: HT4100 4.1, 4.5, 4.9



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  1. 4T60 Transaxle or 4T60E what's the diff.
  2. How do I clean the throttle body?
  3. help...change oil soon light on
  4. HT 4100 Engine is it that bad
  5. Tune Ups
  6. Is it hard to find the4 pin plug on tranny?
  7. Woe Is Me!
  8. exhaust venting in cabin
  9. Help with timing advance....
  10. Need Help from Bangkok, Thailand
  11. Quick Timing Question
  12. Voltage out of range(E16), BBOB??
  13. 4.9 muffler for sound
  14. Transmission Fliud Change
  15. More for the Premium 93 vs 89 Debate
  16. Help for83 Fleetwwod
  17. Radiator cooling fan
  18. 4.5 Heads
  19. engine timing in 92 Eldorado
  20. Serious surging.
  21. experiment...MPG...ACTUAL vs. COMPUTER
  22. Service Engine Light Comming on.
  23. Improving Handling
  24. 4.9 cadillac external upgrades
  25. 4.9 deville boring sleeves
  26. So much for putting off the waterpump job
  27. '92 Seville 4.9 questions
  28. 92 ETC:Type of Power Steering Fluid?
  29. 95 Deville No Spark
  30. my cars exhaust sound from inside the car
  31. service sss
  32. lever on seat? 83 eldo
  33. '89 Deville valve cover gasket replacement
  34. car sounds like a lawnmower!!!!
  35. 1992 4.9 with code E46
  36. Where to buy Trans Pan Gasket and Trans Filter w/Gasket
  37. Computer Chip--Shift Kit--Or B&M Shift Plus??
  38. catalytic converter
  39. power steering
  40. 4100 up keep.
  41. z max
  42. transmission modulator
  43. Engine Metal Temperature Switch
  44. F85 error?
  45. Flow Charts?????????????
  46. 90 backfires
  47. Silver and Red V8 PFI engine paint chipping.
  48. 85 fleet fwd trans modulator location?
  49. 1984 , 1985 eldo convertible
  50. Error code 27
  51. 4.1 to 4.9 swap
  52. Searched codes for the first time and I need help.
  53. error E46 where to start?
  54. 1992 Eldorado 4.9l A/C Help...
  55. Error code E31 (93 Deville 4.9L)
  56. 4.9 air filter question...
  57. please help
  58. 88 4.5 Coupe Deville
  59. Rough Idle, stalls and hesitations, but...
  60. Need Help with BarsLeak and Radiator drain!
  61. '92 4.9 operating temp
  62. Engine etc.
  63. Distributor Cap
  64. Car is running rich
  65. 4.1 oil capacity
  66. no heat in cab + overheating
  67. My 88 Sedan Deville, HELP!!!
  68. Removing Alternator On 91 4.9
  69. 4.9 Battery Cables?
  70. Performance Muffler - Ideas?
  71. Should I flush tranny at 52K????
  72. Need Allante Parts - HELP
  73. 251 Belt Problems? Alternator/Fan not working.
  74. 4.1 no start
  75. 4.9:Emission Fail, High HC
  76. Cooling System Pressure Test
  77. 4.9 cam specs.
  78. Requesting 4.5 89' Info
  79. 1988 Eldo fuel tank swap
  80. AC duct rattle
  81. 4.5 running like poop
  82. New Electric "Turbo" not supercharger!
  83. coolant leak in 94 sedan deville (4.9)
  84. a few error codes
  85. She rufuses to be fixed
  86. 4.9 in a 85 fiero with caddy trans
  87. ISC motor acts sticky
  88. egr questions
  89. 88 Coupe deVille backfire
  90. Codes E01-E11, E95?
  91. Self Sticky - 4.9 Engine History and Changes
  92. smog pump adjustment
  93. new to forum
  94. engine missing
  95. 4.9 Idling fast and intermittent service light
  96. Interesting comparison.....
  97. Help! Caddy died and won't start
  98. popping sound when 4.9 is being raced....
  99. performance parts
  100. Injectors & Struts...
  101. 4.5L - 155hp, 180hp, 200hp variants and questions!
  102. power steering pulley
  103. 4.9 better than Northstar?
  104. ht 4100 question
  105. 1990 Deville E98
  106. transmission use
  107. Silent Performance Muffler
  108. Po85
  109. idle speed change?
  110. Cooling Fan Fault?
  111. What to do on a tune up to the 4.9?
  112. Transmission Oil Leak
  113. '90 Deville Speed Sensor.
  114. Nut down the distributor hole
  115. Trans Question 93 4.9 seville
  116. 350 SBC swap pics for DeVillish....
  117. 4.5 engine ticking noise???
  118. 4.5PFI Tune-up tips?
  119. 1990 Fleetwood to a 4.9 or N*
  120. 1985 Fleetwood FWD 4100
  121. tubes in throttle body
  122. Car shuts off after idle for 40 min
  123. ACDelco filter
  124. 1991 Fleetwood 4.9 high speed power loss
  125. Remote oil filter for 4.9 ?
  126. low oil pressure light
  127. 4.9 performance upgrades ?
  128. Premium fuel?
  129. How to find the leaky injector
  130. Cleaning the throttle body on a 4.9
  131. Spark plug removal on a 93 SDV
  132. Fuel Pump on 1990 deville
  133. 1991 Seville pics and questions
  134. Nylon or Metal timeing chain?
  135. im new here but here goes...
  136. '85 Fleetwood Brougham High Idel
  137. No fuel delivery to '87 Biaritz
  138. Better performance out of my 4.5?
  139. '89 SD 4.5 Diag. code E59, nowhere to be found.
  140. 1992 Eldorado Belt Size HELP! 4.9l
  141. Cadillac code check...
  142. $.1 motor
  143. to fix 1 or the other
  144. Caddy problems
  145. Is there a 4.9L NOS Kit?
  146. idiot lights.....
  147. i need help
  148. front pulley torque
  149. More 4.9 issues
  150. what are the best spark plugs?
  151. Engine Dyagnostic Codes
  152. information center
  153. Oil Leak 91 Eldorado 4.9
  154. idle speed adjustment
  155. Best oil filter?
  156. My errors have returned, inexplicibly. Help.
  157. DMV high emitter profile 4100 engine
  158. question on 91-up caddys with 4.9 engine
  159. Dual Output Muffler on a 91 Deville
  160. Cracked Manifold
  161. 10W40 oil is a bad weight?
  162. Dynomax Super Turbo
  163. Anyone have any luck With "Performance Modules"
  164. New To 4.9s And Have A few ?s
  165. 1990 TPS relearn procedure . . .
  166. engine backfires out of throtle body
  167. 88 eldo 4.5, changed the intake gasket yesterday!!
  168. Oil leak 4.5 engine 91 Allante
  169. Motor oil brand
  170. Coolant Leak Fixed- Now Running Rough After Warmup
  171. HELP Failed Emissions!!
  172. 87 deville stalls after a few mins of driving..
  173. I need Info soon
  174. 1986 Coupe DeVille w/ HT4100 V8
  175. 4.5 reliability + durability
  176. Porting your intake....
  177. 91 seville codes
  178. What engine and box can replace 4.1?
  179. 4.1 Autobox advice needed
  180. dealer shocks with 4.9 "information"
  181. Clearing codes on a '90 Fleetwood FWD
  182. Stalling 93 Seviile
  183. My 90's got sensor issues (and a glowing Cat Conv)
  184. 89 sedan deville major problem
  185. 4.5 is just a bigger 4.1? PLUS - BarsLeak or not?
  186. Hard to start below 0 F
  187. 82 4100 front crank oil leak
  188. 1992 Seville High Idle??
  189. Low Oil Pressure - 84 Eldo
  190. Computer Codes and Stereo Questions
  191. didn't pass emissions???
  192. Cooling Problems
  193. My '87 Deville is not running good when warm
  194. Oxygen Sensors - 1993 4.9
  195. Chips
  196. 4.5L V8 engine block leaking?
  197. Best way to use GM top end cleaner in the 4.9?
  198. 94 4.9L S-belt idlers blown - help!!
  199. 4.9L Injectors
  200. Tune up - do I have a distributor cap and rotor?
  201. 4.9 knocks under load
  202. 4.9l V8 Sfi Ohv 16v
  203. such a....BAD vibration..
  204. Can I use any coolant in my 4.9?
  205. 1995 Deville... ONLY 28K miles.... HELP
  206. NO Heat - Deville '87
  207. What can I do to make my 4.9 run like new??
  208. What kind of mpg should I be getting in my 92 4.9?
  209. Diesel engine smell on a 90 Deville
  210. HT4100 strange coolant problem
  211. Significant V4.9 engine vibration at 1300-1600 RPM
  212. Egr!!!
  213. Need 90 SDV 4.5 Idle Reset Procedure & Diag Codes
  214. Replacing HT4100 FWD
  215. Hmmmm
  216. wheres the fuel pump on my 87..?
  217. Allante Intakes
  218. Return-to-idle switch
  219. PC interface for 1994 ???
  220. low oil pressure light
  221. Low oil pressure light when breaking
  222. 92 Deville 4.9L..how many O2 sensors.
  223. 4.9 fuel injection questions
  224. Water pump change
  225. car just stalled..not starting..oil light
  226. 85 deville low idle
  227. 1991 4.9 hesitation problem
  228. oil /STOP light and "smokey" oil on 87 caddy...
  229. code E40..power steering pressure switch..anyone else with the same problem?
  230. 4.5 oil pan removal
  231. EGR Pipe Leak
  232. HELP!! Before I kill my car!
  233. HP on a 4.9L
  234. Bad gas mileage
  235. Oil pan removal 89 Coupe Deville
  236. Iac
  237. Engine swap Question, Want to dump 4100.
  238. My car runs like POOP!!
  239. 4.9 Oil Leak
  240. Recurring misfire/injector problem?
  241. isc relearn
  242. 4.9L Idle Problem
  243. Open and closed loop
  244. stalling
  245. Cadillac engine in Sand Rail
  246. oil pressure switch on 82' 4100
  247. Running Rough After Tune Up???
  248. '87 Deville with oil light on..while in idle...help please!
  249. 4.9 Headgaskets
  250. Solved What I thought was an exhaust rattle