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cranks but will not start

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

cranks but will not start

Postby satch77 » 29 Oct 2009, 17:46

1999 Volvo V70 XC Wagon 2.4 turbo charged, car was running, slowed up to make turn and car shut off, engine cranks over, started back up, but then immediately shut off, since then crank is good, but will not start and keeps a code P0342, Camsensor. Was advised to replace sensor, replaced sensor with new geniune Volvo camsensor, and still having same problem and same code. Initial code was POO14 along with code P0342, but since sensor installed and engine cranking, only P0342 shows up.

Car has 145K, had timing replace at 105K

Please advise....HELP, have to get son back to college this weekend!
satch77
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Re: cranks but will not start

Postby matthew1 » 29 Oct 2009, 19:49

Start with the basics first: are you out of fuel? If you run low often you run the risk of clogging the fuel filter or ruining the pump. Do you have fuel pressure at the rail?

Do you have spark? Are the plugs ok?

Here's a post by Lee with a no-start troubleshooting checklist.
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1997 850 T5, MBC, tune, strut brace, dying paint
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Re: cranks but will not start

Postby satch77 » 30 Oct 2009, 01:08

I checked fuel press. it is 60psi when ignition is turned to on. when i am cranking engine over it stays at 60psi steady. I have good spark on all 5 spark plugs when cranking engine over. I checked all 5 coils at the same time cranking,all were showing good spark. when i was about to check compression i noticed piston had lots of gas on top of it. i found compression at about 50psi.on about all cylinders.i was thinking maybe cyldrs.got washed down with gas from extended cranking.cleaned out with air press.then put a little oil in cyldrs.then checked compression again went to almost 100-110.i guess i will let sit overnight and try again tomorrow. maybe i will have better luck. appreciate anyones help on this.
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Re: cranks but will not start

Postby jblackburn » 30 Oct 2009, 01:14

Your compression should be much higher than that. You likely drowned the cylinders in gas & it can't get up enough compression to start.

Check this out:

http://www.brickboard.com/AWD/volvo/1381779/S70/easy_fix_lawn_mower_syndrome.html
'98 S70 T5 218K miles
2012 Chevy Cruze LT 6MT


A learning experience is one of those things that says, "You know that thing you just did? Don't do that."

mercuic: Long live the tractor motor!
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Re: cranks but will not start

Postby satch77 » 30 Oct 2009, 16:15

ok,this morning i checked compression and it is between 100-125 on all 5.cranks over good,but still won`t come to life.now it seems to be too much fuel in cylinders,all wet.still getting p0342 code during cranking. any suggestions what to try or look for next? i just do not want to keep cranking and burn up starter or wash cylds. down again.
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Re: cranks but will not start

Postby Ozark Lee » 30 Oct 2009, 19:06

P0342 is a camshaft position sensor error. The car won't run without the camshaft position signal.

it is a pricey part so check the connector first to make sure it isn't corroded.

...Lee
'94 850 N/A
'96 850 N/A
'96 Platinum Edition Turbo
'98 S70 T5
'99 V70XC - RIP Killed by a drunk driver.
Previous: 1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe
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Re: cranks but will not start

Postby Craigd2599 » 30 Oct 2009, 20:23

I don't know about your year, but on my 95 I had a faulty TCP and it will throw a Camshaft position sensor code sometimes. Plus a TCP will keep it form starting. It's a cheaper fix than the CPS...by about $300. try that first
Craig D
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Re: cranks but will not start

Postby Checksix » 31 Oct 2009, 04:38

On my 2001 T5a I had a very similar situation. Turned out to be the pressure side of the turbo hose to the inter cooler had come off down between the engine and the intercooler (where it was difficule to see). I never did get codes, as I finally saw the problem, used my tool kit to reattach the hose and was on my way. My root cause was I had done a spark plug change and had loosened this connection in the process. I had reattached the hose, but had forgotten to tighten the hose clamp. So look for breaks in the system!

Please let the group know what the issue was once you find it. It is how we all learn!

Jerry
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73 P1800ES 370K miles (RIP)
73 145 about 320K mile (gone with the "X" long ago)
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Re: cranks but will not start

Postby satch77 » 31 Oct 2009, 14:12

what is a tcp,were is it located,is there a way to see if it is bad.thanks for the help so far everyone.
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Re: cranks but will not start

Postby Craigd2599 » 31 Oct 2009, 14:22

temperature coefficient probe. (I may be mistaken on the nomeclature but thats pretty close.) it is in your thermostat housing. It's a small sensor just beneath the neck on the housing. They run about $20 at the local parts house. I doubt if that's a part that absolutely NEEDS to come from Volvo. I changed mine right in the parking lot with one wrench. My car was also throwing the cam position sensor code because of this and it started right up after I changed it. I cleared the codes and it never came back.
Craig D
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1995 850 GLT Emerald Green 155K
Lusting after an S80 Turbo
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Re: cranks but will not start

Postby Ozark Lee » 31 Oct 2009, 15:33

Otherwise known as the ECT (Engine Coolant Temperature) sensor but I have never had a bad ECT keep the car from starting. The giveaway symptom on that failure is that the radiator cooling fan runs full time and continues to run after the car is shut off.

...Lee
'94 850 N/A
'96 850 N/A
'96 Platinum Edition Turbo
'98 S70 T5
'99 V70XC - RIP Killed by a drunk driver.
Previous: 1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe
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Re: cranks but will not start

Postby satch77 » 31 Oct 2009, 15:45

my friend brought over his old snap on scanner,and it shows coolant is at 61 degrees which it is outside.we noticed throttle % reads 20.7 with the gas pedal not even touched.does this seem right.when pressing down on gas pedal % reading does not change at all.could this be a problem with the tcm possibly.
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Re: cranks but will not start

Postby Craigd2599 » 01 Nov 2009, 22:58

yeah that thing. It did keep mine from starting
Craig D
Philly boy stuck in Nashville
1995 850 GLT Emerald Green 155K
Lusting after an S80 Turbo
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