: HT4100 4.1, 4.5, 4.9



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  1. idle problem
  2. 4.9 distributor bushing wear
  3. What should I do to fix my bad gas mialage (really bad)
  4. Does the fpr have to leak to be bad?
  5. What is this sensor on the back of my 4.9 motor?
  6. Need help on alighning PRNDL switch.
  7. P/N for gaskets
  8. 88 Eldorado wont start
  9. prndl code
  10. E046 message
  11. PCV pipe???
  12. 10 mpg city and its not even like a city.Can it be my fpr.
  13. car throwing codes, decypher them please :D
  14. Fuel Pressure 92 Deville
  15. performance ??? ht4100
  16. ht4100 ?????
  17. Breather on 4T60E, is there and if so where is it?
  18. 1990 deville low reading
  19. 1990 deville vacuum
  20. Throttle body gasket?
  21. 90 Deville ignition wire, cap, rotor
  22. 91 deville stumbles after warming up
  23. 83 cadillac 4.1
  24. Timing Chain
  25. Discussion about caddeville's project (split from 4.9 into 88 Eldorado)
  26. Why Wont It Start?!!!
  27. 4.9 into 88 eldorado
  28. 83'Eldorado 2 camshafts later and it wont start
  29. Northern Indiana Users?
  30. engine ping,
  31. Speed limiter...
  32. Octane and fuel prices vs performance
  33. Any fresh tips for re-manufactured 4100 seeker?
  34. 4.5 wont start after head gaskets
  35. Advancing timing, need help...
  36. Whistling Sound
  37. Comparing Dexcool and green stuff
  38. My Fuel Injectors :(
  39. Sonofabitch !!!!!!
  40. 4100 emmissions air pump
  41. 1990 deville help
  42. Power improvement... from a carburator?
  43. Sad Caddy's in the background.
  44. Water Pump for 89 DeVille
  45. Heatsoak and Starters. Is this a Caddy problem too or just Cadero's.
  46. ISC motor problem? '94 Deville
  47. 88 DeVille Serpentine Belt
  48. Noise in Transmission?
  49. Coolant Leak - How to find?
  50. Good care (ATF) for 4T60E
  51. 1994 Deville 4.9 fuel pressure
  52. Please help an old man. (Backfiring voodoo fleetwood)
  53. Please Help! 4.9 won't shift out of second gear.
  54. Tranny problems engaging
  55. 89 deville 4.5 tranny in 93 seville 4.9 will it work?
  56. Need help asap.I have a draeded p093, is my trans gone?
  57. Some people just don't want to listen
  58. 92 Deville Rough Idle Periodic Stallin
  59. (3 4.9 bad mpg.Can low ac refrigerint cause this?
  60. Need a good write up for cleaning Tb and EGR valve please (4.9)
  61. WOT with a high mileage 4.9?
  62. Is my transmission fluid ok or do I need to change it out?
  63. 4T60E transmission problem??
  64. Messed up my transmission
  65. Simple question, what does the HT stand for
  66. Emmissions Testing and the 4.9 and BC Canada guys in here
  67. Knocking
  68. Knock sensor on HT4100?
  69. Cold air zapping coil!
  70. Error code 29
  71. Replaced everything...stumble is worse.
  72. 1984 Eldo 4.1 Engine Color Needed
  73. frontend noise
  74. Fastchip - Does it work?
  75. Does everyone have mandrel-bent piping?
  76. What is the Factory Timing for a 93 Eldorado
  77. I want a DIC (get your mind out of the gutter) :D
  78. 4.9 in Brougham??
  79. engine change
  80. Ram Air/Cold air intake for 4.9?
  81. Underdrive pulleys?
  82. Braking Engine Jump... 1990 DeVille
  83. engine miss 4.5 ???
  84. '90 DeVille ISC motor problem SOLVED
  85. 94 Deville misses backfires & DIES! whats wrong
  86. Fuel injector problem?
  87. Can't get my 4.9 to Adjust timing
  88. Valve Lash Adjustment
  89. 95 4.9 flywheel breakage?
  90. Fuel Pump Relay
  91. Not getting enough spark
  92. Not again!!
  93. Oxygen Sensor
  94. 4.9L Fuel Economy
  95. HT 4100 - Success stories
  96. Gurgling Sound In Engine?
  97. Second generation HT4100
  98. 1984 Fleetwood Code 52 ECM memory reset problem
  99. 84 Eldorado No Start
  100. engine rev's and dies
  101. Engine revs when I turn the wheel????????
  102. throddle control
  103. something happened today with the 90 deville and i don't know what
  104. unique problem 4.9
  105. Stoneys Main Bearing Diary
  106. nees help fast please
  107. 4.9 timing is hard! Idles rough, stumble on acceleration
  108. Water Pump Leakage!!!
  109. Min air ????
  110. Help with a water pump installation!!
  111. How to replace water pump on 92 seville?
  112. Another TPS ?????
  113. 87 Deville 4.1- No fuel!!!!!
  114. horsepower for 4.9
  115. A question for the gurus
  116. Trans cooler leak!
  117. 1990 Cadillac Sedan Deville high idle
  118. new oils verses old oils
  119. Minimum IDLE SCREW adjustment
  120. Oil cooler line o-ring
  121. Is my ISC motor shot? ('90 4.5L)
  122. Help with identifying a GM Goodwrench replacement block.
  123. Where is the MAP sensor located ???? 84 Seville
  124. 89 Deville engine pinging under load when warm
  125. new isc and tps
  126. Code Triggered: E66
  127. Low oil pressure at idle
  128. 4.x starter interchange list
  129. 4.9 91' coupe suspension level
  130. 4100 timing question
  131. Where do these fuel lines run??
  132. 1990 Sedan Deville 4.5L A Few Questions
  133. Uneven idle
  134. Teardown set for friday ...
  135. Ac Compressor
  136. Is this repair worth it?
  137. How Hot is too hot, Ouchi Hottie story inside.
  138. 89 cadillac 4.5 oxygen sensors
  139. Bore spacing
  140. 87 Deville NO FUEL!!!!
  141. FWD HT4100 air pump pupose?
  142. pinhole in block, leaks coolant, what should I do?
  143. 4.9 Just started running rough at idle
  144. Repair cost too high?
  145. 1990 Cadillac Sedan DeVille - Idling Too High
  146. HT4100 valve train pics
  147. Thermosat Question
  148. Am I stuck having to use an 80 series muffler?
  149. Strange COOLANT SENSOR readings--And engine cuts out while driving!!!
  150. water pump
  151. Oil Pan Gasket replacement on a 4.5L
  152. Error Code E41 Camshaft Position Sensor
  153. 4.9 starter problems
  154. 94 deville runs rough at cold start
  155. So Even After $700 dollars it still leaks!
  156. Swap ?'s
  157. Emission test failure
  158. How do I get my 4.5L to coast down to the "70 mpg" benchmark?
  159. A question about the Rotella Motor Oil
  160. Pls Help 4.9 ac compressor froze
  161. Deville shakes violently .. Please help!
  162. 1993 Deville ODB Codes Tripped, Idle Motor
  163. EGR valve replacement fixed the knocking problem!
  164. water pump leaking after i change it
  165. How to enter override E.5.3 on a '90 DeVille
  166. Hose question & error code 30 and 34
  167. 87 Deville Intake
  168. 4.9 intake manifold
  169. Feels like mis-fire. 85 fleetwood 4.1
  170. Engine replacement on an 88 Coupe
  171. fuel pump?????
  172. wot's and front oil seal
  173. oil pan gaskets
  174. emissions failed
  175. Crossover pipe
  176. I got into my diagnostics w/o a clue
  177. Code P039 Current?
  178. error code
  179. Pump thingy :/ 4.1 HT
  180. Programers???
  181. first service on my 89 deville
  182. stumbling, hesitation under load only
  183. 4.9 acceleration? ? ?
  184. Head or Intake?
  185. Are 1990 Throttle bodies obsolete?
  186. 91 DeVille Stalls Repeatedly
  187. Engine Soon EGR code
  188. Motor mounts/CV Joint
  189. Motor mounts/CV Joint
  190. Motor mounts/CV Joint
  191. Deville Acclerating
  192. need help
  193. i need help
  194. 4.5 to 4.9?
  195. HT4100 MSD IGNITON, should I ?
  196. Cooling Pipe Crack
  197. HT4100 Question
  198. 4.9l bolt on mods??
  199. I hate this car.
  200. Stumbling, hesitation, backfiring 89 Deville 4.5
  201. Distributor cap wiring help!!! 4.5 litre 89 deville
  202. HT4100 vacuum pump
  203. Yet another head gasket question
  204. Fuel injection question
  205. Fuel tank baffles or pump?
  206. 88 Coupe Deville Intake Manifold or Head gasket
  207. Help required !!
  208. Crazy Cadillacs
  209. This is a weird one
  210. Ok Guys, So what parts break? Engine Wise.
  211. 91 deville runs a little hot
  212. Fuel Pump Revisited
  213. 4.9 knocking
  214. WTF? Why won't this thing just blow up...
  215. 95 deville idle problem...2
  216. Deville 4.1 fwd rear main oil seal leak :(
  217. water pumps
  218. Nasty squeal - water pump?
  219. what EXACTLY do I need...?!
  220. 1988 Cadillac Coupe Deville Head Gasket
  221. Thermostat housing torque specs
  222. Engine compartment revisions!
  223. 1990 fleetwood engine miss please help
  224. I think I need a distributor 89 Deville 4.5
  225. A blog for Caddy fans
  226. MGB 4.5 project
  227. E52 code
  228. spark wires cover - removal help
  229. 1990 deville 4.5 won't even turn over
  230. water pump replacement
  231. Wheel Bearing installation - help....
  232. Remeber where those vac lines go.....
  233. E Codes on my 4.5 HELP
  234. E39 and E48 codes could I get some advice?
  235. Can anything go wrong/Flushing coolant?
  236. Another way to pull codes?
  237. Camshaft lifter questions
  238. exhaust manifold
  239. 4.5L ECM inputs
  240. Why I hate NTK Oxy Sensors from Now ON.
  241. Coolant pellets/conditoner
  242. Prob with 86 deville sedan with 4.9L *HELP*
  243. Ported vacuum switch--supposed to have a wire connected to it?
  244. 4.9L Aluminum Head project?
  245. Stoneage_caddy I had my car's fuel preasure checked today,have a couple of questions
  246. Anyone running an Auto meter Air/Fuel Ratio meter.
  247. What O2 sensor(s) are you using.
  248. antifreeze for my 85 fleetwoods ht4100
  249. Antifreeze for my HT4100
  250. 1989 Eldorado Biarritz MPG