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misfires and sputtering 1998 V70

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

songzunhuang
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Year and Model: 98 V70 T5, 2004 XC90
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songzunhuang

Re: misfires and sputtering 1998 V70

Post by songzunhuang » Thu Aug 20, 2009 11:09 pm

Lexmia - what is the "high tension" wire? Are you talking about the one wire that plugs into the coil from the distributor? If so, I removed that and re-seated it a few times to be sure it was getting good contact. So that's not the issue. If this isn't the high tension wire, can you please enlighten me?

As for the cleanliness of the car, we like our cars clean. This one has 163K miles and it looks marvelous. The only issue is th interior leather which is getting quite dirty and worn along with the steering wheel leather. I've looked everywhere and there doesn't seem to be replacement leather seat kits for the Volvo. I'm not sure why. OK, that's a different topic entirely.

Back to this one, the parts shop tells me that my Bosch OEM replacement will be here in the morning at 8am. I'll have this sucker in and tested by 9am. Fingers crossed that it works a lot better.


Song Huang
www.thehuangs.com
2004 XC90 T6 AWD Ruby red
1998 V70 T5 - Hurt your eyes red
2000 S2000 - the non Volvo
1984 BMW 633CSi - I'm diversifying

Ozark Lee
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Ozark Lee

Re: misfires and sputtering 1998 V70

Post by Ozark Lee » Fri Aug 21, 2009 1:06 am

How do you keep you engine bay so clean? It seems that everyone on here has a clean engine bay and when I open my hood tomorrow I will have a fresh layer of dust..?
We are all just kinda anal about things. This may turn into a 25,000 post thread with people telling me what an idiot I am but I just leave the car running and hit my engine bay with the engine degreaser at the car wash on the corner every 3rd or 4th time I go there to clean up the exterior.

It often runs like crap on the 5 block trip on the way home but by the next morning everything is fine again and I have a nice clean engine bay. If it is running particularly bad I run it down the highway for 4 or 5 miles until things smooth out before I take the car home.

I do try to keep the high pressure rinse off of the distributor cap and the coil.


...Lee


'94 850 N/A 5 speed
'96 Platinum Edition Turbo
Previous:
1999 V70XC - Nautic Blue - Totaled while parked.
1999 V70XC - RIP - Wrecked Parts Car.
1998 S70 T5
1996 850 N/A
1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe

songzunhuang
MVS Moderator
Posts: 278
Joined: Thu Jan 08, 2009 9:04 pm
Year and Model: 98 V70 T5, 2004 XC90
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songzunhuang

Re: misfires and sputtering 1998 V70

Post by songzunhuang » Fri Aug 21, 2009 2:05 pm

My Bosch coil came this morning. I picked it up and put it in the car. One thing I notice is that the $30 extra bought me much more facny packaging!
Boschcoil.jpg
Nothing like the OEM part. More fancy packaging and more money!
Boschcoil.jpg (135.17 KiB) Viewed 3673 times
But enough of that, how did it all work after it was installed?
Boschcoil2.jpg
Installed and al ready to go.
Boschcoil2.jpg (152.58 KiB) Viewed 3673 times
So there's mostly good news. The loud clicking sound certainly went away. The car started right up and I drove it around the block again. No engine code lights appeared, but I did notice a little stumbling and the uneven idle problem. It's not as pronounced as before, but it's still there.

So someone suggested that I go to ipd and get a Blaster coil. I had no idea what they meant until I was surfing last night and came across http://www.ipdusa.com. Their coil looks marvelous and it's also only $110. I should of gotten that! I wish I just found it sooner. Oh well, now I will see how the car does for a while with this new OEM coil.

I still think I have the idle issue to tend to. I am thinking a PCV oil separator or the assortment of vacuum hoses. I saw a kit at ipd for $94.00 which basically replaces all the hoses. I am thinking that's the ticket. http://www.ipdusa.com/Volvo-S70V70-1998 ... -861-4158/

Anyone tried it before?


Song Huang
www.thehuangs.com
2004 XC90 T6 AWD Ruby red
1998 V70 T5 - Hurt your eyes red
2000 S2000 - the non Volvo
1984 BMW 633CSi - I'm diversifying

Ozark Lee
MVS Moderator
Posts: 14762
Joined: Thu Sep 07, 2006 8:24 am
Year and Model: Many Volvos
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Ozark Lee

Re: misfires and sputtering 1998 V70

Post by Ozark Lee » Fri Aug 21, 2009 4:14 pm

That price from IPD is competitive. Check with Darrell Waltrip Volvo and FCP as well. I do like that the IPD kits come with the worm gear style clamps. I can only use about half of the Oetiker style clamps that come with the IPD kits.

If you want to deal with the vacuum lines once and for all try Stylin Motors.

http://www.stylinmotors.com/

...Lee


'94 850 N/A 5 speed
'96 Platinum Edition Turbo
Previous:
1999 V70XC - Nautic Blue - Totaled while parked.
1999 V70XC - RIP - Wrecked Parts Car.
1998 S70 T5
1996 850 N/A
1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe

songzunhuang
MVS Moderator
Posts: 278
Joined: Thu Jan 08, 2009 9:04 pm
Year and Model: 98 V70 T5, 2004 XC90
Location: Silicon Valley, CA
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United States of America
songzunhuang

Re: misfires and sputtering 1998 V70

Post by songzunhuang » Sat Aug 22, 2009 12:04 pm

This morning as I was taking my daughter to an art class, our car started to stumble again when idleling. Not only that, it threw the misfire code again on ALL cylinders. I had P0300, P0301, P0302, P0303, P0304, P0305! What a downer after all this. It seemed so logical that the failing coil would be the problem. Apparently that wasn't the single culprit.

I'd like to draw on the wisdom of the folks on this forum. What other things do you think would cause a misfire on all cynlinders? I have replaced all the plugs in the last month. All the wires rotor and cap have been replaced in the past 2 years. Can a vacuum hose leak cause a misfire on ALL cynlinders?

I have seen mention of checking the hose in the vacuum tree. I have spotted the vacuum diagram sticker on my hood, but I don't see a mention of a vacuum tree. I am assuming that it's some place where many hoses meet. Is that under the cover for the throttle cable? Is that also the location of the manifold vacuum hose that is a likely candidate for a failing hose?

I'd like to start replacing the vacuum hoses, but I'd hate to embark upon a complete change when I am not sure that's the cause of my issues. Recall that I changed my evap core over the course of 3 days only to discover that this wasn't the issue for my A/C problem. I don't really want to repeat an exercise like that again.

I am scratching my head on this one now. Thanks for any help.


Song Huang
www.thehuangs.com
2004 XC90 T6 AWD Ruby red
1998 V70 T5 - Hurt your eyes red
2000 S2000 - the non Volvo
1984 BMW 633CSi - I'm diversifying

dbo550
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Year and Model: 95 T5-R, 98 V70
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dbo550

Re: misfires and sputtering 1998 V70

Post by dbo550 » Sat Aug 22, 2009 2:23 pm

My car was acting like yours so I replaced the spark plugs and it got better, but was still stumbling and would die every now and then. I changed my ect and now the car runs flawless, it wasn't throwing an ect code though.



songzunhuang
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Posts: 278
Joined: Thu Jan 08, 2009 9:04 pm
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songzunhuang

Re: misfires and sputtering 1998 V70

Post by songzunhuang » Sat Aug 22, 2009 4:54 pm

I like pictures because they really help me to understand things and I am sure it'll help others who are curious. So I want to understand the vacuum hoses. I took off the throttle cover and I believe I revealed the vacuum tree.

Here's the area covered by the plastic cover. The cover went over the part to the right of the exhaust pipes.
VacTree3.jpg
VacuumTree and throttle control areas are clearly visible in this shot.
VacTree3.jpg (161.67 KiB) Viewed 2760 times
Now here's a closeup of the vacuum tree area. I have put numbered labels on each hose that looked like a vacuum hose to me. Can the more knowledgable folks here identify each of these hoses?
VacTree_labels.jpg
Closeup of the Vacuum tree with labels. Can folks help to identify?
VacTree_labels.jpg (299.66 KiB) Viewed 2765 times
Unfortunately for me, the only hose that looked even slightly worn and or brittle was #5 where it went into that cylindrical looking inline part that's half black and half white.

So I am still struggling with this problem. I see that someone posted a ECT as a possible cause. OK, now todig around to see what that is.

I'm looking forward to hearing back on the vacuum hose functions. Thanks everyone.


Song Huang
www.thehuangs.com
2004 XC90 T6 AWD Ruby red
1998 V70 T5 - Hurt your eyes red
2000 S2000 - the non Volvo
1984 BMW 633CSi - I'm diversifying

songzunhuang
MVS Moderator
Posts: 278
Joined: Thu Jan 08, 2009 9:04 pm
Year and Model: 98 V70 T5, 2004 XC90
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songzunhuang

Re: misfires and sputtering 1998 V70

Post by songzunhuang » Sat Aug 22, 2009 5:11 pm

dbo550 wrote:My car was acting like yours so I replaced the spark plugs and it got better, but was still stumbling and would die every now and then. I changed my ect and now the car runs flawless, it wasn't throwing an ect code though.
OK, it looks like the ECT is an Engine Coolant Temperature sensor. If your car wasn't throwing any codes for this, what made you decide to replace it?

Also, my engine stumbles whether it's hot or cold. It's also throwing misfire codes on ALL the cynlinders. I am not sure I get the connection of how the ECT would be directy affecting that. Mind you, I don't know electronic engine controls super well, but I am relatively mechanically inclined and wish to understand these things more.

Maybe I'll get to this, but I have a few other things to try first.


Song Huang
www.thehuangs.com
2004 XC90 T6 AWD Ruby red
1998 V70 T5 - Hurt your eyes red
2000 S2000 - the non Volvo
1984 BMW 633CSi - I'm diversifying

dbo550
Posts: 67
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Year and Model: 95 T5-R, 98 V70
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dbo550

Re: misfires and sputtering 1998 V70

Post by dbo550 » Sat Aug 22, 2009 8:28 pm

I was suspicious of the ect because the temp gauge would act erratically. The ecu uses the signal from the ect to control the fuel mixture and the car would have to be cranked a long time to get it to start. I would make sure to address any vacuum issues if you think you have them. I have the vacuum and intercooler hose kits from stylin motors, very high quality and money well spent. If you do go the ect route make sure you get the volvo oem one, around $50 at fcp.



songzunhuang
MVS Moderator
Posts: 278
Joined: Thu Jan 08, 2009 9:04 pm
Year and Model: 98 V70 T5, 2004 XC90
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songzunhuang

Re: misfires and sputtering 1998 V70

Post by songzunhuang » Sat Aug 22, 2009 10:13 pm

Thanks for the info on the ECT. I have not had any temp fluctuation issues thus far. As for the vacuum, I think that it's more likely. I'll need to spend some cycles tracking it down. Nothing seems to be easy these days.


Song Huang
www.thehuangs.com
2004 XC90 T6 AWD Ruby red
1998 V70 T5 - Hurt your eyes red
2000 S2000 - the non Volvo
1984 BMW 633CSi - I'm diversifying

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