: HT4100 4.1, 4.5, 4.9



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