: HT4100 4.1, 4.5, 4.9



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  1. 1991 Cadillac Deville Runs Rough Weak Spark HELP
  2. Thermostatic Air Cleaner (THERMAC) location?
  3. Set timing mode problem!!!!! Please help!
  4. possible to fix myself?
  5. Best strut/axle solution for a '90 DeVille?
  6. 4.1 engine knock
  7. 1995 Deville 4.9 lower cooling hose question
  8. HT4100 Noise Just Started Today
  9. 1989 Seville fan comes cycles on and off when ignition is off
  10. 2000 Seville misfire. new to cadillac
  11. 1995 4.9 Misfiring at WOT
  12. Thermac?
  13. How long will a 4.5 DeVille last?
  14. Intermittent starting.
  15. 92 Deville 4.9 governed?
  16. ISC trouble! Help!
  17. need some help with my new pita
  18. EGR problem or ????
  19. Where is the Cruise control's fuse
  20. 95 devile ignition coil install help!!!
  21. would this work as a replacement for the 4.9L transmission fluid cooler?
  22. 1990 fleetwood code troubles please help!!
  23. What's the difference between ignition modules?
  24. Very strange engine problem 4.9L =HELP=
  25. 92 Deville 4.9 miss at idle
  26. 92 Deville blown headgasket or intake manifold?
  27. 1995 devile "service engine soon" light comes out , need help
  28. 91 Sedan DeVille Stall
  29. 1985 DeVille allternator wire (brown)
  30. 88 DeVille ELC not functioning
  31. 1988 DeVille Motor Mount Help
  32. heater hoses, any tips how to get these out?
  33. strut/axle/transmisiion problem
  34. Power Steering Woes
  35. flushing radiator fluid
  36. Break Release?
  37. '83 Eldorado with HT4100 V8, Rebuild or Replace?
  38. 89 coup deville coolant leak
  39. removeing crankshaft pulley bolt
  40. Back to my coolant flow problems
  41. help needed "no charge" light 83 eldorado 4.1
  42. Quick, Simple Question.
  43. 84 coupeD 4.1
  44. Engine Compartment Diagram Needed
  45. Re-install distributor
  46. Where to get a water pump pulley
  47. Don't deal with Remanufactured.com
  48. 1982 Cadillac Fleetwood. Code 52 PCM Reset. Dead Alternator. And my friends screw up.
  49. Vacuum on 4.5 Seville
  50. Alternator Bracket for Eldorado '85
  51. Different 4.1s?
  52. 91 Sedan Deville 4.9L CAR WON'T START
  53. 1992 Cadillac DeVille FOR SALE!!!!
  54. Fuel Injector 4.5
  55. 91 seville suspension dryer
  56. Voltage discrepancies
  57. Best way to clean out dead gas residue in tank?
  58. 4.9 map sensor problem?
  59. '91 Fleetwood Coupe has demons under the hood
  60. Replaced Head Gasket
  61. Looking for online source for TVS Switch for 85 HT4100
  62. I plan to make more of an appearance here...
  63. 93 4.9 motor
  64. intake manifold insides
  65. ISC pricing?
  66. coolant leak (pics)
  67. 91 seville heater control valve?
  68. 4.1 swap
  69. replacement valve covers
  70. 1992 DeVille Tune Up
  71. surging, only when warm
  72. 91 seville 4.9l owners manual
  73. Won't start. E12 .
  74. 4.9 wont stay running/wont start
  75. Anybody have a 91 seville 4.9l
  76. 1990 deville won't stay running
  77. 4.9L Spark Knock
  78. seperating engine and transmission
  79. 4.1 to Olds 403 swap
  80. 1994 cadillac sedan deville 4.9l please help!!
  81. ISC plunger question
  82. weird noise then belt pops off
  83. 91 seville 4.9 wheels?
  84. Service soon - refer to owners manual
  85. 91 seville trunk pull-down motor
  86. My engine build up
  87. PO39 and IO39 codes
  88. Car will not start-Distributor
  89. wats the MAP sensor
  90. high side temperature sensor circuit
  91. wats history after a code mean and how do i refesh list
  92. 92 deville wont start
  93. unbolting torque converter from flexplate
  94. Cracked head or head gasket
  95. 1983 4.1 Vs. 1985 4.1
  96. Another Anti Freeze question
  97. New problem
  98. Mixed up spark plug wire chaos!!!!!
  99. 91 seville 4.9 fan problems
  100. 94 Deville 4.9L
  101. 94 Cadillac SLS Idle Probelms
  102. Where to purchase a new ISC motor?
  103. Relay
  104. Question
  105. Head Bolt Torque Specifications?
  106. gasket question
  107. How hard it is to remove intake manifold???
  108. Diagram
  109. Real problem
  110. Extra HP & Torque
  111. How to adjust ISC
  112. replaced waterpump
  113. "Sail on" after cleaning throttle body
  114. Exhaust Gas in Radiator
  115. 2003 dhs trouble code p0300
  116. Cadillac trouble
  117. Cadillac trouble
  118. 1994 Deville leaking coolant
  119. 83 4.1 misfiring bad when running cold at constant speed
  120. Engine (4.1) won't start, stumbling when starting
  121. Dipstick doesn't match crankcase oil level
  122. The end is near? The end is here?
  123. Changing the FDR: What do I need?
  124. loss of hp?
  125. 93 eldo 4.9 overheating
  126. 93 exhaust question
  127. Prolly a dumb question:
  128. New Distributor Help
  129. water drowning out 84 caddy
  130. is it my spark plugs?
  131. Finally....Start-Up
  132. New problem: racing after cold startups now
  133. Common 4.1L Problems
  134. 91 deville surging idle
  135. '85 Fleetwood FWD 140K+ Miles! Hose questions
  136. Still got a miss at times
  137. Distributor won't drop.....
  138. '94 Sedan Deville, Parting out...Complete car
  139. 4.5 mess
  140. 4.9 intake gaskets
  141. Vacuum tube replacement
  142. Changing belts on 84 deville
  143. Coolant leak from WP cover
  144. Distributor Compatiblity 4.9 into a 4.5?
  145. Heater Core Removal 83 Eldorado
  146. 91 deville needs head gasket
  147. Sluggish acceleration
  148. 93 Eldorado clunking under load
  149. 4.1 just cuts out then comes back
  150. Oil pan gasket: Is it worth it?
  151. 4x engine as boat power?
  152. Cat converter exhaust flange
  153. Cooling system sealant
  154. 1983 4.1, 6 mpg in town driving ????
  155. 4.9 Headgasket ?
  156. E13, e44
  157. Help w/ Temp Fan Light on '85 Deville
  158. 15w-40 too heavy for a 61k mile 4.5?
  159. Operating temp: Whats the norm?
  160. The Last Stretch:Tranny Mods.
  161. timing marks
  162. Distributor Wiring Harness Compatability?
  163. Going from conventional to Synthetic - Good or bad?
  164. E46 code
  165. E98?
  166. 4.9 Lifespan?
  167. Return Line Pressure?
  168. 92 seville 4.9L engine problem
  169. alternator question
  170. Odd "Cold" Idle
  171. Rotten 4.1 do they just normally overheat ???
  172. Starter Change
  173. 83 Eldorado No power to HVAC controls or Mileage calculator
  174. Cam position sensor replacement
  175. A.L.D.L connector, setting timing
  176. The 93 SDV is dead!
  177. 1989 Seville Transmission shifts - Vac Modulator?
  178. thinking about 1994 Sedan deville
  179. Will there be a mess
  180. 1990 Eldorado runs ruff
  181. The 6 flexplate to crankshaft bolts
  182. Coolant
  183. Well, found one of my oil leaks...
  184. 92 Deville Shuts of suddenly
  185. Exhaust manifold gasket set
  186. Fuel Pump Cheat?
  187. 1995 Devile 4.9 Oil Leak
  188. Found my oil-leak
  189. Check this guy out: 91 Seville with 'questionable' mods
  190. Hose substution
  191. Thermostat
  192. Which of these?
  193. New Performance 4.9 Injector Mod. and Adjustable Fuel Pressure Regulator
  194. 1994 Cadillac Deville High Idle
  195. 91 deville, dead miss
  196. heater controls 92 eldo.
  197. How many tablets or bars leak?
  198. Distributor Help
  199. Proper Spark Plug Gap for 4.5
  200. 1990 Deville 4.5 help
  201. Yes, I Did It
  202. Harmonic Balance
  203. ECM Swap! PASSkey Question...
  204. Accel Performance Ignition Module: Real or B/S?
  205. 4100 engine temperature
  206. '90 4.5 No Cam Sensor Reference Signal Journey Through Hell!
  207. Ongoing Issues, running rough poor idle
  208. Trans cooler flush
  209. screw the whole thing - i hate the 4100... swap ideas?
  210. oil sender location - 4.1
  211. code po23??? Any thoughts
  212. 4.9 exhaust info
  213. Throttle valve cable '85
  214. oil pressure light came on - towed home
  215. clackin noise 4.9 deville
  216. Oil-leak solved!
  217. WOW this is a 4.9
  218. PO48 Current/ EGR Fault
  219. Oil Pressure
  220. E98 code on 4.5
  221. ...the HG gremlin got me
  222. Help identify 4.9 engine noise (video included)
  223. Head Gasket 91 caddy
  224. Once again......no joy
  225. BCM Location?
  226. Oil-tube gasket & o-ring
  227. 84 cdv 4100
  228. Question on oil leak - 1989 Seville
  229. No Joy....
  230. RTV on Oil-Pan gasket
  231. Block number?
  232. One problem fixed another shows up. Starter
  233. 4.9 Software
  234. How do I bypass PASKEY
  235. Rough running, bad mileage, unstable idle
  236. Trouble Starting When Warm
  237. Clattering noise from engine front area
  238. What is this hose called???
  239. 83 Eldorado 4.1 auto OD Trans Model # Please
  240. 1986 deville 4.1L
  241. Sedan Deville 4.1 to 4.5 Disaster Swap “This time I got right” part 2
  242. 89 Seville ignition switch click - VATS?
  243. Which a/c compressor to buy for round 4...advice please
  244. Carnut, got it to work, Thanks !
  245. wont start when warm
  246. B336 code, 86 seville
  247. transmission parts and specks
  248. Transmission advice
  249. 4.5-4.9 less inclined for h.g. problems
  250. Transmission Cooler Lines