: HT4100 4.1, 4.5, 4.9



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  1. 92' dies then restarts by its self
  2. ECM pinouts
  3. Dead 89 deville engine
  4. Going to be a long weekend
  5. A few questions for the Caddy Experts 4.9L
  6. old radiator cap problematic?
  7. 4.9 ltr
  8. 4.9 reliability :P
  9. Help With Code
  10. confused
  11. 4.9 Ltr Timing Belt?
  12. Drive ADL switch?
  13. spark plug question
  14. code ro15
  15. 92 Fleetwood 4.9 hesitation/code help
  16. 4.5 no start, no life. sorta familiar
  17. Yea another code ??
  18. 4.1 Operating Temperatures
  19. coolant leak
  20. A few questions regarding the 4.9
  21. code questions please...
  22. Throttle body bolt stripped out of intake manifold
  23. steering wheel will lock up and car cut off
  24. Help with 89 Sedan deVille codes...
  25. how good are the bottom ends on the 4.9?
  26. E98 code - help!!??
  27. 4.9L northstar
  28. Need help ... engine kicks, accelerates/revs itself
  29. '89 DeVille a/c not working
  30. HT4100 Stalling
  31. 4.9 oil consumption
  32. ht 4100 change over to 350 chevy
  33. Will 4.9 heads fit on a 4.1 block?
  34. Thinking about getting a new coil
  35. 87 Cadillac Seville ,4.1 with blown head gasket
  36. Hi. I need lots of help concerning the 4.9L. Thanks.
  37. timing a 4.5
  38. pulley bearing? serpentine belt not moving
  39. Hub on crankshaft
  40. Tackling Motor mount Replacement-92 Seville(4.9)
  41. 1. Diag Codes 2. Engine Stall
  42. squeek squeek .my speedo cable i think
  43. coolant in oil in my new motor
  44. coolant in oil
  45. Reconnecting Spark Plug Wires - 4.9L
  46. rough poor idle on 91 Seville STS 4.9 ideas?
  47. bbob???
  48. Better MPG with 87 Octane
  49. Preliminary tune-up
  50. car from hell
  51. 1988 Coupe Deville 4.5 ECM problem
  52. Please Help!!!
  53. Well, it cranked but...
  54. 4.9 heads on a 4.5
  55. 1990 fleetwood 4.5 fuel filter and thermostat location????
  56. 4.1 V6 and 4.1 V8
  57. Does the bars leak that comes in the gray bottle do the same thing as the tablets?
  58. 93 SDV trans question
  59. can anyone shine some light on me
  60. What's wrong with my 4100?
  61. What are some tricks to make the 4100 last a long time?
  62. hurt caddy
  63. torque specs for belt tensioner pulley
  64. Need trouble codes for '83 HT-4100 Eldo
  65. 93 loud knocking within engine, while in park
  66. ht4100
  67. I bought my muffler
  68. Valve belts?
  69. gas leak
  70. Just got 3 codes, need some help!
  71. Needing help with a few things....
  72. How can I reset codes on '83 Eldo
  73. 4.9 motor buildup pics...
  74. oil light flickers at idle
  75. 83 coupe deville 4100???
  76. 1987 Fleetwood problems, maybe you guys know or been through it?
  77. how do i...
  78. Cracked Manifold
  79. Bad mpg and very throaty problem
  80. Weird ~ I like the 87 4100 growl
  81. How to check codes for A/C unit?
  82. 3 fan fault message in my 88 seville help?
  83. Fuel injector service
  84. starting
  85. flywheel to torque converter bolts
  86. Harmonic balancer 83 Fwd In-Line 4.1
  87. 4100 with 92K
  88. Newbie needs tranny and code help
  89. Deville still will not start...
  90. knocking solved
  91. Almost ready to pull the ht4100
  92. no fuel
  93. Safety Safety Safety !
  94. A Little Different No Start Problem
  95. 95 Deville Wont Start...Boo
  96. 4.9 being weird help!!!
  97. A/C help?????
  98. E67 error, any ideas?
  99. Water in door!
  100. Air Conditioning
  101. A/C Question for '92 STS
  102. ITS DONE....I finally have a smooth QUIET Cadillac
  103. ht4100 mounting to engine stand bolt size?
  104. '94 4.9 won't start!
  105. 1988 Alante will not run
  106. Swap Question 4100 (electronics)
  107. Let me tell you, water pump replacement is a pain in the @$$.
  108. 4T60E slipping
  109. Proper Engine Break In Reman 4.1
  110. Cadillac Coral?
  111. 4.1 Biarritz hesitation and stalling - long with lots of info!
  112. Marked surge at light throttle
  113. 4.1 Saddened
  114. 95 deville 4.9 miss at idle
  115. newbie
  116. Repeated O2 Sensor Problem 91 4.9l
  117. Bars Golden Seal Powder Stop Leak And Other Stuff (Deals?)
  118. Need second opinion 4.1 swap to northstar
  119. gonna replace the 4100 on 83 cadillac deville would it be possible to put a chevy 350
  120. Is my 4.9 on the way out?
  121. Installing Reman Ht 4.1 Oil And Coolant Suggestions
  122. What should I do if I put too much bars leak in?
  123. E-030 + Poor Mileage + Bouncing High Idle At Startup
  124. Transmission Looseing fluid , 1 qt per minute
  125. OMG..Maybe it is the water pump. THIS IS ANNOYING.
  126. can the 4.5 handle and 50-75 shot of nitrous
  127. tps................. help!
  128. Took off the belt and its not the waterpump making noise..need help
  129. EGR Malfunction -- Please Help
  130. Waterpump Replacement
  131. Muffler pictures
  132. Throttle position sensor question
  133. advancing the timing question
  134. Vibrating noise around throttle body
  135. 4.9 spark knock
  136. Muffler
  137. Changed coolant without pellets; what to do??
  138. injectors
  139. 94 sedan deville serpentine belt
  140. How hard to replace radiator out of 92 Deville?
  141. Crack in exhaust manifold
  142. Help Plz
  143. Re:Eldo 403FI swap w/MEGASQUIRT ?
  144. Turns out I have a bad water pump.
  145. replacing 4.1 with chevy 5.0
  146. 4.9 leaking oil?
  147. gaskets, paint, parts cleaner
  148. ht 4100 4.1 swap to a 4.9
  149. Questions About Eldorado Country site/info ---403FI swap
  150. 87 DeVille 36k ori. miles
  151. Codes are back!
  152. HP gains from no cat?
  153. 91 deville oxygen sensor(s) location
  154. 1988 deville fuel pump harness question
  155. 1990 SDV tranny- Please help
  156. 88 eldo Special fuel line tool?
  157. Car make caveman brain hurt
  158. Need help with front main bearing!
  159. Surging/cutting out? 1991 Deville 4.9
  160. Gasket to Oil line connector in Radiator.
  161. OH-NO!! The dreaded 4.1 "knocking".
  162. Bbob - Don't flush trans
  163. 94 deville , distrib will be turned the wrong way soon
  164. 93 Caddy seville 4.9
  165. Octane booster/ fuel saver
  166. Rough running (4.1) and ditrib question
  167. engine almost plucked
  168. Replacing Water Pump Too Often
  169. Like illumina said "or that pesky gm module"
  170. to chip or not to chip???
  171. Rebuilding my '88 THM440-T4 ie 4t60
  172. exhaust sound when it rains
  173. Slight Problem, need help
  174. Timming a '85 RWD 4.1...
  175. My mechanic recommended not using bars leak sealant?
  176. quiet, thoaty exhaust
  177. Do you have to set timing after change distributor and cap?
  178. procharger supercharger?
  179. Oil Adapter Hose Fittings
  180. Car won't start; noticed no spark at plug
  181. 90devilleguy, a question about your Muffler!
  182. smog pump replacement 4.5
  183. 83 Eldo Touring 4.1 Engine HELP
  184. 4.9L seville stall/restart problem
  185. Hot starting idling
  186. 4.9 family no hot start issue fix
  187. New to Forum seeking Info in 83 Eldo 4.1 swap and trans
  188. 1990 Cadillac Fleetwood 4.5 FWD
  189. Car cuts Off
  190. another issue (gas guzzler)
  191. part II to my car starting mystery
  192. Trouble codes
  193. car cut off and didn't start until the next day
  194. 1988 Cad SDV motor mounts
  195. 92 STS Engine Stall at low speed...HELP !
  196. Hey aguthmiller I have a few questions
  197. Water in the Oil ... How can it get there?
  198. Will new distributor cap and rotor make car run better?
  199. 94 Deville 4.9 Part Throttle Ping
  200. 92 4.9L Engine Reassembly - my heads are off and engine is in car.
  201. water in oil - Broke down on trip in Coffee Springs Alabama
  202. stuttering problem at idle
  203. 4.5 for 4.1 swap
  204. Got myself an 82 Coupe Deville, having some probs..
  205. 90 sedan deville right blinker acting up
  206. Will top end cleaning be good or bad for an engine with 130K on it??
  207. ALDL location
  208. Best swap for 4.1?
  209. What should I expect for my 0-60
  210. Fuel Pump circuit problem 84 Brougham
  211. 1984 Sedan DeVille over 200,000 miles?
  212. 90 Seville, Code E041
  213. **TH440 - 4.5 FWD - Trans **
  214. 89 4.5 deville overheated
  215. Flowmaster Muffler Installation Pics
  216. 4T60E Leak , ENOUGH IS ENOUGH !!
  217. 90 deville 4.5 125k doggin on freeway
  218. Aftermarket for 4.9?
  219. 4.1 Driveability Problem
  220. Code 44 on '85 Fleetwood Brougham
  221. What's Wrong with My Cadillac?
  222. 4.1/4.5 pros and cons?
  223. Oil leak from under car!
  224. Still having 4.9 idle down problems
  225. 4.9 Vs Northstar
  226. 4.9 emergency..broke something
  227. How hard is it to change the distributor cap and rotor on the 4.9??
  228. HT 4100 Diagnostic Codes
  229. 1989 Eldo help
  230. 4.1 engine timing!! Help...
  231. Engine Swap thoughts!
  232. '85 Fleetwood Brougham 4100
  233. AC won't blow!!!!
  234. Best Oil For HT 4100
  235. how do i enter set timing mode
  236. how to disable traction control on 92 deville?
  237. Muscle car pancake air filter
  238. 4T60 Transaxle or 4T60E what's the diff.
  239. How do I clean the throttle body?
  240. help...change oil soon light on
  241. HT 4100 Engine is it that bad
  242. Tune Ups
  243. Is it hard to find the4 pin plug on tranny?
  244. Woe Is Me!
  245. exhaust venting in cabin
  246. Help with timing advance....
  247. Need Help from Bangkok, Thailand
  248. Quick Timing Question
  249. Voltage out of range(E16), BBOB??
  250. 4.9 muffler for sound