: HT4100 4.1, 4.5, 4.9



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  1. What is F15 code? ('90 DeVille 4.5)
  2. '84 Eldorado 4100 vacuum readings
  3. Interchangeability HT4100
  4. O2 sensors : 1 righ and 1 lean
  5. Just wanted to thank you guys
  6. '92 Fleetwood DeVille random stalling
  7. New Life in my 94 caddy
  8. Anyone done a 4100 head gasket replace?
  9. Low oil pressure - stop engine
  10. Fuel pump running, car not....
  11. 1996 deville with 200 deville engine swap.Possible??
  12. 92 Eldorado Valve Cover Gaskets
  13. HT4100 engine vacuum lines with pics
  14. 92 4.9L, not sure if radiator fans are coming on
  15. Shorted MAP Sensor Signal
  16. 85 HT4100 new remanufactured motor
  17. S10 Chevy p'up; swap in a 4.5 or 4.9?
  18. Replacing the starter on a 1987 Cadillac Eldorado with 4.1L V8
  19. 4T60-E + Ratchet Shifter
  20. 85 HT4100 smokes when shut off?
  21. Intake Gaskets
  22. Gaggle of codes, ugh!
  23. HT 4100 no oil pressure new rebuilt motor
  24. rebuilt HT 4100 no oil up top or oil pressure
  25. Opinions on my very special '93 FWD C-Body
  26. 4.1 oil leak
  27. 92 deville wont start
  28. Tunercats
  29. chugging and backfiring intermittently. No codes
  30. 1992 4.9 Coolant Mystery
  31. 90 4.5 exhaust manifold threads
  32. EGR interchange
  33. 4.9 fuel pump question
  34. The DIY Injector Test Bench
  35. Wont start please help
  36. Loss of electrical; intermittent problem
  37. Alternator
  38. Distributor Sound
  39. Tired of &^%$ injectors!
  40. egr problems?4.9
  41. Help with '91 ETC codes.
  42. ECM interchangeability and swap
  43. 1991 Deville Leaking Coolant near water pump
  44. ECM specs, where do I find them?
  45. Outside temp
  46. No oil up top, what am I missing?
  47. ECM injector driver damage?
  48. Thoughts on supercharging 4.9
  49. Anyone Need a 90 deville FSM
  50. broke down before belt came off pump and belt tensioner bracket cracked
  51. Steering
  52. getting wierd OBD I codes what is it bad computer?
  53. 4.9 ever used in a hearse?
  54. need help antifreeze leak 4.9 1993 deville
  55. ok just need some info
  56. 4.5 head gaskets
  57. Code 52.
  58. 84 Seville 4.1L with "Random Toyota Acceleration" issue
  59. cooling fan module
  60. 4.5 intake manifold gasket progress
  61. 4.9 main mearing thump getting worse?
  62. lost of power
  63. 4.9 a little jittery at idle
  64. Power brake booster vacuum hose? All Cylinders?
  65. Egr
  66. Goodwrench NEW 4.1 sticker
  67. EGR tubes and TPS question.
  68. Antifreeze on the PCV Valve
  69. Ground Locations?
  70. 4.9 Reluctant to Start, Sometimes Dies at Idle
  71. I think its the alternator
  72. how long to change all motor mounts on 93 deville
  73. Vacuum leak somewhere inside the dash
  74. What problems in removing 4.9?
  75. Spark Plugs: What do YOU run?
  76. 4.9l engine ticking noise: lifter?
  77. 4.5 or 4.9
  78. 4.5 or 4.9 Engine
  79. Pump thump
  80. Replaced intake gasket and messed something up!
  81. When I First Start The Engine...
  82. Failed emissions
  83. 89 Eldorado engine misfire
  84. Ht-4100 rwd info
  85. 4.5 V8 Underpowered? & 92-93 Deville?
  86. HT-4100 oil pan
  87. 89 deville 4.5 antifreeze leak?
  88. The screws with no size...
  89. Does a 4.5 and 4.9 share the same transmission?
  90. 93 deville passed emissions and state inspection but still getting 10MPG
  91. 1993 Cadillac Deville 4.9L computer problem (ISC problem continued)
  92. 95 Deville base 4.9 fuel pressure issues, FPR or fuel pump?
  93. Hopefull found out my problem with my 93 deville 4.9
  94. 4.5L Fuel Injectors (Aftermarket)
  95. Thinking about buying a 1997 cadillac eldorado
  96. HT4100 with serpentine belt
  97. new Tranny
  98. Serpenting belt - when to change?
  99. 1993 DeVille ISC Problem
  100. Thanks All
  101. 95 4.9l deville idle problem
  102. Throttle to the moon....
  103. 1990 Deville-- Code E41
  104. still has problems
  105. Help Diagnosing Noise
  106. Bad tps 93 deville
  107. Catalytic
  108. something loose on intake manifold?
  109. What would cause an O2 sensor to turn red?
  110. Putting Restore in my 93 Deville
  111. 93 deville problems
  112. Merry christmas!
  113. The 325-4l dipstick I broke inside fill-tube...
  114. repair shops in oakland, ca.
  115. Valves...4100
  116. Rocker Arm Guide...what?
  117. Fuel Pressure
  118. 93 Deville main bearing thump
  119. Finding Used 4.9l engine assembly's
  120. EGR Tubes clogging up
  121. Power steering pulley
  122. Distributor removal and install on 85 rwd ht4100
  123. Timing Mark bouncing around
  124. Oil Filter Analysis
  125. 91 devillle heater issue
  126. Engine knock - 4.9L w/ 90k
  127. 94 4.9 Weird Rattle Question...
  128. 88 Eldorado, Code B127, E040, No Gears
  129. Strange problem Seville 90
  130. engine shake - 91 el dorado 4.9
  131. 86 deville intake
  132. no start probs
  133. 1995 4.9 cam sync check engine??
  134. 92 Eldo 4.9 43k
  135. 90 SDV won't run, timing chain?
  136. 1991 DeVille 4.9L water pump
  137. 4.1,4.5,4.9..Which You Prefer?
  138. Cadillac mechanic
  139. did they get better?
  140. replacement power antenna
  141. Rough 4th gear
  142. How to replace motor and transmission mounts 1990 Deville 4.5L V8
  143. 1984 Coupe Engine Oil Cooler lines
  144. E48 Code- EGR FAULT
  145. Injector cleaner, will it work?
  146. 4.9 ping!!!
  147. 1990 Seville enginemiss
  148. 1990 4.5 intake gaskets
  149. Cadillac Deville 4.9l Engine Problem
  150. 4.1 L digital engine
  151. 4.1 Motor? Rattles/Engine Pinging?
  152. 4.9L head bolts 1993
  153. P048 EGR code on 4.9L
  154. What gives?
  155. The Best Kind of Motor Oil For 87 Deville HT4100
  156. i have code E52 - PCM Memory Reset how do i do this ?
  157. Gas mileage gone to hell
  158. idle faster after change timming
  159. 4.9 Power Steering Pulley Slipping
  160. 4.9 Upper a/c compressor bracket
  161. 4.9 knock
  162. high fuel consumption..?
  163. 4.9 issue...
  164. Drive belt routing for 4.9L ???
  165. 92 STS Electrical Short or Drain
  166. where to buy mounting bracket for PS pump?
  167. 1993 Sedan Deville Transmission Swap
  168. rpm question
  169. Code 26 & 41 '91 4.9
  170. Question re: engine swap for 85 FW coupe RWD
  171. 1993 Cadillac DeVille 4.9L Distributor Shot
  172. Fuel pump and FPR recommendations?
  173. Could bad motor mounts cause stumbling on light acceleration
  174. Judgement Call - No Heat 93 Deville
  175. Motor is very clean in my 4.9
  176. Cold Air Intake/Exhaust
  177. 84 eldo. antena
  178. Symptoms of faulty distributor pick up coil
  179. I finally switched from dexicool
  180. Misfire at idle and sumble under acceleration 93 4.9
  181. Refilling colant reservoir every 2 weeks, misfire at idle
  182. 4.9. Overheating (long post)
  183. 4.9 Pictures and sound clip!
  184. 84 deville 4.1 starting prob's help please
  185. 90 Seville Dies Suddenly....
  186. when should timing chain be replaced on 93 deville 4.9
  187. Motor Mount Replacement
  188. No heat at 90 degrees on climate control 93 caddy
  189. 4.1 V8 PUlleys!
  190. 93 deville sits very low in rear time for shocks and coil spring?
  191. Adding NITROUS to a 4.5
  192. Preventive maintenance ('90 with 28k miles)
  193. 4.1 Issues with 85 Eldorado -- Can you help?
  194. Best oil Mobil 1 High mileage for 93 deville 4.9 with 102,000 miles
  195. PLEASE HELP 93 DEVILLE 4.9 Stumble under light acceleration
  196. 4.9 What's the best antifreeze to use?
  197. 93 deville surging
  198. 88 ELDO new r134 Failed Twice??
  199. How reliable will my 4.9 be?
  200. Blower fan ideas wanted
  201. 90 deville front cover gasket failure
  202. New Owner with '86 Fleetwood Seventy Five Limo
  203. 4.9 Coolant overfill reservoir not draining into radiator when cold
  204. 1992 Seville 4.9 Liter Removal
  205. ht 4100 to sbc 350 motor mount pad location HELP!
  206. Brakes
  207. 93 deville oil lev
  208. Confused about seal tabs
  209. 84 eldo-4100HT
  210. HT4100 Care and Upkeep
  211. tranny sounds
  212. oil pump again
  213. Mufflers???
  214. 4.9 How long will it last?
  215. 4.5 Reliability
  216. Sawping Out a 4.9
  217. How do you convert 80's model to R134
  218. Have you used sea foam?
  219. distributor wrench
  220. 84 eldo-4100HT
  221. Coolant.
  222. 84 Eldorado Transmission Problems
  223. 1985 Eldorado 4100 engine swap
  224. Da Capts Back with his 4.9 Fiero lots of updates
  225. here we go again, A/C
  226. 84 eldo trouble
  227. help
  228. fuel meter cover gasket...
  229. Makes no sense...
  230. car stutters intermittently under med/heavy acceleration
  231. Missing Antifreeze
  232. Severe Coolant Leak 4.9
  233. peformance chips
  234. 4.9 Bosch GenIII Injector - ??Integrator, Block Learn, x-count, p.w. values??????
  235. won't idle
  236. New code?
  237. Caddy V-8 history
  238. voltage regulator...?
  239. 4.5 running rough at start -- tune up????
  240. e.g.r. valve
  241. 94 Deville Help!!
  242. map sensor
  243. 4.9 aeromotive afpr won't fit!! Help Mr. Illumna
  244. 4.9 throttle body description
  245. Emission test failed
  246. error code 20
  247. break line
  248. 1985 Eldo Gas Leaking out of the Charcoal Can
  249. Distributor Gear Sheared Again...Help!
  250. Climate control Problem???