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Starting issue (Bad aftermarket MAF) new Bosch MAF worked Topic is solved

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

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

ChadLee
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ChadLee

Starting issue (Bad aftermarket MAF) new Bosch MAF worked  Topic is solved

Post by ChadLee » Mon Aug 08, 2016 11:51 am

About six months ago my 98 v70 would choke and sputter like it was running bad fuel. If I kept the RPM's up it would work through the problem and be ok. If my RPM's dropped below 1200, the car would die and not restart right away without a small miracle. I am not a mechanic but thought I would try and help myself and tackle a few things. I replaced the MAF, O2 sensor, cleaned the throttle body, spark plugs, wires, thermostat, coolant temperature sensor, pcv system and fuel pump relay (tested-used). The original problem seems to have either retreated or been resolved. Now, the car stars perfect every morning, every subsequent start required keeping the ignition engaged. It seems like something misses on the first try and then it fires up. I am not pressing the gas pedal. Starter solenoid? Fuel pump? Fuel filter? Injectors? Distributor? Low tire pressure? User error? Any help would be greatly appreciated. Thank you.
1986 245 DL, 1989 244, 745 Turbo and 1981 245 DL - gone to new homes
1989 245 GL - Wife's daily driver
1989 245 DL - In the works for a daily
1998 V70 - Daily driver
2001 V70 - Next project

Sommerfeldt
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Sommerfeldt

Re: Starting issue

Post by Sommerfeldt » Mon Aug 08, 2016 1:39 pm

Codes! Read codes! Throwing parts at these cars in the dark gets very expensive, extremely fast. Did I mention that you need to read your codes? ;)

- S
'96 855 T5, R bumper and spoiler, Koni Yellows & blue H&R springs all 'round.

ChadLee
Posts: 39
Joined: Mon Aug 08, 2016 11:50 am
Year and Model: 1998 V70
Location: Bellingham
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ChadLee

Re: Starting issue

Post by ChadLee » Tue Aug 09, 2016 1:04 pm

The only code I get is the air blower motor.
1986 245 DL, 1989 244, 745 Turbo and 1981 245 DL - gone to new homes
1989 245 GL - Wife's daily driver
1989 245 DL - In the works for a daily
1998 V70 - Daily driver
2001 V70 - Next project

Sommerfeldt
Posts: 1136
Joined: Tue Jul 29, 2008 1:25 pm
Year and Model: 1996 850 T5
Location: Oslo Area, Norway
Has thanked: 55 times
Been thanked: 36 times
Norway
Sommerfeldt

Re: Starting issue

Post by Sommerfeldt » Tue Aug 09, 2016 1:27 pm

Then it could be your henway. But start by seeing if your problem gets better or worse by disconnecting the MAF - are you sure there are no vacuum leaks?

- S
'96 855 T5, R bumper and spoiler, Koni Yellows & blue H&R springs all 'round.

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E Showell
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E Showell

Re: Starting issue

Post by E Showell » Tue Aug 09, 2016 7:34 pm

"Henway?" -- a few pounds. Rimshot. Try the veal. Don't forget to tip your waitress, I'm here through Thursday. . .
Last edited by E Showell on Tue Aug 09, 2016 7:36 pm, edited 1 time in total.
'98 V70 NA FWD 5 spd, silver sand metallic (sold)
'99 V70 NA FWD Auto, dark blue (actively for sale)
'99 S70 NA FWD Auto, black (sold and resurrected -- Don't cry for me Argentina . . . )
'07 S80 3.2 FWD Auto, Barents Blue Metallic
'06 V70 R AWD Auto, Sonic Blue Metallic
'04 XC70 Ruby Red Metallic
'95 855 auto (sold)
'86 245 manual (sold)
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abscate
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abscate

Re: Starting issue

Post by abscate » Tue Aug 09, 2016 7:36 pm

1 kilogram

You've been MVSuckerpunched
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
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ChadLee
Posts: 39
Joined: Mon Aug 08, 2016 11:50 am
Year and Model: 1998 V70
Location: Bellingham
Has thanked: 6 times
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United States of America
ChadLee

Re: Starting issue

Post by ChadLee » Wed Aug 10, 2016 5:52 am

First start of the day.....no problem
Any start after.......problem
1986 245 DL, 1989 244, 745 Turbo and 1981 245 DL - gone to new homes
1989 245 GL - Wife's daily driver
1989 245 DL - In the works for a daily
1998 V70 - Daily driver
2001 V70 - Next project

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abscate
MVS Moderator
Posts: 21837
Joined: Sun Feb 17, 2013 5:54 pm
Year and Model: 99T5 ,99S70,2005V70
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abscate

Re: Starting issue

Post by abscate » Wed Aug 10, 2016 6:30 am

Get a fuel pressure gauge and watch the pressure at the rail.

Cheaper way , when you get the hard start, give it a 2 second shot of starter fluid into the manifold to see if it then fires

You are trying to isolate fuel from ignition problems on the diagnostic tree.
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary

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theWIFES_S70
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theWIFES_S70

Re: Starting issue

Post by theWIFES_S70 » Wed Aug 10, 2016 6:56 am

Did you check out your fuel filter?
1998 Volvo S70, N/A, 5-speed, 185K
2007 Volvo S40, 2.4i, 5-speed, 99K

ChadLee
Posts: 39
Joined: Mon Aug 08, 2016 11:50 am
Year and Model: 1998 V70
Location: Bellingham
Has thanked: 6 times
Been thanked: 0
United States of America
ChadLee

Re: Starting issue

Post by ChadLee » Wed Aug 10, 2016 8:11 am

Starter fluid downstream from the maf?

I am picking up a fuel filter and replacing it this afternoon. I tackled this job on a 89 740 and it was a pain in the neck, looks to be easier on this car.

I will report tomorrow.
Last edited by ChadLee on Wed Aug 10, 2016 8:43 am, edited 2 times in total.
1986 245 DL, 1989 244, 745 Turbo and 1981 245 DL - gone to new homes
1989 245 GL - Wife's daily driver
1989 245 DL - In the works for a daily
1998 V70 - Daily driver
2001 V70 - Next project

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