: HT4100 4.1, 4.5, 4.9



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  1. 4T60E transmission problem??
  2. Messed up my transmission
  3. Simple question, what does the HT stand for
  4. Emmissions Testing and the 4.9 and BC Canada guys in here
  5. Knocking
  6. Knock sensor on HT4100?
  7. Cold air zapping coil!
  8. Error code 29
  9. Replaced everything...stumble is worse.
  10. 1984 Eldo 4.1 Engine Color Needed
  11. frontend noise
  12. Fastchip - Does it work?
  13. Does everyone have mandrel-bent piping?
  14. What is the Factory Timing for a 93 Eldorado
  15. I want a DIC (get your mind out of the gutter) :D
  16. 4.9 in Brougham??
  17. engine change
  18. Ram Air/Cold air intake for 4.9?
  19. Underdrive pulleys?
  20. Braking Engine Jump... 1990 DeVille
  21. engine miss 4.5 ???
  22. '90 DeVille ISC motor problem SOLVED
  23. 94 Deville misses backfires & DIES! whats wrong
  24. Fuel injector problem?
  25. Can't get my 4.9 to Adjust timing
  26. Valve Lash Adjustment
  27. 95 4.9 flywheel breakage?
  28. Fuel Pump Relay
  29. Not getting enough spark
  30. Not again!!
  31. Oxygen Sensor
  32. 4.9L Fuel Economy
  33. HT 4100 - Success stories
  34. Gurgling Sound In Engine?
  35. Second generation HT4100
  36. 1984 Fleetwood Code 52 ECM memory reset problem
  37. 84 Eldorado No Start
  38. engine rev's and dies
  39. Engine revs when I turn the wheel????????
  40. throddle control
  41. something happened today with the 90 deville and i don't know what
  42. unique problem 4.9
  43. Stoneys Main Bearing Diary
  44. nees help fast please
  45. 4.9 timing is hard! Idles rough, stumble on acceleration
  46. Water Pump Leakage!!!
  47. Min air ????
  48. Help with a water pump installation!!
  49. How to replace water pump on 92 seville?
  50. Another TPS ?????
  51. 87 Deville 4.1- No fuel!!!!!
  52. horsepower for 4.9
  53. A question for the gurus
  54. Trans cooler leak!
  55. 1990 Cadillac Sedan Deville high idle
  56. new oils verses old oils
  57. Minimum IDLE SCREW adjustment
  58. Oil cooler line o-ring
  59. Is my ISC motor shot? ('90 4.5L)
  60. Help with identifying a GM Goodwrench replacement block.
  61. Where is the MAP sensor located ???? 84 Seville
  62. 89 Deville engine pinging under load when warm
  63. new isc and tps
  64. Code Triggered: E66
  65. Low oil pressure at idle
  66. 4.x starter interchange list
  67. 4.9 91' coupe suspension level
  68. 4100 timing question
  69. Where do these fuel lines run??
  70. 1990 Sedan Deville 4.5L A Few Questions
  71. Uneven idle
  72. Teardown set for friday ...
  73. Ac Compressor
  74. Is this repair worth it?
  75. How Hot is too hot, Ouchi Hottie story inside.
  76. 89 cadillac 4.5 oxygen sensors
  77. Bore spacing
  78. 87 Deville NO FUEL!!!!
  79. FWD HT4100 air pump pupose?
  80. pinhole in block, leaks coolant, what should I do?
  81. 4.9 Just started running rough at idle
  82. Repair cost too high?
  83. 1990 Cadillac Sedan DeVille - Idling Too High
  84. HT4100 valve train pics
  85. Thermosat Question
  86. Am I stuck having to use an 80 series muffler?
  87. Strange COOLANT SENSOR readings--And engine cuts out while driving!!!
  88. water pump
  89. Oil Pan Gasket replacement on a 4.5L
  90. Error Code E41 Camshaft Position Sensor
  91. 4.9 starter problems
  92. 94 deville runs rough at cold start
  93. So Even After $700 dollars it still leaks!
  94. Swap ?'s
  95. Emission test failure
  96. How do I get my 4.5L to coast down to the "70 mpg" benchmark?
  97. A question about the Rotella Motor Oil
  98. Pls Help 4.9 ac compressor froze
  99. Deville shakes violently .. Please help!
  100. 1993 Deville ODB Codes Tripped, Idle Motor
  101. EGR valve replacement fixed the knocking problem!
  102. water pump leaking after i change it
  103. How to enter override E.5.3 on a '90 DeVille
  104. Hose question & error code 30 and 34
  105. 87 Deville Intake
  106. 4.9 intake manifold
  107. Feels like mis-fire. 85 fleetwood 4.1
  108. Engine replacement on an 88 Coupe
  109. fuel pump?????
  110. wot's and front oil seal
  111. oil pan gaskets
  112. emissions failed
  113. Crossover pipe
  114. I got into my diagnostics w/o a clue
  115. Code P039 Current?
  116. error code
  117. Pump thingy :/ 4.1 HT
  118. Programers???
  119. first service on my 89 deville
  120. stumbling, hesitation under load only
  121. 4.9 acceleration? ? ?
  122. Head or Intake?
  123. Are 1990 Throttle bodies obsolete?
  124. 91 DeVille Stalls Repeatedly
  125. Engine Soon EGR code
  126. Motor mounts/CV Joint
  127. Motor mounts/CV Joint
  128. Motor mounts/CV Joint
  129. Deville Acclerating
  130. need help
  131. i need help
  132. 4.5 to 4.9?
  133. HT4100 MSD IGNITON, should I ?
  134. Cooling Pipe Crack
  135. HT4100 Question
  136. 4.9l bolt on mods??
  137. I hate this car.
  138. Stumbling, hesitation, backfiring 89 Deville 4.5
  139. Distributor cap wiring help!!! 4.5 litre 89 deville
  140. HT4100 vacuum pump
  141. Yet another head gasket question
  142. Fuel injection question
  143. Fuel tank baffles or pump?
  144. 88 Coupe Deville Intake Manifold or Head gasket
  145. Help required !!
  146. Crazy Cadillacs
  147. This is a weird one
  148. Ok Guys, So what parts break? Engine Wise.
  149. 91 deville runs a little hot
  150. Fuel Pump Revisited
  151. 4.9 knocking
  152. WTF? Why won't this thing just blow up...
  153. 95 deville idle problem...2
  154. Deville 4.1 fwd rear main oil seal leak :(
  155. water pumps
  156. Nasty squeal - water pump?
  157. what EXACTLY do I need...?!
  158. 1988 Cadillac Coupe Deville Head Gasket
  159. Thermostat housing torque specs
  160. Engine compartment revisions!
  161. 1990 fleetwood engine miss please help
  162. I think I need a distributor 89 Deville 4.5
  163. A blog for Caddy fans
  164. MGB 4.5 project
  165. E52 code
  166. spark wires cover - removal help
  167. 1990 deville 4.5 won't even turn over
  168. water pump replacement
  169. Wheel Bearing installation - help....
  170. Remeber where those vac lines go.....
  171. E Codes on my 4.5 HELP
  172. E39 and E48 codes could I get some advice?
  173. Can anything go wrong/Flushing coolant?
  174. Another way to pull codes?
  175. Camshaft lifter questions
  176. exhaust manifold
  177. 4.5L ECM inputs
  178. Why I hate NTK Oxy Sensors from Now ON.
  179. Coolant pellets/conditoner
  180. Prob with 86 deville sedan with 4.9L *HELP*
  181. Ported vacuum switch--supposed to have a wire connected to it?
  182. 4.9L Aluminum Head project?
  183. Stoneage_caddy I had my car's fuel preasure checked today,have a couple of questions
  184. Anyone running an Auto meter Air/Fuel Ratio meter.
  185. What O2 sensor(s) are you using.
  186. antifreeze for my 85 fleetwoods ht4100
  187. Antifreeze for my HT4100
  188. 1989 Eldorado Biarritz MPG
  189. 1991 deville engine dies when coasting
  190. The Homemade 5 Liter PFI Project .....
  191. 85 seville valve lifters
  192. Blown 4.1 ht in 83 eldorado ?? how to tell ?
  193. Bogging problem
  194. Throttle body problem, help please
  195. I knew I saw it someplace, now where did it go, no not my sanity but close?
  196. 4.5......which sensor is bad?
  197. 4.9 bearing part number or TSB?
  198. Help with HT4100 water pump
  199. which is the better motor
  200. Nitrous Question
  201. 1995 DeVille Idle Fluctuation
  202. issues w/ back pressure?!?
  203. Well the pump is on, but my serpentine belt...what?
  204. 83 Sedan Deville 4100
  205. Its an Invasion 4.9, 5spd Stick Fiero
  206. why I love my 4.5...
  207. 1985 deville coolant and heater core questions.
  208. New member here, and I need some '93 Deville help (water pump installation)
  209. 1990 Allante Bosch fuel injectors/FiveOMotorsports
  210. Cleaning '90 EGR 4.5
  211. Groll Polluter FIXED??????????????????
  212. Where does this fuel line run?
  213. 88 Deville.Tensioner Pulley.
  214. 85 4100 is running rough and hesitating
  215. car will not go past 35mph 82 with a 4.1
  216. Does anyone have a picture or info on the Negative block ground?
  217. EGR Cleaning
  218. Cheap quality Rebuilt transmissions
  219. 4.5 Fast Idle problem
  220. I need a no Yo-Yo shift-kit immediately!! '84 RWD DeVille
  221. 93 Runs rough & loud when wet
  222. Spark Plug Replacement
  223. Fuel Injector Compatiblity
  224. Oil pan gasket
  225. No Spark/ No Start Problem/ Pulling what hair I have left out!
  226. oil change
  227. Accel fuel injectors
  228. Alldata (autozone)????????????????????
  229. A/C Compressor
  230. Help ECM E85
  231. Fuel Pumps on '82-85 HT4100 -- Life span??
  232. Analyzing Fuel Economy
  233. Difference between '82 vs '85 Fuel Injectors on the HT4100????
  234. Oil Theories
  235. Got Injectors? 4.9/4.5
  236. E048
  237. Why Wont This Car Start After I Put In A New Alternator.
  238. '85 Throttle Body in an 82 Eldo???
  239. 4.9 knocking
  240. Hole In Muffler(Recommended Replacement)
  241. 91 DeVille
  242. In reguard to my deville's rough idleing,could it just need an induction service?
  243. Code question.
  244. Plugs for 4.9
  245. 1994 Deville 4.9 (Serpentine Belt) - Save Me From the Junk Yard
  246. Inaccurate gas readout?
  247. 1990 Allante fuel injectors
  248. 4.9 with sleeves?
  249. 4.9 Air Cleaner
  250. Stoneage_caddy my deville is stuttering when idleing,any ideas?