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post #16 of 24 (permalink) Old 03-12-2019, 07:34 PM Thread Starter
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Sometimes electrical components act up at the weirdest times. But mostly under load where they heat up and then they start failing quickly. If you had a way to watch the fuel pressure in the cab and when it cut out, and it didnít drop, that would
Be a good way to know itís not the fuel pump. Not sure how to do that without costing some money. It does seem like you would get a low fuel pressure code though surely


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Thatís what I was thinking. I may know someone who could help me out with that.

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post #17 of 24 (permalink) Old 03-12-2019, 07:46 PM
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I forget what adapter you have to use to check fuel pressure on a Tundra, but if you are able to T off, there is a long hose fuel pressure gauge that you can run up to the windshield and watch it under a load while the issue is happening.

Have found a few hard to trace issues that way in the past.


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post #18 of 24 (permalink) Old 03-12-2019, 07:57 PM Thread Starter
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I forget what adapter you have to use to check fuel pressure on a Tundra, but if you are able to T off, there is a long hose fuel pressure gauge that you can run up to the windshield and watch it under a load while the issue is happening.

Have found a few hard to trace issues that way in the past.

I have someone that has a fuel pressure gauge. I just need to know what adapter we need and where do you hook it up at.

2014 1794 CM, Bilstein 6112's top setting, 1 CB shim per side, 5160's rear with +3 CB shackles, Zone upper control arms, 1.25 Bora wheel spacers, Stock wheels, Nitto Ridge Grapplers 295/60/20, AMP Research steps.
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post #19 of 24 (permalink) Old 03-12-2019, 08:30 PM
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In the mean time, dump some good injector cleaner in the tank and see if it helps.

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post #20 of 24 (permalink) Old 03-12-2019, 08:51 PM Thread Starter
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In the mean time, dump some good injector cleaner in the tank and see if it helps.

Will do. Never hurts to try the inexpensive things.

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post #21 of 24 (permalink) Old 03-12-2019, 09:16 PM
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Originally Posted by maybe View Post
I have someone that has a fuel pressure gauge. I just need to know what adapter we need and where do you hook it up at.
This might help, seems to list part numbers for adapters.

https://workshop-manuals.com/toyota/...ons/page_4550/


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post #22 of 24 (permalink) Old 03-12-2019, 09:20 PM Thread Starter
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Originally Posted by Powertechn2 View Post
This might help, seems to list part numbers for adapters.

https://workshop-manuals.com/toyota/...ons/page_4550/

Thanks, I will check that out.

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post #23 of 24 (permalink) Old 03-13-2019, 10:24 AM
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Truck has a really strange intermitting problem. Sometimes when I give it gas to pass someone the RPM's hang between 3000 and 4000 rpm's and there is no increase in speed. So I let off, then I hear a thud. If I try to just hold it the check engine light starts flashing and the truck starts shuddering. I have also had it happen a few times with a head wind or going up hill on the freeway. I have had the codes pulled it always shows random misfires and bank 1 and 2 lean. I took it to the dealer and they have no clue. They are guessing that it's a broken valve spring but are not sure. What would the symptoms of a broken valve spring be? The reason I ask is because the dealer could not explain to me why they think it is a broken valve spring. The tech took a snap shot with tech stream and sent it to Toyota engineer's.
I had a valve spring go late last year - it completely disabled me right then & there (https://www.tundratalk.net/forums/tu...ml#post9395284).

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post #24 of 24 (permalink) Old 03-13-2019, 11:14 AM Thread Starter
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I had a valve spring go late last year - it completely disabled me right then & there (https://www.tundratalk.net/forums/tu...ml#post9395284).

Thanks for that info. I remember reading that discussion when I was searching for info on broken valve springs. That's what made me think I don't have a broken valve spring.

2014 1794 CM, Bilstein 6112's top setting, 1 CB shim per side, 5160's rear with +3 CB shackles, Zone upper control arms, 1.25 Bora wheel spacers, Stock wheels, Nitto Ridge Grapplers 295/60/20, AMP Research steps.
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