: HT4100 4.1, 4.5, 4.9



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  1. Replacing Northstar 4.6 with a 4.9 engine
  2. engine runs very rough the first few seconds after i turn it on
  3. Changed Plugs/Wires - then I got three codes...
  4. Injectors solved the miss BUT fuel rail leaks bad
  5. My 1986 Coupe De Ville 4.1L startup
  6. Diesel Oil For 4.9?
  7. 4.9 mystery issue....
  8. Looking for a Great Mechanic in Los Angeles, CA.
  9. HT4100 4.1, need help finding this part!
  10. Need Help in OKLAHOMA CITY
  11. Engine coolant level sensor
  12. E91 Code
  13. Your experience with the HT 4100?
  14. Performance engine for Deville 1984
  15. Coupe DeVille 4.1 1984 Error codes 32,34,36,52
  16. 4.9 injector replacement questions
  17. Minimum Air Settings for 82 Cad 4.1 V8 HT4100
  18. Where can I get a reliable turnkey 4.5 liter cadillac motor?
  19. Surging Idle on 82 Cad Fleetwood
  20. 4.9 High NOx, Failed Smog, stumped and need help!
  21. 4.1 Loose disconnected wire 1982 Coupe DeVille
  22. 82 Coupe DeVille 4.1 Belt Replacement
  23. (HT4100 4.1) 82 Coupe DeVille loose wire coming from firewall....
  24. Cooling fan start 4.9
  25. 82 Deville Persistent Code E26 with Check engine Light on
  26. Torque, harmonic balancer 4,9
  27. 1993 4.9 O2 sensor locations ?
  28. 84 cadillac fleetwood brougham d elegance rough idle
  29. 1992 STS 4.9 poor throttle response?
  30. HT4100 SandRail Dune Buggy
  31. 4.1 power problem
  32. Dull clattering at idle
  33. HT4100 A/C bypass diagram
  34. 93 deville cooler lines
  35. 1984 eldorado cadillac, 4.1 .
  36. Oil Filter Adapter/ Distributor Removal
  37. 4100 distributor thrust washer
  38. 1986 Hearse 24 hours of LeMons Race car !
  39. ht 4100 questions
  40. 92 eldorado 4.9L
  41. Coolant supplement Tabs
  42. New ISC Motor Issue
  43. 93 Eldorado starter wiring
  44. 1992 4dr Deville
  45. mileage on your 4.9
  46. 11 !/2 miles per gallon ?
  47. 1985 Seville 4.1L Head Bolts
  48. Injectors
  49. 4.5 main bearings
  50. leaking/Cracked 88 4.5 Engine Block
  51. R4 compressor jump
  52. 1994 4.9L Eldorado - how many O2 sensors.
  53. A/c Cycles every 8-15 seconds-88 Eldorado
  54. ISC issue
  55. Mysterious missing issue
  56. tick tick ticking
  57. 4.1 Troubles on my 84 Deville
  58. Code E053 question
  59. oil leak in filter area - 85 eldo 4.1
  60. Fuel consumption and outside temp
  61. Changing lifters
  62. valve tap after changing oil - 85 eldo 4.1
  63. Head Bolts
  64. HT 4100 83' Deville Problems
  65. Looking to upgrade injectors ..91 4.9
  66. Instructions on changing the coolant in an HT-4100?
  67. Refresh HT4100 85 Seville
  68. Noise after changing Oil 4.1 CDV
  69. swapping 440-T4
  70. 4.1 Coupe Freshining Up with pics
  71. Coolant Pellets, Tabs.. are these them?
  72. 1985 Eldo transplant...
  73. School Me !
  74. 4.9 random stalls
  75. new here with some questions
  76. 4.9 cold start knock what is it??
  77. Motor mount change 1985 FWD Seville
  78. 1992 sts 4.9
  79. 92 Allante 4.5 returning E041 Cam sensor
  80. 1985 cadillac eldorado 4.1 engine
  81. Tranny shifting points
  82. 4.1 PCV breather hose
  83. ROTELLA T 15W-40 tell me i did the right thing
  84. fuel meter body gasket 85 eldo 4.11
  85. anyone in need of engine parts for 4.1/ 4.5/ 4.9 L engine ?? I have a lot
  86. Map Sensor
  87. Compatible oil pan for 92 Deville
  88. 440-T4 > 4T6X-E conversion
  89. question about diagnostics mode - 85 eldo
  90. timing gear. 85 eldo
  91. oil pump qustions - 85 ht4100 eldo
  92. full tune - up / now running a bit wierd 85 eldo
  93. accel supercoil on 85 4.1
  94. quick question 85 4.1
  95. EGR SOLENOID 85 Seville
  96. Please don't tell me my injectors are failing...
  97. EGR Valve. 'P' or 'N' type ?
  98. 85 eldo upcoming purchase questions
  99. 4.9 engine oil pump needed
  100. Timing advance car nut
  101. 1984 Seville 4.1 - need head bolt set
  102. 4.9 Hall effects switch change... turns into new distributor
  103. Can not get 1987 4.1 to run correct or is it even possible without the computer
  104. Mid 80's edorado... Do or dont???
  105. Timing marks for 4.1 1984 engine
  106. 4.1 Oscillating/Hunting idle , any suggestions besides...
  107. Ht4100 Supplement Pellets nowadays ?
  108. 85 Eldorado 4.1
  109. 1991 Seville 4.9 - Idles fine, dies immediately after giving it gas
  110. What year and model is this engine from?
  111. 1985 Eldorado Touring coupe, NO FUEL SITUATION
  112. 82 Seville not idiling or running correctly
  113. 1985 eldorado touring coupe distributor/top dead center help.
  114. 1995 Deville - FPR replacement tips ?
  115. HT4100 pre-purchase help......
  116. 1985 ELDORADO HT4100 ,ANY IDEA Where this connector goes?
  117. 1984 Cadillac fleetwood brougham.
  118. 1986 Eldorado 4.1 v8 (fwd) Water pump Removal
  119. HT4100 to 350 swap. Need sound advice. Please!!!!
  120. Vacuum hose sizes/locations for a '94 deville 4.9?
  121. pinging problems 1994 Deville 4.9
  122. Replace head gaskets or not? HT4100
  123. 1985 Eldorado running rough at sustained high speeds
  124. 1985 eldorado 4100 intake manifold gaskets install
  125. Need help! Having starting problems with my 84 Coupe DeVille
  126. Installing a Cadillac 4.9 in a 1985 Eldorado.
  127. 1985 4100 hard starting
  128. 92 deville alternator
  129. HT 4100 Camshaft break-in!
  130. 84 coupe deville 4.1 rwd
  131. 4.5 "main brg thump"
  132. HT 4100 Rocker arm support train
  133. Capped hose from vapor canister? 95 4.9 Deville
  134. swap 1987 4.1 to 4.5
  135. anyone need new pistons?
  136. Crap...sludge under oil filler cap...
  137. Timing Issue
  138. 1986 Cadillac Fleetwood 75 Ht4100 Running Very Rough
  139. First time Cadillac owner - bad 4.1 engine
  140. P048 code - detonation at load 95 deville 4.9
  141. Oil light coming on at idle...
  142. Idle Control
  143. Allante intake
  144. HT4100 82 Seville engine replacement options
  145. Need help trouble shooting my 92 deville. Alternator/MAP sensor/exhaust gas recirc.
  146. Service A/c Light 4.9 '93 Sedan...
  147. 84 Seville headgasket or?
  148. 4100 HT rocker arm bridge
  149. 88 4.5 has no power and wants to die.
  150. FPR and Injectors 4.9
  151. HT4100 Intake Gasket Question
  152. Coolant guage sensor location help
  153. gear selector fault
  154. At what temp should the radiator fan come on?
  155. 91' Deville, 78k miles, running/accelerating rough, Need some help! No codes
  156. Repairing a blower motor power module
  157. 1984 Eldorado code 15 won't start
  158. I have a code 27 on an 84 SDV
  159. No vacuum to EGR valve ... 4.9 engine
  160. EGR System photos 83 4.1
  161. Accessing Spark Plugs on HT4100 - 1984 Cadillac Coupe DeVille
  162. 1992 eldorado 4.9 no start.
  163. 4.1 liter HT-4100
  164. Headbolts
  165. compression test on 1990 4.5L ? constant misfire, idling, under load, coasting...
  166. Engine issues & out of ideas ! 1991 4.9
  167. 4.5L Burnt tire smell from engine
  168. Operarating temperatue 4.1 engine 1985 eldorado
  169. 4.5l Valve Cover Gasket Replacement
  170. Distributor gear problem
  171. time to upgrade the 4.1, seeking advise
  172. No heat!!!!!!
  173. Service Soon digital dash Out
  174. 4.9L Oil Consumption
  175. HT4100 Brake Loss
  176. Warming up a 4.9/ turn off in trafgic
  177. 1990 Eldorado running rough
  178. 91 Deville - 4.9 swaps
  179. Electronic Fan Module & Cooling Fan Fault 9
  180. '92 Coupe deVille (4.9) shudders, knocks and vibrates on acceleration.
  181. Dirt in coolant? w/pic 4.5L
  182. E046
  183. removing 4.9
  184. OBD confusion
  185. RPM vs. highway speed ?
  186. Seville 4.1L V8 Engine - to South Africa
  187. Extremely Erratic Idle Until Operating Temperature
  188. Identifying distributor
  189. Rough Idle w/ Brake Booster Loss
  190. strong gas smell after motor turned off and exiting the vehical...no codes...95 devil
  191. 95 deville shocks all four corner???
  192. Intermittent stalling
  193. 1990 eldorado over heating and coolant boiling
  194. Why and what is it making that noise? (Video included)
  195. HT 4100 turns but will not start unless i spray starting fluid in the Carborator.
  196. 1992 Cadillac Seville
  197. 1985 Eldorado Roadster (4100)
  198. 4.9 Cable Wrapping Questions
  199. Seville 1990 code ED32
  200. 4.9 flooding when shut off
  201. 1984 Fleetwood Broughm d'elegence engine bogs down when hot
  202. Newbie looking for ground(s)
  203. Digital Dash 86 deville
  204. 1990 DeVille, 4.5l engine issues
  205. radiator fun
  206. 1987 DeVille Conv. 4.1 ICM still sets idle to high
  207. tranny swap 1992 sedan deville
  208. Can I get a timing cover for a '93 4.9L?
  209. Waterpmp AGAIN!
  210. 1995 Deville - 4.9 head gasket
  211. 4,1 L Eldorado '83 v/s 4,1 L cope dVille '85
  212. Need cadillac mechanic
  213. Late '85 HT 4100 white smoke from exhaust. Are there specific gasket tests?
  214. Is it worth the $?
  215. 92 seville timing cover torque specs
  216. 88 fleetwood engine randomly dies
  217. Check Engine Light?
  218. 1983 Cadillac Seville HT-4100 Vacuum Leak?
  219. '91 4.9 installed in a '85 Seville-can it be done and any thoughts
  220. 95 cadillac deville 4.9,no heat problem(nothing comes out of the main vents)
  221. 1995 Deville 4.9 randomly dies...
  222. HT 4100 oil pan capacity question
  223. 82 4100 eldorado.shutting off..
  224. 1990 Deville 141k runs slightly rough, high idle, maintains speed on highway by itsel
  225. Random overheating
  226. 1982 eldorado with 4100.''oil pump question..''
  227. 1982 eldorado oil pressure sending unit wires
  228. Re-manufactured HT4100 engine, oil is leaking at exhaust manifold by cylinder 6.
  229. hello gentlemen
  230. hello all
  231. 82 Eldo Digital Dash likes to dance
  232. 88 deville bubbling
  233. 1984 eldorado biarritz
  234. 1989 4.5L overboring
  235. Super high idle - 1992 Fleetwood
  236. 82 Eldo Updating Sensors and Wiring
  237. 1990 Eldorado displays wrong diagnostic parameters in CCDIC
  238. Complete bog down on acceleration when warm, wants to die.
  239. 1989 Deville F32/Running issues..Please Help
  240. what other factor could cause soot?
  241. in over my head...
  242. 4100 soot
  243. 83 pulsing gas pedal and codes 27 52 71..
  244. 83 Seville HT 4100 throttle?
  245. Turbo or super for a 1989 fleetwood
  246. Valve Cover Powdercoating
  247. 93 DeVille 4.9 Questions
  248. 1988 Deville 4.5L oil problems in Russia
  249. 95 deville 4.9 cooling fan & ac fan dont work
  250. 4100 HT Idle speed setting