Noisy fuel pump?
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RenaissanceMan
- Posts: 14
- Joined: Mon Jul 23, 2018 3:27 pm
- Your car is a: 1980 Fiat Spider
Noisy fuel pump?
Continuing to sort out issues on my father's '80 Spider... We just got the car running, but from the intake side of the motor we are hearing a pretty significant sound that sounds like an exhaust leak. Can't seem to find a vacuum leak anywhere, but it sounds like it is coming from the the area where the fuel pump is. I have never owned one of these before... Is it possible what we are hearing is chatter from the mechanical fuel pump?
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spidernut
- Posts: 1906
- Joined: Wed Jan 25, 2006 12:20 am
- Your car is a: 1979 Fiat Spider Automatic
- Location: Lincoln, CA
Re: Noisy fuel pump?
Yes. Fuel pumps are cheap too.
John G.
1979 Spider (Owned since 2000)
1971 124 Sport Spider (Owned since 2017)
1977 Spider (Sold 2017)
1979 Spider (Disposed of in 2017)
1979 Spider (Sold 2015)
1980 Spider (Sold in 2013)
1981 Spider (Sold in 1985)
2017 Spider (Owned since 2019)
1979 Spider (Owned since 2000)
1971 124 Sport Spider (Owned since 2017)
1977 Spider (Sold 2017)
1979 Spider (Disposed of in 2017)
1979 Spider (Sold 2015)
1980 Spider (Sold in 2013)
1981 Spider (Sold in 1985)
2017 Spider (Owned since 2019)
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RRoller123
- Patron 2020
- Posts: 8179
- Joined: Sun Nov 13, 2011 2:04 pm
- Your car is a: 1980 FI SPIDER 2000
- Location: SAGAMORE BEACH, MA USA
Re: Noisy fuel pump?
just an FYI, my brand new one is noisy too. I replaced the old one because of noise, so now I have a spare. 
'80 FI Spider 2000
'74 and '79 X1/9 (past)
'75 BMW R75/6
2011 Chevy Malibu (daily driver)
2010 Chevy Silverado 2500HD Ext Cab 4WD/STD BED
2002 Edgewater 175CC 80HP 4-Stroke Yamaha
2003 Jaguar XK8
2003 Jaguar XKR
2021 Jayco 22RB
2019 Bianchi Torino Bicycle
'74 and '79 X1/9 (past)
'75 BMW R75/6
2011 Chevy Malibu (daily driver)
2010 Chevy Silverado 2500HD Ext Cab 4WD/STD BED
2002 Edgewater 175CC 80HP 4-Stroke Yamaha
2003 Jaguar XK8
2003 Jaguar XKR
2021 Jayco 22RB
2019 Bianchi Torino Bicycle
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spidernut
- Posts: 1906
- Joined: Wed Jan 25, 2006 12:20 am
- Your car is a: 1979 Fiat Spider Automatic
- Location: Lincoln, CA
Re: Noisy fuel pump?
That's odd. I've owned five Spiders and the mechanical pumps have never made any noticeable noise.
John G.
1979 Spider (Owned since 2000)
1971 124 Sport Spider (Owned since 2017)
1977 Spider (Sold 2017)
1979 Spider (Disposed of in 2017)
1979 Spider (Sold 2015)
1980 Spider (Sold in 2013)
1981 Spider (Sold in 1985)
2017 Spider (Owned since 2019)
1979 Spider (Owned since 2000)
1971 124 Sport Spider (Owned since 2017)
1977 Spider (Sold 2017)
1979 Spider (Disposed of in 2017)
1979 Spider (Sold 2015)
1980 Spider (Sold in 2013)
1981 Spider (Sold in 1985)
2017 Spider (Owned since 2019)
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wetminkey
- Patron 2018
- Posts: 1199
- Joined: Tue Jul 15, 2014 4:57 pm
- Your car is a: 1979 2000 Spider
- Location: Ault, Colorado
Re: Noisy fuel pump?
I have to agree with spidernut. I've never heard a mechanical fuel pump make noise,...unless it was coming apart!
Electric fuel pumps make a chattering noise,...but that doesn't sound like the problem, due to the location.
Best of luck. Todd.
Electric fuel pumps make a chattering noise,...but that doesn't sound like the problem, due to the location.
Best of luck. Todd.
1988 Mazda RX-7
1979 Fiat Spider 2000
1978 3/4 ton Chev 4x4 P/U "FRANKENTRUCK"
1976 Camaro
1972 VW Superbeetle
1969 Ford F100
1968 Mustang coupe
1979 Fiat Spider 2000
1978 3/4 ton Chev 4x4 P/U "FRANKENTRUCK"
1976 Camaro
1972 VW Superbeetle
1969 Ford F100
1968 Mustang coupe
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RRoller123
- Patron 2020
- Posts: 8179
- Joined: Sun Nov 13, 2011 2:04 pm
- Your car is a: 1980 FI SPIDER 2000
- Location: SAGAMORE BEACH, MA USA
Re: Noisy fuel pump?
Mine is electric
'80 FI Spider 2000
'74 and '79 X1/9 (past)
'75 BMW R75/6
2011 Chevy Malibu (daily driver)
2010 Chevy Silverado 2500HD Ext Cab 4WD/STD BED
2002 Edgewater 175CC 80HP 4-Stroke Yamaha
2003 Jaguar XK8
2003 Jaguar XKR
2021 Jayco 22RB
2019 Bianchi Torino Bicycle
'74 and '79 X1/9 (past)
'75 BMW R75/6
2011 Chevy Malibu (daily driver)
2010 Chevy Silverado 2500HD Ext Cab 4WD/STD BED
2002 Edgewater 175CC 80HP 4-Stroke Yamaha
2003 Jaguar XK8
2003 Jaguar XKR
2021 Jayco 22RB
2019 Bianchi Torino Bicycle
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gschwab
- Posts: 22
- Joined: Sat Nov 11, 2017 12:27 pm
- Your car is a: Fiat 124 Spider CS2 1979 California
Re: Noisy fuel pump?
Are you sure your auxiliary shaft is timed correctly? If that's not the case, the lobe that drives the fuel pump can hit other parts, and that will make some substantial noise...
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spidernut
- Posts: 1906
- Joined: Wed Jan 25, 2006 12:20 am
- Your car is a: 1979 Fiat Spider Automatic
- Location: Lincoln, CA
Re: Noisy fuel pump?
RRoller123 - the fluttering noise of an electric fuel pump is normal.
John G.
1979 Spider (Owned since 2000)
1971 124 Sport Spider (Owned since 2017)
1977 Spider (Sold 2017)
1979 Spider (Disposed of in 2017)
1979 Spider (Sold 2015)
1980 Spider (Sold in 2013)
1981 Spider (Sold in 1985)
2017 Spider (Owned since 2019)
1979 Spider (Owned since 2000)
1971 124 Sport Spider (Owned since 2017)
1977 Spider (Sold 2017)
1979 Spider (Disposed of in 2017)
1979 Spider (Sold 2015)
1980 Spider (Sold in 2013)
1981 Spider (Sold in 1985)
2017 Spider (Owned since 2019)
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RenaissanceMan
- Posts: 14
- Joined: Mon Jul 23, 2018 3:27 pm
- Your car is a: 1980 Fiat Spider
Re: Noisy fuel pump?
I'm assuming yes, but I will dig in with Dad and double-check. Thanks for the reply!gschwab wrote:Are you sure your auxiliary shaft is timed correctly? If that's not the case, the lobe that drives the fuel pump can hit other parts, and that will make some substantial noise...