: HT4100 4.1, 4.5, 4.9



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  1. 4.9 better than Northstar?
  2. ht 4100 question
  3. 1990 Deville E98
  4. transmission use
  5. Silent Performance Muffler
  6. Po85
  7. idle speed change?
  8. Cooling Fan Fault?
  9. What to do on a tune up to the 4.9?
  10. Transmission Oil Leak
  11. '90 Deville Speed Sensor.
  12. Nut down the distributor hole
  13. Trans Question 93 4.9 seville
  14. 350 SBC swap pics for DeVillish....
  15. 4.5 engine ticking noise???
  16. 4.5PFI Tune-up tips?
  17. 1990 Fleetwood to a 4.9 or N*
  18. 1985 Fleetwood FWD 4100
  19. tubes in throttle body
  20. Car shuts off after idle for 40 min
  21. ACDelco filter
  22. 1991 Fleetwood 4.9 high speed power loss
  23. Remote oil filter for 4.9 ?
  24. low oil pressure light
  25. 4.9 performance upgrades ?
  26. Premium fuel?
  27. How to find the leaky injector
  28. Cleaning the throttle body on a 4.9
  29. Spark plug removal on a 93 SDV
  30. Fuel Pump on 1990 deville
  31. 1991 Seville pics and questions
  32. Nylon or Metal timeing chain?
  33. im new here but here goes...
  34. '85 Fleetwood Brougham High Idel
  35. No fuel delivery to '87 Biaritz
  36. Better performance out of my 4.5?
  37. '89 SD 4.5 Diag. code E59, nowhere to be found.
  38. 1992 Eldorado Belt Size HELP! 4.9l
  39. Cadillac code check...
  40. $.1 motor
  41. to fix 1 or the other
  42. Caddy problems
  43. Is there a 4.9L NOS Kit?
  44. idiot lights.....
  45. i need help
  46. front pulley torque
  47. More 4.9 issues
  48. what are the best spark plugs?
  49. Engine Dyagnostic Codes
  50. information center
  51. Oil Leak 91 Eldorado 4.9
  52. idle speed adjustment
  53. Best oil filter?
  54. My errors have returned, inexplicibly. Help.
  55. DMV high emitter profile 4100 engine
  56. question on 91-up caddys with 4.9 engine
  57. Dual Output Muffler on a 91 Deville
  58. Cracked Manifold
  59. 10W40 oil is a bad weight?
  60. Dynomax Super Turbo
  61. Anyone have any luck With "Performance Modules"
  62. New To 4.9s And Have A few ?s
  63. 1990 TPS relearn procedure . . .
  64. engine backfires out of throtle body
  65. 88 eldo 4.5, changed the intake gasket yesterday!!
  66. Oil leak 4.5 engine 91 Allante
  67. Motor oil brand
  68. Coolant Leak Fixed- Now Running Rough After Warmup
  69. HELP Failed Emissions!!
  70. 87 deville stalls after a few mins of driving..
  71. I need Info soon
  72. 1986 Coupe DeVille w/ HT4100 V8
  73. 4.5 reliability + durability
  74. Porting your intake....
  75. 91 seville codes
  76. What engine and box can replace 4.1?
  77. 4.1 Autobox advice needed
  78. dealer shocks with 4.9 "information"
  79. Clearing codes on a '90 Fleetwood FWD
  80. Stalling 93 Seviile
  81. My 90's got sensor issues (and a glowing Cat Conv)
  82. 89 sedan deville major problem
  83. 4.5 is just a bigger 4.1? PLUS - BarsLeak or not?
  84. Hard to start below 0 F
  85. 82 4100 front crank oil leak
  86. 1992 Seville High Idle??
  87. Low Oil Pressure - 84 Eldo
  88. Computer Codes and Stereo Questions
  89. didn't pass emissions???
  90. Cooling Problems
  91. My '87 Deville is not running good when warm
  92. Oxygen Sensors - 1993 4.9
  93. Chips
  94. 4.5L V8 engine block leaking?
  95. Best way to use GM top end cleaner in the 4.9?
  96. 94 4.9L S-belt idlers blown - help!!
  97. 4.9L Injectors
  98. Tune up - do I have a distributor cap and rotor?
  99. 4.9 knocks under load
  100. 4.9l V8 Sfi Ohv 16v
  101. such a....BAD vibration..
  102. Can I use any coolant in my 4.9?
  103. 1995 Deville... ONLY 28K miles.... HELP
  104. NO Heat - Deville '87
  105. What can I do to make my 4.9 run like new??
  106. What kind of mpg should I be getting in my 92 4.9?
  107. Diesel engine smell on a 90 Deville
  108. HT4100 strange coolant problem
  109. Significant V4.9 engine vibration at 1300-1600 RPM
  110. Egr!!!
  111. Need 90 SDV 4.5 Idle Reset Procedure & Diag Codes
  112. Replacing HT4100 FWD
  113. Hmmmm
  114. wheres the fuel pump on my 87..?
  115. Allante Intakes
  116. Return-to-idle switch
  117. PC interface for 1994 ???
  118. low oil pressure light
  119. Low oil pressure light when breaking
  120. 92 Deville 4.9L..how many O2 sensors.
  121. 4.9 fuel injection questions
  122. Water pump change
  123. car just stalled..not starting..oil light
  124. 85 deville low idle
  125. 1991 4.9 hesitation problem
  126. oil /STOP light and "smokey" oil on 87 caddy...
  127. code E40..power steering pressure switch..anyone else with the same problem?
  128. 4.5 oil pan removal
  129. EGR Pipe Leak
  130. HELP!! Before I kill my car!
  131. HP on a 4.9L
  132. Bad gas mileage
  133. Oil pan removal 89 Coupe Deville
  134. Iac
  135. Engine swap Question, Want to dump 4100.
  136. My car runs like POOP!!
  137. 4.9 Oil Leak
  138. Recurring misfire/injector problem?
  139. isc relearn
  140. 4.9L Idle Problem
  141. Open and closed loop
  142. stalling
  143. Cadillac engine in Sand Rail
  144. oil pressure switch on 82' 4100
  145. Running Rough After Tune Up???
  146. '87 Deville with oil light on..while in idle...help please!
  147. 4.9 Headgaskets
  148. Solved What I thought was an exhaust rattle
  149. Exhaust/Tailpipe Question
  150. 4.9 Liter Performance
  151. 4.5 fwd to chevy 350
  152. no power /bad mileage
  153. missing 4100 engine, 1988
  154. I'm trying to save a Seville from the crusher
  155. Swapping 4100 for 307. Any advice?
  156. Deville runs rough under 11 gallons of gas
  157. Engine shutter on expressway
  158. 1989 caddy surging
  159. 1988 Seville (oil-le3aks)
  160. 86 Deville,swap 4.1 for 4.9.....
  161. performance exhaust for 4.9
  162. Interestingly Odd Problem!
  163. Deville 4.9 Intake Mods?
  164. BIG problem with the AIR system.....
  165. Ran rough for one minute, then gone!??
  166. What a stupid place for an oil filter!!
  167. best oil for high mileage 4.9
  168. RPM at idle for 1987 cadillac eldorado
  169. 4100 service now light
  170. 89 Cadillac Deville
  171. 1990 Allante won't start
  172. Heater core replaced, now AC line is freezing
  173. Disappearing coolant
  174. O2 sensor
  175. Oh No!!!!! Blown 4.9 Headgasket !!!!
  176. how to/ Tune up
  177. Help!! 95 Deville Fuel Inj Test
  178. 4.9 performance
  179. 92 Eldo Problems
  180. Need info on the fuel injection system on the 4100
  181. car problems
  182. firing order
  183. stripped cylinder head bolt hole on a 4.9L
  184. Newbie looking for HT4100 info
  185. Need 4.9 info.
  186. Oil Leak, 92, 4.9
  187. New member needs some help
  188. Trouble Shooting
  189. Bosch Fuel Injectors
  190. '94 Deville4.9L idles rough !
  191. Where is the fuel filter on a 90 Coupe DeVille??
  192. Engine Swaps and Expense
  193. 4.9 bearing thump
  194. Doss
  195. Recurring Cooling Problems - any ideas?
  196. Need Advise on ISC Adjustment
  197. 4.9 aftermarket (possibly)
  198. 4.9L and HEI help!
  199. 4.9 life expectancy
  200. Dead DeVille Aftermath!
  201. anyone with a GM manual ????angie????
  202. disable traction control
  203. Help! DeVille is dying!
  204. 4.5 vs. 4.9.... Allante....questions......
  205. check your egr tubes 4.9 bruthas
  206. 1984 4.1 liter waterpump
  207. H.E.I. Help Needed
  208. Low speed hesitation on pull away.
  209. 4.9 liter question
  210. bad EGR valve=poor mpg?
  211. 4.9 crappy milage
  212. More 4.9 Stall Problems!
  213. 4.9 jiggles
  214. injectors for '90 Deville
  215. 4.9 Stall Problem
  216. 1990 4.5 Deville rough idle/miss
  217. Service Code E30
  218. 4.9 performance
  219. What's so great about the 4.9 engine?
  220. 4.9 Serpentine Belt
  221. deck the heads?
  222. Leaky but good engine
  223. free power??
  224. 4.9 Performance Help
  225. Error Codes--please help
  226. throttle angle
  227. 1993 Deville
  228. 4.5 performance parts