: HT4100 4.1, 4.5, 4.9



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