: HT4100 4.1, 4.5, 4.9



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  1. '82 Fleetwood D'elegance coupe problem :(
  2. replacing water pump on my old '84 DeVille 4.1 engine
  3. What are the symptoms of CVJ’s failing?
  4. distributor question
  5. Car not starting
  6. Problem with 1990 Seville 4.5
  7. change spark plugs, 1989 seville 4.5
  8. Oil Leaking from "Everywhere"
  9. 4.1 to 4.1 swap, how hard can it really be???
  10. School of hard knocks
  11. 90 deville 4.5 stalling problems
  12. 1983 Eldorado engine running problem!
  13. Carburetor on V8 4100 HT Eldorado 1985 ?
  14. need some help with my 1994 Deville 4.9L v8
  15. Did I miss anything?
  16. hard starting 1997 STS
  17. 1991 Cadillac Biarittz - Engine problem.
  18. First Caddy Questions
  19. The best engine to put in my Eldo Cadillac?
  20. Stumped!
  21. 1990 cadillac deville
  22. Please Help - error code 19 on 84 Deville ht4100
  23. Fuel Pump Relay - 84 Deville HT4100
  24. Where is the oil pressure switch located - 84 Deville HT4100
  25. Remanufactured 4.1 available
  26. 4.9 Belt Tensioner Question
  27. Rough Running 4.9 - Please Help !
  28. Removing the AIR pump, HT4100
  29. 4T60-E Transaxle, feels like park paw spring is worn out.
  30. Seville Swap: from 83 HT4100 to 81 368
  31. 86 seville 4.1 low engine power-issue
  32. leftover 4.x parts
  33. 4.5 RWD engines for sale?? would this work??
  34. '85 Seville HT 4100 MAP location & mystery connectors ?
  35. awesome 440T4->4T65E conversion
  36. Difficult to start engine in Eldorado 1983
  37. Rough Idle on low mileage 91 Eldorado
  38. "system problem"
  39. Purpose for detent switch and kickdown?
  40. Basics for operating ECM on 84 Deville HT4100??
  41. 4.5 Overheating. Need help
  42. PD08 and Spark Timing
  43. Where is the a/c low pressure valve on a 1990 Seville?
  44. 1985 DeVille Whats That, (Fuel System Canister Valve?)
  45. 4.5 will not go into timing mode, desperately seeking advice
  46. Torque Specs
  47. Looking to replace camshaft to fix lack of power & hesitation - ht4100
  48. HT 4100 engine problem
  49. 84 cadillac eldorado ht4100 rough idle at acceleration
  50. ISC Adjustment & the mysterious green connector
  51. Thinking of picking up an '83 Fleetwood HT4100
  52. Advice, please: 4.9 Cruise Control Cable Stuck
  53. 1995 Sedan Deville HEAD Gasket
  54. 88 seville instrument panel
  55. Need Help with timing/tune-up on 84 Cadillac Deville HT4100
  56. Bad Misfire on Low Mile 4.9 (1991 Eldorado)
  57. thinking about getting mods on 4.5
  58. Vapor Canister Filter
  59. Oil for 4100
  60. Code E49 Air Injection System Fault
  61. 4.5 distributor removal
  62. significant improvements in 94/95 4.9?
  63. Name the Emission Tube for 1990 4.5
  64. source for 4.x cylinder sleeves
  65. 4.9 throttle body interchange data
  66. Engine Swap Process
  67. 4.9 Individual Throttle Body project
  68. 91 Deville - skipping and no 1st or 4th gear-HELP
  69. 96 deville alternator
  70. Falling MPG - 1990 Deville/Fleetwood
  71. 4.5 carb and distributor conversion
  72. A/C Repair
  73. 4.9 running rough after spark plug change Help!
  74. New annoying message: "Change Oil Soon" (just changed it last month!)
  75. 4.9 Horrible Idle
  76. 1993 Distributor, and Minimum Air
  77. 4.1L Idle Speed Issues
  78. 4.9 blown head gasket
  79. codes i pulled from my cadi
  80. idle engine engine hot please help
  81. Oil in coolant, 4.5
  82. 1985 Cadillac El Dorado water pump!
  83. Bad A/C Delco Waterpump. 91 Eldo 4.9 Anything better than AC Delco Waterpumps?
  84. 90' 4.5L Deville Head Bolt Leaking
  85. 4.9 no crank
  86. car is dieing at idle. P048 current trouble code.
  87. 93 Seville 4.9L sporadic miss at idle. Spark Plugs?
  88. Intermittent throttle sticking
  89. Looking for HT4100 Cylinder head guide pin
  90. E 90 Code - VCC Brake Switch Signal Problem
  91. squeeling under the hood
  92. Broke hose
  93. A Time To Celebrate
  94. 7mpg average! Help if anyone can.
  95. Heater Core Replace BRRR COLD!
  96. WARNING! 4.9L Dayco Tensioner Pulley warning: DO NOT BUY #231081!!!
  97. Throttle Questions
  98. HT4100 (4.5 sleeves) Head Bolt Torque Sequence and Specifications?
  99. 1986 Seville HT4100-Overcooling issue
  100. Can't find the engine temperature switch.
  101. Need Help PLEASE HELP!!! Oil dipstick problem
  102. Cold Air Intake?
  103. Oil pan and pump
  104. Can bad ECM cause 85 fleetwood brougham ht4100 miss bad, backfire and barely run?
  105. New Car Got Questions????
  106. the notorious 4.1 thump
  107. Recently rebuilt 85 ht4100...was fine....all of a sudden struggling and backfiring
  108. 4100 Valve train not oiling
  109. E49 code and possible solutions.
  110. timing
  111. 1990 Seville-Message DTC R026 / RO33
  112. E47
  113. burning
  114. e23 and e27
  115. Idle speed control problem? 90 Deville 4.5
  116. E37 code manifold air temp. sensor
  117. 85 fleet ht4100 fwd
  118. Disributor slop question
  119. 1988 Cadillac DeVille 4.5L gas gauge issue
  120. Fuel Line
  121. 4.9 oil pump in 4.5
  122. Colder Spark Plugs
  123. Twinkling lights
  124. Stainless steel exhaust, 90 Deville
  125. 4.1 Intial Timing Question
  126. 92 Deville stalling and backfiring
  127. 4.1 TPS Question
  128. 4.5L Deville runnability issues/ emissions problems
  129. Can I supercharge my 2008 STS AWD?
  130. 85 eldo w/4100
  131. UGH watter pump gasket
  132. Do Not Overfill!
  133. Techheads, answer me this:
  134. allante 4.5! awesome
  135. Replacing head gasket on 1992 4.9
  136. Fuel Imbalance (Left and Right Bank)
  137. leaky rear main oil seal
  138. Persistant Leaking
  139. Coolant Header Tank
  140. Exhaust manifold gaskets
  141. How to adjust idle speed on '91 Eldorado 4,5l V8 ?
  142. Do I have a blown head? And should I replace my motor? 93 Sedan Deville 4.9L V8
  143. What engines are compatible with 93 Sedan Deville?
  144. 4100 to 307 swap (ITS ALIVE!)
  145. high idle after washing engine
  146. spark plugs
  147. 4.9 stumbling right off idle
  148. @50MPH & above; Doggy and slight vibration
  149. Trying to Identify this Hose
  150. 4.1 to a 4.5
  151. 4.x perf options
  152. 93 deville turn signal problems
  153. Oxygen Sensor Code 44
  154. 4.5 in an Isuzu Trooper
  155. 1990 Fleetwood fwd 4.5L Surges and looses power when warm
  156. 84 Eldorado torsion bar anchors
  157. power steering pump bracket
  158. cooling fans
  159. need to replace a couple fuel injectors, any advice before pulling the fuel rail, etc
  160. 84 eldo. antena
  161. replacing a 4.1
  162. Where do I connect Tach
  163. So how old is too old for injectors?
  164. 4.9L missing
  165. Ht4100 question
  166. HT4100 Exhaust Manifold Gaskets
  167. Transmission is shot
  168. 93 deville running great
  169. Fuel Pump runs, but car won't start!
  170. 4.5 distributer 180 out?
  171. 4.9 Distributor / Timing question
  172. Changing Final Drive ratio/ ECM tuning
  173. looking for a good 4100 mechanic
  174. '84 4.1 idles up and down when the A/C is on
  175. Transmission acting funny
  176. HT4100 upkeep and maintenence
  177. P.A.S.S. security system
  178. What is effected by an E0112?
  179. Clunkin Sound
  180. lost my top-end
  181. What is F15 code? ('90 DeVille 4.5)
  182. '84 Eldorado 4100 vacuum readings
  183. Interchangeability HT4100
  184. O2 sensors : 1 righ and 1 lean
  185. Just wanted to thank you guys
  186. '92 Fleetwood DeVille random stalling
  187. New Life in my 94 caddy
  188. Anyone done a 4100 head gasket replace?
  189. Low oil pressure - stop engine
  190. Fuel pump running, car not....
  191. 1996 deville with 200 deville engine swap.Possible??
  192. 92 Eldorado Valve Cover Gaskets
  193. HT4100 engine vacuum lines with pics
  194. 92 4.9L, not sure if radiator fans are coming on
  195. Shorted MAP Sensor Signal
  196. 85 HT4100 new remanufactured motor
  197. S10 Chevy p'up; swap in a 4.5 or 4.9?
  198. Replacing the starter on a 1987 Cadillac Eldorado with 4.1L V8
  199. 4T60-E + Ratchet Shifter
  200. 85 HT4100 smokes when shut off?
  201. Intake Gaskets
  202. Gaggle of codes, ugh!
  203. HT 4100 no oil pressure new rebuilt motor
  204. rebuilt HT 4100 no oil up top or oil pressure
  205. Opinions on my very special '93 FWD C-Body
  206. 4.1 oil leak
  207. 92 deville wont start
  208. Tunercats
  209. chugging and backfiring intermittently. No codes
  210. 1992 4.9 Coolant Mystery
  211. 90 4.5 exhaust manifold threads
  212. EGR interchange
  213. 4.9 fuel pump question
  214. The DIY Injector Test Bench
  215. Wont start please help
  216. Loss of electrical; intermittent problem
  217. Alternator
  218. Distributor Sound
  219. Tired of &^%$ injectors!
  220. egr problems?4.9
  221. Help with '91 ETC codes.
  222. ECM interchangeability and swap
  223. 1991 Deville Leaking Coolant near water pump
  224. ECM specs, where do I find them?
  225. Outside temp
  226. No oil up top, what am I missing?
  227. ECM injector driver damage?
  228. Thoughts on supercharging 4.9
  229. Anyone Need a 90 deville FSM
  230. broke down before belt came off pump and belt tensioner bracket cracked
  231. Steering
  232. getting wierd OBD I codes what is it bad computer?
  233. 4.9 ever used in a hearse?
  234. need help antifreeze leak 4.9 1993 deville
  235. ok just need some info
  236. 4.5 head gaskets
  237. Code 52.
  238. 84 Seville 4.1L with "Random Toyota Acceleration" issue
  239. cooling fan module
  240. 4.5 intake manifold gasket progress
  241. 4.9 main mearing thump getting worse?
  242. lost of power
  243. 4.9 a little jittery at idle
  244. Power brake booster vacuum hose? All Cylinders?
  245. Egr
  246. Goodwrench NEW 4.1 sticker
  247. EGR tubes and TPS question.
  248. Antifreeze on the PCV Valve
  249. Ground Locations?
  250. 4.9 Reluctant to Start, Sometimes Dies at Idle