My 2001 S40 does not start. The battery, alternator, starter, starter relay, and ignition switch have all been changed. When you try to start, it sometimes makes a buzzing noise, but nothing happens. All lights come on but just won�t start. Any ideas.
Denisemc99
07-21-2019, 12:01 PM
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Sounds like its time to break out the multimeter
Some random thoughts — cables from battery ok? battery to ground, battery to starter? Fuses/relays ok? any immobilizer issues or warnings> — you can try resetting by locking/unlocking the car 5x with the fob. Is the PNP switch ok? (ie if the shifter thinks the car’s not in park, no start. ) try the old shifter row.
You may be able to find a Haynes manual PDF online or similar to find a wiring diagram. Google around for that.
07-21-2019, 12:40 PM
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Původně odeslal mt6127
Sounds like its time to break out the multimeter
Some random thoughts — cables from battery ok? battery to ground, battery to starter? Fuses/relays ok? any immobilizer issues or warnings> — you can try resetting by locking/unlocking the car 5x with the fob. Is the PNP switch ok? (ie if the shifter thinks the car’s not in park, no start. ) try the old shifter row.
You may be able to find a Haynes manual PDF online or similar to find a wiring diagram. Google around for that.
Thank you for this. I will start checking these things out. As far as I know the relays are okay, no immobilizer warnings ( though I don�t have a stock steel so idk where that would display. I tired the shifter row and it didn�t work. I�m stumped as to what could be wrong. So many new parts and money invested just for it to not start.
Denisemc99
07-21-2019, 01:51 PM
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So it�s none of the above. What else could it be.
Denisemc99
07-21-2019, 03:20 PM
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Replacing parts at random is seldom the best way to fix a problem. Much better (and cheaper!) to do a little diagnosis first.
There are a million or so posts on this subject, but basically you need a voltmeter — or at least a simple 12 volt test light. Then you test to see if you have a solid 12 volts to the big red wire on the starter (when attempting to start the car), then you test the «signal» lead to the starter (you should also have a solid 12 volts there when trying to start the car). If either of these is missing, you start tracing back until you find where the status of a part goes from «expected» to «unexpected». If you DO have both of those voltages and you’re still not getting the starter to kick in, you have a bad starter, or possibly a bad ground (you can check this by measuring the voltage from the battery’s negative terminal (not the cable clamp) to the engine block / starter housing.
07-21-2019, 05:25 PM
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Původně odeslal chlupáček
Replacing parts at random is seldom the best way to fix a problem. Much better (and cheaper!) to do a little diagnosis first.
There are a million or so posts on this subject, but basically you need a voltmeter — or at least a simple 12 volt test light. Then you test to see if you have a solid 12 volts to the big red wire on the starter (when attempting to start the car), then you test the «signal» lead to the starter (you should also have a solid 12 volts there when trying to start the car). If either of these is missing, you start tracing back until you find where the status of a part goes from «expected» to «unexpected». If you DO have both of those voltages and you’re still not getting the starter to kick in, you have a bad starter, or possibly a bad ground (you can check this by measuring the voltage from the battery’s negative terminal (not the cable clamp) to the engine block / starter housing.
I will definitely try this out when my mechanic comes back. I wonder why he didn�t try this in the first place. $300 later.
after doing all of this, still nothing. Could it be the ignition itself. I mean, it�s all good in first and second position, the lights and radio come on, but when turned to third, we get nothing. just a little bit of a buzz, which I assume is the fuel pump engaging. Found that no power is getting to the starter to make it want to crank over. And the starter is new. Also I�ve read a lot up on this and didn�t just replace parts to replace them. Just trying to get my car to start.
