: HT4100 4.1, 4.5, 4.9



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  1. RTV on Oil-Pan gasket
  2. Block number?
  3. One problem fixed another shows up. Starter
  4. 4.9 Software
  5. How do I bypass PASKEY
  6. Rough running, bad mileage, unstable idle
  7. Trouble Starting When Warm
  8. Clattering noise from engine front area
  9. What is this hose called???
  10. 83 Eldorado 4.1 auto OD Trans Model # Please
  11. 1986 deville 4.1L
  12. Sedan Deville 4.1 to 4.5 Disaster Swap “This time I got right” part 2
  13. 89 Seville ignition switch click - VATS?
  14. Which a/c compressor to buy for round 4...advice please
  15. Carnut, got it to work, Thanks !
  16. wont start when warm
  17. B336 code, 86 seville
  18. transmission parts and specks
  19. Transmission advice
  20. 4.5-4.9 less inclined for h.g. problems
  21. Transmission Cooler Lines
  22. Severs Idle Problem
  23. 83 Eldo 4.1 Hesitation upon accelleration
  24. Coolant Change and GM Sealant Questions
  25. 95 DeVille PCM Codes
  26. Cleaning an ISC motor from a 1989 Seville
  27. Water in oil - Head/intake maniforld gasket job
  28. Loud bang, car won't turn over. 4100 '82 Deville
  29. Coolant Leak
  30. A/C Compressor Clutch Engagement Issues
  31. 83 Eldo 4.1 Climate Control only lights sometimes
  32. 1989 Deville code help
  33. 1989 Deville code help
  34. 83 4.1 overheated, now, an ISC problem !
  35. car doesn't switch to 3rd gear
  36. Performance 4.9
  37. New Life
  38. 92 Deville 4.9 FPR
  39. plug wire routing conduit/loom
  40. Alternator Pulley
  41. 88 Sedan Deville 4.5L intermittently starts, sometimes dies driving
  42. gear indicator fault :(
  43. 4100 Fuel Problem - Advice Please...
  44. A/C Bypass Belt for 4.5L w/Calif Emissions
  45. i need advice from a tech!!!!!!
  46. HELP! 4.9 Missing and Dist. cap clicking!
  47. 85 eldo 4.1
  48. ht 4100 crankshaft flange 9Harmonic balancer) removal tool?
  49. Mystery drainage of radiator?
  50. Finally replacing 4.9 main bearings
  51. 4.9l stumble
  52. my 4.1 compression numbers
  53. A/C Bypass belt length for 4.9
  54. engine stopped while driving on highway, inside temp not right
  55. The worst gas miliage ever
  56. 86 Seville, 4.1, low idle in drive
  57. electrical diagram needed ASAP
  58. 4.5 questions
  59. 4.5 Miss under full throttle
  60. Reverse slipping?
  61. ignition!!!!!!!!
  62. 4.9 liter--replacing heater core "hoses".
  63. 1982 Deville check engine light
  64. Cruise Control Problem!!
  65. anyone know tps ranges
  66. stripped head bolt please help!!!!!
  67. 1992 Deville fails NOx emissions test
  68. Question Regarding '85 Eldo TPS Fix???
  69. Water Pump Inlet Repair help
  70. I'm afraid to buy these cars ....
  71. Another question - 89 Seville air conditioning leak
  72. 1989 Seville code E13 Oxygen sensor not ready
  73. 1987 - 1989 Fan Control Module
  74. 85 Seville HT4100
  75. How common is this?
  76. deville 4.5 and gm taps
  77. question engine deville 4.5
  78. 4.9 Unstable Idle
  79. torque converter portability
  80. 4.5 High Rev
  81. Oil Feed Pipe o-ring
  82. side gaped spark plugs on a 4.x
  83. 1994 Cadillac Deville,4.9L
  84. 4.9 reverse flow cooling
  85. 4.9L '93 Seville: How do I replace the pickup coil?
  86. All oil gaskets/seals on engine RH side
  87. 4.5 comparied to a 4.9
  88. Th-th-th-that's all folks!
  89. HT 4100 4.1 motor problems - giving up
  90. Power Steering Pum Removal on 4.9
  91. car took a dump today
  92. sings of a head gasket falure in a 4.5
  93. 4.5L engine runs rough
  94. Fuel Injection Cleaning?
  95. Fan Belt Upside Down on Ebay Car?
  96. 92 Cadillac Eldo AC Leak near the fire wall
  97. 4.9l Rpm
  98. 4.9 RWD 5 speed
  99. Can anyone interpert this A/C gauge reading??
  100. clamp-down dist caps
  101. In need of some numbers....
  102. Throttle body spacers on a 4.? engine
  103. HT4100 SES light @ low RPM, much stalling & near stalling
  104. 1992 4.9 injector replacement
  105. Need wiring diagrams.
  106. A/C refrig. temp. sensor question?
  107. Cannot getg into E.6.3 ISC Motor
  108. Sedan Deville 4.1 to 4.5 Disaster Swap “This time I’ll get right”
  109. Pain at the pump and the inspectors
  110. Your advice on the HT 4100 needed/appreciated
  111. 4.9L coolant leak
  112. high output alternator
  113. Have to pump gas pedal to get it to start, then it runs fine??
  114. 4.1 Spark Plug Wires Problem Solved (Maybe)
  115. Weak Battery + Hot Engine - Bad Alternator?
  116. Plug Gap on 4.9L??? (also Bosch Injector Question)
  117. where are the major grounding straps?
  118. I Have Codes... Can anyone interpret?
  119. "illumina" and other Gurus
  120. Fuel Type?
  121. 91 Deville Distributor Coil wiring diagram
  122. Head gasket maybe but hope not!
  123. 4.9 has irratic idle can you help
  124. '86 DeVille rear main seal
  125. where is this supposed to connect
  126. last problem with HT4100 (I hope)
  127. 92 Deville, accelerated on it's own. Friend kinda fixed it but now..
  128. 1991 Seville 4.9L Engine Stumble (TECH PLEASE)
  129. New throttle position sensor?
  130. New Transmission Fluid and Filter
  131. engine pinging off the line?
  132. radiator 1983 Eldorado refurb?
  133. 4.9 ticking when cold
  134. Stop Engine - Oil Light on 1988 4.5L V8
  135. 93 Started, now can't keep belt on
  136. engine pinging???
  137. no chime? cant' open gas lid?
  138. think these are the same parts?
  139. 4.5 Computer Tachometer
  140. Air cleaner cold start door
  141. The Surge - in my 4.9, not Iraq...
  142. 4.9 switched to 87 oct., hard starts, re-time?
  143. 92 deville sound at engine starts and stops
  144. 93 SD 4.9 Gurgling back into the overflow tank
  145. When you buy a remain. ecm, does it come already flashed?
  146. 93 Won't Start
  147. 93 Seville 4.9-Crank position sensor location?
  148. '93 Eldorado - Relays - ELC System
  149. Got new plugs/wires installed on 4.9 today.
  150. 93 deville "CHUNKing" while reved in park or nuetral.
  151. cost of tps
  152. latest 4.1 repairs
  153. 91 Caddy DeVille Sedan Belt
  154. 82 deville tranny problems
  155. 4.1 Question
  156. 1984 Fleetwood 4.1
  157. Trouble codes?
  158. I need a new throttle body
  159. 4.9 timing chain replacement ?
  160. Popular car... at the junkyard
  161. 4.9 swap
  162. Code E26 and E27
  163. 4100? worth rebuilding
  164. Need help finding power steering bracket
  165. 4.1 dampener pulley bolt
  166. ht4100- stop engine-oil pressure light flickers
  167. "The Cadillac 4.1 liter engine is beyond hope for this formula"
  168. 94 Deville won't start
  169. '94 Deville 4.9l torque conv. clutch prob?
  170. 1986 Eldorado stalls under stress
  171. 4.9's torque
  172. Right the wrongs in a 4.1 (4100)
  173. 4.9 engine
  174. 4.9 liter vanity cover removal.
  175. The Mythical 4.9 performance Chip
  176. 4.5 Liter - Last chance before I need to give it up.
  177. Possible ECM problem
  178. Got mother's 1985 Fleetwood Brougham with HT4100
  179. Member 92 Seville 89 - Old Threads
  180. Water Pump Tasks ahead
  181. wont start cold
  182. egr question
  183. Problem of the day :)
  184. 2002 DTS trouble
  185. 250 or 252?
  186. 4.9 isc adjustment: Thanks Ranger
  187. 4.5 engine swap
  188. Hall Effect
  189. How do you get to the back of the FDC
  190. 4100 RWD replacement source
  191. mechanical water temp guage
  192. deck height and bore spacing
  193. 88 4.5L Running rough
  194. 90 eldo-possible tranny issue and engine issue
  195. Exhaust Muffler
  196. 4.9 litre--flat tappet engine?
  197. 4.1 to 4.5
  198. New to Throttle Body Injection?
  199. Haynes or Chiltons
  200. 4100 Updated intake gasket set
  201. '93 Eldorado, 4.9L - Partial Fire, No Start
  202. How do you clean 4.5 throttle body?
  203. oil change
  204. Crazy Coolant Temperatures
  205. Mustard like substance in radiator
  206. Help my 91 cadilliac deville 4.9
  207. Two Problems Not Starting and Stalling
  208. 4.9 water pump
  209. Broken Upper Radiator Hose Connector
  210. 1994 Sedan Deville questions...
  211. Piston 6 hits sparkplug - Bad timing
  212. Coupe Deville 4.5 Rough Running
  213. new and need some help please!!!!!
  214. What should I do, buy or walk? 89 Coupe Deville
  215. E20 - Open Fuel Pump Circut Feedback Signal
  216. 4.1 Running Bad Again
  217. 4.5 Allante Intake on a 4.9 Eldorado
  218. heat issues!!!!
  219. Need Help ASAP!!!!!!
  220. Lound thump when shutting off engine, then no restart
  221. 4.9 Oil Filter ??
  222. 4.9 and spark knock
  223. I really need help, please!
  224. will my 4.9 fit?
  225. I'm going to try the 4.1->4.9 conversion
  226. 1986 cadillac Stalling up hills, need help ASAP
  227. Case of the Evil Tranny
  228. Question when torquing headbolts 4.9L
  229. Synthetic oil no no in 4100
  230. New brain wracking symptom...
  231. For those of you with coolant loss issues.
  232. '93 Eldorado, 4.9L - Bad Fuel Pump?
  233. 4.1 Spun a cam bearing,
  234. C bieng displayed
  235. Is this engine rebuildable?
  236. Flowmaster Exhaust for a 4.9 Deville
  237. A/C Compressor Belt Bypass - 89 Deville 4.5
  238. all 4100's interchangable?
  239. car surges badly when stopping
  240. Blown Head gasket
  241. RPO Code of the 90 4.5L V8?
  242. 4.9 stalls
  243. Choke?
  244. New Member Introduction
  245. Allante HT4100
  246. 4100 Book
  247. replacement fuel injectors
  248. how hard is it to drop the oil pan
  249. HT4100 Recommended Oil Viscosity
  250. Tuning for E10 gasoline