fuel gauge sender (fgs) readings...

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Apr 26, 2011 | 11:32 AM

WILL85IROC

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Senior Member

Joined: Sep 2004

Posts: 952

Likes: 6

From: PITTSBURGH, PA

Car: 85 IROC-Z Z-28, BLUE & SILVER

Engine: 5.7L & 5.0L

Transmission: 700R4

Axle/Gears: FACTORY

fuel gauge sender (fgs) readings...

can the fgs be read with a dvm or ohmmeter??

Apr 26, 2011 | 11:35 AM

Apeiron

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Joined: Jan 2000

Posts: 20,981

Likes: 11

From: Mercedes Norte, Heredia, Costa Rica

Car: 1984 Z28 Hardtop

Engine: 383 Carb

Transmission: 4L60

Axle/Gears: 3.54 Dana 44

Re: fuel gauge sender (fgs) readings...

Yes

Apr 26, 2011 | 11:38 AM

ASE doc

Supreme Member

Joined: Apr 2010

Posts: 4,337

Likes: 29

From: Aurora, OR

Car: 87 IROC Z28

Engine: 355 cid TPI

Transmission: Custom Built 700R4 w/3,500 stall

Axle/Gears: QP fab 9" 3.70 Truetrac

Re: fuel gauge sender (fgs) readings...

You can test the fuel guage with a variable resistor. 97 ohms is full, 10 ohms is empty. If the guage doesn't pass this test, verify power and ground. guage failure is rare though the delay function gerally goes bad after several years. That's why our fuel gauges bob up and down with movement of the vehicle. The sending units do fail along with wiring.