: HT4100 4.1, 4.5, 4.9



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