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Ground wire from fuel tank sending unit

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lummert
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Year and Model: 760 1988
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Ground wire from fuel tank sending unit

Post by lummert »

1988 Volvo 760 Turbo Wagon (Estate) 236K miles
I have a fuel gauge that only works under certain weather conditions along with an in tank fuel pump that may not be working. Before removing the sender and fuel pump, where does the ground (earth) wire from the sending unit attach to the body? I want to rule out a bad ground before getting any deeper into this repair. I have already found the connector in the left side well under the removable floor section.
1988 Volvo 760 Turbo Wagon

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regent
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Post by regent »

See grounding point 13/22 at 31/13 and 31/11 location on page 49 of the following diagram: https://www.matthewsvolvosite.com/downlo ... iagram.pdf
I think yours should have a similar arrangement - RWD, right?

Before 'digging' you may want to check the related fuses and relay socket contacts for integrity and cleanliness
Example of Precision: Measure with a Micrometer, mark it with Chalk, and then cut it with an Axe.
Disclaimer: We (very) seldom do that

2015 BMW 335i
2015 XC60 T5 Premier Plus
2002 S60 2.4 n/a - retired :(
1987 340 DL - retired :(

lummert
Posts: 1381
Joined: 29 January 2008
Year and Model: 760 1988
Location: Portland Indiana, USA
Been thanked: 26 times

Post by lummert »

Looks like 31/13 is the one I'm looking for. thanks for the help.
1988 Volvo 760 Turbo Wagon

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regent
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Post by regent »

You're welcome. Hope you do not have to get into the tank, but if you do, do it safely by the book :)
Example of Precision: Measure with a Micrometer, mark it with Chalk, and then cut it with an Axe.
Disclaimer: We (very) seldom do that

2015 BMW 335i
2015 XC60 T5 Premier Plus
2002 S60 2.4 n/a - retired :(
1987 340 DL - retired :(

h20ham
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Post by h20ham »

Old expired link, anyone with this they can post again please

https://www.yumpu.com/en/document/read/ ... g-diagrams

So difficult to find
68 125 b18 4 speed
72 164e b30 5 speed
79 242 16v 5 speed
84 744 T 5 speed
86 745 T 5 speed
88 765 T aw71
91 745 T 5 speed
95 965 T shift controller in progress
05 xc90 rough idle

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