: HT4100 4.1, 4.5, 4.9



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