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  1. 3

    LOSS OF POWER! NEED HELP!!! 1998 VORTEC TAHOE

    Did that and now it's bank 1 sense 1 I just replaced it! Damn it!
  2. 3

    THE ULTIMATE GMT400 STORY

    They were paid to do the intake gasket, and just ed up the whole motor and replaced the motor out of "good faith" and now I have a dealership warranty on the motor
  3. 3

    Anyone running an underdrive crank pulley ?

    I did all my Alternator pulley and underdrive pulley, thus changing the belt size and running smaller pulleys would mean "less" work but gains in HP and top end due to less concentration of creating power for other means and focusing it towards top end and moving. At Idle, I do see my battery...
  4. 3

    THE ULTIMATE GMT400 STORY

  5. 3

    THE ULTIMATE GMT400 STORY

  6. 3

    THE ULTIMATE GMT400 STORY

  7. 3

    THE ULTIMATE GMT400 STORY

  8. 3

    THE ULTIMATE GMT400 STORY

    What's your instagram? I'll @ you in them I wish I more technologically advanced in this area of the forum
  9. 3

    THE ULTIMATE GMT400 STORY

    Hello did this from my phone its an L31 not the LS1 wow, Idk how to upload pictures on this forum, im slowly learning, but I have them on Instagram @Americanmade350 and Facebook. Email me at [email protected] and I will send you BEFORE AND AFTER PICTURES!
  10. 3

    THE ULTIMATE GMT400 STORY

    Let's begin with I have a 1998, TWO DOOR TAHOE, Iron Head Vortec Motor 5.7l 350. had 170k on it. Lower Intake Manifold Gasket was leaking oil, coolant was building up at the top (rust/brown) So...I decided rather than doing it myself I bring it to a dealership because its done RIGHT, pricey...
  11. 3

    p0175 code

    if coolant was low, check the color of your oil (cracked head possibly) and power steering, motor is running hot and using steering fluid for possibly a bad pump
  12. 3

    p0175 code

    po175, change your PCV valve (Driverside) stupid plastic thing first, then check your ENG1 fuse
  13. 3

    1997 5.7L VORTEC stalling and not starting

    IF ITS A FUEL PUMP ISSUE...have someone sit in the truck, turn the key to ON position dont turn it over...listen for the humming of the fuel pump to kick over...if nothing HAPPENS.,.,. hit the tank with a rubber mallet WHILE TURNING IT OVER, that will kick it on sometimes and then its a FUEL...
  14. 3

    My efan setup

    When I did mine, I noticed performance gains of top end, not so much torque. BECAREFUL WITH THOSE WIRES!!! ONCE YOU PULL THE MOTOR OR REPLACE MECHANICAL OR GETS NEAR WATER IT WILL NEVER BE THE SAME
  15. 3

    LOSS OF POWER! NEED HELP!!! 1998 VORTEC TAHOE

    Well let's first start off Im throwing a po420 (Bank 1 sense 1) been replaced a few times. Once in awhile my "Check Gages" will flutter on my dashboard I've noticed since then, loss of power, weird shifting, poor acceleration, and rpm/idle being off SOMEONE PLEASE READ THIS AND CONTACT ME...
  16. 3

    Northeast Members

    For anyone in the CT area, my friend Jonathan JB Brown, Norwalk CT, had a Brown Lifted 4DR Tahoe on the Forum. He passed away at the age of 20 last week from an accident. Please anyone unite with me for GMT400 for a Memorial. 203-984-7077.
  17. 3

    Intake Gasket Replacement

    I sent my truck to a dealership to do it. $600 later, and a bolt down the manifold, i got my truck back a week later, idling odd, back firing and hesitating eating coolant...well they never told me they STARTED IT and RAN IT! I brought it back to them, they pulled the head again, it had been...
  18. 3

    Po327 New Motor

    I'm throwing codes p0420,430,327 327 is a knock sense, bank 1 sense 1 Just had a new motor replaced by dealership, changing manifold gaskets they dropped a bolt in motor and started it...yep, answer for this issue? Plus I'm getting sputtering and backfiring
  19. 3

    Loud Thunk

    At a stop, Ill take my foot off the brakes and there is a loud thud that comes from the driverside drum, like its engaging or its BINDING.
  20. 3

    Loss of Power, Gains, HP

    While Driving or from dead stop, ill give it quarter throttle and hammer it down and it wont respond for full gas pick up...if anything it just gets louder and moves slowly to climbing speed. Ill have my foot already on the gas, press it down to 3/4 throttle and it wont gain. How could I...
  21. 3

    97 5.7 strange itermittant misfire

    Id run 93 and race fuel through the motor...30 gallon tank? put 20 93 and 10 gallons of race fuel no higher than 116 octane that cleans injectors and the whole motor out soooo well
  22. 3

    School cop and My pipes experience yesterday

    Yeah ive been chased by cops for gunning it under a bridge and holy hell that was so much fun!
  23. 3

    Rough/Timid Idle

    Hellomagain everyone! New problem! Start my truck, idle runs up high on rpms and takes almost 5-10 seconds to idle down to normal idle. I go into drive, hot the gas, take my foot off the gas to slowdown and the idle stays and 1100 rpms rather than dropping down....and it only drops down when I...
  24. 3

    How to Replace Blower Motor Resistor

    Usually the control module goes on these, but the blower moter resistor and lower motor relay goes...open up your glove compartment, take it off the track and look on the plastic hardware, BOTH ARE SITTING RIGHT ON TOP< REPLACE! next if that doesnt work, check the connection on your control...
  25. 3

    Intake Gasket Replacement

    I give you MAJOR PROPS on an amazing write up but especially a good job on tackling such a bit*h job!

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