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Starter relay?

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

toddmr
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Starter relay?

Post by toddmr » Fri Jul 23, 2010 7:11 pm

My 855 won't start.

Put in the key and turn and it doesn't crank.

Christmas tree on the dashboard.

Fuel pump active.

Sometimes I'll get a click like a relay and sometimes not.

I've seen a number of references to a "starter relay" but no instructions on where it is.

Help?!

Ozark Lee
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Ozark Lee

Re: Starter relay?

Post by Ozark Lee » Fri Jul 23, 2010 7:35 pm

Chances are you have a failing PNP switch. Try rowing the shifter back and forth from low to park, quickly, about 20 times and then see if the car will crank.

...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

toddmr
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toddmr

Re: Starter relay?

Post by toddmr » Fri Jul 23, 2010 7:47 pm

I've replaced the PNP switch.

ecbsykes
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ecbsykes

Re: Starter relay?

Post by ecbsykes » Fri Jul 23, 2010 8:17 pm

Bad camshaft position sensors? Or ECT? Usually those two sometimes cause the no-crank problem.

Are there any codes that you can get?
2000 V70XC - 295,000 miles
Hilton Tune, 16T Turbo, Mototec 3" downpipe, Blue injectors, IPD Short Ram Filter, Snabb Intake Piping & RIP kit, do88 Intercooler, TME Dual Exhaust, HID Projectors, R Panels, do88 Silicone Hoses

toddmr
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toddmr

Re: Starter relay?

Post by toddmr » Fri Jul 23, 2010 8:40 pm

ECT?

ecbsykes
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ecbsykes

Re: Starter relay?

Post by ecbsykes » Fri Jul 23, 2010 8:46 pm

Sorry, the engine coolant temperature (ECT) sensor will sometimes not allow the engine to start if it's faulty, although I think usually it will still allow it to crank.

Pretty certain though that the cam position sensor will not allow cranking.
2000 V70XC - 295,000 miles
Hilton Tune, 16T Turbo, Mototec 3" downpipe, Blue injectors, IPD Short Ram Filter, Snabb Intake Piping & RIP kit, do88 Intercooler, TME Dual Exhaust, HID Projectors, R Panels, do88 Silicone Hoses

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pkc303
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pkc303

Re: Starter relay?

Post by pkc303 » Sat Jul 24, 2010 12:54 am

I vote for the cam position sensor.
1995 Volvo 850 T-5R Yellow
1997 Volvo 850R (sold)
2003 Volvo V70 2.4T, K&N air filter, (sold)
1996 Volvo 940 (sold)
1992 Volvo 740 Turbo (sold)
1990 Volvo 240 Wagon (sold)
1987 Volvo 240 Wagon (sold)
1982 Volvo DL (sold)

oldschoolvolvo
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oldschoolvolvo

Re: Starter relay?

Post by oldschoolvolvo » Thu Dec 06, 2012 9:58 am

I'm going to resurrect this thread b/c I have the same intermittent issue as the OP. Happened this morning where turned the key, everything lights up as normal, fuel pump on but no crank. I held the key in the "start" pos for ~20sec before the car turned over and started. PNP has been replaced in the last 2yrs, cam sensor replaced a few months ago, no CEL codes. My gut feeling is there is a sluggish relay somewhere. Any thoughts?
-Mike

Current:
1979 242 DL

Previous:
1998 V70 T5
1992 240 GL

cn90
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cn90

Re: Starter relay?

Post by cn90 » Thu Dec 06, 2012 10:14 am

The 1998 S/V70 has starter relay (previous years 1994-97 has no starter relay).
To test the starter motor, remove the Starter Relay, use a jumper wire and jump 30 and 87, the starter motor should run, if not the problem is in the wiring or starter motor itself.


I made a diagram here for all the fuses/relays for the 1998 S/V70:

Image
Last edited by cn90 on Thu Dec 06, 2012 2:08 pm, edited 1 time in total.
2004 V70 2.5T 100K+
2005 XC90 2.5T 110K+

oldschoolvolvo
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oldschoolvolvo

Re: Starter relay?

Post by oldschoolvolvo » Thu Dec 06, 2012 10:31 am

awesome! thank you!
-Mike

Current:
1979 242 DL

Previous:
1998 V70 T5
1992 240 GL

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