: HT4100 4.1, 4.5, 4.9



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