: HT4100 4.1, 4.5, 4.9



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  1. transmission bolt up from 4.5L to 4.1L HT4100
  2. Does Anyone Have A Step By Step Guide To Adjusting The Tps?
  3. All Show And No Go
  4. Coolant issues must be contagious
  5. Coolant gushed out on highway, engine rattles
  6. Yet another exhaust theory question.
  7. 4.5 sounds real good with no cat
  8. Oil Pan Drain Plug Spins
  9. 87 Seville...Engine problems, knocking, overheating,do I shoot it?
  10. Can I use a regular fuel filter?
  11. Where is the fuel filter?
  12. RWD tranny for 4.9L??
  13. please help!!!!!!!
  14. Did I go overboard?
  15. Fuel: Maladies, Mayhem...Mileage!
  16. Errr... Map/Baro code. No clue what to do.
  17. Can a CS144 generator on a 4.9L be opened?
  18. Newbie here with a stall problem!
  19. The tricky TV cable...
  20. Now its knocking and oil light is on!!!
  21. Uh oh! I think my waterpump finally went!
  22. Accursed Ignition Timing...
  23. Whats makes one of your throtte blades wires Loose on one of the throttle blades
  24. How to gut a cat?
  25. Cooling Fans
  26. 90 Seville.. obd codes beginning with R??
  27. Sometimes she idles at 600-625... sometimes 900
  28. Oxygen sensor cured startup WOT
  29. Transmission rough downshifting to 1st
  30. Power Steering Leak...
  31. Tranny problem on an 89 eldo!
  32. If you need scans of service manual.. 1990 Cadillac
  33. This poor ol' car has been so abused.
  34. ****!!!! Flat Cam Now!!!!!!
  35. E53 - Distributor Signal Interrupt
  36. help
  37. HT-4100 modified for flex-fuel?
  38. 94 problem
  39. 4100 Engine Modified for Flex-Fuel?
  40. How important is the PCV?
  41. Replace the alternator or don't do it?
  42. 82 Hearse Hard Starting Cold - Codes
  43. Slight tick at idle, '92 Sedan deVille.
  44. Coolant Hell (and *gulp* headgasket?)
  45. Inconsistent loud bang from under hood
  46. mmmm Swisschesse.......ed the airbox :).
  47. Info on fuel injectors
  48. God No!!!!!!
  49. Reduced EGR flow - Detonation
  50. Fuel Pressure Inquiries
  51. My 4100 will not go past 50mph
  52. How come my motor goes full throttle on startup?
  53. Why are 4.x lifters noisy?
  54. 4.5 TBI vs 4.1 TBI
  55. power steering pump
  56. 93 Deville Loss of Power getting 6-7 MPG !!!
  57. Need Help Bad!
  58. 4.9 Exhaust
  59. 83 Eldorado swapping 4100 motors
  60. Wikipedia contradicted what I thought I knew
  61. I bought another HT4100 - a hearse
  62. Striped 4.9 Head Bolts Please Help
  63. Quick alternator question
  64. Please help! #1 service main part#?? 4.9 3545718 no good according to Cadillac?
  65. changing the distributer cap and rotor on a 91 deville 4.9
  66. Kill Switch - 1990 Cadillac DeVille
  67. Advice! My idle has gone nuts!
  68. SeaFoam Method
  69. Need Throttle Body Help!
  70. Shorted Mat sensor signal, E37.
  71. rhoads lifters?
  72. Say I buy a new 4.5 and transmission.. give me a rundown of wht it takes to put it in
  73. YES!!! It RUNS!!!!!
  74. Plugs and wires..
  75. Shadetree hall of shame.. I did something STUPID
  76. 4.9 Cracked Block Leaking Coolant
  77. How bad is this on the transmission...
  78. Rattling...
  79. Questions about replacing 4.5 motor/tranny
  80. 4.9 is running niiiiiiiiice.....
  81. Questions on ISC
  82. 4100 Timing Advance question.
  83. what causes an e55?
  84. 92 deville 4.9 timing cover question
  85. Why Does ?
  86. Fuel Injector Selection
  87. No overdrive
  88. Wobbly pulley
  89. 4.1 spark plug ????
  90. How much does 4.1 engine weigh??
  91. 1990 Cadillac Sedan DeVille
  92. Here is a video of the 86 fleetwood.
  93. Who's 4100 sounds like this?
  94. What is the BEST MOTOR FLUSH out there?
  95. Collapsed lifter!
  96. MAT sensor?
  97. Engine cradle bolts?
  98. Cam shaft test?...
  99. Can't get these bolts off...
  100. GM top end cleaner or seafoam..
  101. I broke my motor
  102. What causes a f48 code?
  103. Need to know ?
  104. GM Too Expensive Cleaner...
  105. oil problem
  106. I Am A Retard
  107. Engine Miss, (electronic not mechanical)
  108. Help with Plug Wires and a few other items on 4.9L 93 SDV
  109. 1985 4.1 Help
  110. 93' 4.9 Eldorado Heating
  111. Factory 4.x alternator
  112. Back firing/stalling/knocking HT-4100
  113. 88 deville tech question?
  114. Engine Upgrade?
  115. Little help with throttle issue...
  116. Custom Exhaust Manifolds and down pipe... for the 4.9
  117. 4.9 or 4.6
  118. FWD 86 Fleetwood For Sale.
  119. whats the diffrence?
  120. Help with cold stalling problem
  121. Misfire and absent fuel
  122. Timing 4.1L How to loosen dist???
  123. Tranny fluid frustration
  124. rough idle and bad miss
  125. Engine paranoia
  126. What are the pro's and con's of upgradeing your ignition system on a 4.9?
  127. remove fuel rail to change fpr on 4.9
  128. EGR Valve Location
  129. A question of exhaust theory...
  130. ecm data
  131. Fuel Injector Ripoff...
  132. Diagnostic code ?/EGR Valve
  133. '85 Deville, HT4100, considerable problems running properly...seeking help
  134. Looking For More Power From My 4.1
  135. Serpentine Belt Diagram 4100
  136. OBDI vs OBDII; AC compressor
  137. idle problem
  138. 4.9 distributor bushing wear
  139. What should I do to fix my bad gas mialage (really bad)
  140. Does the fpr have to leak to be bad?
  141. What is this sensor on the back of my 4.9 motor?
  142. Need help on alighning PRNDL switch.
  143. P/N for gaskets
  144. 88 Eldorado wont start
  145. prndl code
  146. E046 message
  147. PCV pipe???
  148. 10 mpg city and its not even like a city.Can it be my fpr.
  149. car throwing codes, decypher them please :D
  150. Fuel Pressure 92 Deville
  151. performance ??? ht4100
  152. ht4100 ?????
  153. Breather on 4T60E, is there and if so where is it?
  154. 1990 deville low reading
  155. 1990 deville vacuum
  156. Throttle body gasket?
  157. 90 Deville ignition wire, cap, rotor
  158. 91 deville stumbles after warming up
  159. 83 cadillac 4.1
  160. Timing Chain
  161. Discussion about caddeville's project (split from 4.9 into 88 Eldorado)
  162. Why Wont It Start?!!!
  163. 4.9 into 88 eldorado
  164. 83'Eldorado 2 camshafts later and it wont start
  165. Northern Indiana Users?
  166. engine ping,
  167. Speed limiter...
  168. Octane and fuel prices vs performance
  169. Any fresh tips for re-manufactured 4100 seeker?
  170. 4.5 wont start after head gaskets
  171. Advancing timing, need help...
  172. Whistling Sound
  173. Comparing Dexcool and green stuff
  174. My Fuel Injectors :(
  175. Sonofabitch !!!!!!
  176. 4100 emmissions air pump
  177. 1990 deville help
  178. Power improvement... from a carburator?
  179. Sad Caddy's in the background.
  180. Water Pump for 89 DeVille
  181. Heatsoak and Starters. Is this a Caddy problem too or just Cadero's.
  182. ISC motor problem? '94 Deville
  183. 88 DeVille Serpentine Belt
  184. Noise in Transmission?
  185. Coolant Leak - How to find?
  186. Good care (ATF) for 4T60E
  187. 1994 Deville 4.9 fuel pressure
  188. Please help an old man. (Backfiring voodoo fleetwood)
  189. Please Help! 4.9 won't shift out of second gear.
  190. Tranny problems engaging
  191. 89 deville 4.5 tranny in 93 seville 4.9 will it work?
  192. Need help asap.I have a draeded p093, is my trans gone?
  193. Some people just don't want to listen
  194. 92 Deville Rough Idle Periodic Stallin
  195. (3 4.9 bad mpg.Can low ac refrigerint cause this?
  196. Need a good write up for cleaning Tb and EGR valve please (4.9)
  197. WOT with a high mileage 4.9?
  198. Is my transmission fluid ok or do I need to change it out?
  199. 4T60E transmission problem??
  200. Messed up my transmission
  201. Simple question, what does the HT stand for
  202. Emmissions Testing and the 4.9 and BC Canada guys in here
  203. Knocking
  204. Knock sensor on HT4100?
  205. Cold air zapping coil!
  206. Error code 29
  207. Replaced everything...stumble is worse.
  208. 1984 Eldo 4.1 Engine Color Needed
  209. frontend noise
  210. Fastchip - Does it work?
  211. Does everyone have mandrel-bent piping?
  212. What is the Factory Timing for a 93 Eldorado
  213. I want a DIC (get your mind out of the gutter) :D
  214. 4.9 in Brougham??
  215. engine change
  216. Ram Air/Cold air intake for 4.9?
  217. Underdrive pulleys?
  218. Braking Engine Jump... 1990 DeVille
  219. engine miss 4.5 ???
  220. '90 DeVille ISC motor problem SOLVED
  221. 94 Deville misses backfires & DIES! whats wrong
  222. Fuel injector problem?
  223. Can't get my 4.9 to Adjust timing
  224. Valve Lash Adjustment
  225. 95 4.9 flywheel breakage?
  226. Fuel Pump Relay
  227. Not getting enough spark
  228. Not again!!
  229. Oxygen Sensor
  230. 4.9L Fuel Economy
  231. HT 4100 - Success stories
  232. Gurgling Sound In Engine?
  233. Second generation HT4100
  234. 1984 Fleetwood Code 52 ECM memory reset problem
  235. 84 Eldorado No Start
  236. engine rev's and dies
  237. Engine revs when I turn the wheel????????
  238. throddle control
  239. something happened today with the 90 deville and i don't know what
  240. unique problem 4.9
  241. Stoneys Main Bearing Diary
  242. nees help fast please
  243. 4.9 timing is hard! Idles rough, stumble on acceleration
  244. Water Pump Leakage!!!
  245. Min air ????
  246. Help with a water pump installation!!
  247. How to replace water pump on 92 seville?
  248. Another TPS ?????
  249. 87 Deville 4.1- No fuel!!!!!
  250. horsepower for 4.9