: HT4100 4.1, 4.5, 4.9



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  1. An update on my custom intake setup...
  2. 4100 Service Now / Codes
  3. Valve cover color
  4. 4.9 Idle Adjustment on '93 DeVille ?
  5. Poor mpg
  6. help with 85 eldorado alternator wiring
  7. 4.9L Intake manifold gasket install. Any tips?
  8. Check engine help!?!?
  9. Timing and error code 26
  10. 4100 still running better to rebuild or replace
  11. 4t60e stock converter stall speed
  12. Is my head gasket blown 94 cadillac sedan deville????
  13. Is my head gasket blown 94 cadillac sedan deville????
  14. cables
  15. Codes 4.9
  16. 4.5L ACDelco Spark Plug Question
  17. 4.9 low rpm/light throttle stumbling/bucking
  18. 4.9L 91 Seville power loss... at a loss..
  19. 1987 Deville 4.1 to 4.9 Conversion
  20. 97 Seville cooling
  21. Vacuum connection for heating?
  22. 1994 Deville 4.9 Engine Stalling
  23. Oil pressure specs for 4.1 at idle
  24. Oil pressure specs
  25. 91 Deville engine skip
  26. 4t60e chain and sprocket question
  27. 1st and 2nd design oil pressure switch?
  28. 1983 sed Deville 4100 0ut 1999-2002 Chevy 5.3 in
  29. 4100HT shuts down in sharp left corners
  30. What are my engine replacement options - Current engine is a transverse HT4100
  31. Vid: Cadillacs 1982 HT4100, the Development and Manufacturing
  32. JUST BOUGHT 1995 DEVILLE. Stalling and MAP Code issue?? and Possible related problem
  33. 4.9L coolant issues
  34. Upgrading and restoring a 4.9
  35. Brown sludge?
  36. oil pressure light 4.9 liter
  37. pvc valve housing possible vacuum leak?
  38. ACDELCO best water pump?
  39. 84 CDV Code 37 and Code 53 (need help)
  40. water pump tool?
  41. 4.5 hesitation, stumble, poor mpg; smog pump bypassed
  42. Replacing Air pump fan belt Problems
  43. I need a pic if anybody's got one
  44. 84 CDV need help on firing order and distributor wiring
  45. 4100 stalling after intake gasket repair
  46. 4.9 Injectors
  47. 1983 ht4100 enginge lower end knocking
  48. Ht4100 :(
  49. Can soneone give me a part number?
  50. 4.5 belt tensioner; is bearing replaceable?
  51. 4.9 litre tune up 94 deville
  52. Starting issue -- 91 Eldorado
  53. 4.9 Info Needed
  54. Oh Sh*%! I lost my head.
  55. Remove oil pump on cadillac eldorado 1985 ?
  56. 1985 eldorado biarritz won't start
  57. 4.9 pulled head bolt threads
  58. Hesitation on an 83 cadillac fleetwood brougham with HT4100 motor
  59. 95 sedan shuts down while driving
  60. 93 SDV 4.9 spark plug replacement post mortem (can't edit other thread)
  61. Driving along and suddenly, DEAD!
  62. Starter Gear Clearance
  63. Replacing original plugs/wires 93 SDV........wish me luck!
  64. 4.9 - intake
  65. Idle Problems After Mechanic
  66. Lurching '91 Deville
  67. Can FWD HT 4100 eng and transmission be installed together?
  68. '82 Fleetwood D'elegance coupe problem :(
  69. replacing water pump on my old '84 DeVille 4.1 engine
  70. What are the symptoms of CVJ’s failing?
  71. distributor question
  72. Car not starting
  73. Problem with 1990 Seville 4.5
  74. change spark plugs, 1989 seville 4.5
  75. Oil Leaking from "Everywhere"
  76. 4.1 to 4.1 swap, how hard can it really be???
  77. School of hard knocks
  78. 90 deville 4.5 stalling problems
  79. 1983 Eldorado engine running problem!
  80. Carburetor on V8 4100 HT Eldorado 1985 ?
  81. need some help with my 1994 Deville 4.9L v8
  82. Did I miss anything?
  83. hard starting 1997 STS
  84. 1991 Cadillac Biarittz - Engine problem.
  85. First Caddy Questions
  86. The best engine to put in my Eldo Cadillac?
  87. Stumped!
  88. 1990 cadillac deville
  89. Please Help - error code 19 on 84 Deville ht4100
  90. Fuel Pump Relay - 84 Deville HT4100
  91. Where is the oil pressure switch located - 84 Deville HT4100
  92. Remanufactured 4.1 available
  93. 4.9 Belt Tensioner Question
  94. Rough Running 4.9 - Please Help !
  95. Removing the AIR pump, HT4100
  96. 4T60-E Transaxle, feels like park paw spring is worn out.
  97. Seville Swap: from 83 HT4100 to 81 368
  98. 86 seville 4.1 low engine power-issue
  99. leftover 4.x parts
  100. 4.5 RWD engines for sale?? would this work??
  101. '85 Seville HT 4100 MAP location & mystery connectors ?
  102. awesome 440T4->4T65E conversion
  103. Difficult to start engine in Eldorado 1983
  104. Rough Idle on low mileage 91 Eldorado
  105. "system problem"
  106. Purpose for detent switch and kickdown?
  107. Basics for operating ECM on 84 Deville HT4100??
  108. 4.5 Overheating. Need help
  109. PD08 and Spark Timing
  110. Where is the a/c low pressure valve on a 1990 Seville?
  111. 1985 DeVille Whats That, (Fuel System Canister Valve?)
  112. 4.5 will not go into timing mode, desperately seeking advice
  113. Torque Specs
  114. Looking to replace camshaft to fix lack of power & hesitation - ht4100
  115. HT 4100 engine problem
  116. 84 cadillac eldorado ht4100 rough idle at acceleration
  117. ISC Adjustment & the mysterious green connector
  118. Thinking of picking up an '83 Fleetwood HT4100
  119. Advice, please: 4.9 Cruise Control Cable Stuck
  120. 1995 Sedan Deville HEAD Gasket
  121. 88 seville instrument panel
  122. Need Help with timing/tune-up on 84 Cadillac Deville HT4100
  123. Bad Misfire on Low Mile 4.9 (1991 Eldorado)
  124. thinking about getting mods on 4.5
  125. Vapor Canister Filter
  126. Oil for 4100
  127. Code E49 Air Injection System Fault
  128. 4.5 distributor removal
  129. significant improvements in 94/95 4.9?
  130. Name the Emission Tube for 1990 4.5
  131. source for 4.x cylinder sleeves
  132. 4.9 throttle body interchange data
  133. Engine Swap Process
  134. 4.9 Individual Throttle Body project
  135. 91 Deville - skipping and no 1st or 4th gear-HELP
  136. 96 deville alternator
  137. Falling MPG - 1990 Deville/Fleetwood
  138. 4.5 carb and distributor conversion
  139. A/C Repair
  140. 4.9 running rough after spark plug change Help!
  141. New annoying message: "Change Oil Soon" (just changed it last month!)
  142. 4.9 Horrible Idle
  143. 1993 Distributor, and Minimum Air
  144. 4.1L Idle Speed Issues
  145. 4.9 blown head gasket
  146. codes i pulled from my cadi
  147. idle engine engine hot please help
  148. Oil in coolant, 4.5
  149. 1985 Cadillac El Dorado water pump!
  150. Bad A/C Delco Waterpump. 91 Eldo 4.9 Anything better than AC Delco Waterpumps?
  151. 90' 4.5L Deville Head Bolt Leaking
  152. 4.9 no crank
  153. car is dieing at idle. P048 current trouble code.
  154. 93 Seville 4.9L sporadic miss at idle. Spark Plugs?
  155. Intermittent throttle sticking
  156. Looking for HT4100 Cylinder head guide pin
  157. E 90 Code - VCC Brake Switch Signal Problem
  158. squeeling under the hood
  159. Broke hose
  160. A Time To Celebrate
  161. 7mpg average! Help if anyone can.
  162. Heater Core Replace BRRR COLD!
  163. WARNING! 4.9L Dayco Tensioner Pulley warning: DO NOT BUY #231081!!!
  164. Throttle Questions
  165. HT4100 (4.5 sleeves) Head Bolt Torque Sequence and Specifications?
  166. 1986 Seville HT4100-Overcooling issue
  167. Can't find the engine temperature switch.
  168. Need Help PLEASE HELP!!! Oil dipstick problem
  169. Cold Air Intake?
  170. Oil pan and pump
  171. Can bad ECM cause 85 fleetwood brougham ht4100 miss bad, backfire and barely run?
  172. New Car Got Questions????
  173. the notorious 4.1 thump
  174. Recently rebuilt 85 ht4100...was fine....all of a sudden struggling and backfiring
  175. 4100 Valve train not oiling
  176. E49 code and possible solutions.
  177. timing
  178. 1990 Seville-Message DTC R026 / RO33
  179. E47
  180. burning
  181. e23 and e27
  182. Idle speed control problem? 90 Deville 4.5
  183. E37 code manifold air temp. sensor
  184. 85 fleet ht4100 fwd
  185. Disributor slop question
  186. 1988 Cadillac DeVille 4.5L gas gauge issue
  187. Fuel Line
  188. 4.9 oil pump in 4.5
  189. Colder Spark Plugs
  190. Twinkling lights
  191. Stainless steel exhaust, 90 Deville
  192. 4.1 Intial Timing Question
  193. 92 Deville stalling and backfiring
  194. 4.1 TPS Question
  195. 4.5L Deville runnability issues/ emissions problems
  196. Can I supercharge my 2008 STS AWD?
  197. 85 eldo w/4100
  198. UGH watter pump gasket
  199. Do Not Overfill!
  200. Techheads, answer me this:
  201. allante 4.5! awesome
  202. Replacing head gasket on 1992 4.9
  203. Fuel Imbalance (Left and Right Bank)
  204. leaky rear main oil seal
  205. Persistant Leaking
  206. Coolant Header Tank
  207. Exhaust manifold gaskets
  208. How to adjust idle speed on '91 Eldorado 4,5l V8 ?
  209. Do I have a blown head? And should I replace my motor? 93 Sedan Deville 4.9L V8
  210. What engines are compatible with 93 Sedan Deville?
  211. 4100 to 307 swap (ITS ALIVE!)
  212. high idle after washing engine
  213. spark plugs
  214. 4.9 stumbling right off idle
  215. @50MPH & above; Doggy and slight vibration
  216. Trying to Identify this Hose
  217. 4.1 to a 4.5
  218. 4.x perf options
  219. 93 deville turn signal problems
  220. Oxygen Sensor Code 44
  221. 4.5 in an Isuzu Trooper
  222. 1990 Fleetwood fwd 4.5L Surges and looses power when warm
  223. 84 Eldorado torsion bar anchors
  224. power steering pump bracket
  225. cooling fans
  226. need to replace a couple fuel injectors, any advice before pulling the fuel rail, etc
  227. 84 eldo. antena
  228. replacing a 4.1
  229. Where do I connect Tach
  230. So how old is too old for injectors?
  231. 4.9L missing
  232. Ht4100 question
  233. HT4100 Exhaust Manifold Gaskets
  234. Transmission is shot
  235. 93 deville running great
  236. Fuel Pump runs, but car won't start!
  237. 4.5 distributer 180 out?
  238. 4.9 Distributor / Timing question
  239. Changing Final Drive ratio/ ECM tuning
  240. looking for a good 4100 mechanic
  241. '84 4.1 idles up and down when the A/C is on
  242. Transmission acting funny
  243. HT4100 upkeep and maintenence
  244. 1995 Deville EGR problems ?
  245. P.A.S.S. security system
  246. What is effected by an E0112?
  247. Clunkin Sound
  248. lost my top-end
  249. What is F15 code? ('90 DeVille 4.5)
  250. '84 Eldorado 4100 vacuum readings