: HT4100 4.1, 4.5, 4.9



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