: HT4100 4.1, 4.5, 4.9



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  1. oil sender location - 4.1
  2. code po23??? Any thoughts
  3. 4.9 exhaust info
  4. Throttle valve cable '85
  5. oil pressure light came on - towed home
  6. clackin noise 4.9 deville
  7. Oil-leak solved!
  8. WOW this is a 4.9
  9. PO48 Current/ EGR Fault
  10. Oil Pressure
  11. E98 code on 4.5
  12. ...the HG gremlin got me
  13. Help identify 4.9 engine noise (video included)
  14. Head Gasket 91 caddy
  15. Once again......no joy
  16. BCM Location?
  17. Oil-tube gasket & o-ring
  18. 84 cdv 4100
  19. Question on oil leak - 1989 Seville
  20. No Joy....
  21. RTV on Oil-Pan gasket
  22. Block number?
  23. One problem fixed another shows up. Starter
  24. 4.9 Software
  25. How do I bypass PASKEY
  26. Rough running, bad mileage, unstable idle
  27. Trouble Starting When Warm
  28. Clattering noise from engine front area
  29. What is this hose called???
  30. 83 Eldorado 4.1 auto OD Trans Model # Please
  31. 1986 deville 4.1L
  32. Sedan Deville 4.1 to 4.5 Disaster Swap “This time I got right” part 2
  33. 89 Seville ignition switch click - VATS?
  34. Which a/c compressor to buy for round 4...advice please
  35. Carnut, got it to work, Thanks !
  36. wont start when warm
  37. B336 code, 86 seville
  38. transmission parts and specks
  39. Transmission advice
  40. 4.5-4.9 less inclined for h.g. problems
  41. Transmission Cooler Lines
  42. Severs Idle Problem
  43. 83 Eldo 4.1 Hesitation upon accelleration
  44. Coolant Change and GM Sealant Questions
  45. 95 DeVille PCM Codes
  46. Cleaning an ISC motor from a 1989 Seville
  47. Water in oil - Head/intake maniforld gasket job
  48. Loud bang, car won't turn over. 4100 '82 Deville
  49. Coolant Leak
  50. A/C Compressor Clutch Engagement Issues
  51. 83 Eldo 4.1 Climate Control only lights sometimes
  52. 1989 Deville code help
  53. 1989 Deville code help
  54. 83 4.1 overheated, now, an ISC problem !
  55. car doesn't switch to 3rd gear
  56. Performance 4.9
  57. New Life
  58. 92 Deville 4.9 FPR
  59. plug wire routing conduit/loom
  60. Alternator Pulley
  61. 88 Sedan Deville 4.5L intermittently starts, sometimes dies driving
  62. gear indicator fault :(
  63. 4100 Fuel Problem - Advice Please...
  64. A/C Bypass Belt for 4.5L w/Calif Emissions
  65. i need advice from a tech!!!!!!
  66. HELP! 4.9 Missing and Dist. cap clicking!
  67. 85 eldo 4.1
  68. ht 4100 crankshaft flange 9Harmonic balancer) removal tool?
  69. Mystery drainage of radiator?
  70. Finally replacing 4.9 main bearings
  71. 4.9l stumble
  72. my 4.1 compression numbers
  73. A/C Bypass belt length for 4.9
  74. engine stopped while driving on highway, inside temp not right
  75. The worst gas miliage ever
  76. 86 Seville, 4.1, low idle in drive
  77. electrical diagram needed ASAP
  78. 4.5 questions
  79. 4.5 Miss under full throttle
  80. Reverse slipping?
  81. ignition!!!!!!!!
  82. 4.9 liter--replacing heater core "hoses".
  83. 1982 Deville check engine light
  84. Cruise Control Problem!!
  85. anyone know tps ranges
  86. stripped head bolt please help!!!!!
  87. 1992 Deville fails NOx emissions test
  88. Question Regarding '85 Eldo TPS Fix???
  89. Water Pump Inlet Repair help
  90. I'm afraid to buy these cars ....
  91. Another question - 89 Seville air conditioning leak
  92. 1989 Seville code E13 Oxygen sensor not ready
  93. 1987 - 1989 Fan Control Module
  94. 85 Seville HT4100
  95. How common is this?
  96. deville 4.5 and gm taps
  97. question engine deville 4.5
  98. 4.9 Unstable Idle
  99. torque converter portability
  100. 4.5 High Rev
  101. Oil Feed Pipe o-ring
  102. side gaped spark plugs on a 4.x
  103. 1994 Cadillac Deville,4.9L
  104. 4.9 reverse flow cooling
  105. 4.9L '93 Seville: How do I replace the pickup coil?
  106. All oil gaskets/seals on engine RH side
  107. 4.5 comparied to a 4.9
  108. Th-th-th-that's all folks!
  109. HT 4100 4.1 motor problems - giving up
  110. Power Steering Pum Removal on 4.9
  111. car took a dump today
  112. sings of a head gasket falure in a 4.5
  113. 4.5L engine runs rough
  114. Fuel Injection Cleaning?
  115. Fan Belt Upside Down on Ebay Car?
  116. 92 Cadillac Eldo AC Leak near the fire wall
  117. 4.9l Rpm
  118. 4.9 RWD 5 speed
  119. Can anyone interpert this A/C gauge reading??
  120. clamp-down dist caps
  121. In need of some numbers....
  122. Throttle body spacers on a 4.? engine
  123. HT4100 SES light @ low RPM, much stalling & near stalling
  124. 1992 4.9 injector replacement
  125. Need wiring diagrams.
  126. A/C refrig. temp. sensor question?
  127. Cannot getg into E.6.3 ISC Motor
  128. Sedan Deville 4.1 to 4.5 Disaster Swap “This time I’ll get right”
  129. Pain at the pump and the inspectors
  130. Your advice on the HT 4100 needed/appreciated
  131. 4.9L coolant leak
  132. high output alternator
  133. Have to pump gas pedal to get it to start, then it runs fine??
  134. 4.1 Spark Plug Wires Problem Solved (Maybe)
  135. Weak Battery + Hot Engine - Bad Alternator?
  136. Plug Gap on 4.9L??? (also Bosch Injector Question)
  137. where are the major grounding straps?
  138. I Have Codes... Can anyone interpret?
  139. "illumina" and other Gurus
  140. Fuel Type?
  141. 91 Deville Distributor Coil wiring diagram
  142. Head gasket maybe but hope not!
  143. 4.9 has irratic idle can you help
  144. '86 DeVille rear main seal
  145. where is this supposed to connect
  146. last problem with HT4100 (I hope)
  147. 92 Deville, accelerated on it's own. Friend kinda fixed it but now..
  148. 1991 Seville 4.9L Engine Stumble (TECH PLEASE)
  149. New throttle position sensor?
  150. New Transmission Fluid and Filter
  151. engine pinging off the line?
  152. radiator 1983 Eldorado refurb?
  153. 4.9 ticking when cold
  154. Stop Engine - Oil Light on 1988 4.5L V8
  155. 93 Started, now can't keep belt on
  156. engine pinging???
  157. no chime? cant' open gas lid?
  158. think these are the same parts?
  159. 4.5 Computer Tachometer
  160. Air cleaner cold start door
  161. The Surge - in my 4.9, not Iraq...
  162. 4.9 switched to 87 oct., hard starts, re-time?
  163. 92 deville sound at engine starts and stops
  164. 93 SD 4.9 Gurgling back into the overflow tank
  165. When you buy a remain. ecm, does it come already flashed?
  166. 93 Won't Start
  167. 93 Seville 4.9-Crank position sensor location?
  168. '93 Eldorado - Relays - ELC System
  169. Got new plugs/wires installed on 4.9 today.
  170. 93 deville "CHUNKing" while reved in park or nuetral.
  171. cost of tps
  172. latest 4.1 repairs
  173. 91 Caddy DeVille Sedan Belt
  174. 82 deville tranny problems
  175. 4.1 Question
  176. 1984 Fleetwood 4.1
  177. Trouble codes?
  178. I need a new throttle body
  179. 4.9 timing chain replacement ?
  180. Popular car... at the junkyard
  181. 4.9 swap
  182. Code E26 and E27
  183. 4100? worth rebuilding
  184. Need help finding power steering bracket
  185. 4.1 dampener pulley bolt
  186. ht4100- stop engine-oil pressure light flickers
  187. "The Cadillac 4.1 liter engine is beyond hope for this formula"
  188. 94 Deville won't start
  189. '94 Deville 4.9l torque conv. clutch prob?
  190. 1986 Eldorado stalls under stress
  191. 4.9's torque
  192. Right the wrongs in a 4.1 (4100)
  193. 4.9 engine
  194. 4.9 liter vanity cover removal.
  195. The Mythical 4.9 performance Chip
  196. 4.5 Liter - Last chance before I need to give it up.
  197. Possible ECM problem
  198. Got mother's 1985 Fleetwood Brougham with HT4100
  199. Member 92 Seville 89 - Old Threads
  200. Water Pump Tasks ahead
  201. wont start cold
  202. egr question
  203. Problem of the day :)
  204. 2002 DTS trouble
  205. 250 or 252?
  206. 4.9 isc adjustment: Thanks Ranger
  207. 4.5 engine swap
  208. Hall Effect
  209. How do you get to the back of the FDC
  210. 4100 RWD replacement source
  211. mechanical water temp guage
  212. deck height and bore spacing
  213. 88 4.5L Running rough
  214. 90 eldo-possible tranny issue and engine issue
  215. Exhaust Muffler
  216. 4.9 litre--flat tappet engine?
  217. 4.1 to 4.5
  218. New to Throttle Body Injection?
  219. Haynes or Chiltons
  220. 4100 Updated intake gasket set
  221. '93 Eldorado, 4.9L - Partial Fire, No Start
  222. How do you clean 4.5 throttle body?
  223. oil change
  224. Crazy Coolant Temperatures
  225. Mustard like substance in radiator
  226. Help my 91 cadilliac deville 4.9
  227. Two Problems Not Starting and Stalling
  228. 4.9 water pump
  229. Broken Upper Radiator Hose Connector
  230. 1994 Sedan Deville questions...
  231. Piston 6 hits sparkplug - Bad timing
  232. Coupe Deville 4.5 Rough Running
  233. new and need some help please!!!!!
  234. What should I do, buy or walk? 89 Coupe Deville
  235. E20 - Open Fuel Pump Circut Feedback Signal
  236. 4.1 Running Bad Again
  237. 4.5 Allante Intake on a 4.9 Eldorado
  238. heat issues!!!!
  239. Need Help ASAP!!!!!!
  240. Lound thump when shutting off engine, then no restart
  241. 4.9 Oil Filter ??
  242. 4.9 and spark knock
  243. I really need help, please!
  244. will my 4.9 fit?
  245. I'm going to try the 4.1->4.9 conversion
  246. 1986 cadillac Stalling up hills, need help ASAP
  247. Case of the Evil Tranny
  248. Question when torquing headbolts 4.9L
  249. Synthetic oil no no in 4100
  250. New brain wracking symptom...