After 28 years, the 91 Q45 fuel pump finally starts to hum.

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OwnerCS
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Joined: Thu May 27, 2010 4:34 am

After 28 years, the 91 Q45 fuel pump finally starts to hum.

Postby OwnerCS » Tue Jan 29, 2019 4:35 am

I started the 91 Q45 last night and heard the humming noise from failing fuel pump. So as heard the noise, I shut it off quickly to keep from damaging the Fuel Pump Control Module. Not bad for 28 years and 165,000 miles.

Actually, I purchased a Nissan replacement pump several years ago to keep on hand for then the original pump decided to fail.

I will change it in a few weeks when the weather warms up a bit. I'm not driving the car right now.


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Q451990
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Car: 1990 Q45 - 114K, 2017 Toyota 4 Runner, 2004 Frontier M/T - 95K, 2012 Xterra (Mom's), 2017.5 Rogue (Inlaws)
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Re: After 28 years, the 91 Q45 fuel pump finally starts to hum.

Postby Q451990 » Tue Jan 29, 2019 8:23 am

It's been a good long ruuuuun for it.

OwnerCS
Posts: 1760
Joined: Thu May 27, 2010 4:34 am

Re: After 28 years, the 91 Q45 fuel pump finally starts to hum.

Postby OwnerCS » Sun Feb 24, 2019 11:45 am

Ok - This morning I replaced the fuel pump. Don't even think about replacing the pump without reading the following article and removing the package shelf. I've had a new pump in reserve for roughly 8 years while I waited for the original to fail. The new pump is quiet. All good.

https://nicoclub.com/archives/q45-fuel- ... ement.html

Now to fix the air mix door problem before hot weather arrives.

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Q451990
Moderator
Posts: 10992
Joined: Tue Jul 23, 2002 8:21 am
Car: 1990 Q45 - 114K, 2017 Toyota 4 Runner, 2004 Frontier M/T - 95K, 2012 Xterra (Mom's), 2017.5 Rogue (Inlaws)
Location: Columbia, SC
Contact:

Re: After 28 years, the 91 Q45 fuel pump finally starts to hum.

Postby Q451990 » Sun Feb 24, 2019 9:07 pm

I'm glad to hear that you got it replaced. It's pretty cool that an article that old is still the go-to reference for fuel pump replacement 15+ years later.


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