: HT4100 4.1, 4.5, 4.9



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  1. Replace head gaskets or not? HT4100
  2. What is involved in swapping a 93 Edo vin9 with a 95 viny (is it doable) ?????
  3. 1985 Eldorado running rough at sustained high speeds
  4. 1985 eldorado 4100 intake manifold gaskets install
  5. Need help! Having starting problems with my 84 Coupe DeVille
  6. Installing a Cadillac 4.9 in a 1985 Eldorado.
  7. 1985 4100 hard starting
  8. 92 deville alternator
  9. HT 4100 Camshaft break-in!
  10. 84 coupe deville 4.1 rwd
  11. 4.5 "main brg thump"
  12. HT 4100 Rocker arm support train
  13. Capped hose from vapor canister? 95 4.9 Deville
  14. swap 1987 4.1 to 4.5
  15. anyone need new pistons?
  16. Crap...sludge under oil filler cap...
  17. Timing Issue
  18. 1986 Cadillac Fleetwood 75 Ht4100 Running Very Rough
  19. First time Cadillac owner - bad 4.1 engine
  20. P048 code - detonation at load 95 deville 4.9
  21. Oil light coming on at idle...
  22. Idle Control
  23. Allante intake
  24. HT4100 82 Seville engine replacement options
  25. Need help trouble shooting my 92 deville. Alternator/MAP sensor/exhaust gas recirc.
  26. Service A/c Light 4.9 '93 Sedan...
  27. 84 Seville headgasket or?
  28. 4100 HT rocker arm bridge
  29. 88 4.5 has no power and wants to die.
  30. FPR and Injectors 4.9
  31. HT4100 Intake Gasket Question
  32. Coolant guage sensor location help
  33. gear selector fault
  34. At what temp should the radiator fan come on?
  35. 91' Deville, 78k miles, running/accelerating rough, Need some help! No codes
  36. Repairing a blower motor power module
  37. 1984 Eldorado code 15 won't start
  38. I have a code 27 on an 84 SDV
  39. No vacuum to EGR valve ... 4.9 engine
  40. EGR System photos 83 4.1
  41. Accessing Spark Plugs on HT4100 - 1984 Cadillac Coupe DeVille
  42. 1992 eldorado 4.9 no start.
  43. 4.1 liter HT-4100
  44. Headbolts
  45. compression test on 1990 4.5L ? constant misfire, idling, under load, coasting...
  46. Engine issues & out of ideas ! 1991 4.9
  47. 4.5L Burnt tire smell from engine
  48. Operarating temperatue 4.1 engine 1985 eldorado
  49. 4.5l Valve Cover Gasket Replacement
  50. Distributor gear problem
  51. time to upgrade the 4.1, seeking advise
  52. No heat!!!!!!
  53. Service Soon digital dash Out
  54. 4.9L Oil Consumption
  55. HT4100 Brake Loss
  56. Warming up a 4.9/ turn off in trafgic
  57. 1990 Eldorado running rough
  58. 91 Deville - 4.9 swaps
  59. Electronic Fan Module & Cooling Fan Fault 9
  60. '92 Coupe deVille (4.9) shudders, knocks and vibrates on acceleration.
  61. Dirt in coolant? w/pic 4.5L
  62. E046
  63. removing 4.9
  64. OBD confusion
  65. RPM vs. highway speed ?
  66. Seville 4.1L V8 Engine - to South Africa
  67. Extremely Erratic Idle Until Operating Temperature
  68. Identifying distributor
  69. Rough Idle w/ Brake Booster Loss
  70. strong gas smell after motor turned off and exiting the vehical...no codes...95 devil
  71. 95 deville shocks all four corner???
  72. Intermittent stalling
  73. 1990 eldorado over heating and coolant boiling
  74. Why and what is it making that noise? (Video included)
  75. HT 4100 turns but will not start unless i spray starting fluid in the Carborator.
  76. 1992 Cadillac Seville
  77. 1985 Eldorado Roadster (4100)
  78. 4.9 Cable Wrapping Questions
  79. Seville 1990 code ED32
  80. 4.9 flooding when shut off
  81. 1984 Fleetwood Broughm d'elegence engine bogs down when hot
  82. Newbie looking for ground(s)
  83. Digital Dash 86 deville
  84. 1990 DeVille, 4.5l engine issues
  85. radiator fun
  86. 1987 DeVille Conv. 4.1 ICM still sets idle to high
  87. tranny swap 1992 sedan deville
  88. Can I get a timing cover for a '93 4.9L?
  89. Waterpmp AGAIN!
  90. 1995 Deville - 4.9 head gasket
  91. 4,1 L Eldorado '83 v/s 4,1 L cope dVille '85
  92. Need cadillac mechanic
  93. Late '85 HT 4100 white smoke from exhaust. Are there specific gasket tests?
  94. Is it worth the $?
  95. 92 seville timing cover torque specs
  96. 88 fleetwood engine randomly dies
  97. Check Engine Light?
  98. 1983 Cadillac Seville HT-4100 Vacuum Leak?
  99. '91 4.9 installed in a '85 Seville-can it be done and any thoughts
  100. 95 cadillac deville 4.9,no heat problem(nothing comes out of the main vents)
  101. 1995 Deville 4.9 randomly dies...
  102. HT 4100 oil pan capacity question
  103. 82 4100 eldorado.shutting off..
  104. 1990 Deville 141k runs slightly rough, high idle, maintains speed on highway by itsel
  105. Random overheating
  106. 1982 eldorado with 4100.''oil pump question..''
  107. 1982 eldorado oil pressure sending unit wires
  108. Re-manufactured HT4100 engine, oil is leaking at exhaust manifold by cylinder 6.
  109. hello gentlemen
  110. hello all
  111. 82 Eldo Digital Dash likes to dance
  112. 88 deville bubbling
  113. 1984 eldorado biarritz
  114. 1989 4.5L overboring
  115. Super high idle - 1992 Fleetwood
  116. 82 Eldo Updating Sensors and Wiring
  117. 1990 Eldorado displays wrong diagnostic parameters in CCDIC
  118. Complete bog down on acceleration when warm, wants to die.
  119. 1989 Deville F32/Running issues..Please Help
  120. what other factor could cause soot?
  121. in over my head...
  122. 4100 soot
  123. 83 pulsing gas pedal and codes 27 52 71..
  124. 83 Seville HT 4100 throttle?
  125. Turbo or super for a 1989 fleetwood
  126. Valve Cover Powdercoating
  127. 93 DeVille 4.9 Questions
  128. 1988 Deville 4.5L oil problems in Russia
  129. 95 deville 4.9 cooling fan & ac fan dont work
  130. 4100 HT Idle speed setting
  131. An update on my custom intake setup...
  132. 4100 Service Now / Codes
  133. Valve cover color
  134. 4.9 Idle Adjustment on '93 DeVille ?
  135. Poor mpg
  136. help with 85 eldorado alternator wiring
  137. 4.9L Intake manifold gasket install. Any tips?
  138. Check engine help!?!?
  139. Timing and error code 26
  140. 4100 still running better to rebuild or replace
  141. 4t60e stock converter stall speed
  142. Is my head gasket blown 94 cadillac sedan deville????
  143. Is my head gasket blown 94 cadillac sedan deville????
  144. cables
  145. Codes 4.9
  146. 4.5L ACDelco Spark Plug Question
  147. 4.9 low rpm/light throttle stumbling/bucking
  148. 4.9L 91 Seville power loss... at a loss..
  149. 1987 Deville 4.1 to 4.9 Conversion
  150. 97 Seville cooling
  151. Vacuum connection for heating?
  152. 1994 Deville 4.9 Engine Stalling
  153. Oil pressure specs for 4.1 at idle
  154. Oil pressure specs
  155. 91 Deville engine skip
  156. 4t60e chain and sprocket question
  157. 1st and 2nd design oil pressure switch?
  158. 1983 sed Deville 4100 0ut 1999-2002 Chevy 5.3 in
  159. 4100HT shuts down in sharp left corners
  160. What are my engine replacement options - Current engine is a transverse HT4100
  161. Vid: Cadillacs 1982 HT4100, the Development and Manufacturing
  162. JUST BOUGHT 1995 DEVILLE. Stalling and MAP Code issue?? and Possible related problem
  163. 4.9L coolant issues
  164. Upgrading and restoring a 4.9
  165. Brown sludge?
  166. oil pressure light 4.9 liter
  167. pvc valve housing possible vacuum leak?
  168. ACDELCO best water pump?
  169. 84 CDV Code 37 and Code 53 (need help)
  170. water pump tool?
  171. 4.5 hesitation, stumble, poor mpg; smog pump bypassed
  172. Replacing Air pump fan belt Problems
  173. I need a pic if anybody's got one
  174. 84 CDV need help on firing order and distributor wiring
  175. 4100 stalling after intake gasket repair
  176. 4.9 Injectors
  177. 1983 ht4100 enginge lower end knocking
  178. Ht4100 :(
  179. Can soneone give me a part number?
  180. 4.5 belt tensioner; is bearing replaceable?
  181. 4.9 litre tune up 94 deville
  182. Starting issue -- 91 Eldorado
  183. 4.9 Info Needed
  184. Oh Sh*%! I lost my head.
  185. Remove oil pump on cadillac eldorado 1985 ?
  186. 1985 eldorado biarritz won't start
  187. 4.9 pulled head bolt threads
  188. Hesitation on an 83 cadillac fleetwood brougham with HT4100 motor
  189. 95 sedan shuts down while driving
  190. 93 SDV 4.9 spark plug replacement post mortem (can't edit other thread)
  191. Driving along and suddenly, DEAD!
  192. Starter Gear Clearance
  193. Replacing original plugs/wires 93 SDV........wish me luck!
  194. 4.9 - intake
  195. Idle Problems After Mechanic
  196. Lurching '91 Deville
  197. Can FWD HT 4100 eng and transmission be installed together?
  198. '82 Fleetwood D'elegance coupe problem :(
  199. replacing water pump on my old '84 DeVille 4.1 engine
  200. What are the symptoms of CVJs failing?
  201. distributor question
  202. Car not starting
  203. Problem with 1990 Seville 4.5
  204. change spark plugs, 1989 seville 4.5
  205. Oil Leaking from "Everywhere"
  206. 4.1 to 4.1 swap, how hard can it really be???
  207. School of hard knocks
  208. 90 deville 4.5 stalling problems
  209. 1983 Eldorado engine running problem!
  210. Carburetor on V8 4100 HT Eldorado 1985 ?
  211. need some help with my 1994 Deville 4.9L v8
  212. Did I miss anything?
  213. hard starting 1997 STS
  214. 1991 Cadillac Biarittz - Engine problem.
  215. First Caddy Questions
  216. The best engine to put in my Eldo Cadillac?
  217. Stumped!
  218. 1990 cadillac deville
  219. Please Help - error code 19 on 84 Deville ht4100
  220. Fuel Pump Relay - 84 Deville HT4100
  221. Where is the oil pressure switch located - 84 Deville HT4100
  222. Remanufactured 4.1 available
  223. 4.9 Belt Tensioner Question
  224. Rough Running 4.9 - Please Help !
  225. Removing the AIR pump, HT4100
  226. 4T60-E Transaxle, feels like park paw spring is worn out.
  227. Seville Swap: from 83 HT4100 to 81 368
  228. 86 seville 4.1 low engine power-issue
  229. leftover 4.x parts
  230. 4.5 RWD engines for sale?? would this work??
  231. '85 Seville HT 4100 MAP location & mystery connectors ?
  232. awesome 440T4->4T65E conversion
  233. Difficult to start engine in Eldorado 1983
  234. Rough Idle on low mileage 91 Eldorado
  235. "system problem"
  236. Purpose for detent switch and kickdown?
  237. Basics for operating ECM on 84 Deville HT4100??
  238. 4.5 Overheating. Need help
  239. PD08 and Spark Timing
  240. Where is the a/c low pressure valve on a 1990 Seville?
  241. 1985 DeVille Whats That, (Fuel System Canister Valve?)
  242. 4.5 will not go into timing mode, desperately seeking advice
  243. Torque Specs
  244. Looking to replace camshaft to fix lack of power & hesitation - ht4100
  245. HT 4100 engine problem
  246. 84 cadillac eldorado ht4100 rough idle at acceleration
  247. ISC Adjustment & the mysterious green connector
  248. Thinking of picking up an '83 Fleetwood HT4100
  249. Advice, please: 4.9 Cruise Control Cable Stuck
  250. 1995 Sedan Deville HEAD Gasket