: HT4100 4.1, 4.5, 4.9



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