: HT4100 4.1, 4.5, 4.9



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