: HT4100 4.1, 4.5, 4.9



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