: HT4100 4.1, 4.5, 4.9



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  1. Advance timing on 4.9
  2. What MPG for 87 Eldorado, 4.1?
  3. E048 EGR fault code how to fix?
  4. 4.9 And The Gas Mileage Sucks!!!
  5. Any way to disable the ses light?
  6. 95 deville tranny question
  7. 92' dies then restarts by its self
  8. ECM pinouts
  9. Dead 89 deville engine
  10. Going to be a long weekend
  11. A few questions for the Caddy Experts 4.9L
  12. old radiator cap problematic?
  13. 4.9 ltr
  14. 4.9 reliability :P
  15. Help With Code
  16. confused
  17. 4.9 Ltr Timing Belt?
  18. Drive ADL switch?
  19. spark plug question
  20. code ro15
  21. 92 Fleetwood 4.9 hesitation/code help
  22. 4.5 no start, no life. sorta familiar
  23. Yea another code ??
  24. 4.1 Operating Temperatures
  25. coolant leak
  26. A few questions regarding the 4.9
  27. code questions please...
  28. Throttle body bolt stripped out of intake manifold
  29. steering wheel will lock up and car cut off
  30. Help with 89 Sedan deVille codes...
  31. how good are the bottom ends on the 4.9?
  32. E98 code - help!!??
  33. 4.9L northstar
  34. Need help ... engine kicks, accelerates/revs itself
  35. '89 DeVille a/c not working
  36. HT4100 Stalling
  37. 4.9 oil consumption
  38. ht 4100 change over to 350 chevy
  39. Will 4.9 heads fit on a 4.1 block?
  40. Thinking about getting a new coil
  41. 87 Cadillac Seville ,4.1 with blown head gasket
  42. Hi. I need lots of help concerning the 4.9L. Thanks.
  43. timing a 4.5
  44. pulley bearing? serpentine belt not moving
  45. Hub on crankshaft
  46. Tackling Motor mount Replacement-92 Seville(4.9)
  47. 1. Diag Codes 2. Engine Stall
  48. squeek squeek .my speedo cable i think
  49. coolant in oil in my new motor
  50. coolant in oil
  51. Reconnecting Spark Plug Wires - 4.9L
  52. rough poor idle on 91 Seville STS 4.9 ideas?
  53. bbob???
  54. Better MPG with 87 Octane
  55. Preliminary tune-up
  56. car from hell
  57. 1988 Coupe Deville 4.5 ECM problem
  58. Please Help!!!
  59. Well, it cranked but...
  60. 4.9 heads on a 4.5
  61. 1990 fleetwood 4.5 fuel filter and thermostat location????
  62. 4.1 V6 and 4.1 V8
  63. Does the bars leak that comes in the gray bottle do the same thing as the tablets?
  64. 93 SDV trans question
  65. can anyone shine some light on me
  66. What's wrong with my 4100?
  67. What are some tricks to make the 4100 last a long time?
  68. hurt caddy
  69. torque specs for belt tensioner pulley
  70. Need trouble codes for '83 HT-4100 Eldo
  71. 93 loud knocking within engine, while in park
  72. ht4100
  73. I bought my muffler
  74. Valve belts?
  75. gas leak
  76. Just got 3 codes, need some help!
  77. Needing help with a few things....
  78. How can I reset codes on '83 Eldo
  79. 4.9 motor buildup pics...
  80. oil light flickers at idle
  81. 83 coupe deville 4100???
  82. 1987 Fleetwood problems, maybe you guys know or been through it?
  83. how do i...
  84. Cracked Manifold
  85. Bad mpg and very throaty problem
  86. Weird ~ I like the 87 4100 growl
  87. How to check codes for A/C unit?
  88. 3 fan fault message in my 88 seville help?
  89. Fuel injector service
  90. starting
  91. flywheel to torque converter bolts
  92. Harmonic balancer 83 Fwd In-Line 4.1
  93. 4100 with 92K
  94. Newbie needs tranny and code help
  95. Deville still will not start...
  96. knocking solved
  97. Almost ready to pull the ht4100
  98. no fuel
  99. Safety Safety Safety !
  100. A Little Different No Start Problem
  101. 95 Deville Wont Start...Boo
  102. 4.9 being weird help!!!
  103. A/C help?????
  104. E67 error, any ideas?
  105. Water in door!
  106. Air Conditioning
  107. A/C Question for '92 STS
  108. ITS DONE....I finally have a smooth QUIET Cadillac
  109. ht4100 mounting to engine stand bolt size?
  110. '94 4.9 won't start!
  111. 1988 Alante will not run
  112. Swap Question 4100 (electronics)
  113. Let me tell you, water pump replacement is a pain in the @$$.
  114. 4T60E slipping
  115. Proper Engine Break In Reman 4.1
  116. Cadillac Coral?
  117. 4.1 Biarritz hesitation and stalling - long with lots of info!
  118. Marked surge at light throttle
  119. 4.1 Saddened
  120. 95 deville 4.9 miss at idle
  121. newbie
  122. Repeated O2 Sensor Problem 91 4.9l
  123. Bars Golden Seal Powder Stop Leak And Other Stuff (Deals?)
  124. Need second opinion 4.1 swap to northstar
  125. gonna replace the 4100 on 83 cadillac deville would it be possible to put a chevy 350
  126. Is my 4.9 on the way out?
  127. Installing Reman Ht 4.1 Oil And Coolant Suggestions
  128. What should I do if I put too much bars leak in?
  129. E-030 + Poor Mileage + Bouncing High Idle At Startup
  130. Transmission Looseing fluid , 1 qt per minute
  131. OMG..Maybe it is the water pump. THIS IS ANNOYING.
  132. can the 4.5 handle and 50-75 shot of nitrous
  133. tps................. help!
  134. Took off the belt and its not the waterpump making noise..need help
  135. EGR Malfunction -- Please Help
  136. Waterpump Replacement
  137. Muffler pictures
  138. Throttle position sensor question
  139. advancing the timing question
  140. Vibrating noise around throttle body
  141. 4.9 spark knock
  142. Muffler
  143. Changed coolant without pellets; what to do??
  144. injectors
  145. 94 sedan deville serpentine belt
  146. How hard to replace radiator out of 92 Deville?
  147. Crack in exhaust manifold
  148. Help Plz
  149. Re:Eldo 403FI swap w/MEGASQUIRT ?
  150. Turns out I have a bad water pump.
  151. replacing 4.1 with chevy 5.0
  152. 4.9 leaking oil?
  153. gaskets, paint, parts cleaner
  154. ht 4100 4.1 swap to a 4.9
  155. Questions About Eldorado Country site/info ---403FI swap
  156. 87 DeVille 36k ori. miles
  157. Codes are back!
  158. HP gains from no cat?
  159. 91 deville oxygen sensor(s) location
  160. 1988 deville fuel pump harness question
  161. 1990 SDV tranny- Please help
  162. 88 eldo Special fuel line tool?
  163. Car make caveman brain hurt
  164. Need help with front main bearing!
  165. Surging/cutting out? 1991 Deville 4.9
  166. Gasket to Oil line connector in Radiator.
  167. OH-NO!! The dreaded 4.1 "knocking".
  168. Bbob - Don't flush trans
  169. 94 deville , distrib will be turned the wrong way soon
  170. 93 Caddy seville 4.9
  171. Octane booster/ fuel saver
  172. Rough running (4.1) and ditrib question
  173. engine almost plucked
  174. Replacing Water Pump Too Often
  175. Like illumina said "or that pesky gm module"
  176. to chip or not to chip???
  177. Rebuilding my '88 THM440-T4 ie 4t60
  178. exhaust sound when it rains
  179. Slight Problem, need help
  180. Timming a '85 RWD 4.1...
  181. My mechanic recommended not using bars leak sealant?
  182. quiet, thoaty exhaust
  183. Do you have to set timing after change distributor and cap?
  184. procharger supercharger?
  185. Oil Adapter Hose Fittings
  186. Car won't start; noticed no spark at plug
  187. 90devilleguy, a question about your Muffler!
  188. smog pump replacement 4.5
  189. 83 Eldo Touring 4.1 Engine HELP
  190. 4.9L seville stall/restart problem
  191. Hot starting idling
  192. 4.9 family no hot start issue fix
  193. New to Forum seeking Info in 83 Eldo 4.1 swap and trans
  194. 1990 Cadillac Fleetwood 4.5 FWD
  195. Car cuts Off
  196. another issue (gas guzzler)
  197. part II to my car starting mystery
  198. Trouble codes
  199. car cut off and didn't start until the next day
  200. 1988 Cad SDV motor mounts
  201. 92 STS Engine Stall at low speed...HELP !
  202. Hey aguthmiller I have a few questions
  203. Water in the Oil ... How can it get there?
  204. Will new distributor cap and rotor make car run better?
  205. 94 Deville 4.9 Part Throttle Ping
  206. 92 4.9L Engine Reassembly - my heads are off and engine is in car.
  207. water in oil - Broke down on trip in Coffee Springs Alabama
  208. stuttering problem at idle
  209. 4.5 for 4.1 swap
  210. Got myself an 82 Coupe Deville, having some probs..
  211. 90 sedan deville right blinker acting up
  212. Will top end cleaning be good or bad for an engine with 130K on it??
  213. ALDL location
  214. Best swap for 4.1?
  215. What should I expect for my 0-60
  216. Fuel Pump circuit problem 84 Brougham
  217. 1984 Sedan DeVille over 200,000 miles?
  218. 90 Seville, Code E041
  219. **TH440 - 4.5 FWD - Trans **
  220. 89 4.5 deville overheated
  221. Flowmaster Muffler Installation Pics
  222. 4T60E Leak , ENOUGH IS ENOUGH !!
  223. 90 deville 4.5 125k doggin on freeway
  224. Aftermarket for 4.9?
  225. 4.1 Driveability Problem
  226. Code 44 on '85 Fleetwood Brougham
  227. What's Wrong with My Cadillac?
  228. 4.1/4.5 pros and cons?
  229. Oil leak from under car!
  230. Still having 4.9 idle down problems
  231. 4.9 Vs Northstar
  232. 4.9 emergency..broke something
  233. How hard is it to change the distributor cap and rotor on the 4.9??
  234. HT 4100 Diagnostic Codes
  235. 1989 Eldo help
  236. 4.1 engine timing!! Help...
  237. Engine Swap thoughts!
  238. '85 Fleetwood Brougham 4100
  239. AC won't blow!!!!
  240. Best Oil For HT 4100
  241. how do i enter set timing mode
  242. how to disable traction control on 92 deville?
  243. Muscle car pancake air filter
  244. 4T60 Transaxle or 4T60E what's the diff.
  245. How do I clean the throttle body?
  246. help...change oil soon light on
  247. HT 4100 Engine is it that bad
  248. Tune Ups
  249. Is it hard to find the4 pin plug on tranny?
  250. Woe Is Me!