Tanks
  144. How to check cat. converter?
  145. 94 Deville 4.9 where is the governor
  146. 92 Eldo problem
  147. Cruise control gone 4.1 87'seville
  148. 94 Sedan Deville A/C Question
  149. fuel injectors interchange?
  150. ht4100 giving me problems
  151. 4.1L tune up and oil on manifold.
  152. Need help on a '90 Cadillac Fleetwood FWD
  153. 91 deville service engine soon
  154. DIN radio in '92 Eldorado
  155. Your best 4.X MPG?
  156. 1991 4.9
  157. 90 SDV Repeated E22 TPS Code
  158. silly question
  159. you helped me last time (weird fuel pump)
  160. 90 SDV Repeated E22 TPS Code
  161. 4100 engine change. Need input.
  162. egnine oil cooler hose assemblies
  163. 92 4.9 starter replacement
  164. How many miles?
  165. water pump wrestling
  166. Head gasket change
  167. Error code 34 on 83 deville
  168. Advanced Timing
  169. gearbox oil..?
  170. Is gas safe
  171. Using a laptop for real-time OBD
  172. '94 4.9 rough running
  173. 4.9 litre engine firing order
  174. 1986 Eldorado HT4100: No Start-No Codes
  175. 1986 Eldorado HT4100
  176. '91 Deville 4.9L surging
  177. 94 4.9L will not start. Need help
  178. Idling Down rough?
  179. 86 Eldorado Fuel Pump
  180. 91 fleewood won't start code31
  181. Did I blow head gasket on 93 deville?? Please Help!
  182. Vaccum Line Problem?
  183. Replacing a blower motor - what's the secret?
  184. oil pump driveshaft is loose???
  185. 1984 Cadillac Eldorado (my topless baby)
  186. Hard starts when hot?
  187. oil pressure gauge installation
  188. couple of questions regarding oil pump
  189. HT4100 Cooling water doesn't circulate (87' Seville)
  190. removing oil pan on RWD 4.1
  191. Turbo 4.1 Allante
  192. radiator caps with zinc anode
  193. What a mess!!!
  194. High Side AC Hose Information Needed
  195. Squeeling betty
  196. 92 deville no acceleration when hot
  197. Where is the PCV valve on the 4.9L?
  198. Performance?
  199. 93 Seville 4.9 4t60E
  200. Vacuum Line Routing Egr Solenoid & Regulator
  201. Bad CTS?? (coolant senor)
  202. Name this tube! 90 DeVille
  203. 4.5 Fuel Injector Issues
  204. HT4100:major oil leak
  205. What engine/trans appear in various Cadillacs?
  206. FWD Engine Removal
  207. Coolant Change Question
  208. Stripped4.9 headbolt
  209. Fooling the Inlet Air Temp (IAT) sensor?
  210. exhaust manifold installation question
  211. PCM FI Driver Damage ? (Re-visited)
  212. 4.9L Main Bearing Thump
  213. 1993 4.9 rough at low RPM
  214. ht4100 issues
  215. PCM FI Driver Damage ?
  216. DeVille 4.9 Throttle body spacer
  217. Throttle body spacer
  218. Hot exhaust
  219. E24?
  220. 4.9 Water Pump....OR ?
  221. Stalling and Surging--Need help
  222. Relocate the oil filter on your 4.9
  223. SSS light on?
  224. 1985 Eldorado Engine Stumble & Surge
  225. won't go in gear
  226. used oil cooler lines?
  227. Chirping engine at idle
  228. 1993 Deville 4.9 sumble at iddle.
  229. Coolant "tabs" -- yes or no
  230. '90 DeVille Fuel Sending Unit Problem??
  231. Where to install Prestone flush fitting?
  232. 95 Deville AC compressor noisy
  233. 368 to 4.1 swap 1980 Fleetwood Brougham
  234. Procedure for flushing the cooling system (1990 4.5)
  235. F40 & F49 ?'s
  236. ISC part#
  237. I got a GREAT deal, I think!
  238. I wanna drive my Cadi
  239. Coolant Fan Problems
  240. Fuel injector problem
  241. 95 4.9 deville no spark???
  242. Current drain
  243. radiator/cooling system suggestions
  244. Stump the experts!
  245. no spark
  246. Why Do Some 4.x Engines get 26+MPG, Others <18 MPG Highway
  247. 1991 Cadillac Deville Runs Rough Weak Spark HELP
  248. Thermostatic Air Cleaner (THERMAC) location?
  249. Set timing mode problem!!!!! Please help!
  250. possible to fix myself?