: HT4100 4.1, 4.5, 4.9



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  1. HT 4100 Camshaft break-in!
  2. 84 coupe deville 4.1 rwd
  3. 4.5 "main brg thump"
  4. HT 4100 Rocker arm support train
  5. Capped hose from vapor canister? 95 4.9 Deville
  6. swap 1987 4.1 to 4.5
  7. anyone need new pistons?
  8. Crap...sludge under oil filler cap...
  9. Timing Issue
  10. 1986 Cadillac Fleetwood 75 Ht4100 Running Very Rough
  11. First time Cadillac owner - bad 4.1 engine
  12. P048 code - detonation at load 95 deville 4.9
  13. Oil light coming on at idle...
  14. Idle Control
  15. Allante intake
  16. HT4100 82 Seville engine replacement options
  17. Need help trouble shooting my 92 deville. Alternator/MAP sensor/exhaust gas recirc.
  18. Service A/c Light 4.9 '93 Sedan...
  19. 84 Seville headgasket or?
  20. 4100 HT rocker arm bridge
  21. 88 4.5 has no power and wants to die.
  22. FPR and Injectors 4.9
  23. HT4100 Intake Gasket Question
  24. Coolant guage sensor location help
  25. gear selector fault
  26. At what temp should the radiator fan come on?
  27. 91' Deville, 78k miles, running/accelerating rough, Need some help! No codes
  28. Repairing a blower motor power module
  29. 1984 Eldorado code 15 won't start
  30. I have a code 27 on an 84 SDV
  31. No vacuum to EGR valve ... 4.9 engine
  32. EGR System photos 83 4.1
  33. Accessing Spark Plugs on HT4100 - 1984 Cadillac Coupe DeVille
  34. 1992 eldorado 4.9 no start.
  35. 4.1 liter HT-4100
  36. Headbolts
  37. compression test on 1990 4.5L ? constant misfire, idling, under load, coasting...
  38. Engine issues & out of ideas ! 1991 4.9
  39. 4.5L Burnt tire smell from engine
  40. Operarating temperatue 4.1 engine 1985 eldorado
  41. 4.5l Valve Cover Gasket Replacement
  42. Distributor gear problem
  43. time to upgrade the 4.1, seeking advise
  44. No heat!!!!!!
  45. Service Soon digital dash Out
  46. 4.9L Oil Consumption
  47. HT4100 Brake Loss
  48. Warming up a 4.9/ turn off in trafgic
  49. 1990 Eldorado running rough
  50. 91 Deville - 4.9 swaps
  51. Electronic Fan Module & Cooling Fan Fault 9
  52. '92 Coupe deVille (4.9) shudders, knocks and vibrates on acceleration.
  53. Dirt in coolant? w/pic 4.5L
  54. E046
  55. removing 4.9
  56. OBD confusion
  57. RPM vs. highway speed ?
  58. Seville 4.1L V8 Engine - to South Africa
  59. Extremely Erratic Idle Until Operating Temperature
  60. Identifying distributor
  61. Rough Idle w/ Brake Booster Loss
  62. strong gas smell after motor turned off and exiting the vehical...no codes...95 devil
  63. 95 deville shocks all four corner???
  64. Intermittent stalling
  65. 1990 eldorado over heating and coolant boiling
  66. Why and what is it making that noise? (Video included)
  67. HT 4100 turns but will not start unless i spray starting fluid in the Carborator.
  68. 1992 Cadillac Seville
  69. 1985 Eldorado Roadster (4100)
  70. 4.9 Cable Wrapping Questions
  71. Seville 1990 code ED32
  72. 4.9 flooding when shut off
  73. 1984 Fleetwood Broughm d'elegence engine bogs down when hot
  74. Newbie looking for ground(s)
  75. Digital Dash 86 deville
  76. 1990 DeVille, 4.5l engine issues
  77. radiator fun
  78. 1987 DeVille Conv. 4.1 ICM still sets idle to high
  79. tranny swap 1992 sedan deville
  80. Can I get a timing cover for a '93 4.9L?
  81. Waterpmp AGAIN!
  82. 1995 Deville - 4.9 head gasket
  83. 4,1 L Eldorado '83 v/s 4,1 L cope dVille '85
  84. Need cadillac mechanic
  85. Late '85 HT 4100 white smoke from exhaust. Are there specific gasket tests?
  86. Is it worth the $?
  87. 92 seville timing cover torque specs
  88. 88 fleetwood engine randomly dies
  89. Check Engine Light?
  90. 1983 Cadillac Seville HT-4100 Vacuum Leak?
  91. '91 4.9 installed in a '85 Seville-can it be done and any thoughts
  92. 95 cadillac deville 4.9,no heat problem(nothing comes out of the main vents)
  93. 1995 Deville 4.9 randomly dies...
  94. HT 4100 oil pan capacity question
  95. 82 4100 eldorado.shutting off..
  96. 1990 Deville 141k runs slightly rough, high idle, maintains speed on highway by itsel
  97. Random overheating
  98. 1982 eldorado with 4100.''oil pump question..''
  99. 1982 eldorado oil pressure sending unit wires
  100. Re-manufactured HT4100 engine, oil is leaking at exhaust manifold by cylinder 6.
  101. hello gentlemen
  102. hello all
  103. 82 Eldo Digital Dash likes to dance
  104. 88 deville bubbling
  105. 1984 eldorado biarritz
  106. 1989 4.5L overboring
  107. Super high idle - 1992 Fleetwood
  108. 82 Eldo Updating Sensors and Wiring
  109. 1990 Eldorado displays wrong diagnostic parameters in CCDIC
  110. Complete bog down on acceleration when warm, wants to die.
  111. 1989 Deville F32/Running issues..Please Help
  112. what other factor could cause soot?
  113. in over my head...
  114. 4100 soot
  115. 83 pulsing gas pedal and codes 27 52 71..
  116. 83 Seville HT 4100 throttle?
  117. Turbo or super for a 1989 fleetwood
  118. Valve Cover Powdercoating
  119. 93 DeVille 4.9 Questions
  120. 1988 Deville 4.5L oil problems in Russia
  121. 95 deville 4.9 cooling fan & ac fan dont work
  122. 4100 HT Idle speed setting
  123. An update on my custom intake setup...
  124. 4100 Service Now / Codes
  125. Valve cover color
  126. 4.9 Idle Adjustment on '93 DeVille ?
  127. Poor mpg
  128. help with 85 eldorado alternator wiring
  129. 4.9L Intake manifold gasket install. Any tips?
  130. Check engine help!?!?
  131. Timing and error code 26
  132. 4100 still running better to rebuild or replace
  133. 4t60e stock converter stall speed
  134. Is my head gasket blown 94 cadillac sedan deville????
  135. Is my head gasket blown 94 cadillac sedan deville????
  136. cables
  137. Codes 4.9
  138. 4.5L ACDelco Spark Plug Question
  139. 4.9 low rpm/light throttle stumbling/bucking
  140. 4.9L 91 Seville power loss... at a loss..
  141. 1987 Deville 4.1 to 4.9 Conversion
  142. 97 Seville cooling
  143. Vacuum connection for heating?
  144. 1994 Deville 4.9 Engine Stalling
  145. Oil pressure specs for 4.1 at idle
  146. Oil pressure specs
  147. 91 Deville engine skip
  148. 4t60e chain and sprocket question
  149. 1st and 2nd design oil pressure switch?
  150. 1983 sed Deville 4100 0ut 1999-2002 Chevy 5.3 in
  151. 4100HT shuts down in sharp left corners
  152. What are my engine replacement options - Current engine is a transverse HT4100
  153. Vid: Cadillacs 1982 HT4100, the Development and Manufacturing
  154. JUST BOUGHT 1995 DEVILLE. Stalling and MAP Code issue?? and Possible related problem
  155. 4.9L coolant issues
  156. Upgrading and restoring a 4.9
  157. Brown sludge?
  158. oil pressure light 4.9 liter
  159. pvc valve housing possible vacuum leak?
  160. ACDELCO best water pump?
  161. 84 CDV Code 37 and Code 53 (need help)
  162. water pump tool?
  163. 4.5 hesitation, stumble, poor mpg; smog pump bypassed
  164. Replacing Air pump fan belt Problems
  165. I need a pic if anybody's got one
  166. 84 CDV need help on firing order and distributor wiring
  167. 4100 stalling after intake gasket repair
  168. 4.9 Injectors
  169. 1983 ht4100 enginge lower end knocking
  170. Ht4100 :(
  171. Can soneone give me a part number?
  172. 4.5 belt tensioner; is bearing replaceable?
  173. 4.9 litre tune up 94 deville
  174. Starting issue -- 91 Eldorado
  175. 4.9 Info Needed
  176. Oh Sh*%! I lost my head.
  177. Remove oil pump on cadillac eldorado 1985 ?
  178. 1985 eldorado biarritz won't start
  179. 4.9 pulled head bolt threads
  180. Hesitation on an 83 cadillac fleetwood brougham with HT4100 motor
  181. 95 sedan shuts down while driving
  182. 93 SDV 4.9 spark plug replacement post mortem (can't edit other thread)
  183. Driving along and suddenly, DEAD!
  184. Starter Gear Clearance
  185. Replacing original plugs/wires 93 SDV........wish me luck!
  186. 4.9 - intake
  187. Idle Problems After Mechanic
  188. Lurching '91 Deville
  189. Can FWD HT 4100 eng and transmission be installed together?
  190. '82 Fleetwood D'elegance coupe problem :(
  191. replacing water pump on my old '84 DeVille 4.1 engine
  192. What are the symptoms of CVJ’s failing?
  193. distributor question
  194. Car not starting
  195. Problem with 1990 Seville 4.5
  196. change spark plugs, 1989 seville 4.5
  197. Oil Leaking from "Everywhere"
  198. 4.1 to 4.1 swap, how hard can it really be???
  199. School of hard knocks
  200. 90 deville 4.5 stalling problems
  201. 1983 Eldorado engine running problem!
  202. Carburetor on V8 4100 HT Eldorado 1985 ?
  203. need some help with my 1994 Deville 4.9L v8
  204. Did I miss anything?
  205. hard starting 1997 STS
  206. 1991 Cadillac Biarittz - Engine problem.
  207. First Caddy Questions
  208. The best engine to put in my Eldo Cadillac?
  209. Stumped!
  210. 1990 cadillac deville
  211. Please Help - error code 19 on 84 Deville ht4100
  212. Fuel Pump Relay - 84 Deville HT4100
  213. Where is the oil pressure switch located - 84 Deville HT4100
  214. Remanufactured 4.1 available
  215. 4.9 Belt Tensioner Question
  216. Rough Running 4.9 - Please Help !
  217. Removing the AIR pump, HT4100
  218. 4T60-E Transaxle, feels like park paw spring is worn out.
  219. Seville Swap: from 83 HT4100 to 81 368
  220. 86 seville 4.1 low engine power-issue
  221. leftover 4.x parts
  222. 4.5 RWD engines for sale?? would this work??
  223. '85 Seville HT 4100 MAP location & mystery connectors ?
  224. awesome 440T4->4T65E conversion
  225. Difficult to start engine in Eldorado 1983
  226. Rough Idle on low mileage 91 Eldorado
  227. "system problem"
  228. Purpose for detent switch and kickdown?
  229. Basics for operating ECM on 84 Deville HT4100??
  230. 4.5 Overheating. Need help
  231. PD08 and Spark Timing
  232. Where is the a/c low pressure valve on a 1990 Seville?
  233. 1985 DeVille Whats That, (Fuel System Canister Valve?)
  234. 4.5 will not go into timing mode, desperately seeking advice
  235. Torque Specs
  236. Looking to replace camshaft to fix lack of power & hesitation - ht4100
  237. HT 4100 engine problem
  238. 84 cadillac eldorado ht4100 rough idle at acceleration
  239. ISC Adjustment & the mysterious green connector
  240. Thinking of picking up an '83 Fleetwood HT4100
  241. Advice, please: 4.9 Cruise Control Cable Stuck
  242. 1995 Sedan Deville HEAD Gasket
  243. 88 seville instrument panel
  244. Need Help with timing/tune-up on 84 Cadillac Deville HT4100
  245. Bad Misfire on Low Mile 4.9 (1991 Eldorado)
  246. thinking about getting mods on 4.5
  247. Vapor Canister Filter
  248. Oil for 4100
  249. Code E49 Air Injection System Fault
  250. 4.5 distributor removal