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redvett

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Senior Enthusiast (11/11)

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  1. Federal emissions requirements includes vapor emissions from the gas tank and to eliminate it MFR's were required to go to returnless fuel systems to avoid circulating fuel and heating it up. Returnless systems in GM vehicles starting in or around 2003 eliminated the line fuel filter and added a larger lifetime of the pump filter since the fuel isn't circulated anymore. There are millions of vehicles all over the U.S using this system and many get 20000+ miles on a pump.
  2. Remember if you disable any safety equipment to notify your insurance company since they give you discounts for safety equipment and not doing so could be considered fraud in event of an accident.
  3. Did this on my 2001 Silverado and Corvette worked great. Found it here. https://www.ebay.com/itm/125182232515?chn=ps&_trkparms=ispr%3D1&amdata=enc%3A1wcaGUg3eRZqIxtn07chPiQ66&norover=1&mkevt=1&mkrid=711-117182-37290-0&mkcid=2&itemid=125182232515&targetid=1599090334937&device=c&mktype=&googleloc=9030162&poi=&campaignid=15275224983&mkgroupid=131097072938&rlsatarget=pla-1599090334937&abcId=9300697&merchantid=6296724&gclid=Cj0KCQjw29CRBhCUARIsAOboZbI2SCjmhHIgiTnvGsiz8pvFoPHeMWWKIoqtb8qZGxr1VjRiLefgfoQaAvilEALw_wcB
  4. When SES is on the PCM goes to a default mode and retards timing and you end up with worse fuel economy and with the high gas prices do you or can you afford it. Almost every powertrain code results in deterioration of performance or economy. Dont drive around with a SES light on.
  5. Your freeze frame shows 44 psi fuel pressure and it is low should be 55-62 psi.
  6. There are current and history codes current can be erased by disconnecting the battery for a couple of minutes but will come back if the issue isn't fixed, history codes will remain until after the problem is fixed and then can be cleared with a scanner.
  7. PCM's rarely go bad unless you jump start a vehicle and cross the cables. Pick the P0102 and start there its the best way to work through the problem and if you haven't already go to Alldata for the diagnostic tree to find the problem.
  8. Check & replace air filter and also check the tubing going to the throttlebody, your truck is 12 years old and the tubing maybe collapsing on acceleration.
  9. I would make sure the wheels are straight forward and than chec the threads on both tie rod ends they should be the same and if not its not aligned correctly, also start engine and turn wheel clock to clock and count turns and divide by 2 and turn from either full left or right and count the steering wheel counts until your half way. The front wheels should be exactly straight forward if not its a tow in problem. My recommendation is let the shop fix the problem.
  10. If the steering wheel isn't straight take it back and have them fix it, you paid for the job to be done correctly.
  11. If you replace the BCM you will need to get it programmed so take the VIN# with you.
  12. GM started the returnless fuel system on pickups in 2004 on V8's and Tahoe & Suburban 2003 and continue up until current production, the returnless system was dictated by the Fed's vapor emission requirement.
  13. How many miles? GM started to use a returnless fuel system and thay have been known to last 180000 to 300000 miles, they are very robust systems.
  14. In my of 50 years as an ASE certified tech i have seen a fare share of bad oil filters and if the oil is the same viscosity regardless of mineral or synthetic oil the oil will not change the pressure its always the oil filter. Under normal operation the oil filter passes 100% of the oil through it but when the filter becomes plugged the bypass allow oil by the filter lowering the oil pressure. Change the filter its easy and cheap.
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