Search results

  1. S

    Code p219A air fuel ratio imbalance

    I have a 2017 GMC Yukon with the 5.3. I have a 3inch exhaust with magnaflow muffler, AFE CAI and diablo sport tune. I got the P219A code. I figured I might have bad gas so I took the tube off. Code came back. I checked my intake all of the connections are tight there so I’m assuming it’s the...
  2. S

    ebay Escalade light for Yukon

    Searching on ebay and came across this. Seems like it is way to easy that it could just be plug and play like this. http://www.ebay.com/itm/For-GMC-Yukon-2015-2017-Tail-Lights-LED-Rear-Lamp-Cadillac-Escalade-Style-/121790088552?hash=item1c5b414568:g:FFgAAOSwV0RXsm7~&vxp=mtr thoughts?
  3. S

    Possible exhaust issue?

    I have a 2017 Yukon SLE. I put on the 18inch magnaflow muffler and did a resonator delete. Under hard acceleration at 4K RPM the flapper valve opens up and the car starts to die out. My exhaust shop said its cause of the valve the dealership said its because the exhaust let's back pressure...
  4. S

    2017 Yukon falls flat on its face

    Well I tried cleaning the MAF that didn't do anything. Ended up going back to the stock intake which fixed the problem of it falling flat on its face but the noise on the exhaust flapper under hard acceleration is still there. Could this be due to less back pressure? Looks like I'll have to...
  5. S

    2017 Yukon falls flat on its face

    I have heard that the 2017 can't be tuned yet. Doing another hard acceleration run I can hear the valve in the exhaust opening and letting out lots of air but it seems like the transmission still wants to hold in first. I didn't oil the filter could it have been over oiled and causing this?
  6. S

    2017 Yukon falls flat on its face

    hey everyone! I just installed the K&N 63-3082 and welded in a 18inch Magnaflow with no resonator. On a hard acceleration the car falls flat on its face around 4500 rpm until it shifts. Any advice?

Forum statistics

Threads
129,074
Posts
1,809,957
Members
92,137
Latest member
ppv2018

Latest posts

Top