: HT4100 4.1, 4.5, 4.9



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  1. Heater Core Removal 83 Eldorado
  2. 91 deville needs head gasket
  3. Sluggish acceleration
  4. 93 Eldorado clunking under load
  5. 4.1 just cuts out then comes back
  6. Oil pan gasket: Is it worth it?
  7. 4x engine as boat power?
  8. Cat converter exhaust flange
  9. Cooling system sealant
  10. 1983 4.1, 6 mpg in town driving ????
  11. 4.9 Headgasket ?
  12. E13, e44
  13. Help w/ Temp Fan Light on '85 Deville
  14. 15w-40 too heavy for a 61k mile 4.5?
  15. Operating temp: Whats the norm?
  16. The Last Stretch:Tranny Mods.
  17. timing marks
  18. Distributor Wiring Harness Compatability?
  19. Going from conventional to Synthetic - Good or bad?
  20. E46 code
  21. E98?
  22. 4.9 Lifespan?
  23. Return Line Pressure?
  24. 92 seville 4.9L engine problem
  25. alternator question
  26. Odd "Cold" Idle
  27. Rotten 4.1 do they just normally overheat ???
  28. Starter Change
  29. 83 Eldorado No power to HVAC controls or Mileage calculator
  30. Cam position sensor replacement
  31. A.L.D.L connector, setting timing
  32. The 93 SDV is dead!
  33. 1989 Seville Transmission shifts - Vac Modulator?
  34. thinking about 1994 Sedan deville
  35. Will there be a mess
  36. 1990 Eldorado runs ruff
  37. The 6 flexplate to crankshaft bolts
  38. Coolant
  39. Well, found one of my oil leaks...
  40. 92 Deville Shuts of suddenly
  41. Exhaust manifold gasket set
  42. Fuel Pump Cheat?
  43. 1995 Devile 4.9 Oil Leak
  44. Found my oil-leak
  45. Check this guy out: 91 Seville with 'questionable' mods
  46. Hose substution
  47. Thermostat
  48. Which of these?
  49. New Performance 4.9 Injector Mod. and Adjustable Fuel Pressure Regulator
  50. 1994 Cadillac Deville High Idle
  51. 91 deville, dead miss
  52. heater controls 92 eldo.
  53. How many tablets or bars leak?
  54. Distributor Help
  55. Proper Spark Plug Gap for 4.5
  56. 1990 Deville 4.5 help
  57. Yes, I Did It
  58. Harmonic Balance
  59. ECM Swap! PASSkey Question...
  60. Accel Performance Ignition Module: Real or B/S?
  61. 4100 engine temperature
  62. '90 4.5 No Cam Sensor Reference Signal Journey Through Hell!
  63. Ongoing Issues, running rough poor idle
  64. Trans cooler flush
  65. screw the whole thing - i hate the 4100... swap ideas?
  66. oil sender location - 4.1
  67. code po23??? Any thoughts
  68. 4.9 exhaust info
  69. Throttle valve cable '85
  70. oil pressure light came on - towed home
  71. clackin noise 4.9 deville
  72. Oil-leak solved!
  73. WOW this is a 4.9
  74. PO48 Current/ EGR Fault
  75. Oil Pressure
  76. E98 code on 4.5
  77. ...the HG gremlin got me
  78. Help identify 4.9 engine noise (video included)
  79. Head Gasket 91 caddy
  80. Once again......no joy
  81. BCM Location?
  82. Oil-tube gasket & o-ring
  83. 84 cdv 4100
  84. Question on oil leak - 1989 Seville
  85. No Joy....
  86. RTV on Oil-Pan gasket
  87. Block number?
  88. One problem fixed another shows up. Starter
  89. 4.9 Software
  90. How do I bypass PASKEY
  91. Rough running, bad mileage, unstable idle
  92. Trouble Starting When Warm
  93. Clattering noise from engine front area
  94. What is this hose called???
  95. 83 Eldorado 4.1 auto OD Trans Model # Please
  96. 1986 deville 4.1L
  97. Sedan Deville 4.1 to 4.5 Disaster Swap “This time I got right” part 2
  98. 89 Seville ignition switch click - VATS?
  99. Which a/c compressor to buy for round 4...advice please
  100. Carnut, got it to work, Thanks !
  101. wont start when warm
  102. B336 code, 86 seville
  103. transmission parts and specks
  104. Transmission advice
  105. 4.5-4.9 less inclined for h.g. problems
  106. Transmission Cooler Lines
  107. Severs Idle Problem
  108. 83 Eldo 4.1 Hesitation upon accelleration
  109. Coolant Change and GM Sealant Questions
  110. 95 DeVille PCM Codes
  111. Cleaning an ISC motor from a 1989 Seville
  112. Water in oil - Head/intake maniforld gasket job
  113. Loud bang, car won't turn over. 4100 '82 Deville
  114. Coolant Leak
  115. A/C Compressor Clutch Engagement Issues
  116. 83 Eldo 4.1 Climate Control only lights sometimes
  117. 1989 Deville code help
  118. 1989 Deville code help
  119. 83 4.1 overheated, now, an ISC problem !
  120. car doesn't switch to 3rd gear
  121. Performance 4.9
  122. New Life
  123. 92 Deville 4.9 FPR
  124. plug wire routing conduit/loom
  125. Alternator Pulley
  126. 88 Sedan Deville 4.5L intermittently starts, sometimes dies driving
  127. gear indicator fault :(
  128. 4100 Fuel Problem - Advice Please...
  129. A/C Bypass Belt for 4.5L w/Calif Emissions
  130. i need advice from a tech!!!!!!
  131. HELP! 4.9 Missing and Dist. cap clicking!
  132. 85 eldo 4.1
  133. ht 4100 crankshaft flange 9Harmonic balancer) removal tool?
  134. Mystery drainage of radiator?
  135. Finally replacing 4.9 main bearings
  136. 4.9l stumble
  137. my 4.1 compression numbers
  138. A/C Bypass belt length for 4.9
  139. engine stopped while driving on highway, inside temp not right
  140. The worst gas miliage ever
  141. 86 Seville, 4.1, low idle in drive
  142. electrical diagram needed ASAP
  143. 4.5 questions
  144. 4.5 Miss under full throttle
  145. Reverse slipping?
  146. ignition!!!!!!!!
  147. 4.9 liter--replacing heater core "hoses".
  148. 1982 Deville check engine light
  149. Cruise Control Problem!!
  150. anyone know tps ranges
  151. stripped head bolt please help!!!!!
  152. 1992 Deville fails NOx emissions test
  153. Question Regarding '85 Eldo TPS Fix???
  154. Water Pump Inlet Repair help
  155. I'm afraid to buy these cars ....
  156. Another question - 89 Seville air conditioning leak
  157. 1989 Seville code E13 Oxygen sensor not ready
  158. 1987 - 1989 Fan Control Module
  159. 85 Seville HT4100
  160. How common is this?
  161. deville 4.5 and gm taps
  162. question engine deville 4.5
  163. 4.9 Unstable Idle
  164. torque converter portability
  165. 4.5 High Rev
  166. Oil Feed Pipe o-ring
  167. side gaped spark plugs on a 4.x
  168. 1994 Cadillac Deville,4.9L
  169. 4.9 reverse flow cooling
  170. 4.9L '93 Seville: How do I replace the pickup coil?
  171. All oil gaskets/seals on engine RH side
  172. 4.5 comparied to a 4.9
  173. Th-th-th-that's all folks!
  174. HT 4100 4.1 motor problems - giving up
  175. Power Steering Pum Removal on 4.9
  176. car took a dump today
  177. sings of a head gasket falure in a 4.5
  178. 4.5L engine runs rough
  179. Fuel Injection Cleaning?
  180. Fan Belt Upside Down on Ebay Car?
  181. 92 Cadillac Eldo AC Leak near the fire wall
  182. 4.9l Rpm
  183. 4.9 RWD 5 speed
  184. Can anyone interpert this A/C gauge reading??
  185. clamp-down dist caps
  186. In need of some numbers....
  187. Throttle body spacers on a 4.? engine
  188. HT4100 SES light @ low RPM, much stalling & near stalling
  189. 1992 4.9 injector replacement
  190. Need wiring diagrams.
  191. A/C refrig. temp. sensor question?
  192. Cannot getg into E.6.3 ISC Motor
  193. Sedan Deville 4.1 to 4.5 Disaster Swap “This time I’ll get right”
  194. Pain at the pump and the inspectors
  195. Your advice on the HT 4100 needed/appreciated
  196. 4.9L coolant leak
  197. high output alternator
  198. Have to pump gas pedal to get it to start, then it runs fine??
  199. 4.1 Spark Plug Wires Problem Solved (Maybe)
  200. Weak Battery + Hot Engine - Bad Alternator?
  201. Plug Gap on 4.9L??? (also Bosch Injector Question)
  202. where are the major grounding straps?
  203. I Have Codes... Can anyone interpret?
  204. "illumina" and other Gurus
  205. Fuel Type?
  206. 91 Deville Distributor Coil wiring diagram
  207. Head gasket maybe but hope not!
  208. 4.9 has irratic idle can you help
  209. '86 DeVille rear main seal
  210. where is this supposed to connect
  211. last problem with HT4100 (I hope)
  212. 92 Deville, accelerated on it's own. Friend kinda fixed it but now..
  213. 1991 Seville 4.9L Engine Stumble (TECH PLEASE)
  214. New throttle position sensor?
  215. New Transmission Fluid and Filter
  216. engine pinging off the line?
  217. radiator 1983 Eldorado refurb?
  218. 4.9 ticking when cold
  219. Stop Engine - Oil Light on 1988 4.5L V8
  220. 93 Started, now can't keep belt on
  221. engine pinging???
  222. no chime? cant' open gas lid?
  223. think these are the same parts?
  224. 4.5 Computer Tachometer
  225. Air cleaner cold start door
  226. The Surge - in my 4.9, not Iraq...
  227. 4.9 switched to 87 oct., hard starts, re-time?
  228. 92 deville sound at engine starts and stops
  229. 93 SD 4.9 Gurgling back into the overflow tank
  230. When you buy a remain. ecm, does it come already flashed?
  231. 93 Won't Start
  232. 93 Seville 4.9-Crank position sensor location?
  233. '93 Eldorado - Relays - ELC System
  234. Got new plugs/wires installed on 4.9 today.
  235. 93 deville "CHUNKing" while reved in park or nuetral.
  236. cost of tps
  237. latest 4.1 repairs
  238. 91 Caddy DeVille Sedan Belt
  239. 82 deville tranny problems
  240. 4.1 Question
  241. 1984 Fleetwood 4.1
  242. Trouble codes?
  243. I need a new throttle body
  244. 4.9 timing chain replacement ?
  245. Popular car... at the junkyard
  246. 4.9 swap
  247. Code E26 and E27
  248. 4100? worth rebuilding
  249. Need help finding power steering bracket
  250. 4.1 dampener pulley bolt