: HT4100 4.1, 4.5, 4.9



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