: HT4100 4.1, 4.5, 4.9



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  1. Fuel Issues - Please Help!
  2. 4t60-E FDR and the computer
  3. Fixed my car! Need help on one more thing...
  4. What's wrong with my car? The mystery continues...
  5. When i go to replace the mains....
  6. 4t60-E Shudder?
  7. last year
  8. All 4.x engine service parts are discontinued?
  9. Does anybody have a spare 4.9?
  10. Knock, Knock, Knock, 4.9L
  11. Alright, i'm going in!! I need a few parts and info please.
  12. 90 4.5L Idle Learn Procedure?
  13. I have a slight problem,,, HT4100
  14. Fuel Pressure Test Fitting
  15. 1985 Seville code e15
  16. Cooling Fan Module--Where can I get one?
  17. Bars Leaks Head Gasket Repair
  18. Code E30 on 85 Deville and Vacuum Pumps
  19. Copper Gaskets?
  20. Battery/ALternator area cracking noise?
  21. Oil Analysis: Proof is in the results
  22. 1992 Eldo
  23. That Funky Emissions Tubing
  24. Hey Guys long time no chat, and long time not wanting to start either.
  25. The once a year survival kit for the 4.X series
  26. 4.9 runs rough black exhaust from tail pipe
  27. 1985 Seville harsh shifting tranny
  28. Odd brief buzzing noise from undercarriage
  29. i need a 4t60e guru; i am hating mine
  30. what is up with my car
  31. Early vs. Late 1985 FWD 4100
  32. Strange ISC
  33. 1994 cadillac deville engine knocks when warm
  34. 4.5 --> 4.9
  35. Getting ready for water pump removal
  36. 1988 Eldorado 4.5
  37. 1985 FWD HT4100 Running rough
  38. Question about spark plugs!
  39. TPS problem?
  40. 4100 Mpg
  41. 87 deville 4100 shift problems
  42. 1991 DeVille Speedometer/Transmission Trouble.
  43. Starter solenoid replacement
  44. 4.9 Injector Replacement Questions
  45. 92 STS error code A048 what does that mean?
  46. 1994 Deville 4.9 Idler pulleys
  47. Please Help!!! Rough running 4.9 , Help!!
  48. 1994 Deville 4.9 spark knock
  49. 85 Sedan Deville Stalls after 20 Miles
  50. 4.9 Potential? (Split from "4.9 to a 5.0?")
  51. 94 Deville 4.9 switching complete sending/fuel pumps
  52. 4.9 to a 5.0?
  53. Fan Runs all the time on 4.9, engine runs real cold
  54. AHHH HELP!!! Keep overheating
  55. 4.5 Vs. 4.9
  56. Fuel Mileage vs. Data Center
  57. 92 4.9 flat cam?
  58. Does twitchy tach mean misfire?
  59. ht 4100 Hesitation
  60. 1987 SDV 4.1 L V-8 Available
  61. 89 4.5 TPS installations
  62. 89 Fleetword code (30) ISC Circuit
  63. Boiling coolant, fans not running, ...
  64. no start after warm engine
  65. 1989 4.5 Idle Speed Motor
  66. 1989 Fleetwood Idle Speed Motor
  67. Valve Adjustment 4.9 Engine
  68. remaned 4.1/4.5 short block
  69. 4100 to LT1 swap 83 Coupe Deville
  70. Cylinder head removal
  71. Very poor MPG 1992 Deville ?? HELP!!??!!
  72. turn your 4.9 into a performance engine
  73. engine system fault E046
  74. Take a look at this.
  75. 4.9 exhaust manifold crack, common?
  76. 4.9 changes by year??
  77. 1994 Sedan deville 4.9L Stalls Well Driving Part 2
  78. what did i blow up? pics
  79. Just done the head gasket, think i may have messed it, help.
  80. 4.5 intake manifold on 87 4.1?
  81. 85 eldo ht4100 backfire, miss, stall
  82. Reman. Engine/Trans. What's the best company?
  83. 88 DeVille fan continues to run after I turn it off
  84. New Shell Rotella T with triple protection
  85. error codes
  86. '85 Seville 4.1L engine missing after tune-up.
  87. Help me! What is it?
  88. 93 DeVille Idle Problem
  89. 4.9 coolant flush and fill procedure!
  90. What do I need to know about the HT4100 Engine?
  91. Results of my Emissions Test
  92. Need help 91 Deville
  93. What should engine timing be when not in Timing Mode (25 degree BTDC?)
  94. Question having to do with the 4.9
  95. Simple rotor/distib cap question
  96. HT4100 85 Eldo. Header Issue
  97. Fuel Injector Replacement Tips
  98. clickinggg....
  99. No spark on '90 4.5 Seville
  100. computer accuracy
  101. Do I have to use a new A/C comp. or can I use a reman?
  102. 4.5 intake gasket replacement
  103. Life expectancy for 4.9 and 4T60E
  104. plug stuck in head
  105. Aluminum Heads?
  106. 2002 DeVille DTS maintenance
  107. ignition problems..
  108. Not a new problem
  109. I have a question, someone please explain.
  110. 91 Sedan Deville Gas Mileage ...
  111. 1990 deville hesitates
  112. Great, now I have MORE trouble codes!! E91 and E98
  113. 1994 Sedan deville 4.9L Stalls/dies well driving
  114. PCM Programming for 4.5L V8?
  115. Trouble Code E48 "EGR System Problem"....what exactly is it.
  116. 223-232f
  117. Trying to beat the heat....
  118. STP Fuel Injector Cleaner--it works!
  119. A starting we will go...
  120. 1990 deville 4.5 trouble code air management fault?
  121. 88 deville broke down need help
  122. ? easy way to remove 4.9 @ self serv yard?
  123. Sound like the egr to you guys?
  124. Trouble clearing codes
  125. 4.9 Bearing Thump--Who's Got It?
  126. When to replace O2 sensor?
  127. '92 deVille..surging, stuttering, stalling???
  128. 91 deville fuel injectors......
  129. motor rattle
  130. My car's 'puter done gone got brokeded (92 Eldo 4.9)
  131. 92 deville egr tubes ??
  132. 92' Deville Alternator/power Problem
  133. Changing TPS on 1993 Eldo 4.9
  134. O2S Help Please!
  135. Dead Cylinder - OH NOOOOOO!!!!
  136. A/C Hose Insulation Source
  137. Want your ISC problems solved? Look here...
  138. hmm, how do I get to that A/C compressor clutch?
  139. STOP ENGINE TEMP light problem.
  140. Brake light problem.
  141. Charge Battery Light On (No Codes) !!
  142. A Little help guys, please
  143. Green plug?
  144. How to check timing on an '85 Seville?
  145. No fuel pressure when ignition on, engine off
  146. 90 deville backfiring and running rough?
  147. 4.9 Eldorado Plugs/Wires install question
  148. Accel Wires
  149. Simple question
  150. 87 SDV E30 code
  151. 90 deville misfire
  152. Electrical problem + codes
  153. bad coolant leak: deville 4.5
  154. 1990 fleetwood won't run right - help
  155. 91 Deville 4.9 misses when hot outside
  156. 92 Deville throwing MAP codes, heats up and conks out.
  157. Cooling fans/AC problem
  158. Mufflers Bottom Line?
  159. 1993 Seville w/ 4.9L P041 Code
  160. HT4900 (4.9) Exhaust Manifold Interchangeability
  161. 94 Deville, odd noise and stalling now. Pics attached.
  162. Coolant Leak
  163. bad coolant leak: deville 4.5
  164. hesitation and backfire 4100
  165. 90 Coupe Deville engine problems
  166. 1990 deville hard stall on idle
  167. Cone Filter & Cold Air Intake
  168. Rough runing, missing?
  169. isc/driveability
  170. spudder of some sort
  171. 91 4.9 Runs Rich and Gas Mileage Question
  172. Hey Guys, Long time no chat, and need some input on a non input vss signal. Blew.....
  173. OLDS 350 swap
  174. 1984 eldo some new problems
  175. 4.9 EGR Removal???
  176. Recommended Spark Plugs
  177. 4.9 Running Rough...
  178. problem solved
  179. Changing Oil To Synthetic?
  180. 4.9 performance
  181. 4100 transmission
  182. Coolant System
  183. ECM says my MAT sensor is bad.
  184. Adjusting the timing
  185. PCM codes
  186. Deisel noise around 2000 rpm's
  187. Still having problems on 93 sedandeville
  188. Now im getting worried!
  189. 4100 Flowmaster 80 series VIDEOS
  190. First Car, 4.9 Eldorado. Performance Upgrades HELP? (car-noob)
  191. Cold Air Intake?
  192. 4.1 codes
  193. Helicoil vs Timesert on non N* (4.1, 4.5, 4.9)
  194. Cadillac 4.9 Head Gasket Photos
  195. Where to get Exhaust Manifold Studs
  196. Do your own oil changes.
  197. Ping Ping Go Away!!!
  198. F48
  199. 1985 Seville 4100
  200. Running fuel injector cleaner through your gas tank
  201. Cleaning the throttle body plates!
  202. Post your average MPG
  203. 1984 Throttle body need help, please.
  204. Why is my caddy over heating ?
  205. Poor mpg on 93 sedandeville
  206. Squeeking Noise!
  207. Rwd/fwd Ht4100
  208. TRANS ID'ing
  209. HT4100 Check In
  210. 15W40 delco with GM oil supplement
  211. Performance transmission rebuild...
  212. 4.5 L tranny bolt pattern
  213. isc motor re-learn
  214. 4.9 Extremely rough running issue
  215. Stripped Head Bolt Hole Where Do I Get Helicoil?
  216. engine swap 4100 to 305 chevy
  217. 1984 Cadillac - 4100 firing order and distributor rotation
  218. '92 Eldo Problems
  219. overheating, now power, 83 coupe deville ht4100
  220. Whats the brown stuff on my valves?
  221. Doing My 4.9 Head Gasket Looking for Advice on Parts
  222. ecm replacement
  223. Recommended sealant for water pump gasket on 91 deville
  224. What do i coat the head bolts with?
  225. Bad Map on 91 Deville?
  226. 4.9 or northstar?? which has less problems??
  227. Amsoil test results
  228. 91 Seville Overheat
  229. Are Head Bolts T.t.y Or Not (conflicting Answers)???????
  230. Iron heads
  231. ??? ???E30 isc code??? ???
  232. Got rusty tubes?
  233. Squealing under hood when cold
  234. What is this?????
  235. Noise at EGR conditions
  236. '90 DeVille has high NOX at low speed, failed smog. Some help needed.
  237. exhaust ideas
  238. 1990 fleetwood won't run right - help
  239. 89 deville stumble/miss on acceleration
  240. Diagnostic Mode
  241. Curious Fuel Pump Behavior
  242. Cooling fan fault
  243. High Idle. ISC? Need Advice!!!!
  244. 92 STS Engine Trouble
  245. head gasket, intake gasket or what?
  246. Engine RPM.... is this normal?
  247. 91 Eldorado No Crank B334 code system problem
  248. E67!!!!!! how do i fix
  249. Video of my 4.9 5spd in Action.
  250. broke water pump on my 88!