: HT4100 4.1, 4.5, 4.9



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  1. Air Filter Question
  2. Serevice engine soon
  3. 4.1/4100 Distributor Hold down- how to tighten???
  4. 4.9 litre plug wire access problem.
  5. Engine mount - Any unique replacements?
  6. 4.9 Squeaking at Idle
  7. The continuing saga of my tranny problems...please help!
  8. 86 Fleetwood engine swap
  9. What senses the RPM on HT4100 engines?
  10. Open Throttle Switch Signal E27
  11. 83 FWB Idle Problems
  12. Got a code do not know what or where to check
  13. weird SES and hard start problem
  14. Sputtering, loss of power when hot
  15. Your opinion of the 4.5L V8 in the 88 DeVille
  16. oil
  17. Tranny Slipping?
  18. part identification 4.9
  19. 1992 seville 4.9 fuel filter location
  20. Good old 83' Coupe Deville
  21. new cadillac seville owner coolant flush
  22. 1993 Deville power steering pump failure
  23. ECM software
  24. 130 mph in a 4.9!
  25. Frozen Pulley
  26. Ignition Module issue
  27. Removing EGR valve - 4100
  28. Bad alternator in 93 Deville, need help
  29. Restore Lubricants
  30. Bad Head Gasket 92 DeVille 4.9- Need opinion
  31. Throttle Position Sensor Misadjusted
  32. A.I.R. Pump 4.5l '89 Deville
  33. temp sensor
  34. Don't ask oil questions on this site.
  35. 1985 deville died
  36. where do i go from here
  37. Need Help On Two More Things
  38. serious help needed
  39. 1983 Caddy transmission
  40. Strange Timing Issues
  41. Mobil 1 10W30
  42. 1985 Deville with a 4100 and it will not crank
  43. 1985 Deville with a 4100 and it will not crank
  44. Code E48 diagnosis
  45. codes ???please help
  46. 4.5 Allante intake on 93 4.9 deville
  47. New Trouble Code
  48. 1989 Caddy Deville......
  49. Throttle Body Plate issue
  50. Code and Coolant Prob.
  51. Low oil pressure!
  52. Oil Cooler Lines Leaking
  53. 1989 Caddy Deville......help!!!
  54. Stallling at idle
  55. gas pedal
  56. 4.5 TBI rough idle
  57. 94 Deville has almost no power from start
  58. 84 eldo conv't - 70 weight oil - yes or no?
  59. E012,E053 Won't run
  60. 1990 Seville Timing chain?
  61. 4.9 groaning
  62. '84 Eldo Code 44
  63. HT-4500 Starting trouble
  64. Speedometer Sensor issue ?
  65. The Ultimate FWD Cadillac Engine Swap
  66. Sticky Gas Pedal...4.5L
  67. Underhood smoking... need help with a diagnosis
  68. Fixed EGR now MPG is lower
  69. engin and trany swap for an 85 coupe deville
  70. Favorite things about the 4.9?
  71. 86 EGR Valve
  72. 4.5 TBI smoking
  73. Fuel pump on 4.9 92 Deville
  74. Fleetwood/DeVille Speedometer
  75. 4.1 Knock?? Or Tap??
  76. 1990 deville 4.5 air pump noisy
  77. 4.5L TBI Grumbling
  78. HT4500 and 4900 series Performance
  79. 4.1L injector
  80. how to get more hp from a 4100
  81. Intermittent Lurch—91 DeVille 4.9
  82. MAP Problems
  83. Oil Level
  84. How to start when very cold (less than 0 F)
  85. Need Help Please
  86. Engine surges at slow speed
  87. Stop Engine, Low Oil Pressure
  88. 1988 Fleetwood 4.5 Distributor order
  89. 1985 Seville Power Steering Pulley bolt
  90. Installing oil pump in 4.9 engine.
  91. 1985 deville ht4100 jump start
  92. GM Top End Cleaner Has Been Discontinued
  93. Makes Me Happy!
  94. HT4100 Question
  95. HT 4100 knock, 83 Eldorado (I know, another thread on this)
  96. Makes me nervous!
  97. 4.9 E55 code. TPS?
  98. Thoughts on the 4.5
  99. power steering leakk
  100. The SEA FOAM experience thread.
  101. Oh just great, a collapsed lifter in #1 cylinder!!
  102. 94 4.9 bypass siezed A/C compressor
  103. 85 Deville Still Has Poor Performance
  104. Need exhaust manifolds 4.1 HT4100
  105. 93 Deville stalls after car warms up
  106. New Caddy Owner, Need Some Help
  107. Rattle Under Car
  108. What kind of ISC motor should i get?
  109. 84 eldorado fuse panel pictures?
  110. Crack in my Block
  111. 93 DeVille AC converter clutch bypass ???
  112. Cooling System - Water Pump Conditioner/Anti-Rust
  113. Stock Exhaust dimensions on 93 Devilles
  114. Campaign 95-C-72 (recall)
  115. fuel pressure????
  116. Just finished my 4.9 Water pump repair pics inside
  117. 4.9L Rear Oil Leak
  118. Quick question: Ignition Control Module
  119. Disaster
  120. EGR Valve
  121. 4.1 main bearing thump
  122. Tranny problems, E39!! Please help, dont want to rebuild...
  123. 95 Deville 4.9 need help
  124. OMG water pump problem!
  125. Bypass Catalytic Converter on 1993 Deville?
  126. Starter motor gone on 87 deville 4.1
  127. Need help 4.9 L Fuel Delivery problem
  128. 92 4.9 DeVille runs horrible, sets codes
  129. Roller Lifters On The 4.9?
  130. water pump change on 4.1ltr
  131. 93 deville
  132. 1993 Cadillac Seville: Please Help starting problem
  133. Bad coil?
  134. Rebuilding a tbi on 89 deville
  135. I Broke it
  136. 4.9 Surges After Hot Start
  137. Poor mileage and slighly high HC levels
  138. engine oil cooler lines
  139. Smoke out of exhaust
  140. Cleaned out my EGR tubes today, my E.4.8 code is gone!
  141. code help
  142. Low mileage 4.9 Idling Rough Engine Sputters and quits
  143. First time Caddy owner needs some advice please
  144. Trouble with diagnostics
  145. changing oil pump in 90 deville 4.5
  146. Help I dont want to get rid of my car BUT!
  147. Has anyone changed their catalytic converter?
  148. 4.9 Liter idle
  149. Removing hydraulic fittings
  150. How many miles on the 4.9? ?
  151. 88 Sedan Deville not liking the winter
  152. Coolant hose to blower motor
  153. Timing Question
  154. '84 Eldorado blown head gasket?
  155. Oil pan heater?
  156. 4.9 Deville 95 whining noise like supercharger..
  157. Location of the CAM Position Sensor on the 95 4.9L deville?
  158. YES, i did it!!! All went well!
  159. 92 Eldo 4.9 for sale
  160. 4.5 water pump
  161. 93 4.9 STS wont start
  162. DESPERATELY Need Help!!! 85 CDV
  163. Trying to find good price on Allante gear reduction to use on my 4.9
  164. How to clean out EGR valves and throttle body?
  165. time for engine replacement soon-- help!
  166. Heater
  167. Hard starting
  168. 4.5 differences
  169. E98 rectification
  170. 87 fleetwood new ignition problem
  171. 1985 deville 4.1 Injector fuse keeps blowing
  172. PCM override, PS10
  173. EGR solenoid, is it normal?
  174. Get a LARGER capacity, 3 row radiator?
  175. Smoky when at full throttle!
  176. What does the code F.8.5 mean?
  177. 87 fleetwood 4.1 three problems,advice please!
  178. Removed Distributor--Question Before I Restart
  179. Changed the oil pump, lifter still taps on occasion warmed up..
  180. 87 deville, E48, EGR system problem
  181. Additive for newly remaned 86 DeVille Trans??
  182. Is it possible for a 4.9 main bearing thump to get progressively worse?
  183. 1989 Sedandeville issues
  184. 15W-40 Oil .....
  185. Fuel
  186. 82 eldorado alternator bracket
  187. 85 Deville ISC Problem--Might Have the Answer
  188. Help me Please!!!
  189. Weird idea
  190. Engine miss
  191. Pulled a thread
  192. E12 - No Distributor Signal???
  193. computer interchange, '90 Seville?
  194. Where Can I get some chips......
  195. Oil leak source...?
  196. well, i did it but...
  197. HT4100 ECM/BCM Problem?!
  198. #$$%^%@#$% damn .....floods on hot restart
  199. can't flush out "rubber glue type" coolant additive... what to do?
  200. Transmission Shift cable
  201. HT4100 ISC Help
  202. 4t60-E going out
  203. Fuel Issues - Please Help!
  204. 4t60-E FDR and the computer
  205. Fixed my car! Need help on one more thing...
  206. What's wrong with my car? The mystery continues...
  207. When i go to replace the mains....
  208. 4t60-E Shudder?
  209. last year
  210. All 4.x engine service parts are discontinued?
  211. Does anybody have a spare 4.9?
  212. Knock, Knock, Knock, 4.9L
  213. Alright, i'm going in!! I need a few parts and info please.
  214. 90 4.5L Idle Learn Procedure?
  215. I have a slight problem,,, HT4100
  216. Fuel Pressure Test Fitting
  217. 1985 Seville code e15
  218. Cooling Fan Module--Where can I get one?
  219. Bars Leaks Head Gasket Repair
  220. Code E30 on 85 Deville and Vacuum Pumps
  221. Copper Gaskets?
  222. Battery/ALternator area cracking noise?
  223. Oil Analysis: Proof is in the results
  224. 1992 Eldo
  225. That Funky Emissions Tubing
  226. Hey Guys long time no chat, and long time not wanting to start either.
  227. The once a year survival kit for the 4.X series
  228. 4.9 runs rough black exhaust from tail pipe
  229. 1985 Seville harsh shifting tranny
  230. Odd brief buzzing noise from undercarriage
  231. i need a 4t60e guru; i am hating mine
  232. what is up with my car
  233. Early vs. Late 1985 FWD 4100
  234. Strange ISC
  235. 1994 cadillac deville engine knocks when warm
  236. 4.5 --> 4.9
  237. Getting ready for water pump removal
  238. 1988 Eldorado 4.5
  239. 1985 FWD HT4100 Running rough
  240. Question about spark plugs!
  241. TPS problem?
  242. 4100 Mpg
  243. 87 deville 4100 shift problems
  244. 1991 DeVille Speedometer/Transmission Trouble.
  245. Starter solenoid replacement
  246. 4.9 Injector Replacement Questions
  247. 92 STS error code A048 what does that mean?
  248. 1994 Deville 4.9 Idler pulleys
  249. Please Help!!! Rough running 4.9 , Help!!
  250. 1994 Deville 4.9 spark knock