Changing the mass air flow sensor on a 4L60E rebuild?

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carod
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Joined: Wed Aug 10, 2016 6:53 pm
First Name: Rod
Last Name: Roy
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Location: Calgary, Alberta

Changing the mass air flow sensor on a 4L60E rebuild?

Post by carod » Wed May 08, 2019 4:05 pm

I have herd that many shops are changing the mass air flow sensor when they rebuild a transmission. I
have never changed one and just curious what some of you are doing with regards to changing mass
air flow sensor on a rebuild?
Regards
Rod Roy

Bryan
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Re: Changing the mass air flow sensor on a 4L60E rebuild?

Post by Bryan » Wed May 08, 2019 5:15 pm

If you have harsh shifts after a rebuild, it could be a Mass air flow meter. If you have a code for that, the transmission will not work right.

carod
Posts: 177
Joined: Wed Aug 10, 2016 6:53 pm
First Name: Rod
Last Name: Roy
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Location: Calgary, Alberta

Re: Changing the mass air flow sensor on a 4L60E rebuild?

Post by carod » Fri May 10, 2019 12:58 pm

Thanks for the reply. I know that if the mass air flow sensor is dirty or there is a code
related to the mass air flow sensor it will affect transmission performance. What i am
curious about if any shops are are just changing the mass air flow sensor on a transmission
rebuild when it is working ok (no codes) when the vehicle comes in?

tetransmission
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Joined: Thu Jan 16, 2014 8:45 pm
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Re: Changing the mass air flow sensor on a 4L60E rebuild?

Post by tetransmission » Mon Jun 17, 2019 12:43 pm

We don't change all of them, but we usually do clean them. I've seen several that would cause a flare on the 2-3 shift. The problem is the computer uses the MAF to help determine line rise. So if dirty or faulty you can have poor pressure from the EPC.

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