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98 XC: VERY bad starting sound after replacing injector seals

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
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1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
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CIK7
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98 XC: VERY bad starting sound after replacing injector seals

Post by CIK7 » Tue Jun 16, 2020 4:59 pm

I removed my injectors to change filters and seals and just now got it back together and tried to start it. at first it started and was idling at about Eleven hundred RPMs before working down but it didn't sound like it was idling at 1100 but maybe 600 or so. so I shut it off and restarted it and the engine knocked and there's banging so I shut it off. now everytime I try to start it there's big banging going on.
1998 V70 XC black ($1K trade, Mi:143,995/151K, immaculate engine, totalled 5/2/20)
1998 V70 XC white ($50 cash, junk, donor for my black XC)
2001 V70 Ba white (sold)
2009 Impala LT 3.5L (sold)

Plans for my 98 XC: 16T/18T, P2 M66 swap, logo/badge delete excl grille

scot850
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Re: 98 XC: VERY bad starting sound after replacing injector seals

Post by scot850 » Tue Jun 16, 2020 5:25 pm

Did you drop anything down an injector port by chance? Did one of the pintel rings fall off the injectors?

I would suggest that you go back over what you did. As a wise man once said to me, if the issue wasn't there before you started then it was something you did.

Is the banging a mechanical noise or a back firing type noise?

Neil.
2000 V70 R - still being an endless PITA
2006 XC70
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - New project and test bed - Sold

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CIK7
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Re: 98 XC: VERY bad starting sound after replacing injector seals

Post by CIK7 » Tue Jun 16, 2020 5:50 pm

scot850 wrote:
Tue Jun 16, 2020 5:25 pm
Did you drop anything down an injector port by chance? Did one of the pintel rings fall off the injectors?

I would suggest that you go back over what you did. As a wise man once said to me, if the issue wasn't there before you started then it was something you did.

Is the banging a mechanical noise or a back firing type noise?

Neil.
I didn't drop anything down the ports. I even looked. I found that one of the fuel injectors wasn't working and swapped it for new one. I tried starting again and I think the first start damaged a piston or something because it sounds bad. what happens when one fuel injector doesn't work? does it get the piston messed up?
1998 V70 XC black ($1K trade, Mi:143,995/151K, immaculate engine, totalled 5/2/20)
1998 V70 XC white ($50 cash, junk, donor for my black XC)
2001 V70 Ba white (sold)
2009 Impala LT 3.5L (sold)

Plans for my 98 XC: 16T/18T, P2 M66 swap, logo/badge delete excl grille

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CIK7
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CIK7

Re: 98 XC: VERY bad starting sound after replacing injector seals

Post by CIK7 » Tue Jun 16, 2020 6:26 pm

scot850 wrote:
Tue Jun 16, 2020 5:25 pm
Did you drop anything down an injector port by chance? Did one of the pintel rings fall off the injectors?

I would suggest that you go back over what you did. As a wise man once said to me, if the issue wasn't there before you started then it was something you did.

Is the banging a mechanical noise or a back firing type noise?

Neil.
now my car won't start
1998 V70 XC black ($1K trade, Mi:143,995/151K, immaculate engine, totalled 5/2/20)
1998 V70 XC white ($50 cash, junk, donor for my black XC)
2001 V70 Ba white (sold)
2009 Impala LT 3.5L (sold)

Plans for my 98 XC: 16T/18T, P2 M66 swap, logo/badge delete excl grille

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Re: 98 XC: VERY bad starting sound after replacing injector seals

Post by volvolugnut » Tue Jun 16, 2020 6:49 pm

Did you do ANY other work when you changed injectors/seals? What else did you remove, if anything, to gain access to injectors?

volvolugnut
2001 V70 T5, 1986 244DL, 1983 245DL, 1975 245DL, 1959 PV544, multiple parts cars.

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Re: 98 XC: VERY bad starting sound after replacing injector seals

Post by FLXC90 » Tue Jun 16, 2020 7:25 pm

can you make and post a video/audio? Recheck all your connectors. try disconnecting the leads one at a time, and see if you can determine a problem.
Current Volvos:
1998 V70 T5, 112k sat 5 years, still in mechanical coma (finally at the top of the pile )
2004 XC90 T6 AWD: 186k, 60 on transaxle ( traded in )
1998 POS70 N/A: DD/training aid, 236k but really about 240k, I think...ABS module( passed on to son who sold it)

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CIK7
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Re: 98 XC: VERY bad starting sound after replacing injector seals

Post by CIK7 » Tue Jun 16, 2020 7:43 pm

volvolugnut wrote:
Tue Jun 16, 2020 6:49 pm
Did you do ANY other work when you changed injectors/seals? What else did you remove, if anything, to gain access to injectors?

volvolugnut
no other work. if a fuel injector is unable to inject fuel, that means the piston won't be able to be powered to move. can this break crankshaft or piston parts? I'm hoping not. I'm prepping for that scenario by shopping for another volvo.
Last edited by CIK7 on Tue Jun 16, 2020 7:47 pm, edited 1 time in total.
1998 V70 XC black ($1K trade, Mi:143,995/151K, immaculate engine, totalled 5/2/20)
1998 V70 XC white ($50 cash, junk, donor for my black XC)
2001 V70 Ba white (sold)
2009 Impala LT 3.5L (sold)

Plans for my 98 XC: 16T/18T, P2 M66 swap, logo/badge delete excl grille

User avatar
CIK7
Posts: 344
Joined: Mon Jan 14, 2019 8:15 am
Year and Model: 1998 Volvo V70 XC
Location: Oklahoma
Has thanked: 68 times
Been thanked: 3 times
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CIK7

Re: 98 XC: VERY bad starting sound after replacing injector seals

Post by CIK7 » Tue Jun 16, 2020 7:45 pm

FLXC90 wrote:
Tue Jun 16, 2020 7:25 pm
can you make and post a video/audio? Recheck all your connectors. try disconnecting the leads one at a time, and see if you can determine a problem.
got an XC90 player on here, eh? welcome! well I think my battery is totally dead. tried jumping it too and didn't work.
1998 V70 XC black ($1K trade, Mi:143,995/151K, immaculate engine, totalled 5/2/20)
1998 V70 XC white ($50 cash, junk, donor for my black XC)
2001 V70 Ba white (sold)
2009 Impala LT 3.5L (sold)

Plans for my 98 XC: 16T/18T, P2 M66 swap, logo/badge delete excl grille

scot850
Posts: 6049
Joined: Mon Apr 05, 2010 2:46 pm
Year and Model: 2000 V70 R
Location: Calgary, Alberta, Canada
Has thanked: 12 times
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scot850

Re: 98 XC: VERY bad starting sound after replacing injector seals

Post by scot850 » Tue Jun 16, 2020 11:28 pm

The car should still start if an injector is bad and not working. Car will run rough. Try removing the spark plugs and see if any of the cylinders is full if fuel. If one is leaking you may have hydro-locked the engine.

Neil.
2000 V70 R - still being an endless PITA
2006 XC70
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - New project and test bed - Sold

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Re: 98 XC: VERY bad starting sound after replacing injector seals

Post by abscate » Wed Jun 17, 2020 4:16 am

Don’t sweat, you haven’t broken anything serious. Rough running sounds like Hades sometimes.
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