: HT4100 4.1, 4.5, 4.9



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