: HT4100 4.1, 4.5, 4.9



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