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My name is ***** ***** I am a Volvo dealership technician. I am going to try to help with your question today. When you are cranking it, does the RPM needle jump and bounce around?
Okay, does the problem seem to only happen after the car sits for a while or does that not seem to matter?
That car doesn't have a power steering system that would set that warning message. Did it by chance say "power system service required"?
Okay, no problem. Just wanted to make sure so we're on the same page. That message come on while the car was running? Did the message go away?
Okay, thank you. First, the "Reduced Engine Performance" and the hard start. These are likely related, which you probably already assumed. Because that warning message comes up, there are fault codes stored that would need to be read to give a better idea as to the cause. But based on what I have seen, that warning message is usually either related to the throttle body or a bad RPM sensor. A bad RPM sensor would cause the tachometer needle to bounce and jump while cranking, which is why I asked about that. If that isn't happening, you most likely have a throttle related problem, which is pretty common on that model. Sometimes the throttle just needs to be cleaned. Other times it needs replacement. I have also seen problems with the electrical connection at the throttle and/or ECM. Volvo sells a new harness to go between the two for this problem.
The "Power System Service Required" warning message is for the charging system, and means the alternator is not charging. I know you mentioned it was replaced before. Was it a Volvo alternator or an aftermarket one?
If the light is staying on while driving, the alternator would need to be checked. Make sure the serpentine belt is in tact and if so, then there is probably a problem with the alternator. I've seen plenty of cheap aftermarket ones fail rather quickly, but not the Volvo ones. Anything is possible, of course.
Do you have a Volvo dealer nearby?
Volvo has a program called Volvo Service Advantage which is free to all Volvo owner's. It includes free diagnostics for warning lights. So if you have a dealer nearby, you can have them diagnose the warning messages for no charge without obligation. However, if the Power System Service Required message is staying on, driving the car with it on will wear down the battery and could cause you to get stranded
Some auto parts stores will also read codes for free, but their generic scanners may not be able to read all fault codes.
Click here for info on Volvo Service Advantage
Not likely. Unless the constant cranking wore down the battery, which then caused the alternator to struggle to recharge it.
I show Borton Volvo is about 7 miles from Minnetonka.
They would be your best bet because the diagnostic equipment we have at the dealer can read all fault codes in all systems. If there is a low voltage issue caused by an alternator problem, it can cause other warnings to come on. However, because the Power System Service Required message came on after the Reduced Engine Performance warning, I don't think that is the case.
Let me know if you have any other questions. If you find a local auto parts store that can scan the codes, you can post them here and I might be able to narrow it down some more. Please remember to select a rating for my service at the top of your screen. You can always follow up at any time.
I'm just checking back to see if you had any other questions. Let me know how i can help. Please remember to select a rating for my service, as that is the only way we are credited here. You can always follow up at any time. Thank you.
It has been a couple weeks and I have not heard back. Did you still need help with this?