Volvo 850 Made from 1993 to 1997, this Volvo line was available in both a wagon and a sedan, both with were graced with several trim levels.

replaced pnp swicth wont run

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Old 08-31-2013, 03:59 PM
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Default replaced pnp swicth wont run

I got a pnp switch from the junkyard and took it apart cleaned it,installed it.car was a little hard to start but ran for a short test drive when parking car stalled and wont start.got spark and gas could something hav e not been done right when I cleaned it?should I reinstall the origanal one?
 
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Old 08-31-2013, 08:48 PM
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Why did you change it if the one on the car was fine?

If you haven't isolated a car problem to a single part, make sure the part you take off is broken before you replace it. I write from experience...
 
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Old 08-31-2013, 09:23 PM
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What switch did you get and why did you think that was the problem? I get stuff from P n P but I expect some of it might not be any good, other cars could have the same problem I'm trying to fix on mine.
 
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Old 09-01-2013, 02:54 AM
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Originally Posted by VTBricked
Why did you change it if the one on the car was fine?

If you haven't isolated a car problem to a single part, make sure the part you take off is broken before you replace it. I write from experience...

because the one on the car was NOT fine flashing arrow and taking off in third.
 
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Old 09-01-2013, 02:59 AM
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Originally Posted by Phil 850
What switch did you get and why did you think that was the problem? I get stuff from P n P but I expect some of it might not be any good, other cars could have the same problem I'm trying to fix on mine.
The PNP switch aka the neutral safety switch.Flashing arrow taking off in third.
 
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Old 09-01-2013, 07:54 AM
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You could try the original but the PNP should only cause it to not turn over if it's out of adjustment and moving the shifter would allow it to crank so you'd know it's only an adjustment.

Since you say you have spark I'm going to assume it's cranking, just not starting. The PNP could also cause some shifting issues if incorrectly adjusted but I don't think it can cause a no start. Maybe you bumped a vacuum line loose or an electrical connector in that area ?? If you pulled the air filter assembly there are a lot of different things that could have been affected.

What year, turbo or NA
 
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Old 09-01-2013, 08:04 AM
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1997 glt turbo yes it cranks even ran but stalled out and wont start.was hard to start with new switch at first could I have messed something up inside the switch?
 

Last edited by ScottyJ; 09-01-2013 at 04:21 PM.
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Old 09-01-2013, 08:37 AM
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I know I knocked one vacuum line loose but fixxed it
 
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Old 09-01-2013, 06:22 PM
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Originally Posted by ScottyJ
I got a pnp switch from the junkyard and took it apart cleaned it,installed it.car was a little hard to start but ran for a short test drive when parking car stalled and wont start.got spark and gas could something hav e not been done right when I cleaned it?should I reinstall the origanal one?
Dude - The reason I asked about the original one was because in your last sentence, you asked about reinstalling the original one. What else was I to think? And I wasn't the only one thinking this. Good luck as I'm done with this thread.
 
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Old 09-01-2013, 06:51 PM
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Well spark is easy to tell if you have it or not. How did you determine you have fuel ??
You might be to the point of checking compression. If you have spark and fuel that would bring up the chance the timing jumped.
 
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Old 09-02-2013, 11:00 AM
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Originally Posted by VTBricked
Dude - The reason I asked about the original one was because in your last sentence, you asked about reinstalling the original one. What else was I to think? And I wasn't the only one thinking this. Good luck as I'm done with this thread.
sorry I did not mean to offened anyone I should have worded it better.I knew the car ran with the origanal switch.
 
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Old 09-02-2013, 11:33 AM
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Originally Posted by ScottyJ
sorry I did not mean to offened anyone I should have worded it better.I knew the car ran with the origanal switch.
Scotty - you're a keeper on this forum!
 
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Old 09-02-2013, 11:51 AM
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ok put everything back together still wont start.when cranking if I flutter the gas pedal it trys to start but doesn't any sugestions?
 
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Old 09-02-2013, 12:37 PM
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I just noticed the cam position senor conector is in pieces with the wires part way out,I have spare so I'm going to change it out.the exposed connections may have been shoting to each other.
 

Last edited by ScottyJ; 09-02-2013 at 01:03 PM.
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Old 09-02-2013, 02:06 PM
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ok stared and ran for two minutes stalled when I stepped on the gas,exhust smelled rich.keeps trying to start.Going time check timing marks see if they line up right.
 

Last edited by ScottyJ; 09-02-2013 at 02:09 PM.
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Old 09-02-2013, 03:05 PM
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looks to me like the front cam is off by 1/2 to 2/3 of a tooth.do I need to change the timing belt etc ? Is this enough to have bent values?
 
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Old 09-02-2013, 05:36 PM
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I'm not sure how many teeth and you start hitting valves but I do know it's more than one.
I'd do the compression test anyway just so you know where you are at.

How does the timing belt look ?? Do you know when the last time was, any cracking?? The water pump ??

It would be nice if you went into "UserCP", "Signature" and added some basic info on your car. That way we (I) wouldn't have to go back to the info buried down 5-6 posts in the thread. It's just so much easier and you can see a lot of us do it. Just a thought.

"sorry I did not mean to offened anyone I should have worded it better.I knew the car ran with the origanal switch."

It goes both ways. Sometimes it's the OP, sometimes it's the responder. People get frustrated and sometimes take it out on the wrong person or you're so busy thinking of what you're trying to say you may not say it the way you want to. Gracious of you to apologize and I've been told I'm a bit prickly at times so I know how that goes.
 

Last edited by Kiss4aFrog; 09-02-2013 at 05:40 PM.
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Old 09-02-2013, 07:02 PM
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the belt looks good no cracking but I am not sure when it was changed last I do have the FCP parts kit for it.after I changed out the cam sensor it would start(hard to get it to)and run for two minutes then stall.Have to wait 30-60 minute before I can get it to start and run again,fuel pump comes on (I could hear it).smoke from the dip stick tube when cranking but not after starting.I'll try to get a compression tester from autozone tomarrow.I have owned the car for one year.
 
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Old 09-03-2013, 05:44 PM
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well worked on it today and was getting no spark at all.A friend stopped by to be my key turner turns out to be the coil,got one at pull and pay is now running huray!
 
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Old 09-03-2013, 09:29 PM
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Life is good. Time to relax and have a cold one

 
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