: HT4100 4.1, 4.5, 4.9



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  1. 90 deville 4.5 stalling problems
  2. 1983 Eldorado engine running problem!
  3. Carburetor on V8 4100 HT Eldorado 1985 ?
  4. need some help with my 1994 Deville 4.9L v8
  5. Did I miss anything?
  6. hard starting 1997 STS
  7. 1991 Cadillac Biarittz - Engine problem.
  8. First Caddy Questions
  9. The best engine to put in my Eldo Cadillac?
  10. Stumped!
  11. 1990 cadillac deville
  12. Please Help - error code 19 on 84 Deville ht4100
  13. Fuel Pump Relay - 84 Deville HT4100
  14. Where is the oil pressure switch located - 84 Deville HT4100
  15. Remanufactured 4.1 available
  16. 4.9 Belt Tensioner Question
  17. Rough Running 4.9 - Please Help !
  18. Removing the AIR pump, HT4100
  19. 4T60-E Transaxle, feels like park paw spring is worn out.
  20. Seville Swap: from 83 HT4100 to 81 368
  21. 86 seville 4.1 low engine power-issue
  22. leftover 4.x parts
  23. 4.5 RWD engines for sale?? would this work??
  24. '85 Seville HT 4100 MAP location & mystery connectors ?
  25. awesome 440T4->4T65E conversion
  26. Difficult to start engine in Eldorado 1983
  27. Rough Idle on low mileage 91 Eldorado
  28. "system problem"
  29. Purpose for detent switch and kickdown?
  30. Basics for operating ECM on 84 Deville HT4100??
  31. 4.5 Overheating. Need help
  32. PD08 and Spark Timing
  33. Where is the a/c low pressure valve on a 1990 Seville?
  34. 1985 DeVille Whats That, (Fuel System Canister Valve?)
  35. 4.5 will not go into timing mode, desperately seeking advice
  36. Torque Specs
  37. Looking to replace camshaft to fix lack of power & hesitation - ht4100
  38. HT 4100 engine problem
  39. 84 cadillac eldorado ht4100 rough idle at acceleration
  40. ISC Adjustment & the mysterious green connector
  41. Thinking of picking up an '83 Fleetwood HT4100
  42. Advice, please: 4.9 Cruise Control Cable Stuck
  43. 1995 Sedan Deville HEAD Gasket
  44. 88 seville instrument panel
  45. Need Help with timing/tune-up on 84 Cadillac Deville HT4100
  46. Bad Misfire on Low Mile 4.9 (1991 Eldorado)
  47. thinking about getting mods on 4.5
  48. Vapor Canister Filter
  49. Oil for 4100
  50. Code E49 Air Injection System Fault
  51. 4.5 distributor removal
  52. significant improvements in 94/95 4.9?
  53. Name the Emission Tube for 1990 4.5
  54. source for 4.x cylinder sleeves
  55. 4.9 throttle body interchange data
  56. Engine Swap Process
  57. 4.9 Individual Throttle Body project
  58. 91 Deville - skipping and no 1st or 4th gear-HELP
  59. 96 deville alternator
  60. Falling MPG - 1990 Deville/Fleetwood
  61. 4.5 carb and distributor conversion
  62. A/C Repair
  63. 4.9 running rough after spark plug change Help!
  64. New annoying message: "Change Oil Soon" (just changed it last month!)
  65. 4.9 Horrible Idle
  66. 1993 Distributor, and Minimum Air
  67. 4.1L Idle Speed Issues
  68. 4.9 blown head gasket
  69. codes i pulled from my cadi
  70. idle engine engine hot please help
  71. Oil in coolant, 4.5
  72. 1985 Cadillac El Dorado water pump!
  73. Bad A/C Delco Waterpump. 91 Eldo 4.9 Anything better than AC Delco Waterpumps?
  74. 90' 4.5L Deville Head Bolt Leaking
  75. 4.9 no crank
  76. car is dieing at idle. P048 current trouble code.
  77. 93 Seville 4.9L sporadic miss at idle. Spark Plugs?
  78. Intermittent throttle sticking
  79. Looking for HT4100 Cylinder head guide pin
  80. E 90 Code - VCC Brake Switch Signal Problem
  81. squeeling under the hood
  82. Broke hose
  83. A Time To Celebrate
  84. 7mpg average! Help if anyone can.
  85. Heater Core Replace BRRR COLD!
  86. WARNING! 4.9L Dayco Tensioner Pulley warning: DO NOT BUY #231081!!!
  87. Throttle Questions
  88. HT4100 (4.5 sleeves) Head Bolt Torque Sequence and Specifications?
  89. 1986 Seville HT4100-Overcooling issue
  90. Can't find the engine temperature switch.
  91. Need Help PLEASE HELP!!! Oil dipstick problem
  92. Cold Air Intake?
  93. Oil pan and pump
  94. Can bad ECM cause 85 fleetwood brougham ht4100 miss bad, backfire and barely run?
  95. New Car Got Questions????
  96. the notorious 4.1 thump
  97. Recently rebuilt 85 ht4100...was fine....all of a sudden struggling and backfiring
  98. 4100 Valve train not oiling
  99. E49 code and possible solutions.
  100. timing
  101. 1990 Seville-Message DTC R026 / RO33
  102. E47
  103. burning
  104. e23 and e27
  105. Idle speed control problem? 90 Deville 4.5
  106. E37 code manifold air temp. sensor
  107. 85 fleet ht4100 fwd
  108. Disributor slop question
  109. 1988 Cadillac DeVille 4.5L gas gauge issue
  110. Fuel Line
  111. 4.9 oil pump in 4.5
  112. Colder Spark Plugs
  113. Twinkling lights
  114. Stainless steel exhaust, 90 Deville
  115. 4.1 Intial Timing Question
  116. 92 Deville stalling and backfiring
  117. 4.1 TPS Question
  118. 4.5L Deville runnability issues/ emissions problems
  119. Can I supercharge my 2008 STS AWD?
  120. 85 eldo w/4100
  121. UGH watter pump gasket
  122. Do Not Overfill!
  123. Techheads, answer me this:
  124. allante 4.5! awesome
  125. Replacing head gasket on 1992 4.9
  126. Fuel Imbalance (Left and Right Bank)
  127. leaky rear main oil seal
  128. Persistant Leaking
  129. Coolant Header Tank
  130. Exhaust manifold gaskets
  131. How to adjust idle speed on '91 Eldorado 4,5l V8 ?
  132. Do I have a blown head? And should I replace my motor? 93 Sedan Deville 4.9L V8
  133. What engines are compatible with 93 Sedan Deville?
  134. 4100 to 307 swap (ITS ALIVE!)
  135. high idle after washing engine
  136. spark plugs
  137. 4.9 stumbling right off idle
  138. @50MPH & above; Doggy and slight vibration
  139. Trying to Identify this Hose
  140. 4.1 to a 4.5
  141. 4.x perf options
  142. 93 deville turn signal problems
  143. Oxygen Sensor Code 44
  144. 4.5 in an Isuzu Trooper
  145. 1990 Fleetwood fwd 4.5L Surges and looses power when warm
  146. 84 Eldorado torsion bar anchors
  147. power steering pump bracket
  148. cooling fans
  149. need to replace a couple fuel injectors, any advice before pulling the fuel rail, etc
  150. 84 eldo. antena
  151. replacing a 4.1
  152. Where do I connect Tach
  153. So how old is too old for injectors?
  154. 4.9L missing
  155. Ht4100 question
  156. HT4100 Exhaust Manifold Gaskets
  157. Transmission is shot
  158. 93 deville running great
  159. Fuel Pump runs, but car won't start!
  160. 4.5 distributer 180 out?
  161. 4.9 Distributor / Timing question
  162. Changing Final Drive ratio/ ECM tuning
  163. looking for a good 4100 mechanic
  164. '84 4.1 idles up and down when the A/C is on
  165. Transmission acting funny
  166. HT4100 upkeep and maintenence
  167. P.A.S.S. security system
  168. What is effected by an E0112?
  169. Clunkin Sound
  170. lost my top-end
  171. What is F15 code? ('90 DeVille 4.5)
  172. '84 Eldorado 4100 vacuum readings
  173. Interchangeability HT4100
  174. O2 sensors : 1 righ and 1 lean
  175. Just wanted to thank you guys
  176. '92 Fleetwood DeVille random stalling
  177. New Life in my 94 caddy
  178. Anyone done a 4100 head gasket replace?
  179. Low oil pressure - stop engine
  180. Fuel pump running, car not....
  181. 1996 deville with 200 deville engine swap.Possible??
  182. 92 Eldorado Valve Cover Gaskets
  183. HT4100 engine vacuum lines with pics
  184. 92 4.9L, not sure if radiator fans are coming on
  185. Shorted MAP Sensor Signal
  186. 85 HT4100 new remanufactured motor
  187. S10 Chevy p'up; swap in a 4.5 or 4.9?
  188. Replacing the starter on a 1987 Cadillac Eldorado with 4.1L V8
  189. 4T60-E + Ratchet Shifter
  190. 85 HT4100 smokes when shut off?
  191. Intake Gaskets
  192. Gaggle of codes, ugh!
  193. HT 4100 no oil pressure new rebuilt motor
  194. rebuilt HT 4100 no oil up top or oil pressure
  195. Opinions on my very special '93 FWD C-Body
  196. 4.1 oil leak
  197. 92 deville wont start
  198. Tunercats
  199. chugging and backfiring intermittently. No codes
  200. 1992 4.9 Coolant Mystery
  201. 90 4.5 exhaust manifold threads
  202. EGR interchange
  203. 4.9 fuel pump question
  204. The DIY Injector Test Bench
  205. Wont start please help
  206. Loss of electrical; intermittent problem
  207. Alternator
  208. Distributor Sound
  209. Tired of &^%$ injectors!
  210. egr problems?4.9
  211. Help with '91 ETC codes.
  212. ECM interchangeability and swap
  213. 1991 Deville Leaking Coolant near water pump
  214. ECM specs, where do I find them?
  215. Outside temp
  216. No oil up top, what am I missing?
  217. ECM injector driver damage?
  218. Thoughts on supercharging 4.9
  219. Anyone Need a 90 deville FSM
  220. broke down before belt came off pump and belt tensioner bracket cracked
  221. Steering
  222. getting wierd OBD I codes what is it bad computer?
  223. 4.9 ever used in a hearse?
  224. need help antifreeze leak 4.9 1993 deville
  225. ok just need some info
  226. 4.5 head gaskets
  227. Code 52.
  228. 84 Seville 4.1L with "Random Toyota Acceleration" issue
  229. cooling fan module
  230. 4.5 intake manifold gasket progress
  231. 4.9 main mearing thump getting worse?
  232. lost of power
  233. 4.9 a little jittery at idle
  234. Power brake booster vacuum hose? All Cylinders?
  235. Egr
  236. Goodwrench NEW 4.1 sticker
  237. EGR tubes and TPS question.
  238. Antifreeze on the PCV Valve
  239. Ground Locations?
  240. 4.9 Reluctant to Start, Sometimes Dies at Idle
  241. I think its the alternator
  242. how long to change all motor mounts on 93 deville
  243. Vacuum leak somewhere inside the dash
  244. What problems in removing 4.9?
  245. Spark Plugs: What do YOU run?
  246. 4.9l engine ticking noise: lifter?
  247. 4.5 or 4.9
  248. 4.5 or 4.9 Engine
  249. Pump thump
  250. Replaced intake gasket and messed something up!