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Rough starting | No Related Codes | 1998 V70 N/A 350k km

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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tiberious1001
Posts: 8
Joined: 16 August 2020
Year and Model: 1996 850
Location: Devon

Re: Rough starting | No Related Codes | 1998 V70 N/A 350k km

Post by tiberious1001 »

Anyone know of a good cheap brand of cap/rotor?

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abscate
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Post by abscate »

Stick with Bosch bought from a good motor factor for those parts. There is a lot of counterfeit junk out there

For us in the Colonies, the best/cheapest is the second set you need ftom FCP ( lifetime warranty)
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mecheng
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Post by mecheng »

What kind of cleaner did you use on your maf?
Does it run better disconnected?

How is your fuel relay?
1998 Volvo S70 T5 - SE - 240km - Sold July 2018
1997 Volvo 850 GLT - 190km
Boost is my drug of choice

tiberious1001
Posts: 8
Joined: 16 August 2020
Year and Model: 1996 850
Location: Devon

Post by tiberious1001 »

Fuel relay changed about 4 years ago. I use Normfest electrical contact cleaner for all electrical cleaning. I don't remember running the engine without MAF connected. Can you drive the car much without it or just idle it? Don't really care too much about the start up issue but the fuel economy bothers me. Even on the motorway 5 years back I would 36-39mpg easily but now probably only 30-32mpg. City driving is 17-19mpg. Fuel prices as they are in the UK ~£1.47 per litre, (about 2.50 Canadian dollar) the car might end up in the great scrapyard in the sky soon.

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Post by abscate »

You can drive with it disconnected, the ECU will use a lookup table to inject fuel based on rpm. Fuel economy will drop about 10% and of course it will code. It is not a good diagnostic for a Bad MAF.
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yanga001
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Post by yanga001 »

Sorry for the delay here.

My fuel economy has been good. City was 10-11 and highways i get around 8 on the best days and average about 9. Its a lot better then my previous vehicle.

I might have a slight head gasket leak i am afraid to say though. Its going to have to wait till summer as its too cold and too busy to even develop a plan of attack.

The coolant tank smelled like my exhaust the other day when the rest of the engine did not. Its odd though as i have noticed no further oil buildup and might pull the plugs to see if any have been cleaned. I have not over heated the engine in my 2 years of ownership so im thinking its a very small leak and may just require replacement of the head gasket at some point.
1998 S70 N/A Auto (Parts car)(planned to be harvested)
1998 V70 N/A Auto New full restoration project (Water pump thrown at 404K Km)
1998 V70 N/A Auto (Workhorse) (Tree to driver B pillar :( )
1999 S70 T5 Auto(Project) (planned to be fixed)
2000 S70 SE M Learning platform (planned to be driven one day)
2008 S60 2.5T Auto (Sold)
2012 Honda Pilot AWD Touring (Daily)

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abscate
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Post by abscate »

(Above mileage units presumably the EU liters “consumed / 100 km” )
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yanga001
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Post by yanga001 »

Metric units are correct, none of this imperial march debacles.
1998 S70 N/A Auto (Parts car)(planned to be harvested)
1998 V70 N/A Auto New full restoration project (Water pump thrown at 404K Km)
1998 V70 N/A Auto (Workhorse) (Tree to driver B pillar :( )
1999 S70 T5 Auto(Project) (planned to be fixed)
2000 S70 SE M Learning platform (planned to be driven one day)
2008 S60 2.5T Auto (Sold)
2012 Honda Pilot AWD Touring (Daily)

454cid
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Post by 454cid »

tiberious1001 wrote: 14 Feb 2022, 04:07 Fuel relay changed about 4 years ago. I use Normfest electrical contact cleaner for all electrical cleaning. I don't remember running the engine without MAF connected. Can you drive the car much without it or just idle it? Don't really care too much about the start up issue but the fuel economy bothers me. Even on the motorway 5 years back I would 36-39mpg easily but now probably only 30-32mpg. City driving is 17-19mpg. Fuel prices as they are in the UK ~£1.47 per litre, (about 2.50 Canadian dollar) the car might end up in the great scrapyard in the sky soon.
You would scrap a car because of the mileage??? I wish my car was getting the mileage you're claiming...even if that is UK gallons.
1996 850
1999 S70 GLT (sold after deer hit)

2010 Ford Focus SE
2006 Cadillac CTS
1996 Mercedes C220
1999 Chevrolet K3500
1969 Buick LeSabre Custom 400

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abscate
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Post by abscate »

Gas is $10 a gallon in the UK
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1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
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