: HT4100 4.1, 4.5, 4.9



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