02-09 Vortec 4.2L I-6 Engine and Drivetrain [Archive] - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum

: 02-09 Vortec 4.2L I-6 Engine and Drivetrain


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  1. Whine
  2. Auto Locking differential
  3. Grinding on acceleration out of turns
  4. battery problems?
  5. Torque Converter
  6. "service engine soon" light on 2002 Trailblazer
  7. More Air
  8. 2004 Trailblazer problems
  9. oil light?
  10. Engine cutting out or stuttering
  11. Jerking & chirping when put in drive or reverse
  12. IAT Sensor
  13. Help with a P1484
  14. stand alone engine managment system?
  15. 1st to 2nd Thump
  16. Fan clutch question
  17. High idle at startup
  18. Front End Noise While Idling
  19. has anybody swapped out...
  20. Engine Oil burning too fast!
  21. Differentials
  22. fuel spitback
  23. Check Engine Flash?
  24. Change oil light
  25. Oil Change
  26. Rear diff. fluid change questions
  27. 4.2L Potential
  28. The POS Left Me Stranded!!!
  29. how loud????
  30. Ring and pinion
  31. Disable Overdrive while towing?
  32. Hey, look, change oil light on...
  33. Bad Acceleration...
  34. What do i do now?
  35. Weird noises coming from underneath my TB
  36. Couldn't find it in search
  37. well im a total moron...
  38. wut is up with the new 2006 4.2 vortac?
  39. Black Gold, Texas Tea
  40. Problems when Towing [long...]
  41. why we are slow
  42. Rear Diff Drain PLug
  43. o2sensor simulator
  44. Gear ratio ?
  45. Propane
  46. 2006 Specs
  47. Long time to kick over
  48. Gas Mileage is decreasing
  49. Idling High
  50. oil pressure
  51. Rear Pinion Seal
  52. ATF fluid flush?
  53. Header for 4.2L
  54. Avg MPG
  55. 06 model
  56. Are they kidding?!
  57. Transmission Whine
  58. traction control
  59. what is the speical tool you need to remove the fan clutch??
  60. Low Idle?
  61. Filter Cleaning Kits
  62. When is it time to buy a new battery?
  63. My car is one in a "million", and not in a good way
  64. idle drop
  65. Fuel Economy with 5300 DOD
  66. and yet ANOTHER trip to the dealer!
  67. Engine stall
  68. Corsa Performance System
  69. newbie question
  70. INNER AXLE BOOTS
  71. Aftermarket mod problems
  72. diff. fluid change
  73. Axel Ratio and MPG
  74. Nitrous/fuel problem?!?
  75. 2007 TrailBlazer
  76. Voltage Stabilizer??
  77. Synthetic oil...
  78. for the Petrol Heads (overboring)
  79. SES light on & surging idle
  80. Strange shift when cold
  81. How hard to change the intake manifold?
  82. New Battery- Red or Yellow Top?
  83. has anybody seen a review on atrail/envoy with the 5300
  84. Lockers
  85. Jet Drivetrain products
  86. S.E.S. Light
  87. Oil Pressure Gauge
  88. Fishtailing
  89. CryO2 and NOS?
  90. What mods can i do?
  91. 4 low blinking?
  92. wont start? help
  93. Noise from console
  94. Irratic Idle on start up
  95. Battery Cover Hose
  96. Idle Rpm
  97. Specifics on locking differential
  98. battery light stays lit
  99. Interference?
  100. Removing Head
  101. Finally fixed! (fingers crossed)
  102. 05 TB DOD status?
  103. Metallic "ping" noise!
  104. TrailBlazer FFV Conversion??
  105. Throttle Position Sensor Trick
  106. Why does GM have torque management?
  107. Flashing SES, Iridium plugs
  108. Only had it a month SES light on
  109. torque converter
  110. tranny slippage?
  111. Any point in "feathering" the shift points?
  112. Frontend grind
  113. New 2005 Denali - Help Please
  114. What else can we do
  115. Turbo 4.2
  116. Oil Dipstick
  117. Would this really work?
  118. LUNATI CAMS
  119. 6k Service and rear diff fluid change???
  120. Monroe Reflex shocks
  121. Update to my engine surging
  122. Check engine light
  123. Mirror Problems
  124. Fuel Fill Question
  125. Check engine light on then off
  126. rear diff fill plug
  127. Need some advice please
  128. Check Engine Light
  129. Increase Fuel Mileage
  130. Need part number...
  131. rear axle seal
  132. reduced power..
  133. having probs now...AARGH
  134. Block Heater???
  135. how much variation is there in HP among TBs
  136. 05' 4.2L, How much HP?
  137. A/C Condensor...
  138. Wierd sound in power steering..
  139. Is My Envoy Falling Apart??
  140. Oil gauge question
  141. Parking Brake
  142. rearend clunk?
  143. Recomindations for a 2006 GMC Envoy?
  144. gear ratio = gas mileage
  145. Throttle body spacer
  146. First 6 speed TB!?!?
  147. Service Air bag??
  148. Another Problem
  149. Reset Engine Check Light?
  150. More pull power
  151. I6 Runs hot
  152. Whistle?
  153. odd squeaking noise
  154. CEL and diagnostic codes
  155. Towing question
  156. concensus on throttle body spacer
  157. tranny squeak
  158. I6 resonator
  159. Stalling Problems
  160. Encoder Motor help '02 Envoy SLT
  161. SES light...Could It Be Bad Gas?
  162. Noise under hood when stepping on gas pedal
  163. Shift Kit
  164. stalled...again
  165. auto cpu
  166. Service Engine soon light
  167. Yet again!
  168. '02 Trailblazer Problems!
  169. Rear Window Pops Open On Dirt Roads
  170. Anyone else here with HPTuner software ??
  171. Mobil1 or Castrol Syntech??
  172. Ground Wire Voltage Stabilizer
  173. Question on the TB hitch
  174. Oil Questions???
  175. Mobil 1 Truck and SUV 5W-30?
  176. lets get corsa to notice us!!!
  177. 06 TB w/5.3 DOD needs lifters...
  178. Torque Management?
  179. Swapped in a 4.2 to my old Fbird...
  180. Misfiring i6!
  181. Feedback for 4.2 Header...
  182. U-Joints and Backlash
  183. Sound clip of annoying whining sound!
  184. I gotta question about my tb
  185. '02 SWB TB: Question on rear diff. fluid
  186. Has anyone
  187. Where did it come from?
  188. Max Nitrous shot!?
  189. Won't Shift!
  190. Trav4011 plz come in!
  191. a bump
  192. Poll: 4.2L I6 Header Interest
  193. Different part #s for 2002 PCMs??
  194. a voy w/ supercharger! not fair
  195. the evil empire
  196. Cheater TBSS
  197. Possible cap or upper hose leak.
  198. Dyno Results on the 03 ENVOY
  199. Special Policy Adjustment for 4.2L
  200. Serviceable PCV valve?
  201. Seeking advise
  202. Car sounds like Tuner!!
  203. How do I find out what kind of gears I have?
  204. Tie rods?
  205. Help w/ Oil Change
  206. 2005 PCM service numer help..
  207. Newbie with question on water pumps
  208. Drive Axle Seal
  209. oil question
  210. Vortec engine cover
  211. Need some help
  212. Running Hot
  213. Trail Blazer LS 2006
  214. Which pulley is this?
  215. its almost oil change time
  216. Ls1 into TB..
  217. Fuel Filter Replacement
  218. Hot Hot Hot!
  219. Corvette Intermediate Servo in 4L60E?
  220. Help
  221. Gm Tech Needed
  222. need help understanding???
  223. 100 000 Km or 60 000 miles
  224. 2002 envoy engine Questions?
  225. Need comparison data - AC cold air temps
  226. Help SES light
  227. Oil change @...
  228. oil life question (new i think)
  229. Questions for gearheads...
  230. surging under accel
  231. humming/vibrating noise????
  232. Expensive Fix
  233. gas gauge is bad?
  234. Truth
  235. The voy seems sluggish
  236. Tapping I6?
  237. 4.2L valvetrain pic..
  238. Problems with my TB
  239. Overhaul kit for I6?
  240. TQ converter on every day driver
  241. Differential Q.
  242. 6.0 "obsession"
  243. Loss of high-speed and power
  244. Motor
  245. Idle surge?
  246. Octane Boosters..
  247. Diagnosing Dead Air Conditioning
  248. New here
  249. HP #'s
  250. Engine Life