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Engine Tunes/Mods [Archive] - Page 3 - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum
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  1. Rod Bearings With Motor In Truck
  2. Coolest Mod Ever, if you can pull it off?????
  3. Spark Plugs for 02 Trailblazer LTZ
  4. spark plug replacement prob
  5. Performance tuner help
  6. rpm stuck to 1000, why?
  7. spark plugs, what kind do you like?
  8. PCM (Jet) Problem
  9. Tune?
  10. CASE Relarn and ScanGaugeII
  11. tuners in chicago area
  12. Tuning
  13. Hydrogen Cell "Water4Gas" Mod on TB?
  14. Bell Housing Bolts
  15. looking for stock 2002 tune file
  16. pcmforless envoy
  17. Scan gauges
  18. E-fan question
  19. Case relearn Sticky
  20. Mechanical experience level.... 1- 10
  21. PCMforLess
  22. Poll... What vehicle modifications have you Every done - no just your envoy/trail b.
  23. Electric fans
  24. NGK V-Power Copper
  25. Lucas, Seafoam, or Techron? What do you use?
  26. School me on "tunes"
  27. Any tricks to changing the oil for the 6 cyl ascender (envoy) ?
  28. New to the 4.2 i-6 engine help
  29. 06 4200 head??
  30. LS1 throttlebody
  31. Winter Tune up...
  32. Techron Fuel Additive
  33. HPTuners for 02 tb
  34. PCM tune on the way!
  35. Spark plug Wires?
  36. Pcm4less / Gm Warranty
  37. Supercharger available
  38. 0-60 times
  39. Maximizing PCMforless Tune - Questions
  40. bought a used pcm on ebay
  41. PCM Versus Updates?
  42. Individual Throttle Bodies
  43. How the VVT works
  44. Oil life changed with PCM tune
  45. Jet Chip Question
  46. efans problem
  47. Problems using Seafoam
  48. Another hot rodder using the I6
  49. 255 lph fuel pump for 2002 Olds bravada?
  50. The Electric Fan Myth
  51. The Electric Fan Myth
  52. Our first 6.0L swap into 03 tb
  53. pcmforless help
  54. o2 QUESTIONS
  55. Engine Swap
  56. new to forum
  57. Ordered my tune
  58. Aftermarket Cams for 4.2 ?
  59. Turbo 4200 - video
  60. Code Reader
  61. 4.2 Turbo big power levels wanted where should I start?
  62. PCM for Less Tune/AC problems
  63. How do you get front coil pack out
  64. pcmforless tune problems
  65. new here
  66. Turbos
  67. Mod Time
  68. Check Engine Light
  69. Normal Engine Temp
  70. New To Site...help With Tune Up!
  71. head swap vs porting early head
  72. Looking for stock tune file
  73. 4200 in Datsun Z with ITB's
  74. GM camshaft specs - 2006
  75. how to get plug one out?
  76. pcm questions
  77. Shift points?
  78. Anybody need a low mileage 2006 4.2 for a swap?
  79. E-fans "proven design" that work...
  80. Tech 2 Scan in Memphis, TN
  81. 3 New Mods!! LOOK!
  82. RPM's dropping, almost stalling when heat is on
  83. just got this off a monte carlo forum!
  84. Engine misfires
  85. What is PCM4Less
  86. What supercharger to use M90 or M112
  87. Engine Code Reader won't power up
  88. Performance chips?
  89. This is some funny stuff
  90. Tblazer power tease;)
  91. TBSS gauge pod swap..
  92. Turboing my 02 TB LT
  93. PCM tune and octane
  94. gas mileage with tune
  95. A Little Extra Power
  96. Help with finding a chip 05tblazer
  97. Anybody had trouble with a PCM tune?
  98. Fitch Fuel Catalyst
  99. Dashhawk Who's got them?
  100. 02 TB is dropping RPM's at Idle and slow speeds
  101. CASE relearn myself..HELP PLEASE!
  102. want to go forced induction
  103. PCM Security Relearn
  104. AVG. Econ L/100 KM ?
  105. 4.2L oil pan gasket?
  106. Finally got my PCMforless
  107. PCM4less installed
  108. 07 head swap?
  109. Turbo Trailblazer update
  110. slr performance chips
  111. changing my spark plugs questions
  112. cleaning my k&n air filter?
  113. engine almost stalling in park .. just read plz
  114. Engine Driven Air Compressor
  115. throttle body spacer?
  116. Performance chip?
  117. engine light P0301
  118. Intermitent fuel pump....now PO410 indicator
  119. M code engines
  120. I6 Pcm for less Efan questions
  121. Stabilitrak with a Tune
  122. Fan Clutch "Software"?
  123. Mobil 1 Amsoil Oil Analysis
  124. Knock Sensor Question/Location
  125. Hesistation problem
  126. Some PCM questions...
  127. Bad MAF?
  128. Changed gear ratios, need to correct speedometer, no luck
  129. I6 2002-2004 HP Vs 2006 onwards
  130. Tuning software/hardware for 4.2 i6?
  131. This is too funny!
  132. swaping a 4.2 to a ss engine?
  133. E85 Conversion
  134. spark plugs
  135. Looking for a tuner in the SF Valley
  136. Trailvoy 4.2 injector upgrades!
  137. Gmt 800/900 engine/ powertrain swap 6.0 dod gmt360!!!
  138. Terrible MPG + Engine Tune?
  139. Did the 4.2 lose power?
  140. gas gauge is off when installed....
  141. Turbo 4.2 member check in post!
  142. Oil around plug
  143. engine
  144. Knock sensor code T/S
  145. What is the most HP anyone has got out of a 4.6L?
  146. PCM Help
  147. Today's activities...
  148. Engine nearly stalls
  149. Spark plugs
  150. 4.2 variable valve timing controller?
  151. Greddy E-manage /safc?Engine management?
  152. how to take off crankshaft oilseal ?
  153. Fan belt clicking?
  154. Need a good programmer
  155. Reccomended Spark Plugs
  156. Supra 4200 Swap
  157. Need help
  158. Reduced Engine Power
  159. Rpm from 650 to 950 and reverse two times in one day
  160. performance cams or intake manifolds
  161. Filter magnets?
  162. No CASE RE-LEARN
  163. Does the base model Isuzu Ascender have the light for old oil?
  164. PCMforless tune
  165. PCM tuning.
  166. tune for my tb
  167. Rasing Rev Limiters
  168. I need a tune/rpogrammer
  169. Need a little more power
  170. Idling
  171. 2005 - 2006 dyno comparison
  172. Finally Got It Done--CASE RELEARN
  173. Installing JET PCM 20709 in '06 TB LT 4.2-6
  174. 185 or 210, which is correct?
  175. Chicagoland pcm tuning
  176. New Member
  177. New E-FAN Solution: AVID Performance
  178. Questions about tuning options
  179. Changed spark plugs and truck started tp shake
  180. Custom 4200 Oil Pan
  181. Rpm going down please help!!!!
  182. PCMforless tune...Must have!!
  183. A/C plays RPM between 1,000 & 600.
  184. TB runs SOOO much better now....
  185. E-FANS Would this set up work?
  186. oil pressure gage HIGH
  187. All aluminum radiator and electric fan setup
  188. PCMForLess Octane
  189. Rough Idle Even After Throttle Body Clean
  190. Seafoam
  191. Can I do tune-up myself on '02 Envoy??
  192. Plugs
  193. Neeed your opinion
  194. Neeed your opinion
  195. Need parts advice: Water Pump, Fan Clutch, Belts & Pulleys...
  196. timing belt/chain
  197. Hello Everyone
  198. I6 Engine weight
  199. HP Tuner or PCM4less
  200. Chevron Techron
  201. 4.2 I6 Envoy Cooling System Flush
  202. Sort of OT: Engine won't start when cold
  203. Has anyone used the HP Tuner
  204. electric fan kit?
  205. engine viberation 87k miles
  206. tuner in ri
  207. timing belt of chain
  208. Pulstar Plugs
  209. Throttle Body Cleaner?
  210. getting a weird rpm shift
  211. I6 Turbo recommendations?
  212. PCM4less...before INT/EX Ok??
  213. Spark plug gap?
  214. Service Engine Light with "clicking/ pinging"
  215. Dyno'd our stock 08 TB 4.2 4x4 today
  216. Help with some basics
  217. I6 radiator needed
  218. Factory Intake Mod Question....
  219. no code
  220. new E-fans from dewitts
  221. 04 TB Rough Idle! Help!
  222. Favorite Mod Under $100
  223. Pcmforless
  224. Jet performance chip
  225. 40,000 miles and ticking...
  226. tech 2 tire change?
  227. Idler Pully Replacement?
  228. i6 swap
  229. 03 Envoy slow accel., high fuel consumption
  230. Fuel Injector Cleaner
  231. NGK vs AC Delco Plugs
  232. New guy questions
  233. Nitrous
  234. Oil change
  235. Coil Pack
  236. PCM info
  237. Bad Idle P0013 error
  238. PCM4LESS Tune MPG ?
  239. rough idle at stop
  240. CASE/security Relearn
  241. Power Inquiry
  242. Rough Idle - new plugs, throttle body clean, and 2 new coil packs
  243. p0017 chev trailblazer 2005
  244. Hayden efan
  245. whats the right plug torque?how much i need to fasten spark plugs?
  246. Help with PERFORMANCE
  247. superchargers
  248. Looking for a blown or "need of repair" 4.2L motor for turbo project...
  249. performance chips...
  250. What is the Best Thing for For Low End on TB's