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Old 04-01-2022, 10:16 AM #1
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Clean your MAF Sensor to Avoid Stalling on the Highway
Just wanted to make a post about this because it could help someone out in the future.

Yesterday while merging onto the highway, my truck stalled. Immediate diagnosis i believed it to be a bad fuel pump or FPR because it would start, and quickly die within a second.

Before you even think about replacing a fuel pump, filter, or fuel pressure regulator, clean your MAF sensor. I unplugged the MAF and the truck stayed running. All it needed was a quick shot of cleaner, plugged her back in and avoided taking apart the fuel system unknowingly. If you havent cleaned yours in a while I suggest you do so soon, because my truck was running like a top before this happened.

Thanks @Majkmichael for the extra brainpower.
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Old 04-01-2022, 10:21 AM #2
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Quote:
Originally Posted by Zingvs View Post
Just wanted to make a post about this because it could help someone out in the future.

Yesterday while merging onto the highway, my truck stalled. Immediate diagnosis i believed it to be a bad fuel pump or FPR because it would start, and quickly die within a second.

Before you even think about replacing a fuel pump, filter, or fuel pressure regulator, clean your MAF sensor. I unplugged the MAF and the truck stayed running. All it needed was a quick shot of cleaner, plugged her back in and avoided taking apart the fuel system unknowingly. If you havent cleaned yours in a while I suggest you do so soon, because my truck was running like a top before this happened.

Thanks @Majkmichael for the extra brainpower.
Don't forget to do the idle and a/f relearn procedures. *Extra footnote*
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Old 04-01-2022, 10:26 AM #3
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If MAF is being cleaned, may as well do the IAC too.

If air cleaner element is kept really clean, it minimizes the frequency of MAF/IAC needing cleaning considerably.
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Old 04-01-2022, 10:39 AM #4
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Changing the the intake filter with a new paper filter would be a good idea.
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Old 04-01-2022, 10:46 AM #5
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Quote:
Originally Posted by jgue467 View Post
If MAF is being cleaned, may as well do the IAC too.

If air cleaner element is kept really clean, it minimizes the frequency of MAF/IAC needing cleaning considerably.
I do them all at the same time. MAF/intake air temp, IAC, TPS, throttle body, all connectors. Relearn brand new.
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