: HT4100 4.1, 4.5, 4.9



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  1. 88 seville instrument panel
  2. Need Help with timing/tune-up on 84 Cadillac Deville HT4100
  3. Bad Misfire on Low Mile 4.9 (1991 Eldorado)
  4. thinking about getting mods on 4.5
  5. Vapor Canister Filter
  6. Oil for 4100
  7. Code E49 Air Injection System Fault
  8. 4.5 distributor removal
  9. significant improvements in 94/95 4.9?
  10. Name the Emission Tube for 1990 4.5
  11. source for 4.x cylinder sleeves
  12. 4.9 throttle body interchange data
  13. Engine Swap Process
  14. 4.9 Individual Throttle Body project
  15. 91 Deville - skipping and no 1st or 4th gear-HELP
  16. 96 deville alternator
  17. Falling MPG - 1990 Deville/Fleetwood
  18. 4.5 carb and distributor conversion
  19. A/C Repair
  20. 4.9 running rough after spark plug change Help!
  21. New annoying message: "Change Oil Soon" (just changed it last month!)
  22. 4.9 Horrible Idle
  23. 1993 Distributor, and Minimum Air
  24. 4.1L Idle Speed Issues
  25. 4.9 blown head gasket
  26. codes i pulled from my cadi
  27. idle engine engine hot please help
  28. Oil in coolant, 4.5
  29. 1985 Cadillac El Dorado water pump!
  30. Bad A/C Delco Waterpump. 91 Eldo 4.9 Anything better than AC Delco Waterpumps?
  31. 90' 4.5L Deville Head Bolt Leaking
  32. 4.9 no crank
  33. car is dieing at idle. P048 current trouble code.
  34. 93 Seville 4.9L sporadic miss at idle. Spark Plugs?
  35. Intermittent throttle sticking
  36. Looking for HT4100 Cylinder head guide pin
  37. E 90 Code - VCC Brake Switch Signal Problem
  38. squeeling under the hood
  39. Broke hose
  40. A Time To Celebrate
  41. 7mpg average! Help if anyone can.
  42. Heater Core Replace BRRR COLD!
  43. WARNING! 4.9L Dayco Tensioner Pulley warning: DO NOT BUY #231081!!!
  44. Throttle Questions
  45. HT4100 (4.5 sleeves) Head Bolt Torque Sequence and Specifications?
  46. 1986 Seville HT4100-Overcooling issue
  47. Can't find the engine temperature switch.
  48. Need Help PLEASE HELP!!! Oil dipstick problem
  49. Cold Air Intake?
  50. Oil pan and pump
  51. Can bad ECM cause 85 fleetwood brougham ht4100 miss bad, backfire and barely run?
  52. New Car Got Questions????
  53. the notorious 4.1 thump
  54. Recently rebuilt 85 ht4100...was fine....all of a sudden struggling and backfiring
  55. 4100 Valve train not oiling
  56. E49 code and possible solutions.
  57. timing
  58. 1990 Seville-Message DTC R026 / RO33
  59. E47
  60. burning
  61. e23 and e27
  62. Idle speed control problem? 90 Deville 4.5
  63. E37 code manifold air temp. sensor
  64. 85 fleet ht4100 fwd
  65. Disributor slop question
  66. 1988 Cadillac DeVille 4.5L gas gauge issue
  67. Fuel Line
  68. 4.9 oil pump in 4.5
  69. Colder Spark Plugs
  70. Twinkling lights
  71. Stainless steel exhaust, 90 Deville
  72. 4.1 Intial Timing Question
  73. 92 Deville stalling and backfiring
  74. 4.1 TPS Question
  75. 4.5L Deville runnability issues/ emissions problems
  76. Can I supercharge my 2008 STS AWD?
  77. 85 eldo w/4100
  78. UGH watter pump gasket
  79. Do Not Overfill!
  80. Techheads, answer me this:
  81. allante 4.5! awesome
  82. Replacing head gasket on 1992 4.9
  83. Fuel Imbalance (Left and Right Bank)
  84. leaky rear main oil seal
  85. Persistant Leaking
  86. Coolant Header Tank
  87. Exhaust manifold gaskets
  88. How to adjust idle speed on '91 Eldorado 4,5l V8 ?
  89. Do I have a blown head? And should I replace my motor? 93 Sedan Deville 4.9L V8
  90. What engines are compatible with 93 Sedan Deville?
  91. 4100 to 307 swap (ITS ALIVE!)
  92. high idle after washing engine
  93. spark plugs
  94. 4.9 stumbling right off idle
  95. @50MPH & above; Doggy and slight vibration
  96. Trying to Identify this Hose
  97. 4.1 to a 4.5
  98. 4.x perf options
  99. 93 deville turn signal problems
  100. Oxygen Sensor Code 44
  101. 4.5 in an Isuzu Trooper
  102. 1990 Fleetwood fwd 4.5L Surges and looses power when warm
  103. 84 Eldorado torsion bar anchors
  104. power steering pump bracket
  105. cooling fans
  106. need to replace a couple fuel injectors, any advice before pulling the fuel rail, etc
  107. 84 eldo. antena
  108. replacing a 4.1
  109. Where do I connect Tach
  110. So how old is too old for injectors?
  111. 4.9L missing
  112. Ht4100 question
  113. HT4100 Exhaust Manifold Gaskets
  114. Transmission is shot
  115. 93 deville running great
  116. Fuel Pump runs, but car won't start!
  117. 4.5 distributer 180 out?
  118. 4.9 Distributor / Timing question
  119. Changing Final Drive ratio/ ECM tuning
  120. looking for a good 4100 mechanic
  121. '84 4.1 idles up and down when the A/C is on
  122. Transmission acting funny
  123. HT4100 upkeep and maintenence
  124. P.A.S.S. security system
  125. What is effected by an E0112?
  126. Clunkin Sound
  127. lost my top-end
  128. What is F15 code? ('90 DeVille 4.5)
  129. '84 Eldorado 4100 vacuum readings
  130. Interchangeability HT4100
  131. O2 sensors : 1 righ and 1 lean
  132. Just wanted to thank you guys
  133. '92 Fleetwood DeVille random stalling
  134. New Life in my 94 caddy
  135. Anyone done a 4100 head gasket replace?
  136. Low oil pressure - stop engine
  137. Fuel pump running, car not....
  138. 1996 deville with 200 deville engine swap.Possible??
  139. 92 Eldorado Valve Cover Gaskets
  140. HT4100 engine vacuum lines with pics
  141. 92 4.9L, not sure if radiator fans are coming on
  142. Shorted MAP Sensor Signal
  143. 85 HT4100 new remanufactured motor
  144. S10 Chevy p'up; swap in a 4.5 or 4.9?
  145. Replacing the starter on a 1987 Cadillac Eldorado with 4.1L V8
  146. 4T60-E + Ratchet Shifter
  147. 85 HT4100 smokes when shut off?
  148. Intake Gaskets
  149. Gaggle of codes, ugh!
  150. HT 4100 no oil pressure new rebuilt motor
  151. rebuilt HT 4100 no oil up top or oil pressure
  152. Opinions on my very special '93 FWD C-Body
  153. 4.1 oil leak
  154. 92 deville wont start
  155. Tunercats
  156. chugging and backfiring intermittently. No codes
  157. 1992 4.9 Coolant Mystery
  158. 90 4.5 exhaust manifold threads
  159. EGR interchange
  160. 4.9 fuel pump question
  161. The DIY Injector Test Bench
  162. Wont start please help
  163. Loss of electrical; intermittent problem
  164. Alternator
  165. Distributor Sound
  166. Tired of &^%$ injectors!
  167. egr problems?4.9
  168. Help with '91 ETC codes.
  169. ECM interchangeability and swap
  170. 1991 Deville Leaking Coolant near water pump
  171. ECM specs, where do I find them?
  172. Outside temp
  173. No oil up top, what am I missing?
  174. ECM injector driver damage?
  175. Thoughts on supercharging 4.9
  176. Anyone Need a 90 deville FSM
  177. broke down before belt came off pump and belt tensioner bracket cracked
  178. Steering
  179. getting wierd OBD I codes what is it bad computer?
  180. 4.9 ever used in a hearse?
  181. need help antifreeze leak 4.9 1993 deville
  182. ok just need some info
  183. 4.5 head gaskets
  184. Code 52.
  185. 84 Seville 4.1L with "Random Toyota Acceleration" issue
  186. cooling fan module
  187. 4.5 intake manifold gasket progress
  188. 4.9 main mearing thump getting worse?
  189. lost of power
  190. 4.9 a little jittery at idle
  191. Power brake booster vacuum hose? All Cylinders?
  192. Egr
  193. Goodwrench NEW 4.1 sticker
  194. EGR tubes and TPS question.
  195. Antifreeze on the PCV Valve
  196. Ground Locations?
  197. 4.9 Reluctant to Start, Sometimes Dies at Idle
  198. I think its the alternator
  199. how long to change all motor mounts on 93 deville
  200. Vacuum leak somewhere inside the dash
  201. What problems in removing 4.9?
  202. Spark Plugs: What do YOU run?
  203. 4.9l engine ticking noise: lifter?
  204. 4.5 or 4.9
  205. 4.5 or 4.9 Engine
  206. Pump thump
  207. Replaced intake gasket and messed something up!
  208. When I First Start The Engine...
  209. Failed emissions
  210. 89 Eldorado engine misfire
  211. Ht-4100 rwd info
  212. 4.5 V8 Underpowered? & 92-93 Deville?
  213. HT-4100 oil pan
  214. 89 deville 4.5 antifreeze leak?
  215. The screws with no size...
  216. Does a 4.5 and 4.9 share the same transmission?
  217. 93 deville passed emissions and state inspection but still getting 10MPG
  218. 1993 Cadillac Deville 4.9L computer problem (ISC problem continued)
  219. 95 Deville base 4.9 fuel pressure issues, FPR or fuel pump?
  220. Hopefull found out my problem with my 93 deville 4.9
  221. 4.5L Fuel Injectors (Aftermarket)
  222. Thinking about buying a 1997 cadillac eldorado
  223. HT4100 with serpentine belt
  224. new Tranny
  225. Serpenting belt - when to change?
  226. 1993 DeVille ISC Problem
  227. Thanks All
  228. 95 4.9l deville idle problem
  229. Throttle to the moon....
  230. 1990 Deville-- Code E41
  231. still has problems
  232. Help Diagnosing Noise
  233. Bad tps 93 deville
  234. Catalytic
  235. something loose on intake manifold?
  236. What would cause an O2 sensor to turn red?
  237. Putting Restore in my 93 Deville
  238. 93 deville problems
  239. Merry christmas!
  240. The 325-4l dipstick I broke inside fill-tube...
  241. repair shops in oakland, ca.
  242. Valves...4100
  243. Rocker Arm Guide...what?
  244. Fuel Pressure
  245. 93 Deville main bearing thump
  246. Finding Used 4.9l engine assembly's
  247. EGR Tubes clogging up
  248. Power steering pulley
  249. Distributor removal and install on 85 rwd ht4100
  250. Timing Mark bouncing around