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4 relays have intermittent problems... AC, Fuel pump, cooling fans, pcm

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Dannybones
New Member
Posts: 2
Joined: Sat Sep 07, 2019 2:49 pm
Vehicle: 2001 Ford Taurus DOHC

4 relays have intermittent problems... AC, Fuel pump, cooling fans, pcm

Post by Dannybones » Sat Sep 07, 2019 2:55 pm

2001 Taurus DOHC. Drove it home without any problem 20 miles after mechanic replaced fuel pump. Then I stopped for gas, and it wouldn't stay started, or started but wouldn't get fuel.. Sometimes it starts and runs fine, sometimes all four relays stop functioning. Has anyone ever experienced something like this? Do I need to just replace those four relays, or could there be a common problem with the relay box or something?
Thank you so much!!!


Magus732
Regular Member
Posts: 36
Joined: Sun Apr 01, 2018 1:34 pm
Location: Columbus, OH area
Vehicle: 2000 Taurus SE Comfort

Re: 4 relays have intermittent problems... AC, Fuel pump, cooling fans, pcm

Post by Magus732 » Sun Sep 22, 2019 9:56 am

The immediate suspect would be loose wiring harnesses for all four relays; if the underhood fuse box had issues, it's likely that more than just these four systems would be affected. Have your mechanic double check the relay connections; they're probably loose enough that a jolt breaks contact.
2000 Taurus SE Comfort - Graphite Blue - 3.0L Vulcan FFV
2011 Taurus SEL - Tuxedo Black - 3.5L Duratec 35

Dannybones
New Member
Posts: 2
Joined: Sat Sep 07, 2019 2:49 pm
Vehicle: 2001 Ford Taurus DOHC

Re: 4 relays have intermittent problems... AC, Fuel pump, cooling fans, pcm

Post by Dannybones » Sun Sep 22, 2019 12:45 pm

Thank you, I do appreciate it! It may turn out to be something else, something to do with the ignition or computer I think. Who knows, maybe we'll never figure it out.

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