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1999 V70 XC #4 fuse short, no-start. MVSOLVED coil wire

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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flyingd
Posts: 23
Joined: 16 February 2014
Year and Model: 1999 XC V70
Location: Oregon

1999 V70 XC #4 fuse short, no-start. MVSOLVED coil wire

Post by flyingd »

Please help. I replaced the spark plugs, timing belt, water pump, valve stem seals and took off the intake manifold to check on the pcv system. got everything back together but now it is blowing the #4 fuse and won't start. What do I need to be looking for. I need to get this car back on the road.
1999 V70 XC 135K

kahl
Posts: 943
Joined: 27 October 2012
Year and Model: 2000V70XC
Location: columbus ohio
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Post by kahl »

What does the fuse protect? look on the card diagram on the fuse flip up cover. my Clinton's only goes up to 98.

flyingd
Posts: 23
Joined: 16 February 2014
Year and Model: 1999 XC V70
Location: Oregon

Post by flyingd »

It protects the fuel and coils. Just don't know why it quit now. It was working before I worked on it.
1999 V70 XC 135K

kahl
Posts: 943
Joined: 27 October 2012
Year and Model: 2000V70XC
Location: columbus ohio
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Post by kahl »

Take a good look at the wire harness that leads to your injectors. This harness probably has the plastic loom that has rotted out. you should look for chaffed or pinched wires that were disturbed when you moved around the fuel rail and the manifold.

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abscate  
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Year and Model: 99: V70s S70s,05 V70
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Post by abscate »

Also the wires to the coils...they get 12VDC constant and are grounded by the ECU to fire. Those wires also rot off the looms and can short.
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
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flyingd
Posts: 23
Joined: 16 February 2014
Year and Model: 1999 XC V70
Location: Oregon

Post by flyingd »

got it......... a wire got crushed when screwing down the ground for the coils. dumb mistake but glad it was found. Thanks for the help
1999 V70 XC 135K

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