: HT4100 4.1, 4.5, 4.9



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  1. Quick Timing Question
  2. Voltage out of range(E16), BBOB??
  3. 4.9 muffler for sound
  4. Transmission Fliud Change
  5. More for the Premium 93 vs 89 Debate
  6. Help for83 Fleetwwod
  7. Radiator cooling fan
  8. 4.5 Heads
  9. engine timing in 92 Eldorado
  10. Serious surging.
  11. experiment...MPG...ACTUAL vs. COMPUTER
  12. Service Engine Light Comming on.
  13. Improving Handling
  14. 4.9 cadillac external upgrades
  15. 4.9 deville boring sleeves
  16. So much for putting off the waterpump job
  17. '92 Seville 4.9 questions
  18. 92 ETC:Type of Power Steering Fluid?
  19. 95 Deville No Spark
  20. my cars exhaust sound from inside the car
  21. service sss
  22. lever on seat? 83 eldo
  23. '89 Deville valve cover gasket replacement
  24. car sounds like a lawnmower!!!!
  25. 1992 4.9 with code E46
  26. Where to buy Trans Pan Gasket and Trans Filter w/Gasket
  27. Computer Chip--Shift Kit--Or B&M Shift Plus??
  28. catalytic converter
  29. power steering
  30. 4100 up keep.
  31. z max
  32. transmission modulator
  33. Engine Metal Temperature Switch
  34. F85 error?
  35. Flow Charts?????????????
  36. 90 backfires
  37. Silver and Red V8 PFI engine paint chipping.
  38. 85 fleet fwd trans modulator location?
  39. 1984 , 1985 eldo convertible
  40. Error code 27
  41. 4.1 to 4.9 swap
  42. Searched codes for the first time and I need help.
  43. error E46 where to start?
  44. 1992 Eldorado 4.9l A/C Help...
  45. Error code E31 (93 Deville 4.9L)
  46. 4.9 air filter question...
  47. please help
  48. 88 4.5 Coupe Deville
  49. Rough Idle, stalls and hesitations, but...
  50. Need Help with BarsLeak and Radiator drain!
  51. '92 4.9 operating temp
  52. Engine etc.
  53. Distributor Cap
  54. Car is running rich
  55. 4.1 oil capacity
  56. no heat in cab + overheating
  57. My 88 Sedan Deville, HELP!!!
  58. Removing Alternator On 91 4.9
  59. 4.9 Battery Cables?
  60. Performance Muffler - Ideas?
  61. Should I flush tranny at 52K????
  62. Need Allante Parts - HELP
  63. 251 Belt Problems? Alternator/Fan not working.
  64. 4.1 no start
  65. 4.9:Emission Fail, High HC
  66. Cooling System Pressure Test
  67. 4.9 cam specs.
  68. Requesting 4.5 89' Info
  69. 1988 Eldo fuel tank swap
  70. AC duct rattle
  71. 4.5 running like poop
  72. New Electric "Turbo" not supercharger!
  73. coolant leak in 94 sedan deville (4.9)
  74. a few error codes
  75. She rufuses to be fixed
  76. 4.9 in a 85 fiero with caddy trans
  77. ISC motor acts sticky
  78. egr questions
  79. 88 Coupe deVille backfire
  80. Codes E01-E11, E95?
  81. Self Sticky - 4.9 Engine History and Changes
  82. smog pump adjustment
  83. new to forum
  84. engine missing
  85. 4.9 Idling fast and intermittent service light
  86. Interesting comparison.....
  87. Help! Caddy died and won't start
  88. popping sound when 4.9 is being raced....
  89. performance parts
  90. Injectors & Struts...
  91. 4.5L - 155hp, 180hp, 200hp variants and questions!
  92. power steering pulley
  93. 4.9 better than Northstar?
  94. ht 4100 question
  95. 1990 Deville E98
  96. transmission use
  97. Silent Performance Muffler
  98. Po85
  99. idle speed change?
  100. Cooling Fan Fault?
  101. What to do on a tune up to the 4.9?
  102. Transmission Oil Leak
  103. '90 Deville Speed Sensor.
  104. Nut down the distributor hole
  105. Trans Question 93 4.9 seville
  106. 350 SBC swap pics for DeVillish....
  107. 4.5 engine ticking noise???
  108. 4.5PFI Tune-up tips?
  109. 1990 Fleetwood to a 4.9 or N*
  110. 1985 Fleetwood FWD 4100
  111. tubes in throttle body
  112. Car shuts off after idle for 40 min
  113. ACDelco filter
  114. 1991 Fleetwood 4.9 high speed power loss
  115. Remote oil filter for 4.9 ?
  116. low oil pressure light
  117. 4.9 performance upgrades ?
  118. Premium fuel?
  119. How to find the leaky injector
  120. Cleaning the throttle body on a 4.9
  121. Spark plug removal on a 93 SDV
  122. Fuel Pump on 1990 deville
  123. 1991 Seville pics and questions
  124. Nylon or Metal timeing chain?
  125. im new here but here goes...
  126. '85 Fleetwood Brougham High Idel
  127. No fuel delivery to '87 Biaritz
  128. Better performance out of my 4.5?
  129. '89 SD 4.5 Diag. code E59, nowhere to be found.
  130. 1992 Eldorado Belt Size HELP! 4.9l
  131. Cadillac code check...
  132. $.1 motor
  133. to fix 1 or the other
  134. Caddy problems
  135. Is there a 4.9L NOS Kit?
  136. idiot lights.....
  137. i need help
  138. front pulley torque
  139. More 4.9 issues
  140. what are the best spark plugs?
  141. Engine Dyagnostic Codes
  142. information center
  143. Oil Leak 91 Eldorado 4.9
  144. idle speed adjustment
  145. Best oil filter?
  146. My errors have returned, inexplicibly. Help.
  147. DMV high emitter profile 4100 engine
  148. question on 91-up caddys with 4.9 engine
  149. Dual Output Muffler on a 91 Deville
  150. Cracked Manifold
  151. 10W40 oil is a bad weight?
  152. Dynomax Super Turbo
  153. Anyone have any luck With "Performance Modules"
  154. New To 4.9s And Have A few ?s
  155. 1990 TPS relearn procedure . . .
  156. engine backfires out of throtle body
  157. 88 eldo 4.5, changed the intake gasket yesterday!!
  158. Oil leak 4.5 engine 91 Allante
  159. Motor oil brand
  160. Coolant Leak Fixed- Now Running Rough After Warmup
  161. HELP Failed Emissions!!
  162. 87 deville stalls after a few mins of driving..
  163. I need Info soon
  164. 1986 Coupe DeVille w/ HT4100 V8
  165. 4.5 reliability + durability
  166. Porting your intake....
  167. 91 seville codes
  168. What engine and box can replace 4.1?
  169. 4.1 Autobox advice needed
  170. dealer shocks with 4.9 "information"
  171. Clearing codes on a '90 Fleetwood FWD
  172. Stalling 93 Seviile
  173. My 90's got sensor issues (and a glowing Cat Conv)
  174. 89 sedan deville major problem
  175. 4.5 is just a bigger 4.1? PLUS - BarsLeak or not?
  176. Hard to start below 0 F
  177. 82 4100 front crank oil leak
  178. 1992 Seville High Idle??
  179. Low Oil Pressure - 84 Eldo
  180. Computer Codes and Stereo Questions
  181. didn't pass emissions???
  182. Cooling Problems
  183. My '87 Deville is not running good when warm
  184. Oxygen Sensors - 1993 4.9
  185. Chips
  186. 4.5L V8 engine block leaking?
  187. Best way to use GM top end cleaner in the 4.9?
  188. 94 4.9L S-belt idlers blown - help!!
  189. 4.9L Injectors
  190. Tune up - do I have a distributor cap and rotor?
  191. 4.9 knocks under load
  192. 4.9l V8 Sfi Ohv 16v
  193. such a....BAD vibration..
  194. Can I use any coolant in my 4.9?
  195. 1995 Deville... ONLY 28K miles.... HELP
  196. NO Heat - Deville '87
  197. What can I do to make my 4.9 run like new??
  198. What kind of mpg should I be getting in my 92 4.9?
  199. Diesel engine smell on a 90 Deville
  200. HT4100 strange coolant problem
  201. Significant V4.9 engine vibration at 1300-1600 RPM
  202. Egr!!!
  203. Need 90 SDV 4.5 Idle Reset Procedure & Diag Codes
  204. Replacing HT4100 FWD
  205. Hmmmm
  206. wheres the fuel pump on my 87..?
  207. Allante Intakes
  208. Return-to-idle switch
  209. PC interface for 1994 ???
  210. low oil pressure light
  211. Low oil pressure light when breaking
  212. 92 Deville 4.9L..how many O2 sensors.
  213. 4.9 fuel injection questions
  214. Water pump change
  215. car just stalled..not starting..oil light
  216. 85 deville low idle
  217. 1991 4.9 hesitation problem
  218. oil /STOP light and "smokey" oil on 87 caddy...
  219. code E40..power steering pressure switch..anyone else with the same problem?
  220. 4.5 oil pan removal
  221. EGR Pipe Leak
  222. HELP!! Before I kill my car!
  223. HP on a 4.9L
  224. Bad gas mileage
  225. Oil pan removal 89 Coupe Deville
  226. Iac
  227. Engine swap Question, Want to dump 4100.
  228. My car runs like POOP!!
  229. 4.9 Oil Leak
  230. Recurring misfire/injector problem?
  231. isc relearn
  232. 4.9L Idle Problem
  233. Open and closed loop
  234. stalling
  235. Cadillac engine in Sand Rail
  236. oil pressure switch on 82' 4100
  237. Running Rough After Tune Up???
  238. '87 Deville with oil light on..while in idle...help please!
  239. 4.9 Headgaskets
  240. Solved What I thought was an exhaust rattle
  241. Exhaust/Tailpipe Question
  242. 4.9 Liter Performance
  243. 4.5 fwd to chevy 350
  244. no power /bad mileage
  245. missing 4100 engine, 1988
  246. I'm trying to save a Seville from the crusher
  247. Swapping 4100 for 307. Any advice?
  248. Deville runs rough under 11 gallons of gas
  249. Engine shutter on expressway
  250. 1989 caddy surging