: HT4100 4.1, 4.5, 4.9



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  1. engine oil cooler lines
  2. Smoke out of exhaust
  3. Cleaned out my EGR tubes today, my E.4.8 code is gone!
  4. code help
  5. Low mileage 4.9 Idling Rough Engine Sputters and quits
  6. First time Caddy owner needs some advice please
  7. Trouble with diagnostics
  8. changing oil pump in 90 deville 4.5
  9. Help I dont want to get rid of my car BUT!
  10. Has anyone changed their catalytic converter?
  11. 4.9 Liter idle
  12. Removing hydraulic fittings
  13. How many miles on the 4.9? ?
  14. 88 Sedan Deville not liking the winter
  15. Coolant hose to blower motor
  16. Timing Question
  17. '84 Eldorado blown head gasket?
  18. Oil pan heater?
  19. 4.9 Deville 95 whining noise like supercharger..
  20. Location of the CAM Position Sensor on the 95 4.9L deville?
  21. YES, i did it!!! All went well!
  22. 92 Eldo 4.9 for sale
  23. 4.5 water pump
  24. 93 4.9 STS wont start
  25. DESPERATELY Need Help!!! 85 CDV
  26. Trying to find good price on Allante gear reduction to use on my 4.9
  27. How to clean out EGR valves and throttle body?
  28. time for engine replacement soon-- help!
  29. Heater
  30. Hard starting
  31. 4.5 differences
  32. E98 rectification
  33. 87 fleetwood new ignition problem
  34. 1985 deville 4.1 Injector fuse keeps blowing
  35. PCM override, PS10
  36. EGR solenoid, is it normal?
  37. Get a LARGER capacity, 3 row radiator?
  38. Smoky when at full throttle!
  39. What does the code F.8.5 mean?
  40. 87 fleetwood 4.1 three problems,advice please!
  41. Removed Distributor--Question Before I Restart
  42. Changed the oil pump, lifter still taps on occasion warmed up..
  43. 87 deville, E48, EGR system problem
  44. Additive for newly remaned 86 DeVille Trans??
  45. Is it possible for a 4.9 main bearing thump to get progressively worse?
  46. 1989 Sedandeville issues
  47. 15W-40 Oil .....
  48. Fuel
  49. 82 eldorado alternator bracket
  50. 85 Deville ISC Problem--Might Have the Answer
  51. Help me Please!!!
  52. Weird idea
  53. Engine miss
  54. Pulled a thread
  55. E12 - No Distributor Signal???
  56. computer interchange, '90 Seville?
  57. Where Can I get some chips......
  58. Oil leak source...?
  59. well, i did it but...
  60. HT4100 ECM/BCM Problem?!
  61. #$$%^%@#$% damn .....floods on hot restart
  62. can't flush out "rubber glue type" coolant additive... what to do?
  63. Transmission Shift cable
  64. HT4100 ISC Help
  65. 4t60-E going out
  66. Fuel Issues - Please Help!
  67. 4t60-E FDR and the computer
  68. Fixed my car! Need help on one more thing...
  69. What's wrong with my car? The mystery continues...
  70. When i go to replace the mains....
  71. 4t60-E Shudder?
  72. last year
  73. All 4.x engine service parts are discontinued?
  74. Does anybody have a spare 4.9?
  75. Knock, Knock, Knock, 4.9L
  76. Alright, i'm going in!! I need a few parts and info please.
  77. 90 4.5L Idle Learn Procedure?
  78. I have a slight problem,,, HT4100
  79. Fuel Pressure Test Fitting
  80. 1985 Seville code e15
  81. Cooling Fan Module--Where can I get one?
  82. Bars Leaks Head Gasket Repair
  83. Code E30 on 85 Deville and Vacuum Pumps
  84. Copper Gaskets?
  85. Battery/ALternator area cracking noise?
  86. Oil Analysis: Proof is in the results
  87. 1992 Eldo
  88. That Funky Emissions Tubing
  89. Hey Guys long time no chat, and long time not wanting to start either.
  90. The once a year survival kit for the 4.X series
  91. 4.9 runs rough black exhaust from tail pipe
  92. 1985 Seville harsh shifting tranny
  93. Odd brief buzzing noise from undercarriage
  94. i need a 4t60e guru; i am hating mine
  95. what is up with my car
  96. Early vs. Late 1985 FWD 4100
  97. Strange ISC
  98. 1994 cadillac deville engine knocks when warm
  99. 4.5 --> 4.9
  100. Getting ready for water pump removal
  101. 1988 Eldorado 4.5
  102. 1985 FWD HT4100 Running rough
  103. Question about spark plugs!
  104. TPS problem?
  105. 4100 Mpg
  106. 87 deville 4100 shift problems
  107. 1991 DeVille Speedometer/Transmission Trouble.
  108. Starter solenoid replacement
  109. 4.9 Injector Replacement Questions
  110. 92 STS error code A048 what does that mean?
  111. 1994 Deville 4.9 Idler pulleys
  112. Please Help!!! Rough running 4.9 , Help!!
  113. 1994 Deville 4.9 spark knock
  114. 85 Sedan Deville Stalls after 20 Miles
  115. 4.9 Potential? (Split from "4.9 to a 5.0?")
  116. 94 Deville 4.9 switching complete sending/fuel pumps
  117. 4.9 to a 5.0?
  118. Fan Runs all the time on 4.9, engine runs real cold
  119. AHHH HELP!!! Keep overheating
  120. 4.5 Vs. 4.9
  121. Fuel Mileage vs. Data Center
  122. 92 4.9 flat cam?
  123. Does twitchy tach mean misfire?
  124. ht 4100 Hesitation
  125. 1987 SDV 4.1 L V-8 Available
  126. 89 4.5 TPS installations
  127. 89 Fleetword code (30) ISC Circuit
  128. Boiling coolant, fans not running, ...
  129. no start after warm engine
  130. 1989 4.5 Idle Speed Motor
  131. 1989 Fleetwood Idle Speed Motor
  132. Valve Adjustment 4.9 Engine
  133. remaned 4.1/4.5 short block
  134. 4100 to LT1 swap 83 Coupe Deville
  135. Cylinder head removal
  136. Very poor MPG 1992 Deville ?? HELP!!??!!
  137. turn your 4.9 into a performance engine
  138. engine system fault E046
  139. Take a look at this.
  140. 4.9 exhaust manifold crack, common?
  141. 4.9 changes by year??
  142. 1994 Sedan deville 4.9L Stalls Well Driving Part 2
  143. what did i blow up? pics
  144. Just done the head gasket, think i may have messed it, help.
  145. 4.5 intake manifold on 87 4.1?
  146. 85 eldo ht4100 backfire, miss, stall
  147. Reman. Engine/Trans. What's the best company?
  148. 88 DeVille fan continues to run after I turn it off
  149. New Shell Rotella T with triple protection
  150. error codes
  151. '85 Seville 4.1L engine missing after tune-up.
  152. Help me! What is it?
  153. 93 DeVille Idle Problem
  154. 4.9 coolant flush and fill procedure!
  155. What do I need to know about the HT4100 Engine?
  156. Results of my Emissions Test
  157. Need help 91 Deville
  158. What should engine timing be when not in Timing Mode (25 degree BTDC?)
  159. Question having to do with the 4.9
  160. Simple rotor/distib cap question
  161. HT4100 85 Eldo. Header Issue
  162. Fuel Injector Replacement Tips
  163. clickinggg....
  164. No spark on '90 4.5 Seville
  165. computer accuracy
  166. Do I have to use a new A/C comp. or can I use a reman?
  167. 4.5 intake gasket replacement
  168. Life expectancy for 4.9 and 4T60E
  169. plug stuck in head
  170. Aluminum Heads?
  171. 2002 DeVille DTS maintenance
  172. ignition problems..
  173. Not a new problem
  174. I have a question, someone please explain.
  175. 91 Sedan Deville Gas Mileage ...
  176. 1990 deville hesitates
  177. Great, now I have MORE trouble codes!! E91 and E98
  178. 1994 Sedan deville 4.9L Stalls/dies well driving
  179. PCM Programming for 4.5L V8?
  180. Trouble Code E48 "EGR System Problem"....what exactly is it.
  181. 223-232f
  182. Trying to beat the heat....
  183. STP Fuel Injector Cleaner--it works!
  184. A starting we will go...
  185. 1990 deville 4.5 trouble code air management fault?
  186. 88 deville broke down need help
  187. ? easy way to remove 4.9 @ self serv yard?
  188. Sound like the egr to you guys?
  189. Trouble clearing codes
  190. 4.9 Bearing Thump--Who's Got It?
  191. When to replace O2 sensor?
  192. '92 deVille..surging, stuttering, stalling???
  193. 91 deville fuel injectors......
  194. motor rattle
  195. My car's 'puter done gone got brokeded (92 Eldo 4.9)
  196. 92 deville egr tubes ??
  197. 92' Deville Alternator/power Problem
  198. Changing TPS on 1993 Eldo 4.9
  199. O2S Help Please!
  200. Dead Cylinder - OH NOOOOOO!!!!
  201. A/C Hose Insulation Source
  202. Want your ISC problems solved? Look here...
  203. hmm, how do I get to that A/C compressor clutch?
  204. STOP ENGINE TEMP light problem.
  205. Brake light problem.
  206. Charge Battery Light On (No Codes) !!
  207. A Little help guys, please
  208. Green plug?
  209. How to check timing on an '85 Seville?
  210. No fuel pressure when ignition on, engine off
  211. 90 deville backfiring and running rough?
  212. 4.9 Eldorado Plugs/Wires install question
  213. Accel Wires
  214. Simple question
  215. 87 SDV E30 code
  216. 90 deville misfire
  217. Electrical problem + codes
  218. bad coolant leak: deville 4.5
  219. 1990 fleetwood won't run right - help
  220. 91 Deville 4.9 misses when hot outside
  221. 92 Deville throwing MAP codes, heats up and conks out.
  222. Cooling fans/AC problem
  223. Mufflers Bottom Line?
  224. 1993 Seville w/ 4.9L P041 Code
  225. HT4900 (4.9) Exhaust Manifold Interchangeability
  226. 94 Deville, odd noise and stalling now. Pics attached.
  227. Coolant Leak
  228. bad coolant leak: deville 4.5
  229. hesitation and backfire 4100
  230. 90 Coupe Deville engine problems
  231. 1990 deville hard stall on idle
  232. Cone Filter & Cold Air Intake
  233. Rough runing, missing?
  234. isc/driveability
  235. spudder of some sort
  236. 91 4.9 Runs Rich and Gas Mileage Question
  237. Hey Guys, Long time no chat, and need some input on a non input vss signal. Blew.....
  238. OLDS 350 swap
  239. 1984 eldo some new problems
  240. 4.9 EGR Removal???
  241. Recommended Spark Plugs
  242. 4.9 Running Rough...
  243. problem solved
  244. Changing Oil To Synthetic?
  245. 4.9 performance
  246. 4100 transmission
  247. Coolant System
  248. ECM says my MAT sensor is bad.
  249. Adjusting the timing
  250. PCM codes