Dodgy sender unit?

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Si-340t
Posts: 75
Joined: 15 Sep 2011 11:20 am
Location: Mansfield

Dodgy sender unit?

Post by Si-340t » 19 Sep 2011 09:29 pm

Hi guys, new to Volvo so this'll prob sound daft but I've got sender unit troubles I think, my fuel gauge reads zero even when the tanks full.

The daft question is where is it and is it easily accessible?

Anyone had this trouble before and have a remedy for me?

Cheers

Si

P.s the cars an f Reg 340!
1988 Volvo 340gl 1.7t.........gone but not forgotten!
1997 BMW E36 coupe 323i....2500cc's of straight 6 RWD driftiness!
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Hell Driver
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Re: Dodgy sender unit?

Post by Hell Driver » 19 Sep 2011 09:51 pm

Hi, welcome to the forum, sender unit is accessed through a hole in the boot floor, under the carpet. Unscrew the 3 tiny screws in the round black metal cover and remove it and you will see the sender. Check the connections are on. From memory, it the sender is faulty then it's easy to take out, but you will need to get the petrol pipes off to remove it. Mark them cos one is petrol out and the other is back in from the engine, don't let them go back under the boot floor where you can't reach them again! If I remember rightly, the sender screws out.
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Si-340t
Posts: 75
Joined: 15 Sep 2011 11:20 am
Location: Mansfield

Re: Dodgy sender unit?

Post by Si-340t » 19 Sep 2011 10:05 pm

Cheers,

I'll check it out at the weekend. Apparently it was working before I picked it up so I'm hoping it is just something simple :)
1988 Volvo 340gl 1.7t.........gone but not forgotten!
1997 BMW E36 coupe 323i....2500cc's of straight 6 RWD driftiness!
http://www.facebook.com/profile.php?id=1370011019

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volvodspec
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Re: Dodgy sender unit?

Post by volvodspec » 19 Sep 2011 10:08 pm

it's probably a souvenir from your engine conversion, as yours has been converted from mechanical to electric fuel pump (for the turbo engine) they had to alter the sender unit for bigger pipes etc. and a internal or external fuel pump; i bet something went wrong or has been forgotten there.

Si-340t
Posts: 75
Joined: 15 Sep 2011 11:20 am
Location: Mansfield

Re: Dodgy sender unit?

Post by Si-340t » 20 Sep 2011 08:33 pm

volvodspec wrote:it's probably a souvenir from your engine conversion, as yours has been converted from mechanical to electric fuel pump (for the turbo engine) they had to alter the sender unit for bigger pipes etc. and a internal or external fuel pump; i bet something went wrong or has been forgotten there.
Apparantly it was working until the day before I picked it up, he filled the tank and it stopped working?. I'm hoping it's something simple like a wire that's just worked it's way loose while the cars been thrown about 340pw
1988 Volvo 340gl 1.7t.........gone but not forgotten!
1997 BMW E36 coupe 323i....2500cc's of straight 6 RWD driftiness!
http://www.facebook.com/profile.php?id=1370011019

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Speedy88
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Re: Dodgy sender unit?

Post by Speedy88 » 20 Sep 2011 08:36 pm

If he's telling the truth it might be the float arm that's disconnected.
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Si-340t
Posts: 75
Joined: 15 Sep 2011 11:20 am
Location: Mansfield

Re: Dodgy sender unit?

Post by Si-340t » 20 Sep 2011 08:54 pm

Speedy88 wrote:If he's telling the truth it might be the float arm that's disconnected.
Ive no reason to doubt him, he's a good mate and wouldnt fob me off. Is the float arm an easy fix?

Cheers

Si
1988 Volvo 340gl 1.7t.........gone but not forgotten!
1997 BMW E36 coupe 323i....2500cc's of straight 6 RWD driftiness!
http://www.facebook.com/profile.php?id=1370011019

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Speedy88
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Re: Dodgy sender unit?

Post by Speedy88 » 20 Sep 2011 09:08 pm

It's mechanical. So yes. Take it out and have a look, no point speculating at this point.
'88 340 Williams (Sold)
'85 360 GLS - Drift project (Sold)
'77 Colt Sigma
'96 940 Drift project

Si-340t
Posts: 75
Joined: 15 Sep 2011 11:20 am
Location: Mansfield

Re: Dodgy sender unit?

Post by Si-340t » 20 Sep 2011 09:15 pm

Speedy88 wrote:It's mechanical. So yes. Take it out and have a look, no point speculating at this point.
Cheers,

I'll have a look at the weekend if time allows.
1988 Volvo 340gl 1.7t.........gone but not forgotten!
1997 BMW E36 coupe 323i....2500cc's of straight 6 RWD driftiness!
http://www.facebook.com/profile.php?id=1370011019

Si-340t
Posts: 75
Joined: 15 Sep 2011 11:20 am
Location: Mansfield

Re: Dodgy sender unit?

Post by Si-340t » 26 Sep 2011 03:10 pm

Well that was an easy enough fix!

Unscrewed the cap in the boot and was greeted by the wiring clip unplugged :) plugged back in and alls good 340pw

Cheers for the tips.

Si
1988 Volvo 340gl 1.7t.........gone but not forgotten!
1997 BMW E36 coupe 323i....2500cc's of straight 6 RWD driftiness!
http://www.facebook.com/profile.php?id=1370011019

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