Question about Volvo 850

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We have 95 volvo turbo 4 door it will not go it has no spark,we replaced the cam shaft censor on it . i was told to check relays but have no idea were they are also told to check the batterie ground cable,i would really like to get this car running again its in mint condition runs good when it does run,it has maybe 200,000 on it .i've had it to two different shops spent 700.00. on it so far,nobody can get it going don't really want to take it to a dealer @ 90.00 HR,CAN SOMEONE OUT THERE HELP? ken

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  • kendiane731 Aug 31, 2010

    k thanks i'll check it out when i get the key back from my kid

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There should be a fuse panel in the engine compartment. Diagram I'm looking at (here: http://www.volvoclub.org.uk/tech/service/850/FusesAndCircuitBreakers.pdf) has 36 fuses and 3 or 4 circuit breakers. Fuse #1 is 15 Amp for ignition and fuel injectors. Check this fuse. The relay box is under the dash, but i don't see any relays for ignition.
If fuse #1 is good, check for voltage at the coil pack. If no voltage at the coil pack, have someone jiggle the key in the ignition while checking voltage at the coil to see if the voltage is intermittent. If yes, you have a bad switch. If no, I would next replace the coil. If you don't have a meter, you can use a simple 12 volt test light for this test. Get one from your parts store--it looks like a screwdriver that's pointed at one end and has a cable with an alligator clip. Hook the clip to a metal point on the engine or firewall and touch the tip to the + side. The light inside should come on if the coil has power applied from the ignition switch.
So these are the parts I'm looking to check--fuse, switch, coil. The coil is $30 and is a better investment than the switch, unless you're sure you have a bad switch.

Posted on Aug 31, 2010

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If u have dash lights not fuse more likely ur ecm9electronic control module/also known as ignition switch

Posted on Aug 31, 2010

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