: HT4100 4.1, 4.5, 4.9



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  1. Trouble codes?
  2. I need a new throttle body
  3. 4.9 timing chain replacement ?
  4. Popular car... at the junkyard
  5. 4.9 swap
  6. Code E26 and E27
  7. 4100? worth rebuilding
  8. Need help finding power steering bracket
  9. 4.1 dampener pulley bolt
  10. ht4100- stop engine-oil pressure light flickers
  11. "The Cadillac 4.1 liter engine is beyond hope for this formula"
  12. 94 Deville won't start
  13. '94 Deville 4.9l torque conv. clutch prob?
  14. 1986 Eldorado stalls under stress
  15. 4.9's torque
  16. Right the wrongs in a 4.1 (4100)
  17. 4.9 engine
  18. 4.9 liter vanity cover removal.
  19. The Mythical 4.9 performance Chip
  20. 4.5 Liter - Last chance before I need to give it up.
  21. Possible ECM problem
  22. Got mother's 1985 Fleetwood Brougham with HT4100
  23. Member 92 Seville 89 - Old Threads
  24. Water Pump Tasks ahead
  25. wont start cold
  26. egr question
  27. Problem of the day :)
  28. 2002 DTS trouble
  29. 250 or 252?
  30. 4.9 isc adjustment: Thanks Ranger
  31. 4.5 engine swap
  32. Hall Effect
  33. How do you get to the back of the FDC
  34. 4100 RWD replacement source
  35. mechanical water temp guage
  36. deck height and bore spacing
  37. 88 4.5L Running rough
  38. 90 eldo-possible tranny issue and engine issue
  39. Exhaust Muffler
  40. 4.9 litre--flat tappet engine?
  41. 4.1 to 4.5
  42. New to Throttle Body Injection?
  43. Suddenly Won't start, no Spark, 1985 Eldorado
  44. Haynes or Chiltons
  45. 4100 Updated intake gasket set
  46. '93 Eldorado, 4.9L - Partial Fire, No Start
  47. How do you clean 4.5 throttle body?
  48. oil change
  49. Crazy Coolant Temperatures
  50. Mustard like substance in radiator
  51. Help my 91 cadilliac deville 4.9
  52. Two Problems Not Starting and Stalling
  53. 4.9 water pump
  54. Broken Upper Radiator Hose Connector
  55. 1994 Sedan Deville questions...
  56. Piston 6 hits sparkplug - Bad timing
  57. Coupe Deville 4.5 Rough Running
  58. new and need some help please!!!!!
  59. What should I do, buy or walk? 89 Coupe Deville
  60. E20 - Open Fuel Pump Circut Feedback Signal
  61. 4.1 Running Bad Again
  62. 4.5 Allante Intake on a 4.9 Eldorado
  63. heat issues!!!!
  64. Need Help ASAP!!!!!!
  65. Lound thump when shutting off engine, then no restart
  66. 4.9 Oil Filter ??
  67. 4.9 and spark knock
  68. I really need help, please!
  69. will my 4.9 fit?
  70. I'm going to try the 4.1->4.9 conversion
  71. 1986 cadillac Stalling up hills, need help ASAP
  72. Case of the Evil Tranny
  73. Question when torquing headbolts 4.9L
  74. Synthetic oil no no in 4100
  75. New brain wracking symptom...
  76. For those of you with coolant loss issues.
  77. '93 Eldorado, 4.9L - Bad Fuel Pump?
  78. 4.1 Spun a cam bearing,
  79. C bieng displayed
  80. Is this engine rebuildable?
  81. Flowmaster Exhaust for a 4.9 Deville
  82. A/C Compressor Belt Bypass - 89 Deville 4.5
  83. all 4100's interchangable?
  84. car surges badly when stopping
  85. Blown Head gasket
  86. RPO Code of the 90 4.5L V8?
  87. 4.9 stalls
  88. Choke?
  89. New Member Introduction
  90. Allante HT4100
  91. 4100 Book
  92. replacement fuel injectors
  93. how hard is it to drop the oil pan
  94. HT4100 Recommended Oil Viscosity
  95. Tuning for E10 gasoline
  96. 4.9l oil leak
  97. Poor gas mileage/Sensors, please help a bit!
  98. HT4100 PCV valve, location?
  99. Can fuel injector effect the map sensor and how it function
  100. Losing coolant when the heat is turned on.
  101. 4.9L 1995 deville car ran out of gas but wont start
  102. VIDEO of HT4100 WOT
  103. Radiator Drain Plug
  104. 86-87 Seville, Eldorado 4.9L Swap
  105. Water Pump on an '85 fleetwood
  106. engine id
  107. 4.9 firing order???
  108. Won't start when hot (intermittent)
  109. 92 Deville losing power after turning a corner
  110. 76 Eldo 500 FI Problems
  111. swap 4.1 to a 4.5 or 4.9 in 85 Seville?
  112. swap 4.1 to a 4.5 or 49 in 85 Seville?
  113. More HT4100 Tips
  114. engine knock in my 1994 sedan deville 4.9L
  115. Well, i raced 3 cars in one night with my 4.1
  116. No start, at operating temp, Flooding on restart
  117. Help Ecm/PCM Questions
  118. New Addition to the Family--85 Sedan Deville
  119. Code Analyzer
  120. slight hesitation at cold low-gear
  121. HT4100 chosen as one of the worst engines of all time
  122. Valves too far in advance or too far retarded?
  123. 1992 Cadillac STS 4.9L Issues
  124. Decking out my 4.9
  125. '93 Eldorado 4.9L - P012 & P053 Codes
  126. Urgent Help W/engine
  127. Code e048 what's the trigger?
  128. which O2 sensor for 85 DeVille/HT4100
  129. 4.9 Code 41 Saga Continues!!!
  130. 83 fleetwood 4100
  131. Huge Problem HELP !!!
  132. Cam sensor 4.9
  133. 4100 Newbie needs help!
  134. HT4100 "STOP ENGINE-OIL PRESS" light flickering
  135. Interesting 4.9 symptom, need ideas
  136. Help wth tps (Throttle Position Sensor) problem/ Or just removing Throttle Body
  137. Injector Trouble 4.9
  138. Crank pulley wont spin...
  139. She runs!
  140. 84 Seville - low speed hesitation
  141. How long will it last?
  142. 4.5 to 4.9
  143. 85 Seville 4.1 Knocking?
  144. poor gas milage
  145. Outside temp sensor location---4.9 litre.
  146. My Car is Fixed!!! New Camshaft and Lifters
  147. Water pumps...Generally speaking.
  148. NOISEY cold start ups with the pulleys, only to quiet down when warm.
  149. 93 deville 4.9 noisey cold pulleys, quiet when warm. whats going out?
  150. My speedometer is WAY off, and has problems in park
  151. 91 deville Starter enable relay
  152. gas issue
  153. '88 DeVille EXTREME ISC problems
  154. 92 STS - Stalls anywhere but the highway.
  155. 93 Eldawg Stalls while driving but drives great
  156. EGR System Question
  157. 1987 Cadillac Deville No Fuel Preasure Im lost
  158. ECM questions
  159. Bosch 19# Injectors
  160. I Lost First Gear, Car barely moves with throttle!
  161. 83 Deville Performance?
  162. would an oil stabilizer help with burning
  163. OBD1 Codes
  164. HT4100 Brand New
  165. Help! 1983 Seville with HT-4100 FWD, need ideas for a swap-out?
  166. 85 Fleetwood FWD Won't Start! Help!
  167. Any good 4.x mechanics in the Detroit area?
  168. Water Pump Removal
  169. 1985 4.1L Distibutor Drive Gear for oil pump
  170. 6.0L? say what?
  171. '91 4.9 swap into a rear drive application?
  172. 1985 Fleetwood FWD 4.1L hesitation/rough idle/won't start
  173. Possible Transmission Problem when shifting from park
  174. Water Pump - Snapped Bolt
  175. replacing camshaft bearings?
  176. 85 Deville 4.1L Oil problems.
  177. Won't Start After Driving
  178. need help concerning tune up
  179. should I replace the catalytic converter
  180. 1990 deville shifting problem
  181. TBI injectors
  182. Flat cam or bad lifter?
  183. Code E15???????
  184. flickering Service Soon and no codes...
  185. 4.1 Engine: Sensor Above #8 Spark Plug?
  186. how many mods do you all know about?
  187. high output alternator
  188. ISC RPM Out Of Range
  189. Non GM parts=sick Cadillac??
  190. 4.9 Deville Concours driving terrible again!
  191. Torque converter lock up solenoid, Where?
  192. Engine Swap
  193. 85 Eldo HT 4100 ISC/TPS
  194. 4.5 spark plugs
  195. 4100 engine temp??
  196. Weird 4.9l issues
  197. Finally Solved 4.1 Hesitation: Coil & Plug Wires
  198. Need help with 85 Eldo HT4100 Tuneup
  199. 91 Fleetwood injector impedence?
  200. How do I access the internal codes and what are the normal parameters for a '92 4.9?
  201. SERVICE SOON telltale light!!
  202. Cadillac 4.5L PFI and 4.9L PFI IAT?
  203. my 4100--what would you do
  204. Another BIG 4.x Engine Tip--Especially for 4.1 Owners
  205. what is that god awful smell
  206. '92 Deville 4.9 runs great at startup, runs like crap when hot
  207. e44 o2 error
  208. 4.1 Sputters and pops
  209. Tips on swapping HT4100 for 500
  210. Coolant Temp Light = Sensor?
  211. Need Tps Help
  212. 4.9l Starter Connection Problem
  213. 91 Deville 4.9l No Start Issue
  214. 4.9 stalling problem,and allante question
  215. Conflicting torque information
  216. Replaced Water Pump on 89 4.5 Still leaking
  217. 4100 seville engine swap help needed
  218. 4.1 to 4.9.... RWD?
  219. Blower motor not operating
  220. Any great 4.9 mods?
  221. Remanufactured HT4100 - 10K and now oil in radiator/leak
  222. HT4100 Running BAD when warm.
  223. EGR stack tubes?????
  224. HT4100 Backfires
  225. Checked your A.I.R. system filter lately?
  226. 1990 Deville PRNDL problem
  227. 1990 Deville running poorly.
  228. Thanks for the muffler info
  229. Fuel/exhaust smell seems too strong...dangerous?
  230. 4.9ltr Northstar performance?
  231. anyone know how to remove the crankshaft pully 1990 deville 4.5
  232. 1994 Deville Running Rough
  233. What does this code mean?
  234. Fuse Popping on AC Clutch
  235. 93 Seville 4.9 rough idle, slow response, P041 code
  236. 1985 Eldorado Engine Died! help!
  237. A 4.X Water Pump Story - Not for the Faint of Heart
  238. service vehicle soon is on my dash
  239. Intake gaskets leaking...common problem on the 4.9?
  240. newbie need help
  241. 4.9 Pinging
  242. Stumbling on the on ramps 4.9
  243. Advice/Help Please -- Goodyear Gave Up
  244. 4.9L idle issues... no power.. etc.. TPS?
  245. 4.9 Engine Oil Capacity - 92 Seville
  246. Eldorado Driveability
  247. New member planning mods to 90 STS
  248. 4.5L TBI whistling
  249. 4.9L 1991 Seville driving me crazy - won't start
  250. Fuel Data Center Answers