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I've noticed this on the passenger side, a small vacuum Barb that appears as though a line is missing. Any thoughts?
I get a whistle sound in the cab around 1900rpm sometimes. Sounds like it's coming from the back of the engine somewhere. Thinking it may be the IAC, given the sounds approx location, but seeing how vac leaks can cause bad MPG, it has me wondering too.
I've noticed this on the passenger side, a small vacuum Barb that appears as though a line is missing. Any thoughts?
I get a whistle sound in the cab around 1900rpm sometimes. Sounds like it's coming from the back of the engine somewhere. Thinking it may be the IAC, given the sounds approx location, but seeing how vac leaks can cause bad MPG, it has me wondering too.
what are your short and long term fuel trims?
do you have rear air? That coolant shutoff looks different than mine
I never saw if you pulled your spark plugs to check the gap. You might want to do this. On my first Triton plug change I had a worse misfire after new plugs than before. When I pulled the misfiring plug there was no gap at all. I just dropped the new plugs down in the hole, and the impact had mashed one closed. After that I learned to lower them into the hole and start the plug with a foot long piece of scrap fuel line.
I've noticed this on the passenger side, a small vacuum Barb that appears as though a line is missing. Any thoughts?
I get a whistle sound in the cab around 1900rpm sometimes. Sounds like it's coming from the back of the engine somewhere. Thinking it may be the IAC, given the sounds approx location, but seeing how vac leaks can cause bad MPG, it has me wondering too.
What are we looking at here? I don't see anything not connected.
What are we looking at here? I don't see anything not connected.
I agree, that is just like mine (just went out in the rain and checked), the only vacuum line for it is connected to the end of the vacuum cylinder and yours is there.
Yesterday's 600 miles tow at almost 20K lbs in the cold (18* at home when we left) and with snow for nearly 300 miles and me pedaling harder than typical (more downshifts on the hills) netted 7.72 MPG.
So you think an upstream o2 sensor could solve my issue? Thing with fuel trims is I've got no idea what I'm looking at!
negative trims is pulling fuel, ie it is way too rich. The stft looked evenish though. Definitely reset the pcm at this point. The extra fuel/ bad trim could be several things: o2, bad injector, misfire ( but pretty sure you got that sorted??) or just leftover from your misfires
negative trims is pulling fuel, ie it is way too rich. The stft looked even mish though. Definitely reset the pcm at this point. The extra fuel/ bad trim could be several things: o2, bad injector, misfire ( but pretty sure you got that sorted??) or just leftover from your misfires
I would scan trims, o2s, maf and go from there.
Okay, I'll reset the PCM tomorrow.
O2 sensors will get replaced when I get the banks headers and exhaust system in a few weeks. Hopefully any misfires are gone now (although a flash of one in the video above...)
MAF was cleaned, but will add the PIDs you suggest.
