Recent content by Cartier16

  1. Cartier16

    Gas mileage

    My bad I put it in general discussion. 2003 GMC YUKON DENALI 6.0 AWD 180,000 MILES New fuel pump fuel filter spark plugs cv axels radiator after market air intake. Since it’s all so relevant and contributing to cheap gm crap
  2. Cartier16

    Gas mileage

    Chevy sucks. 13mpg average at a half tank drove 15mi commute. Steady drive entire time with some stop and go traffic driving like a grandpa to keep Instant meter averaged 16-25mpg the entire drive. Started with 136mi to empty ended at 87mi to empty in a 15mi trip. Absolutely terrible almost 4...
  3. Cartier16

    Fuel delivery?

    A fuel pump? Or could there be something else vacuum leak or something causing pressure to fall
  4. Cartier16

    Fuel delivery?

    So I did some fuel pressure tests. Truck is still turning over and running. Initial pressure test was 50 psi then it fell down to about 35-40 psi. Primed it a few times initial was 50 fell to about 40. Started truck stayed steadily at 50 psi. I drove the truck a very short distance and have been...
  5. Cartier16

    Fuel delivery?

    Shrader valve?
  6. Cartier16

    Fuel delivery?

    I’ve heard that the harness is notorious for faulting on these pumps is this true. I can replace the relay but I feel like that’s another thing that’s just spending more money. Mechanically you typical don’t get intermittent issues that’s usually electrical faults is there specific grounds that...
  7. Cartier16

    Fuel delivery?

    I was tapping the tank yesterday when I was stranded and there wasn’t any luck which is why I was surprised it started today
  8. Cartier16

    Fuel delivery?

    And the gauge is accurate most of the times it’s usually just upon initial start and or after I fill up the tank it’ll register empty then go to full tank and then read accurate. I’ve ran it down to where it said about 1/8th tank and then proceeded to put about 22 gallons in it so I’d say it’s...
  9. Cartier16

    Fuel delivery?

    I was questing the regulator or the pressure sensor. How can you test those though. I’m going to pick up the tools to test my line pressure here soon. Thanks for the reply
  10. Cartier16

    Fuel delivery?

    To my knowledge a fuel pump isn’t intermittent. It’s either going to work or not and when it stops it’s going to cut the engine as soon as the gas stops flowing not stop then start working again 12 hours later but I could be wrong. Just don’t reallly have the time drop my tank and don’t have the...
  11. Cartier16

    Fuel delivery?

    Hello all I have a 2003 Yukon Denali 6.0 with 170k miles. Purchased about 6 months ago I’ve currently replaced cv axels, radiator, and trans cooler lines. Truck has been running perfectly fine and the night of New Years it died on me. While driving my engine died I pulled over and kept turning...
  12. Cartier16

    Suspension

    Update, I ended up replacing both cv axels my passenger side cv definitely had so wear on the ball bearing but still have the issue. It was happening when I’d make a half steering wheel rotation but now with the new cv it’s only when I max out my steering for tight turns. I’ll get a sound clip
  13. Cartier16

    Suspension

    03 Denali Awd. I have what sounds like a machine gum popping off in the front end when turning. More than likely cv related but I don’t want to just order axels to find out it’s joints as well. Haven’t had the time to lift the truck up and pull everything apart to diagnose. And helpful tips or...
  14. Cartier16

    Yukon throttle response

    Awesome man that’s exactly where I wanted to start fuel filters are cheap and easy. Got 170k miles and it’s the original pump. The sending unit is bad so it’s alternate from a full tank to a empty tank sometimes during idle. I hope I can make that pump work for a could thousand more miles...
  15. Cartier16

    Yukon throttle response

    No cel. There is no misfire it just appears that the gas volume and throttle response don’t line up. I don’t think it can be the throttle sensor more so fuel delivery problem
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