: HT4100 4.1, 4.5, 4.9



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