: HT4100 4.1, 4.5, 4.9



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