: HT4100 4.1, 4.5, 4.9



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  1. fuel filter location
  2. 93 deville water pump
  3. main bearing seel
  4. 4.9 off idle knocking?
  5. How many mile u got out of your 4.1 engine
  6. hard time starting car
  7. Needed help on 4.1 engine system
  8. 4.9 Idle Learn - Is this honestly it?
  9. 4.5 bad gas mileage and lack of power
  10. Flush at 20k ?Break in proceedure?
  11. 4.9 rpm bounce & bad mpg
  12. 91 4.9 hesitation EGR?
  13. power to fuel injector
  14. HT4100, no power uphill
  15. fuel regulator
  16. Inner wheel tire is spliting
  17. HT4100 Damper Bolt
  18. My car runs the same with or without the egr hooked up
  19. Superchip VS Timing advance
  20. mph limiter
  21. Highway millage.... bad....
  22. 88 Eldorado - rough idle, intermittent miss
  23. 4.1vs4.9
  24. Tranny Blew out
  25. Transmission wiring diag.
  26. Car not starting, please help
  27. So what do you like about your 4.9?
  28. 4.9 EGR system....
  29. Th 350
  30. problems removing oil pan - Please Help!
  31. 4.1 to 307 swap question
  32. Exhaust question once again
  33. BBob and anyone else, whats the say on synthetic?
  34. HEI In-cap Coil - What our the differences?
  35. tranny warmup?
  36. These 4.9s have some power!
  37. water pump, water pump, water pump,
  38. 1990 DeVille has" the shakes" and revs on its own
  39. 4.9 pinging not under a load
  40. Barometric Pressure Sensor location
  41. Exhaust leak in engine compartment?
  42. 5W-30 Vs 10W30 for the cold winter?
  43. trans delays shift
  44. Rebuilt motor for an 85
  45. 87 Eldo w 35,000 mi, Change tran fluid?
  46. Fuel Injector Impedance - High/Low
  47. How to make a wooden Engine Support Fixture J-28467
  48. 4.1 Coolant Leak from block-PLEASE HELP!
  49. 84 coupe deville fan shroud
  50. Mileage and Power loss, again.
  51. 4.9 valve cover gasket
  52. C-v joint
  53. 82' couple 4100 - accelerating by itslef - HELP
  54. Do I have to change coolant?
  55. 1990 4.5L Eldroado Engine running rough
  56. 4.9 speed limiter...
  57. Is this the right stuff, going to attempt this weekend
  58. TPS setting
  59. Tune up on a 89 Deville w/ 4.5
  60. Quick Question
  61. 92 eldorado E0085 dtc help pls
  62. Engine Rattle
  63. 4.1 chrome?!
  64. WHat Buttons Do I hit to CHeck the Error COdes On My 93 4.9?
  65. 4.9 off idle stumble
  66. HELP! Would a bad EGR valve cause my car to run rough on the highway?
  67. White Smoke
  68. Radiator Leak
  69. 4.5 Vs 4.9... Compairable?
  70. ROUGH idle , strange code .
  71. 85 Fleetwood FWD Engine Trouble
  72. WTB: ASAP 4.9L Front Exhaust Manifold
  73. 91 Deville 4.9 rough idle
  74. My 86 SedanDeville is running rough above 55mph
  75. Has anyone converted to the electrocruise?
  76. '86 DeVille HT4100 knock - please help :-(
  77. Engine noise while in park?
  78. 4.9 with poor gas mileage. just changed o2
  79. Low Oil Pressure
  80. Changing oil pan gasket
  81. Looking for a couple of VSS wires - '91 Deville
  82. the return of E48/E49
  83. 84' seville is a mess!
  84. EGR Vavle
  85. engine swap
  86. 92deville, idle(rough) Injector service??
  87. CAM sensor
  88. supercharging the 4.9
  89. Please help me with my 4.1..or give me a mechanic who can
  90. How to remove/replace rattling CAT
  91. pellets and 4.5 engine
  92. ohm reading for injectors on 4.5
  93. ? acceptable ohm resistance for injectors
  94. Intermittent Stalling
  95. 4.5 EGR vs. 4.9 EGR
  96. 4.5 engine
  97. Pushrod?
  98. Got new codes today.
  99. 90 Deville Dies while driving
  100. 84 4.1 Swap To 305/350 ?
  101. new to the forum, need a little help (90 4.5l pfi)
  102. Air Pump Seized (4.1 engine)
  103. OBD I codes for 4.x Engines
  104. junked 4.1 installed chevy 5.0 runs great
  105. I replaced my tps and isc but it stall every now an then
  106. Engine running rough
  107. 85 cadillac seville
  108. '93 4.9L Spark Plugs and Wires
  109. TCC location, please Help!!
  110. White smoke still coming from exhaust?
  111. Starter Disabled "Anti-Theft"
  112. need source for 99 cadillac service manuals
  113. HT4100 coolant issue.
  114. 92 (4.9L) stalling
  115. Cars starting to run a little better!
  116. Oil Overfill Cause Engine Damage?
  117. 4T60E Trans Sport Mode???
  118. can't advance computer beyond PCM?
  119. Turbocharge the 4.9L?
  120. Transmission Wont Shift
  121. discontinued?
  122. Replaced Injectors.. Still no action in Cyls 3 and 4?
  123. Edelbrock engine....
  124. Rough Idle
  125. A/c
  126. Speedometer problems......
  127. 1985 Seville HELP NEEDED
  128. Weird A/C air condition problem
  129. Size of O-rings in fuel line
  130. Fuel Filter Location.
  131. 94 Deville Boils Over after Engine Off
  132. Dexcool in a 4.9L???
  133. 1992 4.9 goes to open loop at HWY speeds.
  134. Bad Engines?
  135. fuel pump location (84 4100)
  136. car wont start (84 4100)
  137. Overhauling and Modifying a 1982 HT4100
  138. 92 deville bad head gasket selling?
  139. 92 deville please help
  140. New 4.9 problem, horrific idle, backfiring
  141. Oil Cooler...
  142. 83 eldorado with new reman engine and tranny timing / ping probs
  143. 4.1 to 4.7
  144. Car giving me fits
  145. 89 Seville idles at 2200
  146. help with codes
  147. 4.5 cranks but no start
  148. 4.9L Stalling out
  149. 'Service Engine Soon' Light on my 4.9 DeVille - Any ideas?
  150. Pistons for a 4.5L and 4.9L the same???
  151. 4.9 distributor help
  152. umm...help please!
  153. 84 coupe deville codes
  154. engine swap
  155. 1990 deville starter replacement
  156. TPS Enhancer
  157. What kind of spark plugs for the HT4100?
  158. Vehicle Data List, Can you spot the problem?
  159. changing belt
  160. 92 Deville - OIL IN COOLANT
  161. 94' sedan deville woes Heeellllllp.
  162. What are the troubleshooting steps for injectors/plugs/wires?
  163. 4.9 Engine Oil Cooler Line replacement
  164. INTERMITTANT "Missing" and rough running/idle
  165. Ppplllleeeeaaassseee Help!!!
  166. ok so maybe its the alternator
  167. engine coolant supplement
  168. Ford SVO Injectors, Can i use them?
  169. '85 Deville Engine Temp Fan Light
  170. If I disconnect the battery.....
  171. 4.9L distributor questions
  172. How to go into different parts of OBD?
  173. gas smell?
  174. 92 Deville Surging during idle!
  175. symptoms of a bad cat?
  176. ebay purchase question?
  177. Flowmaster 80 Series-I LOVE IT!
  178. Over Heating
  179. high throttle on start. Code 26
  180. Fram Air Hog-Test
  181. 4.9L Roller Rockers?
  182. '86 Fleetwood 75 FWD
  183. TPS Adjustment for 85 4.1 (RWD)
  184. where is the thing???!!!!!!????
  185. radiator removal and installation
  186. 92 deville "set timing mode"????
  187. Ahh!!!
  188. What to do to make car stop running rich?
  189. 92 deville clicking after shut off???
  190. Spark Knock, Continued....
  191. Throttle Body and Air CLeaner Housing
  192. Engine Dies...
  193. Quick PCV question
  194. reman Ht 4100 is in looking for reman tranny advice, sources, install, fluid etc.
  195. bogging 4.9 in a Fiero
  196. Hi - 89 Deville 4.5 Liter V8 in 84 Pontiac Fiero
  197. Overheat Problem
  198. '89 DeVille, ISP motor bounces
  199. How to tell if water pump is going out?
  200. Overheating Badly
  201. MAT Sensor location...
  202. Serpentine belt for 4.9 ('91 Deville)?
  203. sputtering
  204. Radiator leak
  205. 15 Amp ERLS blowing
  206. 94 deville fuel delivery prob. HELP!
  207. wtf
  208. loud tapping noise in the left bank sounds like from top end
  209. swap engine
  210. eric
  211. replacing a broke pulley
  212. Jrb
  213. 87 eldorado 4.1L in an 84 fiero - SES light ON
  214. so many codes!
  215. 91 Deville 4.9 with no power- Need Help
  216. 0.07 volts for ground???
  217. 87 Eldorado 4.1L
  218. type of oil
  219. ISC motor idle speed
  220. how do i remove the throttle body?
  221. got my 4.1 reman in but it wont fire up
  222. High RPM on Motor Start - 4.9
  223. 4.5 V8 Water in Oil
  224. 88 4.5 V8 Water In Oil
  225. Aftermarket 4100 Parts?
  226. coolant leak from timing cover?
  227. Hammer -vs- Fussy Starter
  228. bad thermostats, hopefully?
  229. 4.1 TPS sensor
  230. Strange engine/ecu problem
  231. Best motor oil for 4.9?
  232. 4.5 Coolant Problems, Leaking Fluid - but from where?
  233. simple 4.9 questions
  234. 4.9L Firing order + Cylinder location HERE!
  235. 4.1 Rough Idle
  236. Best (Worst) Air Filters to Use
  237. 4.9L performance upgrades?
  238. 4.1 to 4.5 swap
  239. How much for New Head Gaskets?
  240. new mat and coolent sensors
  241. rough idle and sputtering
  242. 4.1 exhaust manifold
  243. 4.9 Head Gasket
  244. problem with "service engine soon"
  245. Advance timing on 4.9
  246. What MPG for 87 Eldorado, 4.1?
  247. E048 EGR fault code how to fix?
  248. 4.9 And The Gas Mileage Sucks!!!
  249. Any way to disable the ses light?
  250. 95 deville tranny question