: HT4100 4.1, 4.5, 4.9



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  1. Help with timing advance....
  2. Need Help from Bangkok, Thailand
  3. Quick Timing Question
  4. Voltage out of range(E16), BBOB??
  5. 4.9 muffler for sound
  6. Transmission Fliud Change
  7. More for the Premium 93 vs 89 Debate
  8. Help for83 Fleetwwod
  9. Radiator cooling fan
  10. 4.5 Heads
  11. engine timing in 92 Eldorado
  12. Serious surging.
  13. experiment...MPG...ACTUAL vs. COMPUTER
  14. Service Engine Light Comming on.
  15. Improving Handling
  16. 4.9 cadillac external upgrades
  17. 4.9 deville boring sleeves
  18. So much for putting off the waterpump job
  19. '92 Seville 4.9 questions
  20. 92 ETC:Type of Power Steering Fluid?
  21. 95 Deville No Spark
  22. my cars exhaust sound from inside the car
  23. service sss
  24. lever on seat? 83 eldo
  25. '89 Deville valve cover gasket replacement
  26. car sounds like a lawnmower!!!!
  27. 1992 4.9 with code E46
  28. Where to buy Trans Pan Gasket and Trans Filter w/Gasket
  29. Computer Chip--Shift Kit--Or B&M Shift Plus??
  30. catalytic converter
  31. power steering
  32. 4100 up keep.
  33. z max
  34. transmission modulator
  35. Engine Metal Temperature Switch
  36. F85 error?
  37. Flow Charts?????????????
  38. 90 backfires
  39. Silver and Red V8 PFI engine paint chipping.
  40. 85 fleet fwd trans modulator location?
  41. 1984 , 1985 eldo convertible
  42. Error code 27
  43. 4.1 to 4.9 swap
  44. Searched codes for the first time and I need help.
  45. error E46 where to start?
  46. 1992 Eldorado 4.9l A/C Help...
  47. Error code E31 (93 Deville 4.9L)
  48. 4.9 air filter question...
  49. please help
  50. 88 4.5 Coupe Deville
  51. Rough Idle, stalls and hesitations, but...
  52. Need Help with BarsLeak and Radiator drain!
  53. '92 4.9 operating temp
  54. Engine etc.
  55. Distributor Cap
  56. Car is running rich
  57. 4.1 oil capacity
  58. no heat in cab + overheating
  59. My 88 Sedan Deville, HELP!!!
  60. Removing Alternator On 91 4.9
  61. 4.9 Battery Cables?
  62. Performance Muffler - Ideas?
  63. Should I flush tranny at 52K????
  64. Need Allante Parts - HELP
  65. 251 Belt Problems? Alternator/Fan not working.
  66. 4.1 no start
  67. 4.9:Emission Fail, High HC
  68. Cooling System Pressure Test
  69. 4.9 cam specs.
  70. Requesting 4.5 89' Info
  71. 1988 Eldo fuel tank swap
  72. AC duct rattle
  73. 4.5 running like poop
  74. New Electric "Turbo" not supercharger!
  75. coolant leak in 94 sedan deville (4.9)
  76. a few error codes
  77. She rufuses to be fixed
  78. 4.9 in a 85 fiero with caddy trans
  79. ISC motor acts sticky
  80. egr questions
  81. 88 Coupe deVille backfire
  82. Codes E01-E11, E95?
  83. Self Sticky - 4.9 Engine History and Changes
  84. smog pump adjustment
  85. new to forum
  86. engine missing
  87. 4.9 Idling fast and intermittent service light
  88. Interesting comparison.....
  89. Help! Caddy died and won't start
  90. popping sound when 4.9 is being raced....
  91. performance parts
  92. Injectors & Struts...
  93. 4.5L - 155hp, 180hp, 200hp variants and questions!
  94. power steering pulley
  95. 4.9 better than Northstar?
  96. ht 4100 question
  97. 1990 Deville E98
  98. transmission use
  99. Silent Performance Muffler
  100. Po85
  101. idle speed change?
  102. Cooling Fan Fault?
  103. What to do on a tune up to the 4.9?
  104. Transmission Oil Leak
  105. '90 Deville Speed Sensor.
  106. Nut down the distributor hole
  107. Trans Question 93 4.9 seville
  108. 350 SBC swap pics for DeVillish....
  109. 4.5 engine ticking noise???
  110. 4.5PFI Tune-up tips?
  111. 1990 Fleetwood to a 4.9 or N*
  112. 1985 Fleetwood FWD 4100
  113. tubes in throttle body
  114. Car shuts off after idle for 40 min
  115. ACDelco filter
  116. 1991 Fleetwood 4.9 high speed power loss
  117. Remote oil filter for 4.9 ?
  118. low oil pressure light
  119. 4.9 performance upgrades ?
  120. Premium fuel?
  121. How to find the leaky injector
  122. Cleaning the throttle body on a 4.9
  123. Spark plug removal on a 93 SDV
  124. Fuel Pump on 1990 deville
  125. 1991 Seville pics and questions
  126. Nylon or Metal timeing chain?
  127. im new here but here goes...
  128. '85 Fleetwood Brougham High Idel
  129. No fuel delivery to '87 Biaritz
  130. Better performance out of my 4.5?
  131. '89 SD 4.5 Diag. code E59, nowhere to be found.
  132. 1992 Eldorado Belt Size HELP! 4.9l
  133. Cadillac code check...
  134. $.1 motor
  135. to fix 1 or the other
  136. Caddy problems
  137. Is there a 4.9L NOS Kit?
  138. idiot lights.....
  139. i need help
  140. front pulley torque
  141. More 4.9 issues
  142. what are the best spark plugs?
  143. Engine Dyagnostic Codes
  144. information center
  145. Oil Leak 91 Eldorado 4.9
  146. idle speed adjustment
  147. Best oil filter?
  148. My errors have returned, inexplicibly. Help.
  149. DMV high emitter profile 4100 engine
  150. question on 91-up caddys with 4.9 engine
  151. Dual Output Muffler on a 91 Deville
  152. Cracked Manifold
  153. 10W40 oil is a bad weight?
  154. Dynomax Super Turbo
  155. Anyone have any luck With "Performance Modules"
  156. New To 4.9s And Have A few ?s
  157. 1990 TPS relearn procedure . . .
  158. engine backfires out of throtle body
  159. 88 eldo 4.5, changed the intake gasket yesterday!!
  160. Oil leak 4.5 engine 91 Allante
  161. Motor oil brand
  162. Coolant Leak Fixed- Now Running Rough After Warmup
  163. HELP Failed Emissions!!
  164. 87 deville stalls after a few mins of driving..
  165. I need Info soon
  166. 1986 Coupe DeVille w/ HT4100 V8
  167. 4.5 reliability + durability
  168. Porting your intake....
  169. 91 seville codes
  170. What engine and box can replace 4.1?
  171. 4.1 Autobox advice needed
  172. dealer shocks with 4.9 "information"
  173. Clearing codes on a '90 Fleetwood FWD
  174. Stalling 93 Seviile
  175. My 90's got sensor issues (and a glowing Cat Conv)
  176. 89 sedan deville major problem
  177. 4.5 is just a bigger 4.1? PLUS - BarsLeak or not?
  178. Hard to start below 0 F
  179. 82 4100 front crank oil leak
  180. 1992 Seville High Idle??
  181. Low Oil Pressure - 84 Eldo
  182. Computer Codes and Stereo Questions
  183. didn't pass emissions???
  184. Cooling Problems
  185. My '87 Deville is not running good when warm
  186. Oxygen Sensors - 1993 4.9
  187. Chips
  188. 4.5L V8 engine block leaking?
  189. Best way to use GM top end cleaner in the 4.9?
  190. 94 4.9L S-belt idlers blown - help!!
  191. 4.9L Injectors
  192. Tune up - do I have a distributor cap and rotor?
  193. 4.9 knocks under load
  194. 4.9l V8 Sfi Ohv 16v
  195. such a....BAD vibration..
  196. Can I use any coolant in my 4.9?
  197. 1995 Deville... ONLY 28K miles.... HELP
  198. NO Heat - Deville '87
  199. What can I do to make my 4.9 run like new??
  200. What kind of mpg should I be getting in my 92 4.9?
  201. Diesel engine smell on a 90 Deville
  202. HT4100 strange coolant problem
  203. Significant V4.9 engine vibration at 1300-1600 RPM
  204. Egr!!!
  205. Need 90 SDV 4.5 Idle Reset Procedure & Diag Codes
  206. Replacing HT4100 FWD
  207. Hmmmm
  208. wheres the fuel pump on my 87..?
  209. Allante Intakes
  210. Return-to-idle switch
  211. PC interface for 1994 ???
  212. low oil pressure light
  213. Low oil pressure light when breaking
  214. 92 Deville 4.9L..how many O2 sensors.
  215. 4.9 fuel injection questions
  216. Water pump change
  217. car just stalled..not starting..oil light
  218. 85 deville low idle
  219. 1991 4.9 hesitation problem
  220. oil /STOP light and "smokey" oil on 87 caddy...
  221. code E40..power steering pressure switch..anyone else with the same problem?
  222. 4.5 oil pan removal
  223. EGR Pipe Leak
  224. HELP!! Before I kill my car!
  225. HP on a 4.9L
  226. Bad gas mileage
  227. Oil pan removal 89 Coupe Deville
  228. Iac
  229. Engine swap Question, Want to dump 4100.
  230. My car runs like POOP!!
  231. 4.9 Oil Leak
  232. Recurring misfire/injector problem?
  233. isc relearn
  234. 4.9L Idle Problem
  235. Open and closed loop
  236. stalling
  237. Cadillac engine in Sand Rail
  238. oil pressure switch on 82' 4100
  239. Running Rough After Tune Up???
  240. '87 Deville with oil light on..while in idle...help please!
  241. 4.9 Headgaskets
  242. Solved What I thought was an exhaust rattle
  243. Exhaust/Tailpipe Question
  244. 4.9 Liter Performance
  245. 4.5 fwd to chevy 350
  246. no power /bad mileage
  247. missing 4100 engine, 1988
  248. I'm trying to save a Seville from the crusher
  249. Swapping 4100 for 307. Any advice?
  250. Deville runs rough under 11 gallons of gas