: HT4100 4.1, 4.5, 4.9



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  1. 4.9 exhaust info
  2. Throttle valve cable '85
  3. oil pressure light came on - towed home
  4. clackin noise 4.9 deville
  5. Oil-leak solved!
  6. WOW this is a 4.9
  7. PO48 Current/ EGR Fault
  8. Oil Pressure
  9. E98 code on 4.5
  10. ...the HG gremlin got me
  11. Help identify 4.9 engine noise (video included)
  12. Head Gasket 91 caddy
  13. Once again......no joy
  14. BCM Location?
  15. Oil-tube gasket & o-ring
  16. 84 cdv 4100
  17. Question on oil leak - 1989 Seville
  18. No Joy....
  19. RTV on Oil-Pan gasket
  20. Block number?
  21. One problem fixed another shows up. Starter
  22. 4.9 Software
  23. How do I bypass PASKEY
  24. Rough running, bad mileage, unstable idle
  25. Trouble Starting When Warm
  26. Clattering noise from engine front area
  27. What is this hose called???
  28. 83 Eldorado 4.1 auto OD Trans Model # Please
  29. 1986 deville 4.1L
  30. Sedan Deville 4.1 to 4.5 Disaster Swap “This time I got right” part 2
  31. 89 Seville ignition switch click - VATS?
  32. Which a/c compressor to buy for round 4...advice please
  33. Carnut, got it to work, Thanks !
  34. wont start when warm
  35. B336 code, 86 seville
  36. transmission parts and specks
  37. Transmission advice
  38. 4.5-4.9 less inclined for h.g. problems
  39. Transmission Cooler Lines
  40. Severs Idle Problem
  41. 83 Eldo 4.1 Hesitation upon accelleration
  42. Coolant Change and GM Sealant Questions
  43. 95 DeVille PCM Codes
  44. Cleaning an ISC motor from a 1989 Seville
  45. Water in oil - Head/intake maniforld gasket job
  46. Loud bang, car won't turn over. 4100 '82 Deville
  47. Coolant Leak
  48. A/C Compressor Clutch Engagement Issues
  49. 83 Eldo 4.1 Climate Control only lights sometimes
  50. 1989 Deville code help
  51. 1989 Deville code help
  52. 83 4.1 overheated, now, an ISC problem !
  53. car doesn't switch to 3rd gear
  54. Performance 4.9
  55. New Life
  56. 92 Deville 4.9 FPR
  57. plug wire routing conduit/loom
  58. Alternator Pulley
  59. 88 Sedan Deville 4.5L intermittently starts, sometimes dies driving
  60. gear indicator fault :(
  61. 4100 Fuel Problem - Advice Please...
  62. A/C Bypass Belt for 4.5L w/Calif Emissions
  63. i need advice from a tech!!!!!!
  64. HELP! 4.9 Missing and Dist. cap clicking!
  65. 85 eldo 4.1
  66. ht 4100 crankshaft flange 9Harmonic balancer) removal tool?
  67. Mystery drainage of radiator?
  68. Finally replacing 4.9 main bearings
  69. 4.9l stumble
  70. my 4.1 compression numbers
  71. A/C Bypass belt length for 4.9
  72. engine stopped while driving on highway, inside temp not right
  73. The worst gas miliage ever
  74. 86 Seville, 4.1, low idle in drive
  75. electrical diagram needed ASAP
  76. 4.5 questions
  77. 4.5 Miss under full throttle
  78. Reverse slipping?
  79. ignition!!!!!!!!
  80. 4.9 liter--replacing heater core "hoses".
  81. 1982 Deville check engine light
  82. Cruise Control Problem!!
  83. anyone know tps ranges
  84. stripped head bolt please help!!!!!
  85. 1992 Deville fails NOx emissions test
  86. Question Regarding '85 Eldo TPS Fix???
  87. Water Pump Inlet Repair help
  88. I'm afraid to buy these cars ....
  89. Another question - 89 Seville air conditioning leak
  90. 1989 Seville code E13 Oxygen sensor not ready
  91. 1987 - 1989 Fan Control Module
  92. 85 Seville HT4100
  93. How common is this?
  94. deville 4.5 and gm taps
  95. question engine deville 4.5
  96. 4.9 Unstable Idle
  97. torque converter portability
  98. 4.5 High Rev
  99. Oil Feed Pipe o-ring
  100. side gaped spark plugs on a 4.x
  101. 1994 Cadillac Deville,4.9L
  102. 4.9 reverse flow cooling
  103. 4.9L '93 Seville: How do I replace the pickup coil?
  104. All oil gaskets/seals on engine RH side
  105. 4.5 comparied to a 4.9
  106. Th-th-th-that's all folks!
  107. HT 4100 4.1 motor problems - giving up
  108. Power Steering Pum Removal on 4.9
  109. car took a dump today
  110. sings of a head gasket falure in a 4.5
  111. 4.5L engine runs rough
  112. Fuel Injection Cleaning?
  113. Fan Belt Upside Down on Ebay Car?
  114. 92 Cadillac Eldo AC Leak near the fire wall
  115. 4.9l Rpm
  116. 4.9 RWD 5 speed
  117. Can anyone interpert this A/C gauge reading??
  118. clamp-down dist caps
  119. In need of some numbers....
  120. Throttle body spacers on a 4.? engine
  121. HT4100 SES light @ low RPM, much stalling & near stalling
  122. 1992 4.9 injector replacement
  123. Need wiring diagrams.
  124. A/C refrig. temp. sensor question?
  125. Cannot getg into E.6.3 ISC Motor
  126. Sedan Deville 4.1 to 4.5 Disaster Swap “This time I’ll get right”
  127. Pain at the pump and the inspectors
  128. Your advice on the HT 4100 needed/appreciated
  129. 4.9L coolant leak
  130. high output alternator
  131. Have to pump gas pedal to get it to start, then it runs fine??
  132. 4.1 Spark Plug Wires Problem Solved (Maybe)
  133. Weak Battery + Hot Engine - Bad Alternator?
  134. Plug Gap on 4.9L??? (also Bosch Injector Question)
  135. where are the major grounding straps?
  136. I Have Codes... Can anyone interpret?
  137. "illumina" and other Gurus
  138. Fuel Type?
  139. 91 Deville Distributor Coil wiring diagram
  140. Head gasket maybe but hope not!
  141. 4.9 has irratic idle can you help
  142. '86 DeVille rear main seal
  143. where is this supposed to connect
  144. last problem with HT4100 (I hope)
  145. 92 Deville, accelerated on it's own. Friend kinda fixed it but now..
  146. 1991 Seville 4.9L Engine Stumble (TECH PLEASE)
  147. New throttle position sensor?
  148. New Transmission Fluid and Filter
  149. engine pinging off the line?
  150. radiator 1983 Eldorado refurb?
  151. 4.9 ticking when cold
  152. Stop Engine - Oil Light on 1988 4.5L V8
  153. 93 Started, now can't keep belt on
  154. engine pinging???
  155. no chime? cant' open gas lid?
  156. think these are the same parts?
  157. 4.5 Computer Tachometer
  158. Air cleaner cold start door
  159. The Surge - in my 4.9, not Iraq...
  160. 4.9 switched to 87 oct., hard starts, re-time?
  161. 92 deville sound at engine starts and stops
  162. 93 SD 4.9 Gurgling back into the overflow tank
  163. When you buy a remain. ecm, does it come already flashed?
  164. 93 Won't Start
  165. 93 Seville 4.9-Crank position sensor location?
  166. '93 Eldorado - Relays - ELC System
  167. Got new plugs/wires installed on 4.9 today.
  168. 93 deville "CHUNKing" while reved in park or nuetral.
  169. cost of tps
  170. latest 4.1 repairs
  171. 91 Caddy DeVille Sedan Belt
  172. 82 deville tranny problems
  173. 4.1 Question
  174. 1984 Fleetwood 4.1
  175. Trouble codes?
  176. I need a new throttle body
  177. 4.9 timing chain replacement ?
  178. Popular car... at the junkyard
  179. 4.9 swap
  180. Code E26 and E27
  181. 4100? worth rebuilding
  182. Need help finding power steering bracket
  183. 4.1 dampener pulley bolt
  184. ht4100- stop engine-oil pressure light flickers
  185. "The Cadillac 4.1 liter engine is beyond hope for this formula"
  186. 94 Deville won't start
  187. '94 Deville 4.9l torque conv. clutch prob?
  188. 1986 Eldorado stalls under stress
  189. 4.9's torque
  190. Right the wrongs in a 4.1 (4100)
  191. 4.9 engine
  192. 4.9 liter vanity cover removal.
  193. The Mythical 4.9 performance Chip
  194. 4.5 Liter - Last chance before I need to give it up.
  195. Possible ECM problem
  196. Got mother's 1985 Fleetwood Brougham with HT4100
  197. Member 92 Seville 89 - Old Threads
  198. Water Pump Tasks ahead
  199. wont start cold
  200. egr question
  201. Problem of the day :)
  202. 2002 DTS trouble
  203. 250 or 252?
  204. 4.9 isc adjustment: Thanks Ranger
  205. 4.5 engine swap
  206. Hall Effect
  207. How do you get to the back of the FDC
  208. 4100 RWD replacement source
  209. mechanical water temp guage
  210. deck height and bore spacing
  211. 88 4.5L Running rough
  212. 90 eldo-possible tranny issue and engine issue
  213. Exhaust Muffler
  214. 4.9 litre--flat tappet engine?
  215. 4.1 to 4.5
  216. New to Throttle Body Injection?
  217. Haynes or Chiltons
  218. 4100 Updated intake gasket set
  219. '93 Eldorado, 4.9L - Partial Fire, No Start
  220. How do you clean 4.5 throttle body?
  221. oil change
  222. Crazy Coolant Temperatures
  223. Mustard like substance in radiator
  224. Help my 91 cadilliac deville 4.9
  225. Two Problems Not Starting and Stalling
  226. 4.9 water pump
  227. Broken Upper Radiator Hose Connector
  228. 1994 Sedan Deville questions...
  229. Piston 6 hits sparkplug - Bad timing
  230. Coupe Deville 4.5 Rough Running
  231. new and need some help please!!!!!
  232. What should I do, buy or walk? 89 Coupe Deville
  233. E20 - Open Fuel Pump Circut Feedback Signal
  234. 4.1 Running Bad Again
  235. 4.5 Allante Intake on a 4.9 Eldorado
  236. heat issues!!!!
  237. Need Help ASAP!!!!!!
  238. Lound thump when shutting off engine, then no restart
  239. 4.9 Oil Filter ??
  240. 4.9 and spark knock
  241. I really need help, please!
  242. will my 4.9 fit?
  243. I'm going to try the 4.1->4.9 conversion
  244. 1986 cadillac Stalling up hills, need help ASAP
  245. Case of the Evil Tranny
  246. Question when torquing headbolts 4.9L
  247. Synthetic oil no no in 4100
  248. New brain wracking symptom...
  249. For those of you with coolant loss issues.
  250. '93 Eldorado, 4.9L - Bad Fuel Pump?