: HT4100 4.1, 4.5, 4.9



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  1. newbie
  2. Repeated O2 Sensor Problem 91 4.9l
  3. Bars Golden Seal Powder Stop Leak And Other Stuff (Deals?)
  4. Need second opinion 4.1 swap to northstar
  5. gonna replace the 4100 on 83 cadillac deville would it be possible to put a chevy 350
  6. Is my 4.9 on the way out?
  7. Installing Reman Ht 4.1 Oil And Coolant Suggestions
  8. What should I do if I put too much bars leak in?
  9. E-030 + Poor Mileage + Bouncing High Idle At Startup
  10. Transmission Looseing fluid , 1 qt per minute
  11. OMG..Maybe it is the water pump. THIS IS ANNOYING.
  12. can the 4.5 handle and 50-75 shot of nitrous
  13. tps................. help!
  14. Took off the belt and its not the waterpump making noise..need help
  15. EGR Malfunction -- Please Help
  16. Waterpump Replacement
  17. Muffler pictures
  18. Throttle position sensor question
  19. advancing the timing question
  20. Vibrating noise around throttle body
  21. 4.9 spark knock
  22. Muffler
  23. Changed coolant without pellets; what to do??
  24. injectors
  25. 94 sedan deville serpentine belt
  26. How hard to replace radiator out of 92 Deville?
  27. Crack in exhaust manifold
  28. Help Plz
  29. Re:Eldo 403FI swap w/MEGASQUIRT ?
  30. Turns out I have a bad water pump.
  31. replacing 4.1 with chevy 5.0
  32. 4.9 leaking oil?
  33. gaskets, paint, parts cleaner
  34. ht 4100 4.1 swap to a 4.9
  35. Questions About Eldorado Country site/info ---403FI swap
  36. 87 DeVille 36k ori. miles
  37. Codes are back!
  38. HP gains from no cat?
  39. 91 deville oxygen sensor(s) location
  40. 1988 deville fuel pump harness question
  41. 1990 SDV tranny- Please help
  42. 88 eldo Special fuel line tool?
  43. Car make caveman brain hurt
  44. Need help with front main bearing!
  45. Surging/cutting out? 1991 Deville 4.9
  46. Gasket to Oil line connector in Radiator.
  47. OH-NO!! The dreaded 4.1 "knocking".
  48. Bbob - Don't flush trans
  49. 94 deville , distrib will be turned the wrong way soon
  50. 93 Caddy seville 4.9
  51. Octane booster/ fuel saver
  52. Rough running (4.1) and ditrib question
  53. engine almost plucked
  54. Replacing Water Pump Too Often
  55. Like illumina said "or that pesky gm module"
  56. to chip or not to chip???
  57. Rebuilding my '88 THM440-T4 ie 4t60
  58. exhaust sound when it rains
  59. Slight Problem, need help
  60. Timming a '85 RWD 4.1...
  61. My mechanic recommended not using bars leak sealant?
  62. quiet, thoaty exhaust
  63. Do you have to set timing after change distributor and cap?
  64. procharger supercharger?
  65. Oil Adapter Hose Fittings
  66. Car won't start; noticed no spark at plug
  67. 90devilleguy, a question about your Muffler!
  68. smog pump replacement 4.5
  69. 83 Eldo Touring 4.1 Engine HELP
  70. 4.9L seville stall/restart problem
  71. Hot starting idling
  72. 4.9 family no hot start issue fix
  73. New to Forum seeking Info in 83 Eldo 4.1 swap and trans
  74. 1990 Cadillac Fleetwood 4.5 FWD
  75. Car cuts Off
  76. another issue (gas guzzler)
  77. part II to my car starting mystery
  78. Trouble codes
  79. car cut off and didn't start until the next day
  80. 1988 Cad SDV motor mounts
  81. 92 STS Engine Stall at low speed...HELP !
  82. Hey aguthmiller I have a few questions
  83. Water in the Oil ... How can it get there?
  84. Will new distributor cap and rotor make car run better?
  85. 94 Deville 4.9 Part Throttle Ping
  86. 92 4.9L Engine Reassembly - my heads are off and engine is in car.
  87. water in oil - Broke down on trip in Coffee Springs Alabama
  88. stuttering problem at idle
  89. 4.5 for 4.1 swap
  90. Got myself an 82 Coupe Deville, having some probs..
  91. 90 sedan deville right blinker acting up
  92. Will top end cleaning be good or bad for an engine with 130K on it??
  93. ALDL location
  94. Best swap for 4.1?
  95. What should I expect for my 0-60
  96. Fuel Pump circuit problem 84 Brougham
  97. 1984 Sedan DeVille over 200,000 miles?
  98. 90 Seville, Code E041
  99. **TH440 - 4.5 FWD - Trans **
  100. 89 4.5 deville overheated
  101. Flowmaster Muffler Installation Pics
  102. 4T60E Leak , ENOUGH IS ENOUGH !!
  103. 90 deville 4.5 125k doggin on freeway
  104. Aftermarket for 4.9?
  105. 4.1 Driveability Problem
  106. Code 44 on '85 Fleetwood Brougham
  107. What's Wrong with My Cadillac?
  108. 4.1/4.5 pros and cons?
  109. Oil leak from under car!
  110. Still having 4.9 idle down problems
  111. 4.9 Vs Northstar
  112. 4.9 emergency..broke something
  113. How hard is it to change the distributor cap and rotor on the 4.9??
  114. HT 4100 Diagnostic Codes
  115. 1989 Eldo help
  116. 4.1 engine timing!! Help...
  117. Engine Swap thoughts!
  118. '85 Fleetwood Brougham 4100
  119. AC won't blow!!!!
  120. Best Oil For HT 4100
  121. how do i enter set timing mode
  122. how to disable traction control on 92 deville?
  123. Muscle car pancake air filter
  124. 4T60 Transaxle or 4T60E what's the diff.
  125. How do I clean the throttle body?
  126. help...change oil soon light on
  127. HT 4100 Engine is it that bad
  128. Tune Ups
  129. Is it hard to find the4 pin plug on tranny?
  130. Woe Is Me!
  131. exhaust venting in cabin
  132. Help with timing advance....
  133. Need Help from Bangkok, Thailand
  134. Quick Timing Question
  135. Voltage out of range(E16), BBOB??
  136. 4.9 muffler for sound
  137. Transmission Fliud Change
  138. More for the Premium 93 vs 89 Debate
  139. Help for83 Fleetwwod
  140. Radiator cooling fan
  141. 4.5 Heads
  142. engine timing in 92 Eldorado
  143. Serious surging.
  144. experiment...MPG...ACTUAL vs. COMPUTER
  145. Service Engine Light Comming on.
  146. Improving Handling
  147. 4.9 cadillac external upgrades
  148. 4.9 deville boring sleeves
  149. So much for putting off the waterpump job
  150. '92 Seville 4.9 questions
  151. 92 ETC:Type of Power Steering Fluid?
  152. 95 Deville No Spark
  153. my cars exhaust sound from inside the car
  154. service sss
  155. lever on seat? 83 eldo
  156. '89 Deville valve cover gasket replacement
  157. car sounds like a lawnmower!!!!
  158. 1992 4.9 with code E46
  159. Where to buy Trans Pan Gasket and Trans Filter w/Gasket
  160. Computer Chip--Shift Kit--Or B&M Shift Plus??
  161. catalytic converter
  162. power steering
  163. 4100 up keep.
  164. z max
  165. transmission modulator
  166. Engine Metal Temperature Switch
  167. F85 error?
  168. Flow Charts?????????????
  169. 90 backfires
  170. Silver and Red V8 PFI engine paint chipping.
  171. 85 fleet fwd trans modulator location?
  172. 1984 , 1985 eldo convertible
  173. Error code 27
  174. 4.1 to 4.9 swap
  175. Searched codes for the first time and I need help.
  176. error E46 where to start?
  177. 1992 Eldorado 4.9l A/C Help...
  178. Error code E31 (93 Deville 4.9L)
  179. 4.9 air filter question...
  180. please help
  181. 88 4.5 Coupe Deville
  182. Rough Idle, stalls and hesitations, but...
  183. Need Help with BarsLeak and Radiator drain!
  184. '92 4.9 operating temp
  185. Engine etc.
  186. Distributor Cap
  187. Car is running rich
  188. 4.1 oil capacity
  189. no heat in cab + overheating
  190. My 88 Sedan Deville, HELP!!!
  191. Removing Alternator On 91 4.9
  192. 4.9 Battery Cables?
  193. Performance Muffler - Ideas?
  194. Should I flush tranny at 52K????
  195. Need Allante Parts - HELP
  196. 251 Belt Problems? Alternator/Fan not working.
  197. 4.1 no start
  198. 4.9:Emission Fail, High HC
  199. Cooling System Pressure Test
  200. 4.9 cam specs.
  201. Requesting 4.5 89' Info
  202. 1988 Eldo fuel tank swap
  203. AC duct rattle
  204. 4.5 running like poop
  205. New Electric "Turbo" not supercharger!
  206. coolant leak in 94 sedan deville (4.9)
  207. a few error codes
  208. She rufuses to be fixed
  209. 4.9 in a 85 fiero with caddy trans
  210. ISC motor acts sticky
  211. egr questions
  212. 88 Coupe deVille backfire
  213. Codes E01-E11, E95?
  214. Self Sticky - 4.9 Engine History and Changes
  215. smog pump adjustment
  216. new to forum
  217. engine missing
  218. 4.9 Idling fast and intermittent service light
  219. Interesting comparison.....
  220. Help! Caddy died and won't start
  221. popping sound when 4.9 is being raced....
  222. performance parts
  223. Injectors & Struts...
  224. 4.5L - 155hp, 180hp, 200hp variants and questions!
  225. power steering pulley
  226. 4.9 better than Northstar?
  227. ht 4100 question
  228. 1990 Deville E98
  229. transmission use
  230. Silent Performance Muffler
  231. Po85
  232. idle speed change?
  233. Cooling Fan Fault?
  234. What to do on a tune up to the 4.9?
  235. Transmission Oil Leak
  236. '90 Deville Speed Sensor.
  237. Nut down the distributor hole
  238. Trans Question 93 4.9 seville
  239. 350 SBC swap pics for DeVillish....
  240. 4.5 engine ticking noise???
  241. 4.5PFI Tune-up tips?
  242. 1990 Fleetwood to a 4.9 or N*
  243. 1985 Fleetwood FWD 4100
  244. tubes in throttle body
  245. Car shuts off after idle for 40 min
  246. ACDelco filter
  247. 1991 Fleetwood 4.9 high speed power loss
  248. Remote oil filter for 4.9 ?
  249. low oil pressure light
  250. 4.9 performance upgrades ?