: HT4100 4.1, 4.5, 4.9



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  1. 4.5 V8 Underpowered? & 92-93 Deville?
  2. HT-4100 oil pan
  3. 89 deville 4.5 antifreeze leak?
  4. The screws with no size...
  5. Does a 4.5 and 4.9 share the same transmission?
  6. 93 deville passed emissions and state inspection but still getting 10MPG
  7. 1993 Cadillac Deville 4.9L computer problem (ISC problem continued)
  8. 95 Deville base 4.9 fuel pressure issues, FPR or fuel pump?
  9. Hopefull found out my problem with my 93 deville 4.9
  10. 4.5L Fuel Injectors (Aftermarket)
  11. Thinking about buying a 1997 cadillac eldorado
  12. HT4100 with serpentine belt
  13. new Tranny
  14. Serpenting belt - when to change?
  15. 1993 DeVille ISC Problem
  16. Thanks All
  17. 95 4.9l deville idle problem
  18. Throttle to the moon....
  19. 1990 Deville-- Code E41
  20. still has problems
  21. Help Diagnosing Noise
  22. Bad tps 93 deville
  23. Catalytic
  24. something loose on intake manifold?
  25. What would cause an O2 sensor to turn red?
  26. Putting Restore in my 93 Deville
  27. 93 deville problems
  28. Merry christmas!
  29. The 325-4l dipstick I broke inside fill-tube...
  30. repair shops in oakland, ca.
  31. Valves...4100
  32. Rocker Arm Guide...what?
  33. Fuel Pressure
  34. 93 Deville main bearing thump
  35. Finding Used 4.9l engine assembly's
  36. EGR Tubes clogging up
  37. Power steering pulley
  38. Distributor removal and install on 85 rwd ht4100
  39. Timing Mark bouncing around
  40. Oil Filter Analysis
  41. 91 devillle heater issue
  42. Engine knock - 4.9L w/ 90k
  43. 94 4.9 Weird Rattle Question...
  44. 88 Eldorado, Code B127, E040, No Gears
  45. Strange problem Seville 90
  46. engine shake - 91 el dorado 4.9
  47. 86 deville intake
  48. no start probs
  49. 1995 4.9 cam sync check engine??
  50. 92 Eldo 4.9 43k
  51. 90 SDV won't run, timing chain?
  52. 1991 DeVille 4.9L water pump
  53. 4.1,4.5,4.9..Which You Prefer?
  54. Cadillac mechanic
  55. did they get better?
  56. replacement power antenna
  57. Rough 4th gear
  58. How to replace motor and transmission mounts 1990 Deville 4.5L V8
  59. 1984 Coupe Engine Oil Cooler lines
  60. E48 Code- EGR FAULT
  61. Injector cleaner, will it work?
  62. 4.9 ping!!!
  63. 1990 Seville enginemiss
  64. 1990 4.5 intake gaskets
  65. Cadillac Deville 4.9l Engine Problem
  66. 4.1 L digital engine
  67. 4.1 Motor? Rattles/Engine Pinging?
  68. 4.9L head bolts 1993
  69. P048 EGR code on 4.9L
  70. What gives?
  71. The Best Kind of Motor Oil For 87 Deville HT4100
  72. i have code E52 - PCM Memory Reset how do i do this ?
  73. Gas mileage gone to hell
  74. idle faster after change timming
  75. 4.9 Power Steering Pulley Slipping
  76. 4.9 Upper a/c compressor bracket
  77. 4.9 knock
  78. high fuel consumption..?
  79. 4.9 issue...
  80. Drive belt routing for 4.9L ???
  81. 92 STS Electrical Short or Drain
  82. where to buy mounting bracket for PS pump?
  83. 1993 Sedan Deville Transmission Swap
  84. rpm question
  85. Code 26 & 41 '91 4.9
  86. Question re: engine swap for 85 FW coupe RWD
  87. 1993 Cadillac DeVille 4.9L Distributor Shot
  88. Fuel pump and FPR recommendations?
  89. Could bad motor mounts cause stumbling on light acceleration
  90. Judgement Call - No Heat 93 Deville
  91. Motor is very clean in my 4.9
  92. Cold Air Intake/Exhaust
  93. 84 eldo. antena
  94. Symptoms of faulty distributor pick up coil
  95. I finally switched from dexicool
  96. Misfire at idle and sumble under acceleration 93 4.9
  97. Refilling colant reservoir every 2 weeks, misfire at idle
  98. 4.9. Overheating (long post)
  99. 4.9 Pictures and sound clip!
  100. 84 deville 4.1 starting prob's help please
  101. 90 Seville Dies Suddenly....
  102. when should timing chain be replaced on 93 deville 4.9
  103. Motor Mount Replacement
  104. No heat at 90 degrees on climate control 93 caddy
  105. 4.1 V8 PUlleys!
  106. 93 deville sits very low in rear time for shocks and coil spring?
  107. Adding NITROUS to a 4.5
  108. Preventive maintenance ('90 with 28k miles)
  109. 4.1 Issues with 85 Eldorado -- Can you help?
  110. Best oil Mobil 1 High mileage for 93 deville 4.9 with 102,000 miles
  111. PLEASE HELP 93 DEVILLE 4.9 Stumble under light acceleration
  112. 4.9 What's the best antifreeze to use?
  113. 93 deville surging
  114. 88 ELDO new r134 Failed Twice??
  115. How reliable will my 4.9 be?
  116. Blower fan ideas wanted
  117. 90 deville front cover gasket failure
  118. New Owner with '86 Fleetwood Seventy Five Limo
  119. 4.9 Coolant overfill reservoir not draining into radiator when cold
  120. 1992 Seville 4.9 Liter Removal
  121. ht 4100 to sbc 350 motor mount pad location HELP!
  122. Brakes
  123. 93 deville oil lev
  124. Confused about seal tabs
  125. 84 eldo-4100HT
  126. HT4100 Care and Upkeep
  127. tranny sounds
  128. oil pump again
  129. Mufflers???
  130. 4.9 How long will it last?
  131. 4.5 Reliability
  132. Sawping Out a 4.9
  133. How do you convert 80's model to R134
  134. Have you used sea foam?
  135. distributor wrench
  136. 84 eldo-4100HT
  137. Coolant.
  138. 84 Eldorado Transmission Problems
  139. 1985 Eldorado 4100 engine swap
  140. Da Capts Back with his 4.9 Fiero lots of updates
  141. here we go again, A/C
  142. 84 eldo trouble
  143. help
  144. fuel meter cover gasket...
  145. Makes no sense...
  146. car stutters intermittently under med/heavy acceleration
  147. Missing Antifreeze
  148. Severe Coolant Leak 4.9
  149. peformance chips
  150. 4.9 Bosch GenIII Injector - ??Integrator, Block Learn, x-count, p.w. values??????
  151. won't idle
  152. New code?
  153. Caddy V-8 history
  154. voltage regulator...?
  155. 4.5 running rough at start -- tune up????
  156. e.g.r. valve
  157. 94 Deville Help!!
  158. map sensor
  159. 4.9 aeromotive afpr won't fit!! Help Mr. Illumna
  160. 4.9 throttle body description
  161. Emission test failed
  162. error code 20
  163. break line
  164. 1985 Eldo Gas Leaking out of the Charcoal Can
  165. Distributor Gear Sheared Again...Help!
  166. Climate control Problem???
  167. 1985 Deville Coolant Leak
  168. engine popping
  169. 91 Coupe replaced injectors now blowing smoke
  170. 1995 Deville Hi Performance Ideas anybody????
  171. 4100 vacuum diagram
  172. 4.1 belt tensioner
  173. HT 4.X base timing question
  174. 2005 4.1 PCV Valve
  175. 1985 DeVille Collant Temp Fan Light
  176. new to me 92 sdv,need some help
  177. just wondering
  178. 87 Eldo Cash for Clunker: Heresy?
  179. sudden engine probs
  180. brand new problem
  181. 94 4.9 Distributor question
  182. Plastic Radiator Side Tanks
  183. How to check cat. converter?
  184. 94 Deville 4.9 where is the governor
  185. 92 Eldo problem
  186. Cruise control gone 4.1 87'seville
  187. 94 Sedan Deville A/C Question
  188. fuel injectors interchange?
  189. ht4100 giving me problems
  190. 4.1L tune up and oil on manifold.
  191. Need help on a '90 Cadillac Fleetwood FWD
  192. 91 deville service engine soon
  193. DIN radio in '92 Eldorado
  194. Your best 4.X MPG?
  195. 1991 4.9
  196. 90 SDV Repeated E22 TPS Code
  197. silly question
  198. you helped me last time (weird fuel pump)
  199. 90 SDV Repeated E22 TPS Code
  200. 4100 engine change. Need input.
  201. egnine oil cooler hose assemblies
  202. 92 4.9 starter replacement
  203. How many miles?
  204. water pump wrestling
  205. Head gasket change
  206. Error code 34 on 83 deville
  207. Advanced Timing
  208. gearbox oil..?
  209. Is gas safe
  210. Using a laptop for real-time OBD
  211. '94 4.9 rough running
  212. 4.9 litre engine firing order
  213. 1986 Eldorado HT4100: No Start-No Codes
  214. 1986 Eldorado HT4100
  215. '91 Deville 4.9L surging
  216. 94 4.9L will not start. Need help
  217. Idling Down rough?
  218. 86 Eldorado Fuel Pump
  219. 91 fleewood won't start code31
  220. Did I blow head gasket on 93 deville?? Please Help!
  221. Vaccum Line Problem?
  222. Replacing a blower motor - what's the secret?
  223. oil pump driveshaft is loose???
  224. 1984 Cadillac Eldorado (my topless baby)
  225. Hard starts when hot?
  226. oil pressure gauge installation
  227. couple of questions regarding oil pump
  228. HT4100 Cooling water doesn't circulate (87' Seville)
  229. removing oil pan on RWD 4.1
  230. Turbo 4.1 Allante
  231. radiator caps with zinc anode
  232. What a mess!!!
  233. High Side AC Hose Information Needed
  234. Squeeling betty
  235. 92 deville no acceleration when hot
  236. Where is the PCV valve on the 4.9L?
  237. Performance?
  238. 93 Seville 4.9 4t60E
  239. Vacuum Line Routing Egr Solenoid & Regulator
  240. Bad CTS?? (coolant senor)
  241. Name this tube! 90 DeVille
  242. 4.5 Fuel Injector Issues
  243. HT4100:major oil leak
  244. What engine/trans appear in various Cadillacs?
  245. FWD Engine Removal
  246. Coolant Change Question
  247. Stripped4.9 headbolt
  248. Fooling the Inlet Air Temp (IAT) sensor?
  249. exhaust manifold installation question
  250. PCM FI Driver Damage ? (Re-visited)